Megger DDA-1, DDA-3000, DDA-6001, DDA-6002, DDA-3001 Instruction Manual

INSTRUCTION MANUAL

I I

, I

For

i

CIRCUIT BREAKER

TEST

SETS

MODEL DDA-3000/6000

r·

\

It is essential before putting

that

this

the

equipment

instruction

in

service.

book

be read

thoroughly

by

the operator

or

the

test

equipment

PartNo._17177

Rev. 4, 7/3/02

Revision History

Revision

1 27168 2 27356 3 27999

4

ECN#

29358

Date

11/11/96 11/14/97

3/12198

7/3/02

The

information and data contained within this instruction manual are proprietary

property

one such proprietary information as well as all rights under any such patent, none is waived

The

equipment described were procured with "Limited Rights" to technical data as described

in

ASPR 9-203

Copyright

of

A

or

more

by

recipient,

AVO

VO

International.

U.

S.

patents. A

the submission

if

a Government agency, acknowledges that this instruction book and the

(b).

International

IMPORTANT

The

equipment described herein may be protected

VO

International specifically reserves to itself all rights

of

this instruction manual.

Inc.

1995, 1996, 1997

of

by

to

which

, i

TABLE OF CONTENTS

SECTION I ................................................................................................................................................................. 1

1.

INTRODUCTION .......................................................................................................................................... 1

A.

GENERAL DESCRIPTION & SPEFICATION BULLETIN ................................................................... 1

1.

DESCRIPTION

A.

GENERAL DESCRiPTION ...................................................................................................................... 4

B.

CONTROLS AND INSTRUMENTATION .............................................................................................. 4

SECTION III ............................................................................................................................................................... 9

1.

FRONT PANEL DISPLAY AND PROGRAMMING MENUS ................................................................... 9

2.

Flow Diagram

A.

METERING DISPLAY ............................................................................................................................

B.

MAIN MENU ............................................................................................................................................

C. D. E. F.

SECTION IV INPUT AND OUTPUT CIRCUITS ................................................................................................

1. A.

B. C. D.

2. A.

.B.

C.

SECTION V .............................................................................................................................................................

1.

2.

BREAKERS .........................................................................................................................................................

3.

RELAYS

4.

5.

6.

SECTION

2.

SECTION VII ...........................................................................................................................................................

1.

LCD CONTRAST MENU ...................................................................................................................

SCR CONTROL MENU .....................................................................................................................

PULSE DURATION AND FIRING ANGLE MENUS ..........................................................................

ACQUISITION CONTROL

INPUT: ..........................................................................................................................................................

INPUT VOLTAGE ...................................................................................................................................

INPUT LEADS .........................................................................................................................................

GROUNDING ......................................................................................................................................

SAFETY PRECAUTIONS ..................................................................................................................

OUTPUT ......................................................................................................................................................

SELECTION OF OUTPUT CONNECTIONS ......................................................................................

OUTPUT CONNECTIONS ....................................................................................................................

DUTY RATINGS AND OVERLOAD CAPACITIES ........................................................................

TEST PROCEDURES FOR TESTING TEST PROCEDURE FOR TESTING

MAINTENANCE OF PROTECTIVE APPARATUS MAINTENANCE OF MOTOR OVERLOAD

...............................................................................................................................................................

MAINTENANCE OF MOLDED CASE CIRCUIT BREAKERS ..............................................................

MAINTENANCE OF LOW VOLTAGE POWER CIRCUIT BREAKERS .............................................

SUGGESTED RECORD FORMS - INSPECTION AND TEST RESUL TS .........................................

VI

............................................................................................................................................................

SERVICE DATA ..........................................................................................................................................

SCHEMATIC DRAWiNG ...........................................................................................................................

of

CONTROLS

of

Display Menus ...............................................................................................................

and

MENU

INSTRUMENTATION ................................................................... 4

........................................................................................................

OF

MOTOR OVERLOAD RELAYS ......................................

OF

MOLDED CASE AND LOW VOLTAGE POWER CIRCUIT

10 10 10 11 11 11 12 14 14 14 14 14 14 14 14 15 16

19

19 22 26

29 31 33 34 34 37 37

I

I .

i

I

~

,

Megger

..

DDA-3000

Universal Circuit Breaker Test

and

DDA-6000

Sets

DDA-3000 Universal

and

DDA-6000

Circuit

Breaker

•

Model Instrumentation

•

High-current DDA-6000;

•

Digital

•

Variable

output

•

Compliant test

Test Sets

DDA-1

signal processing (DSP)

current

guidelines

Digital

and

output:

35,000 A for

pulse

time

control

with

NEMA

Data Control

60,000 A for

and

AB-4

Acquisition

System

Model

DDA-3000

technology

firing

angle

Model

I I

1-'

i

..

I'

I

DESCRIPTION

Incorporating Models specifically circuit breakers solid-state trip devices.

NEMA

with Tests are

condition. Each test

[

provides a variable, high-current output. The test sets incorporate all control circuitry necessary efficiently

The unique transformer high-capacity test set in a very compact size. Advanced control

APPLICATIONS

Universal all low-voltage, molded-case ac circuit breakers Westinghouse, Federal Pacific, Square D, Gould, ITE,

Siemens

Model

DDA-3000 is rated for testing breakers 3000 amperes. Model DDA-6000 breakers

Megger circuit trouble-free operation.

The test sets also applications,

the

latest technological advancements,

DDA-3000

performed

to and

and

instrumentation provides exact testing capacity.

in

up

and

DDA-6000 Series are designed

to

test low-voltage

equipped

AB-4 test guidelines.

by

set

test direct-acting circuit breakers accurately,

safely.

and

application,

produced

and

other

to 6000 amperes. Rugged

breaker

such

test sets will provide years

may

be

as verifying

power

and

molded-case

with thermal, magnetic

The

units are fully compliant

simulating is

an

the

manufacturers.

used

an

overload

integrated test system that

and

instrumentation

circuit design results in a very

test sets will test virtually

and

metal-clad, direct-acting

by

General Electric,

is

rated for testing

and

reliable,

for other high-current

the

ratio

of

current

up

or

ABB,

to

or

fault

digital

of

transformers testing protective relays.

All

Model DDA-3000

features, instrumentation

The

only changes

their size, weight

FEATURES

III Initiating

circuit provides modes automatically pulses pulse duration. This provides additional testing capabilities for electromechanical devices. A short pulse duration also limits of

the

In

the until manually device and

II

Zero

of

a contactor eliminates closing-time error initiation at current waveform every time. Initiation at crossover eliminating accurate, repeatable test results currents of

instantaneous

and

performing

of

high-voltage breakers

and

in

the specifications

and

AND

BENEFITS

control

of

output

breaker maintained mode,

under

de-energizes the output.

de

offset:

point

dc

of

very short duration, as

circuit: Fully digital initiating control

both

duration.

under

turned

test operates,

Use

to

initiate

the

zero crossover

ensures symmetrical

offset in

or

heat

DDA-6000 test sets have identical

and

maximum output-current capacity.

pulsed

The

the

output

test while setting

the

off or, during timing test, until the

of

digitally controlled

the

short-time delay trip elements.

runs

or

primary injection

and

their associated

operational characteristics.

among

and

maintained control

pulsed

mode

to

any

programmed

and

solid-state trip

the

output

remains energized

which

both

stops

output

of

the

and

thereby

point

of

the

output

current waveform. Therefore

are

assured

when

conducting tests

the

units are

the

preheating

test current.

the

timer

SCRs

instead

test

set

ensures precise

output

the

zero

current

even

by

with

Meggerm

The

Model

DDA-1 control

panel

digitally

s.amples

the

output

current

and

mathematically

calculates

DDA-3000

and

DDA-6000

Universal Circuit Breaker Test

the

current supplied

to

the

breaker

under

Sets

test.

The digital control initiate at crossover will allow

any point

the

waveform for a complete investigation

of

the

SCRs

also allows the unit

point

within 90 degrees

of

the

output-current waveform. This

intentional insertion

of

the zero

of

a dc offset into

of

a breaker's

operation.

•

Compact

enclosure:

Improvements

in

transformer circuit design have resulted in a very high-capacity test set

in

a single, relatively small enclosure. For safety mobility, metal enclosure with a lifting eyes

the

test

set

is

housed low

and

large, locking swivel casters with brakes.

in a single, rugged,

center

of

gravity,

tow

ring,

To increase maneuverability, all four casters swivel;

they

also

can

be

however, easily. The movement

compact

through

locked into a fixed pOSition

size

of

test sets permits easy

narrow doors. Controls

and instrumentation are positioned so that the operator Simultaneously observe

•

Construction:

operation,

Built for years

the

test sets include rugged instrumentation and controls designed to withstand shock

of

frequent transportation. They

removed from

the

• Protection: Fuse, circuit breaker

the

circuit breaker

enclosure .

under

of

trouble-free, reliable

the

vibration

need

never

and

overload

test.

and

protective devices are incorporated. The output-initiating SCRs

are forced-air cooled, provide protection from overheating. Emergency pushbutton is

provided

and

temperature sensors

to de-energize all

input

stop

power

the test set.

•

Ground

that before

•

Accessory

outlet with a capacity convenient

safety

the

test

the

set

chassis

output

interlock:

of

An

interlock circuit ensures

is

connected to system

the

test

set

can

be

outlet: A ground-fault-protected, 120 volt

of

1.2

kVA

is

proVided for

connection

of

accessory equipment.

ground

energized.

Other voltages are available internally for customer-installed outlets.

INSTRUMENTATION

Model

DDA-l:

instrumentation

AND

CONTROLS

The

Digital Data Acquisition

and

control system was deSigned

to

the

and

sheet

can

be

specifically and

to

provide precise control

accurate metering

of

the

breaker

of

the

under

Model DDA-1 uses the latest in digital signal processing (DSP) technology. This technology provides complete digital control

of

the

SCRs

and

digitally samples

current for high-accuracy measurements.

Digital

current digitally that is supplied to increases provides extreme flexibility in displayed. For example, continuous current, the digital sampling value

ammeter:

the

of

the

current.

Model DDA-1 samples

and

mathematically calculates

the

breaker

accuracy

of

the

ammeter systems

when

output

waveform

under

test. This process

what

current value is

the

test

set

ammeter

and

can

the

is is continuously display a true rms

For measuring short-duration currents, Model DDA-1 can calculate selection from the soft control buttons

1. DDA-1 current pulse. For any rms measurement

2. peak current from

For any

can

For

any

current

the

output

current in

current greater

the

than

calculate the true rms value

output

less

is

invalid.

current pulse, Model DDA-1

and

the

calculate

peak

an

current.

anticipated rms value

following ways via

on

the

half a cycle, Model

of

the

than

half a cycle, a true

can

This multiple-current calculation feature is also useful

to

when

testing different styles

of

solid-state trip devices. This feature allows the test set to simulate a similar type current calculation that is being

used

by

the

state trip devices.

Digital

technology, Model DDA-1's system current is This provides high-accuracy timing instantaneous trip function addition, in

timer: Thanks to digital signal processing

knows

present

and

when

the

breaker

even

on

fast-acting breakers.

the

cycles

digital timer

or

seconds.

can

display

the

exactly

under

when

breaker

A completely digital, solid-state circuit starts automatically stops it will accommodate a variety

when

the

device

output

current starts to flow

under

test operates. This circuit

of

test conditions including:

output

current

test.

the

output

the

current

and

delivering a

panel:

output

measure

th~

of

various solid-

when

test opens.

testing the

In

trip time

the

timer

and

the

I 1

I i

Megger"

The

DDA

Series

offers

capacity

in a single,

compad

enclosure

easily

maneuvered.

.1.

When

testing a circuit breaker

or

a device

auxiliary contact to monitor (e.g., a single-pole circuit

the

breaker), flow

and

2.

When contacts, flow

and

3.

When contacts,

flow

and

Digital the

input

the

test set.

timer starts

stops

when

testing a device the

timer starts

stops

when

testing a device the

timer starts

stops

when

voltmeter:

voltage

It

to

also evaluate contact condition across

breaker

contacts while subject

when

the

output

and

monitoring normally closed

when

the

contacts

and

monitoring normally

when

the

contacts close.

Model DDA-l

the

test set

can

be

used

by

measuring the voltage

the

output

current is interrupted.

the

output

open.

the

output

can

be

used

or

the

output

as a diagnostic tool

to

high current.

Panel indicators: Panel lamps incorporated for safety

and

convenience, indicate:

1.

Output

2.

Thermal

3.

GROUND INTERLOCK

4.

OVER

External initiate circuit: Allows initiation from a

of

WARNING

RANGE

remote

the

set ENERGIZED

or

of

ammeter

location

SHUIDOWN

open

when

desired.

of

SPECIFICATIONS

Input

Because Model DDA-3000/-6000 is low-voltage circuit breakers, there are a designed frequencies. When system available. DDA-3000

Output

Output zero

the

accommodate For

to

contend

ordering, select

and

Circuit:

to

the

maximum

device

under

a variety

high

impedance

with

the

test set which best suits

The

standard input

DDA-6000 series are as follows:

The

output

current available through

test.

Two

of

load

devices,

used

all over

number

many

different input voltages

power

requirements for

of

the

test set is easily adjustable from

output

ranges are provided

circuit impedances.

the

output

can

be

high

relatively

that

can

which

current starts

to

measure

voltage from

operator

the test

the

world

of

test sets

the

power

the

impedance

to

connected

be

has

open

to

drop

set

to

and

in

to

test

the

Maximum

Continuous

Current

4500 4446

4446

DOA6000.

no

:ODA-.600:?

6250 6175 A

6175A

to

··;M~d~

PR);;-'3QOOS¢t!¢S1000 454

DDA~600(rs~i,~f

series (with the series at a The maximum current available from primarily The duration thermal conditions within Output output Megger stab CBS-2 eliminate the significant losses that connect used will

Duty

indicated for 30 minutes, followed

Maximum

produce

Instrumentation Digital

Operating

Memory Continuous

Digital

Ranges:

Overall

Continuous ±1% Peak Pulse RMS

Digital

Ranges

0.0001

Accuracy:

Digital Operating

Input Output voltage External voltage

of

Digital

Ranges: 0 to

Accuracy:

'.-

" .

,,~~

reduced

when

not

Cycle:

Pulse ±1.5%

voltage

.

for

..

~:2··I-W_E_IG,-H_T-+-

'~'''

..•. ',.,

Ib

.'.

-;

Connections:

available from

the

connect directly

the

Ammeter

Display:

Timer

Display:

to to

Voltmeter

Display:

1200 545 46 X 55 X 28 in. 117 X 140 X

.yo:.:.:':

,,:-,-,.

maximum current.

by

the impedance

of

the available current is determined primarily

adapter

board

use

with drawout style, metal-clad breakers. The stabs

breaker

under

testing molded-case

The

test

Output

Current:

following outputs

Mode

5-digit display

200/2000/20,000/200,000 A

Ammeter

of

reading

±2%

of

reading

of

reading

5-digit display

99999 seconds 99999 cycles

± 1 %

of

reading

Mode

5-digit display

600 V

±

1%

of

reading

DDA-3000

Universal

A A

kg

bar

provided)

the

To provide

the

test set,

to

set

will

System

Circuit

Output

Maximum

Through

Circuit

Breaker

35,000

2S,OOOA

60,000

50,000

____

H X W X D

46X46X28in.

to

of

the

load

test set.

maximum

each

and

stab

sets Model

occur

test to

the

breakers

the

stabs.

supply

by

Model DDA-3000/-6000 Series will

at

rated

with

0.281 in.

Accuracy

with

0.281 in.

with

0.281 in. (7

and

Breaker

Current

a

A

D_I_M_E_NTS_I_O_N_S

(in.)

double

the

test

circuit.

utilization

set

is

equipped

if leads are

test set. Cables must

or

other

the

rated continuous current

30 minutes off.

input

voltage:

DDA-6000

Test

Maximum Current

Through a Short

Circuit

60,000 A 48,000

48,000

100,000 A

SO,OOOA SO,OOOA

___

H X W X D

117X117X71em

the

output

voltage

set

is determined

of

the

with a

CBS-1

and

Model

used

to

be

devices which

C7

mm) numerals

C7

mm) numerals

mm)

numerals

Sets

A

--I

(em)

71

em

by

Megger"

DDA-3000

and

DDA-6000

Universal Circuit Breaker

Test

Sets

OPTIONAL

Protective

A

tough nylon other It conforms to

and

oil exposure

to

(-40 with

fungal

Input

If

the

or

if

use

of

input

ACCESSORIES

Cover

cover

made

of

is available for protecting the test

particulate matter during storage.

Mil-C-43006D

hydrocarbon resistance.

to

temperatures ranging from -40

+820

C),

and

Autotransformer

nominal input voltage for the test set is

at

different locations requires the

voltages,

heavyweight, reinforced, vinyl-coated

and

the fire-retardant material is treated

ultraviolet ray inhibitors.

an

autotransformer may

ORDERING

Item

(Qty)

Model

DDA-3000 DDA-3000

Model

DDA-3001 DDA-3001

Model

DDA-3002 DDA-3002

Model

DDA-6000 DDA-6000

Model

DDA-6001 DDA-6001

Model

DDA-6002 DDA-6002

Included Accessories

Standard stab sets

Leads

Timer

leads, 12

Input

leads,

Fuses

Fuse

500

Fuse

250 Stab series Instruction manual [1]

Optional Input

autotransformer Leads included Interconnect Jumper Protective cover Model

15-ft

V,

6 A [2]

V,

1.5 A [5]

bar

Accessories

leads,

lead [1]

CBS-3

stabs

ft

(3.7 m) [2] 2997

(4.5-m), 4/0 cable [2] 17163

[1]

with

input

autotransformer

10-ft

(3-m), 4/0 cable [2]

set

from oil,

dust

passes Mil-C-20696B test for

It

will withstand continuous

to

+ 1800 F

not

available,

use

of

a variety

be

used.

INFORMATION

Cat.

CBS-1

and

AT-1,

Contact Technical

or

No.

CBS-2

9377

950

5532

17176

AT-4

17164 17527

PC-1

Sales

The multitapped autotransformer is switch, appropriate sockets, plugs, interconnect cables.

It

is

housed

in a rugged sheet-metal enclosure with casters

and

handles.

All

voltages are single-phase with a tolerance

of

240 volts maximum output and

::.+'~fl;~.!.;'"

PQ~~3,~9(t~~fjeS.1000

D().I(6aOQS~ri~S

and

below

are

of

the test set.

output voltages, contact Megger.

7.,EIG::

454

1200 545

equipped

not

recommended

For

H X W X

46 X 46 X 28 46

X 55 X 28

with a

power

on/off

and

tap selector

of

±5%.

Input taps

for obtaining

other

combinations

:~:~NS~O:~

in.

117 X 117 X

in.

117 X 140 X

of

X D

(em)

71 71

input

em em

UK Archcliffe CT17

9EN T (0) 1 F

(0) 1 304

304

Road, England

502101 207342

Dover

UNITED 4271 Dallas, T 1

800

T 1

214

F 1

214

STATES

Bronze

TX

723 333 331

Way

75237-1019

2861 3201 7399

U5A

OTHER

TECHNICAL SALES OFFICES Norristown Mumbai

Sydney Madrid

The

INDIA,

AUSTRALIA,

5PAIN

Kingdom

U5A,

and

of

Paris

BAHRAIN.

Toronto

FRANCE,

CANADA,

ISO STATEMENT

Registered

to

ISO

9001:1994 Reg no. Q 09250

Registered

to

ISO

14001

Reg

no.

DDA3000_6000_DS_en_ V11 www.megger.com Megger

is a registered

trademark

EMS

61597

B.

SPECIFICATIONS

DDA-3000/3001/3002 and 6000/6001/6002 Specifications

Input

Input Input Input

Voltage

Frequency Current

(Single-

phase)

Output

460V±5% 380V±5% 415V±5% 460V±5% 380V±5% 415V±5%

Maximum Maximum Current

Continuous Through a

60 Hz 50 Hz 200 A 50 Hz 60 Hz

50 Hz 50

Current

4500 A

Hz

200A

200 A 350 A

350A 350 A

Output Current

Circuit Breaker

35,000 A

Maximum Current

Through a

Short

Circuit

60,000 A

I'

\

f

~

!

I

4446 A 4446 A

28,000 A 28,000 A

6250 A 60,000 A 6175A

6175A

50,000 A 50,000 A

2

48,000 A 48,000 A

100,000 A

80,000 A 80,000 A

Instrumentation

Digital

Ammeter Operating Mode

Memory Continuous

Digital Display

5 - digit display with 0.281

Ranges

200/2,000/20,000/200,000

Accuracy

Continuous - ± 1 % Pulse (Peak) - ± 1.5%

Pulse (RMS) - ± 2%

Digital Timer

Digital Display

5 - digit display with 0.281

Ranges

0.0001 to 99999 s

0.0001 to 99999 cycles

Accuracy

± 1 %

in

(7

mm) numerals

A

of

Reading

of

Reading

of

Reading

in

(7

mm) numerals

of

Reading for times that are 2 cycles and longer

Digital Voltmeter

Operating Mode

Input Voltage Output Voltage External Voltage

Digital Display

5 - digit display with 0.281

Ranges

600 V

Accuracy

± 1 %

of

Reading

Dimensions and Weight

ModelNo.

Weight Dimensions

Ib kg H x W x D (in.)

DDA-3000 1000 DDA-6000

1200

454 46 x 46 x 28 in. 545

---

-

in

(7 mm) numerals

46 x 55 x 28 in.

--~

-

xWx

H

117 x 117 x

------

-

117 x

D (em.)

140 x

71 71

cm. cm.

3

SECTION II

1.

DESCRIPTION

A.

GENERAL DESCRIPTION

of

CONTROLS and INSTRUMENTATION

AVO International

Circuit Breaker Test Sets are portable high current units designed

for testing and adjusting low voltage circuit breakers and other current actuated

ac

devices. The units incorporate a variable high current

in

Digital Signal Processing (DSP) technology

well as measure the reactions

as

of

the breaker under test. The units are self

to

control the circuit breaker test sets

output, and uses the latest

protected against overloads and short circuits.

B.

CONTROLS AND INSTRUMENTATION

1) OUTPUT CONTROLS:

a) OUTPUT SELECTOR

Switch:

Adjustment the combination Switch

This is a multi-position switch which provides coarse adjustment

of

the output is accomplished by

of

the OUTPUT SELECTOR

and VERNIER CONTROL.

of

the output. Position 1 provides minimum output. The last position provides maximum output. The SELECTOR Switch

is interlocked with the

OUTPUT

output initiating circuit. Depressing the switch

to change positions operates the interlock and

de-energizes the output.

I .

I

b)

VERNIER

(Power

2. Circuit Breaker:

3.

FUSE:

4. AUX.

OUTLET

CONTROL Provides fine adjustment

Stat): between steps

of

the OUTPUT SELECTOR

Switch.

Functions Switch

as

the input

and also provides short-circuit and

overload protection.

Protects control and isolation transformers

A ground fault protected

for

provided

convenient connection

accessory equipment.

of

the output

POWER

ON/OFF

120-volt outlet is

of

4

5.

Input Receptacles

6.

Equipment Ground

7.

Isolation Ground

Receptacles for input power connection

Test set chassis ground. For safety purposes, this should be connected to a power system ground.

is

part

of

an

This ground connection circuit that verifies that the test set chassis

interlock

is

connected to a separate earth ground.

5

4. DDA CONTROL PANEL

o

TEST

1.

START

Button

- Energizes the output

i

I

2.

STOP

3.

EXT. START

(blue) to provide remote initiation

TEST FUNCTION

4. TIMER STOP MODE - Three modes and timer operation.

C.A. (Current Actuate) - When the device those involved position, the timer will run from the initiation interrupted. This position is the position most commonly used for controlling timer operations (Default setting). The output will de-energize when the current level drops below 8%

N.O. (Normally Open) - When it is desired to control the timer from a set open contacts (such as an auxiliary contact) this type this position, the timer will run from the initiation contacts connected to the

Button

- De-energizes the output.

Terminals

in

the passing

of

range.

- An external switch can be plugged into these terminals of

the test set.

of

test current, this type

TIMER STOP (Yellow) terminals.

operation are available to control the output

to

be tested has no contacts other than

of

operation is used. In this

of

the test until the test circuit is

of

operation may be used.

of

the test until the opening

normally

In

of

the

I

, !

N.C. (Normally Closed) - When it is desired to control the timer from a set normally closed contacts (such as a multi-pole circuit breaker), this type may be used. opening

5.

TIMER STOP

contacts on the device under test to monitor contact opening and closure. The timer

of

In this position, the

the contact connected to the TIMER STOP (Yellow) terminals.

Terminals

of

operation

tim~r

- These terminals (yellow) facilitate connection to a set

will

6

run

from the initiation

of

the test until the

of

stops and output is de-energized when the device operates (used with the

6.

TIME UNITS Selection- Selects the mode

7.

OUTPUT Mode - The following two selections are available

TIMER STOP MODES

PULSE - When selected, the output period (default is 5 cycles) and then

of

N.O. and N.C).

of

the test set is on for a short, specified time

is

turned off. (Should the device under test

count; either cycles

in

conjunction

or

seconds.

operate after pushing the START Button, the output will be de-energized). This position is

normally used when setting the test current prior to the timing test and providing short high current pulses for instantaneous tests. However, the duration this output pulse can be programmed via the Display Menu. (See the Section III, Front Panel Display and Programming Menus.) (Default Setting).

MAl NT. - When selected, and the START Button is pressed, the control circuit

of

maintains the output

the test set until the device under test operates or the STOP

Button is pressed. This is the normal position for Time Delay tests.

VOLTS (voltmeter selection) Switches

of

E.

8.

VOLTS - three different selections are available for display

IN

- When this voltage display selection is made, the voltage at the input plugs

test set will be displayed (Default Setting). OUT - When this voltage display selection is made, the voltage at the output

of

terminals

the test set will be displayed.

EXT. - When this voltage display selection is made, the voltage applied to the EXT. VOLTS terminals will be displayed.

9.

EXT. VOLTS terminals - These two terminals enable the digital voltmeter to

measure external a.c. voltages up to

AMMETER

10. AMMETER RANGE Switches - Selects the desired full scale range

600 Volts.

of

the meter.

NOTE: The output current level from the test set must be at least 8 percent any full scale value before the ammeter will indicate an output reading. Please be

aware that changing ammeter ranges while the output is energized may in erroneous ammeter readings. The 4 range selections are

0.2kA1

2kA1

and 200 kA range. Default Setting is the 200 kA range.

of

the

result

20kA I

of

11.AMMETER MODE

MEM/CONT - Selects the mode highest measured current is indicated on the ammeter.

of

the ammeter circuit. In the MEM position, the

The

CONT mode permits

7

the ammeter to continually indicate the value and MAl NT. Modes

current value will be displayed. Default

of

operation, it will require 30 cycles

Setting is MEM.

of

output current. When

of

output current before a

in

the CONT.

SERIPAR switch must be in the amount

When

operating the unit with the output in a series configuration, this

SERIES position in order for the ammeter to read the correct

of

output current. (See Section IV, 2, A for more details.) The default setting

is PARALLEL.

FRONT PANEL DISPLAY AND INDICATORS

12.

LCD Display Panel - This panel displays Output Amperage, Vac, and Time. It is

of

also used to program many other features

Front Panel Display and Programming Menus

III,

13.Front Panel Over

Range - Illuminates to indicate that output current has exceeded the

Indicators

the DDA control panel (See Section

for

more details).

AMMETER RANGE selected. Output Energized - Illuminates to indicate that the SCR has gated and the output is

energized. Interlock GND Open - A special ground interlock circuit is incorporated which verifies

of

that the test set chassis is connected to system ground before the output set can be energized.

If

not properly grounded, this indicator will illuminate and

the test

prevent the test set from energizing.

I"

[

I I

.,

Thermal Warning -

Indicates that the thermal status

of

the test set is approaching an

over temperature condition. Thermal Shutdown -

Indicates that the thermal status

of

the test set has reached an over temperature condition. The test set will not operate as long as there is an over temperature condition.

14.Softkeys - Used to set programmable functions indicated on the

LCD display panel:

8

SECTION III

1. FRONT PANEL DISPLAY AND PROGRAMMING MENUS

9

2.

Flow

Diagram

of

Display Menus

A. METERING DISPLAY

I

All

of

the programmable menu options may be accessed by pressing the soft key

in

underneath the word MENU

following

display will appear.

the metering display screen. When pressed, the

I •

; .

I ' :

I

MAIN MENU

B.

From the

adjustments to the

MAIN MENU the user may select programming menus to make

LCD display contrast, SCR controls,

or

Acquisition control (current calculation method). The user may also select to EXIT back out to the metering key

display screen. The desired option would be selected by pressing the soft

directly beneath that option.

10

C. LCD CONTRAST MENU

The LCD

CONTRAST MENU provides two options for optimizing a user's ability to view the display. Pressing the soft key directly beneath UP will cause the intensity of

the display to be increased. Pressing the soft key directly beneath DOWN will

of

cause the intensity

the display to be decreased. This menu also provides the

option to return to the previous menu by pressing the soft key directly beneath

D.

SCR CONTROL MENU

EXIT.

SCR CONTROL MENU provides the ability to enter into two different areas

The SCR adjustment. Pressing the soft key directly beneath PULSE DURATION will display a menu that will

of

output

key beneath

the test set will be energized during a momentary pulse. Pressing the soft

FIRING ANGLE will display a menu that will allow the user to program

the angle at which the output signal

E.

PULSE DURATION AND FIRING ANGLE MENUS

allow the user to program the number

of

the test set is initially energized.

11

of

cycles that the

of

The PULSE DURATION MENU allows the user to program the number that the output

number

of

beneath UP

of

the test set will be energized during a momentary pulse. The

cycles can be increased

or

DOWN. Pressing the soft key beneath EXIT will return the user to

or

decreased by pressing the soft keys directly

of

cycles

the previous menu. The default pulse duration setting is 5 cycles.

FIRING ANGLE MENU allows the user to program the initial firing angle at

The which the output signal

of

the test set is energized. This is important when dealing with asymmetrical waveforms. The more inductive the test specimen, the more asymmetrical the output output

of

the test set has become

the test set will be due to DC offset. Asymmetry

of

increased importance when performing

in

the

of

instantaneous trip tests on circuit breakers. By providing the ability to adjust the

firing angle

of

the test set, the user can minimize the effect

of

DC offset and therefore collect more accurate information with regard to the instantaneous characteristics information on how to determine

to adjust the firing angle if it is not. The default firing angle is

F.

ACQUISITION CONTROL MENU

of

the test specimen. See ACQUISITION CONTROL MENU for

if

the output

of

the test set is symmetrical and how

70

0

.

12

The Acquisition Control MENU allows the user to select between two different current measurement methods. By pressing the softkey

or

PEAK measured current on the metering display. PEAK measures the highest peak and multiplies it by a constant 0.707. This method

compared to the which is a true rms measurement. measurements will be approximately the same current measurements are not approximately the same a way as to bring the two measurements

RMS angle order

angle. The method beneath the desired method. Pressing the softkey beneath

to the previous menu. The

RMS, the user selects which calculation will be used in displaying

of

measurement should initially be

RMS measurement method (with all output setting being the same),

If

the output waveform is symmetrical, the two

value, adjust the firing angle

closer together.

measurement

that

will

to

minimize

will

bring

never

these

be

the same value, the

two

measurements

as

DC offset. See FIRING ANGLE MENU

of

current measurement is selected by pressing the soft key

default setting is PEAK.

directly beneath either

value.

close

If

these two

Although

goal

is

together

for

EXIT will return the user

the

to

find

as

adjustment

in

such

PEAK

the

and

firing

possible

of

firing

in

13

SECTION IV INPUT AND OUTPUT CIRCUITS

1. INPUT: A. INPUT VOLTAGE: The AVO International Circuit Breaker Test Sets are designed to

operate on a single phase voltage source.

the nominal rated voltage source

is

not

If available, or if use at various locations requires the capability to operate the test set from several different input voltages an optional input autotransformer may be used

in

(see Bulletin

Section I for description) .

. B. INPUT LEADS: The power source must have sufficient capacity to maintain RATED

input voltage at the

foot 2

10

input cables with connectors on one end. This

INPUT terminals

of

the test set. All units are supplied with

is

done in an effort to

15

provide a locking input connector, for safety purposes, along with input cables that

of

are appropriate for a minimal amount

of

input terminals satisfactorily at 95-105% input terminals will result

the test set. Although the test sets are designed to operate

of

rated voltage, any drop in voltage below RATED at the

in

a proportional decrease

voltage drop from the input source to the

in

the maximum available

output. NOTE: To achieve published output currents, the rated input voltage must be

maintained at the test set terminals during the test.

C.

GROUNDING: For safety, ground wires must be connected to the test set chassis

in order to energize the test set.

terminal located just

belowlhe

One ground lead must be connected to the ground

input plug to system ground. The size

of

the

conductor should be not less than 6 AWG. Due to the special ground interlock

circuit, a second lead must be connected from the green GND binding post to a separate, but compatible system ground. This will insure that a ground has been achieved and allow the test set to be energized.

D.

SAFETY PRECAUTIONS:

CAUTION

For

safety

of

the operator, it is absolutely essential that the test set be properly and

effectively grounded.

2. OUTPUT: SELECTION OF OUTPUT CONNECTIONS: Two output connections, parallel

A.

series, provide various voltage and current ratings to adapt AVO International Circuit

Breaker Test

Sets to a wide variety

of

test circuit impedances.

and

The test sets can be operated most effiCiently by utilizing the parallel connection, which provides the

HIGHEST CURRENT rating consistent with being able to obtain

the desired test current.

of

maximum use

the variable autotransformer range .. Even the smallest currents can be obtained from the parallel connection. The series connection should be used only when testing high impedance devices where the parallel connection does not

In

this way, finer adjustment can be obtained by making

14

have sufficient voltage to "push" the desired test current through the device. The operator should start with the only when necessary. To operate the test set require any changes be made by the operator. However the test set in series requires that a special adapter be placed on the output stab adapter boards to

complete the series connection.

parallel connection and move to the series connection

in

the parallel connection does not

See figures below.

I

PARALLEL

NOTE: When the output

used to connect the output

B.

OUTPUT CONNECTIONS: Both models DDA-3000/6000 Test Sets are equipped··

with an AVO International Stab Adapter Board and AVO International CBS-1 and

CBS-2 Stab Sets which accommodate direct engagement circuit breakers to the test set without the use available for breakers not accommodated by the

the factory for further details

When testing devices which cannot be connected directly to the stabs 3000/6000 Series Test Sets, it will be necessary to use test leads. When using high current test leads, it may be necessary to connect the output

(see Section IV, 2, A on PARALLEL AND SERIES OPERATION). information on the selection

choosing the proper test

I

of

the test set is

of

the test set to the test specimen.

or

refer to the specification section.

of

output leads will provide the

leads for his application.

I

in

a series configuration, cabling must

of

leads. Additionally, stabs are

CBS-1 and CBS-2 stabs. Contact

I

SERIES

of

user

-

many drawout type

of

the DDA-

of

the test set

The

following

with a guide for

in

be

series

Due to the

voltage drop from the inductive reactance

15

of

the test circuit, a significant

loss

of

current will result for each inch leads, the length and size current.

It is worthwhile to sacrifice cross section reducing length. Every inch increase even though the is

convenient

in

available test current. Heating is not a Significant problem

leads become hot. The use

for

constructing test leads. Paralleling

higher test currents. Each

bolted to the output terminals or stab board

then

of

leads chosen will determine the maximum available test

of

lead that can be eliminated provides a worthwhile

cable can be fitted with a compression lug on each end,

of

test lead. Therefore, when choosing test

of

test leads for the sake

of

4/0 welding

of

the test set and the breaker.

or

motion picture cable

sufficient cables provides

in

testing,

of

The two

bundled with tape

cables between the test set and the breaker should be twisted together or

or

cord to maintain the close proximity which minimizes inductive

reactance. It

is

sometimes necessary to use bus bar current. When using bus bar, the buses one another as

C.

DUTY RATINGS AND OVERLOAD CAPACITIES:

possible.

in

order to obtain the desired maximum

should be run parallel and kept as close to

AVO International equipment is rated on a continuous duty basis as described by

in

NEMA for test equipment

intermittent service; that is, 30 minutes ON followed by

30 minutes OFF. This means that, the equipment can supply rated output current

of

for a maximum period

follows. This is a satisfactory basis

primary injection testing

30 minutes ON provided a 30 minute cooling OFF period

of

rating for testing

of

relay and current transformers. When AVO International

of

circuit breakers and

equipment is being used for heat runs on cables, bussbars, terminations, etc., the 30 minute ON time may be exceeded. limited to 70 percent

of

the rated output current and may be continued

In

such cases the output current should be

for

an

indefinite time. In

addition to the continuous duty rating defined above, all units have considerable short-time overload capability. Duration considerations within the test set. The maximum current available is determined

essentially

by

the

impedance

series is as follows:

I

I '

r

! I

of

the overload is governed by thermal

of

the load. The duty cycles

16

of

the DDA-3000/6000

DUTY

CYCLES ON DDA-3000/6000 SERIES 60 HZ

CIRCUIT

(Current Rating Through Circuit Breaker)

BREAKER TEST SETS

DDA-3000

CURRENT

3,000 A

4,500 A

. 6,000 A

15,000 A 30,000 A

CURRENT

4,500 A

6,250 A 10,000 A 30,000 A 60,000 A

TIME ON

Continuous

30 min . 30 min. 15 min. 45 min.

2 min. 5 sec. 12 min.

DDA-6000

TIME ON

Continuous

30

min.

15 min.

2 min. 5 sec.

THERMAL SET POINTS*

TIME

60 min.

TIME

30 min.

45 min.

60 min. 12 min.

OFF

N/A

OFF

N/A

Normal: 72° to 80°F

Warning: 160 to 190°F

Shutdown:

191

to 240°F

*Temperature measured at output stabs adapter plates.

17

DUTY CYCLES ON DDA-3000/6000 SERIES 50 Hz

CIRCUIT BREAKER TEST SETS

(Current Rating Through Circuit Breaker)

DDA-3001/3002

. I

CURRENT

2,964 A

4,446 A

5,928 A 14,820 A 29,640 A

CURRENT

4,446 A

6,175 A

9,880 A 29,640 A 59,280 A

TIME ON

Continuous

30 min.

15 min.

2 min.

5 sec.

DDA-6001/6002

TIME ON

Continuous

30 min.

15

min~

2 min.

5 sec.

THERMAL SET POINTS*

Normal: 22.2 to 26.7°C

TIME OFF

N/A

30 min. 45

min. 60 min. 12 min.

TIME OFF

N/A

30 min. 45

min. 60 min.

12 min.

Warning: 71.1 to 87.8°C

Shutdown: 88.3 to 115.6°C

*Temperature measured at output stab adapter plates.

I

[

I

..

18

SECTION V

1. TEST PROCEDURES FOR TESTING OF MOTOR OVERLOAD RELAYS

Always refer to the manufacturer's literature applicable to the particular overload relay before testing. The test operator should be familiar with the operating characteristics the relay, the tolerances applicable to the operating characteristics and any means adjusting the relay.

of

The test usually performed on these devices is to verify the time delay characteristics

of

. the relay when subjected to an overload condition. One test point is usually suggested

establish whether the relay

to

for

current curve current rating of

magnetic overload relays.

is,

of

It

course, easiest to make the connections and perform the tests on the relays if

the relay. The suggested test current is three times (3x) the normal

of

thermal overload relays

they are removed from the starter. However, it

is

operating correctly and within the band

or

three times (3x) the pick-up current (setting)

is

not necessary to remove the relay

of

the time-

as long as the power circuit is de-energized and the test leads can be connected to the device. The high current as short as

possible and should be twisted to minimize losses caused by inductive

leads from the test set to the relay under test should be kept

reactance.

Run the test and note the time required for the

exceeds the manufacturer's recommended

relay may not be protecting the motor properly. result in unnecessary nuisance trips. operate over a wide band and precise

It should be remembered that these devices

results should not be sought. A tolerance

overload relay to trip.

value, or

If

if

the relay does not trip at all, the

th.e

relay operates too quickly, it may

If

the tripping time

of

.±

15% is usually acceptable for electromechanical devices.

If

a thermal overload relay is not operating properly, tripping too soon

or

too late, remove the heater element. Note its type, rating, etc., and compare with manufacturer's data application, substitute a new heater over-sized heater

for

operating characteristics

of

the same rating and retest.

of

the motor.

If

correct

If

for

the

either under- or

elements are being used, replace with the proper size heater and

retest.

If

a magnetic overload relay is not operating properly, refer to the relay manufacturer's literature for instructions on making adjustments operating operating point) delay feature

improperly, it also may be desirable to verify the pickup point (minimum

of

the relay. To perform this test, it is necessary to disengage the time

of

the overload relay. Refer to the manufacturer's literature for detailed

instructions.

19

of

the time delay.

If

the relay is

TESTING OF TIME DELAY:

-~

I

1. Connect the test set to a on the test set is

OFF.

suitable source

of

power. Be sure

that

the ON/OFF Switch

2. Make sure the motor circuit is de-energized.

3. Connect the output

tested. (See Section IV, 2, B - SELECTION

-4. Connect a set

circuit contacts

5.

Turn test set's ON/OFF Switch "ON". The Control Panel Display should illuminate.

6. Set up

of

controls before testing:

CONTROL

Circuit Breaker

OUTPUT SELECTOR Switch

of

the test set to the terminal

of

light leads from the terminals marked TIMER

of

the relay being tested.

of

the heater

OF

OUTPUT CONNECTION).

POSITION

ON

1

of

operating coil to

STOP

to the control

be

i

I-

,-

I·

VERNIER CONTROL

OUTPUT MODE

TIMER STOP MODE

Ammeter MODE

AMMETER RANGE

VOLTMETER

CIRCUIT Selection

Zero (counterclockwise)

PULSE

N.O.

or

N.C... Selection that

is most appropriate for the TIMER STOP

Contacts being used.

MEMORY. Also set to Parallel or Series depending on output configuration.

So that test current can be read

of

in the proper range

the

ammeter

As desired, depending on

voltage

to be measured

I

,

I

, 1

20

7.

Set the desired test current by rotation pressing the

START button per the following procedure.

of

the VERNIER CONTROL, and then

NOTE: Depending on the position

may be increased by either CONTROL current SELECTOR Switch

(refer to chart

is

7500 amperes, the proper procedure would be to start with the OUTPUT

in

toward "100". However,

clockwise or counter clockwise rotation

of

OUTPUT RANGES). For example,

position 1 and increase the VERNIER CONTROL from "0"

if

the impedance

of

the OUTPUT SELECTOR Switch, the current

of

the VERNIER

if

the desired test

of

the device is such that you cannot get 7500 amperes at "100" on the VERNIER CONTROL with the tap selector on position "1", switch the OUTPUT SELECTOR Switch to position number 2. On TAP position #2 the red CONTROL

scaling is used to increase the output current. Rotate the VERNIER

counterclockwise toward "red 1 00".

If

at full rotation

of

the VERNI

ER CONTROL, the desired current is not obtained, turn the OUTPUT SELECTOR Switch current is reached. only stay energized for programmed number PULSE DURATION amperage set. Continue the desired test current is not reached, connect the output

to the next higher position and repeat the procedure until the desired test

Since the PULSE OUTPUT MODE is selected, the output will

of

cycles (Default is 5 cycles. See

MENU). The ammeter display will hold the reading

until the desired current is achieved.

If

at the last position

of

the test set

of

in

the

series

(See SELECTION OF OUTPUT CONNECTION, Section IV, 2, A.). Switch the

Ammeter

PARALLEL/SERIES Switch to the SERIES position, return the OUTPUT SELECTOR Switch to position 1 and repeat the above procedure until the desired current is achieved.

8.

Select the MAINTAINED OUTPUT

MODE.

9. Select the CONTINUOUS AMMETER MODE.

10.

Wait several minutes to allow the overload relay to cool

or

the

plunger to settle

in

dash pot.

11.lnitiate current by pressing START button. The timer will stop and the output will automatically de-energize when the overload relay operates.

NOTE: Check the ammeter reading during the test

adjustments may be made with the OUTPUT

CONTROL while the test is

for

accuracy. Minor

in

progress.

12. Record the

results and compare them to the manufacturer's specifications.

the

21

2. TEST PROCEDURE

POWER CIRCUIT BREAKERS

FOR

TESTING OF MOLDED CASE AND

LOW

VOLTAGE

Always refer to the manufacturer's literature applicable to the particular circuit breaker before testing. The test operator should be familiar with the operating characteristics

the circuit breaker, the tolerances applicable to the operating characteristics and any

means for adjusting the circuit breakers.

of

Molded case breakers are usually tested for verification and the minimum operating point (pick-up point)

of

the time delay characteristics

the instantaneous element. Low

. voltage power circuit breakers with solid state or electro-mechanical trip devices are

of

usually tested for verification

the time delay characteristics short time delay elements and for the minimum operating point (pick-up point) instantaneous element. Each circuit breaker pole should be tested independently

of

the long time delay and

of

the

so

that all trip devices are tested.

One test point is usually sufficient to establish whether the long time delay or short time delay element is operating properly and within the band width characteristics. For molded case breakers the suggested test current element is three times (3x) the current rating

of

the breaker;

circuit breakers, suggested test current is three times (3x) the pick-up setting

of

its time-current

for

low

voltage power

of

the time delay

of

the long

time delay element and one and one half times (1.5x) the short time delay setting where

of

the type

trip characteristics is incorporated on the trip device.

On both molded case and low voltage power breakers, the instantaneous element is tested to verify the minimum current necessary to cause the breaker to consistently trip instantaneously.

When testing instantaneous trip elements, run the test below to find the minimum current required to trip the breaker instantaneously and compare to the setting. Remember the instantaneous elements have an operating tolerance 25%

of

setting, depending on the particular trip device. On molded case circuit

of

from

.±

10% to

breakers, it is suggested that the time delay elements be tested before any instantaneous tests are performed.

.±

Most modern low voltage power circuit breakers are breakers should be tested using with the appropriate stabs to directly connect the breaker to the test set. When testing molded case breakers

or the test set, the leads should be as short as possible and twisted to minimize losses. See section on Output Leads.

I

i .

!

I

~

I i

of

the "draw-out" type. These

AVO International Model DDA-3000/6000 equipped

any other breaker where leads are required to connect it to

22

.

TESTING OF TIME DELAY:

1. Connect the test set to a suitable source on the test set is

2. Make sure the line side circuit

disconnected.

OFF.

of

the breaker to be tested is de-energized or

Close the breaker to

3. Connect the test set output terminals to one pole

SELECTION OF OUTPUT CONNECTION

4.

If

the N.O. from the desired auxiliary contact.

5.

Turn test set ON/OFF circuit breaker ON. The Control Panel Display should

illuminate.

6. Set up

CONTROL

Circuit Breaker

or

N.C. TIMER STOP MODEs are to be used, connect a set

TIMER STOP terminals to another pole

of

controls before testing:

of

be

tested.

POSITION

ON

power. Be sure that the ON/OFF Switch

of

the breaker to be tested. (See

Section IV, 2, A.)

of

the breaker under test or the

of

light leads

OUTPUT SELECTOR Switch

VERNIER CONTROL

OUTPUT MODE

TIMER STOP MODE

Ammeter MODE

AMMETER RANGE

VOLTMETER

Selection

CIRCUIT

1

Zero (counterclockwise)

PULSE

If

desired, the N.O. be used to control timer operation. Otherwise use the selection.

MEMORY and PARALLEL.

Select a range such that the test current can be read as near

As desired, depending on voltage to be

measured

or

N.C. selections may

C.A. (Current Actuate)

full scale as possible.

7. Verify proper ammeter range. Set the desired test current by rotation

8.

pressing the

START button per the following procedure.

of

the VERNIER CONTROL, and then

23

NOTE: Depending on the position current may be increased by either VERNIER CONTROL (refer to chart desired test current is

OUTPUT SELECTOR Switch

the CONTROL

from "0" toward "100". However,

that you cannot get

Selector on position #1, switch the OUTPUT SELECTOR Switch to position

TAP

2.

number Rotate the

On TAP Position #2 the

VERNIER CONTROL counterclockwise toward "0". If at full rotation

7500 amperes, the proper procedure would be to start with

in

7500 amperes at "100" on the VERNIER CONTROL with the

the VERNIER CONTROL, the desired current SELECTOR Switch desired test current is reached. output will

only stay energized for programmed number

to the next higher position and repeat the procedure until the

Since the PULSE OUTPUT MODE

of

the OUTPUT SELECTOR Switch, the

clockwise or counter clockwise rotation

of

OUTPUT RANGES). For example, if the

position 1 and increase the VERNIER

if

red

scale

the impedance

is

used to increase the output current.

is

not obtained, turn the OUTPUT

of

the device is such

is

selected, the

cycles (Default

is

of

5

the

of

cycles. See PULSE DURATION MENU). The ammeter display will hold the reading of

the amperage set. connect the output CONNECTION, Section IV,

If

at the last position the desired test current

of

the test set

in

series (See SELECTION OF OUTPUT

2,

A). Switch the Ammeter PARALLEL/SERIES Switch

is

not reached,

to the SERIES position; return the OUTPUT SELECTOR Switch to position 1 and repeat the above procedure

until the desired current is achieved.

9.

Select the MAINTAINED OUTPUT

MODE.

10.Select the CONTINUOUS AMMETER MODE.

11.1nitiate unit by pressing START button. The timer will stop and output will automatically de-energize when the circuit breaker operates.

NOTE: Check the ammeter reading during the test for any change in output setting. Minor adjustments may be made with the output

control while the test is in

progress.

12.Record the

results and compare them to the manufacture's specifications.

I

I '

24

TESTING OF INSTANTANEOUS PICK-UP:

1.

Connect the test set to a suitable source

on

the test set is OFF.

2.

Make sure the line side circuit

disconnected.

3.

Connect the output

Close the breaker to

of

the test set to one pole

of

the breaker to be tested is de-energized or

be

of

power. Be sure that the ON/OFF Switch

tested.

of

the breaker to be tested (see

SELECTION OF OUTPUT CONNECTION, Section IV, 2, B).

4.

Connect a set

pole

of

the breaker being tested. .

of

light leads from the binding post marked TIMER STOP to another

NOTE:

Not applicable when testing single-pole breakers using the C.A. TIMER

STOP MODE.

5.

Turn test set circuit breaker ON. The front panel display should illuminate.

NOTE: To set up controls, see "SETUP OF CONTROLS" before testing

previous section.

6.

Select the proper ammeter range so that the instantaneous pick-up current

of

instantaneous element can be read as near to full scale as possible.

7.

Place the ammeter mode switch

in

the MEMORY. (See Section

111,2,

E to program

pulse duration.)

8.

Rotate VERNIER CONTROL while alternately pressing the START button until the

of

circuit breaker under test trips instantaneously. Read ammeter for value

current

required to trip breaker.

If

breaker does not trip instantaneously with VERNIER CONTROL fully rotated, turn OUTPUT SELECTOR Switch to next higher position and repeat procedure (refer to procedure

NOTE under TESTING OF TIME DELAY

in

the previous section).

in

the

If

at the last position the required test current still is not reached, connect the test set's output in series. 2,

B). Switch the AMMETER MODE selection from PARALLEL to SERIES position

and repeat the procedure.

(See SELECTION OF OUTPUT CONNECTION, Section IV,

25

3. MAINTENANCE OF PROTECTIVE APPARATUS MAINTENANCE OF MOTOR

OVERLOAD

APPLICATION:

RELAYS

The primary function

too long a period

of

the motor overload relay is to prevent operation

of

time to prevent damage to that motor when an overload condition

of

a motor for exists. In

general, motor starters are applicable to a given horsepower range

. voltage and current requirements

of

the application will "size" the starter under NEMA

of

motors. The

requirements, but the actual starting current, running current, ambient temperature and

of

severity

atmospheric conditions will determine the overload relay rating required to

protect the motor without nuisance tripping.

of

Selection to tables

the properly rated overload relay heater or coil can be made by reference

or

charts supplied by the manufacturer

of

the overload relays. Whenever a

motor trips out it is poor practice to indiscriminately install a larger heater or coil, since

or

the motor may actually be working under an overload condition

or

may be operating improperly. Installing a larger heater

coil could allow an

overloaded motor to continue to run, resulting in deterioration

of

and reduction of

the trip before changing the rating

characteristics

motor life. Therefore, careful analysis should be made as to the cause

of

the overload relay heater. Operating

of

the motor overload relay should be verified at regular intervals. The

inspection and test interval can vary widely depending on the type

of

the importance

the motor to process or production, and environmental conditions.

the overload relay

of

the motor insulation

of

service involved,

I:·

I .

)

I

TYPES:

Motor overload relays incorporate an element which actuates a set

connected to the motor control circuit. These contacts open the circuit coil

in

the motor starter and interrupt the power to the motor.

In

general, there are three types

1.

Thermal - melting alloy or solder pot

2.

Thermal - bimetallic strip

3.

Electromagnetic

In

thermal type relays, time-current characteristics are obtained by the thermal

of

the

properties plunger

or

moving iron device is used to produce time delays.

melting alloy

of

motor overload relays in use:

or

bimetallic strip. In the magnetic type, a damped

of

contacts

of

the holding

1. Thermal - melting alloy or solder pot:

In this type, tripping is the result passing through a "heater" brass shaft which is surrounded by solder. Fixed to one end

of

heat generated by the motor overload current

in

the overload relay. This overload relay consists

of

the shaft is a small

of

a

ratchet wheel. As long as the solder is solid, this assembly is immobile. When the

i.

motor control circuit contacts are closed, a spring in the motor overload relay is held

26

compressed by the immobility motor increases the current through the heater, thus melting the solder ratchet wheel to move, and releasing the energy

of

circuit

the holding coil

in

of

the ratchet wheel. An overload condition

in

the spring. This interrupts the

the motor starter and shuts down the motor.

in

the

allowing the

The starter may be reset only after the heater has cooled sufficiently to permit the

solder to solidify and again make the ratchet and shaft immobile. Reset is usually accomplished by an external pushbutton on the face

overload relays offer a selection

of

either manual

of

the starter. Many motor

or

automatic reset.

·2. Thermal -

This type uses a bimetallic strip---two pieces An increase in heat will cause movement set

of

Bimetallic

strip:

of

dissimilar metal bonded together.

of

the bimetallic unit and eventually open a

contacts in the motor control, thus opening the holding coil circuit and shutting

down the motor. The principle

of

operation is the same as the melting alloy type. When the bimetallic element has cooled sufficiently, the motor control circuit may be reset either manually

3.

Electromagnetic:

In this type

or

automatically.

of

motor overload relay, a damped plunger

or

moving iron device is used to produce the delays required and initiate the trip signal to the interrupting device. In the most common type

of

magnetic relay, movement

of

an armature

or

piston rod

is delayed by a dashpot. When the electromagnetic field produced by the operating coil is strong enough, the

piston in the dashpot moves through the oil to trigger the opening

of

the relay contacts, shutting down the motor. Usually, magnetic overload relays with oil dash pots have facilities which permit adjusting their minimum operating current (pick-up point) and their time delay characteristics.

PLANNED MAINTENANCE PROGRAM:

A scheduled program "good housekeeping"

for in

connections, and electrical testing. A brief outline is given below:

1.

CLEAN - All types

of continued, reliable operation. the plant to prevent parts prevent the proper dissipation thermal type overload relays.

2.

TIGHTEN CONNECTIONS - This is particularly important

Loose electrical connections can cause extra heat which may result

of

operation

the relay.

maintenance

conjunction with visual inspections, tightening

of

motor overload relays consists primarily

of

electrical

of

motor overload relays should be cleaned periodically to ensure

It is possible for dirt

of

the relay from moving. Also, these same conditions can

of

normal heat, resulting in unnecessary operation

or

dust created by conditions

in

thermal overload relays.

in

a nuisance

in

of

27

3. INSPECT HEATER SIZE - Determine that the specified heater is used in thermal overload relays. Too often, oversized heaters are arbitrarily

unexplained trips.

time, becoming smaller

relay is provided by a

Actually, the original heaters may have oxidized over a period

in

cross section. Then, the heat required to operate the

smaller amount

of

current than that intended

installed to eliminate

by

the original

of

design. This may make the relay trip prematurely and the heater appear undersized.

INSPECT SETTINGS (Where applicable) - Most magnetic overload relays have

4. adjustable settings for minimum operating current and time delay characteristics.

These should be adjusted to the specified settings. TEST - The motor overload relay should be subjected to a simulated overload and

5.

the tripping time measured. This time should be compared to the manufacturer's

of

specifications operating properly. A tolerance or

specifications are not available, it is suggested that the Heat Damage Curve of

the motor be used as a guide for maximum trip time at

the relay's time-current curves to make certain that the relay is

of

± 15% is usually acceptable.

300%

If

the

relay's curves

of

motor full load

current.

I

"I

I

28

4. MAINTENANCE OF MOLDED CASE CIRCUIT BREAKERS DESCRIPTION:

The molded case circuit breaker essentially consists element is a set

the breaker as a switch

and react to an overload

of

contacts and suitable mechanical linkage

in

an electric circuit. The other element is a device to sense

or

short circuit. Normally, the time delay overload device

of

two separate elements. One

for

manual operation

of

is

thermal and the instantaneous overload device, when supplied, is magnetic. Some

newer styles include solid-state trip elements and operate very similar to low voltage

power circuit breakers. The thermal element uses a

together. An overload causes an increase

bimetallic strip---two pieces

in

heat which will result in moving the

of

dissimilar material bonded

bimetallic unit due to the difference in heat expansion characteristics, releasing a latching spring which trips the circuit breaker.

A small percentage use

of

an electromagnet, whose operation is opposed by a fluid filled dash pot. The

of

molded case circuit breakers achieve their time delay through the

magnetic element operates with no intentional time delay to provide instantaneous protection against high magnitude faults.

In small molded case circuit breakers, the instantaneous element is not adjustable

In

is factory set and sealed.

larger molded case breakers, the instantaneous pickup of

as

the trip may be adjustable and is set with an adjustment screw. This type breaker may

be shipped from the factory with the instantaneous element set at maximum

if

the setting is not specified by the purchaser; therefore, it is necessary to check these adjustable instantaneous settings before putting the breaker

PLANNED

A scheduled program for maintenance

primarily

MAINTENANCE PROGRAM:

of

molded case circuit breakers consists

of

"good housekeeping" in conjunction with visual inspections, tightening

in

service.

of

connections and electrical testing. A brief outline is given below:

it

1.

CLEAN - All types

of

molded case circuit breakers should be externally cleaned periodically so that the heat produced in normal operation can be dissipated properly.

It is possible for dirt accumulate and prevent proper dissipation of

the breaker.

2. TIGHTEN CONNECTIONS - This is particularly important, because loose electrical connections will cause deterioration

or

to phase

3.

TEST - The molded case circuit breaker should be subjected to a simulated

phase to ground fault.

overload and the tripping time measured. This is important because after a period

of

inactivity, the overload device may become stiff determine this condition and eliminate the stiffness is to electrically operate the breaker on a periodic basis. Manually opening and closing the main contacts breaker does not move any

device. Testing may be as often as every 6 months

or

dust caused by normal plant conditions to

of

heat, resulting in a nuisance operation.

of

the breaker terminals and an eventual phase

or

inoperable.

of

the mechanical linkage associated with the overload

or

as long as every 3

29

The

only way to

or

4

of

the

years, depending upon conditions where the breaker is installed.

30

5. MAINTENANCE OF LOW VOLTAGE POWER CIRCUIT BREAKERS

APPLICATION:

The low voltage power circuit breaker has a wide application and protect circuits up to separate elements.

600 volts ac

One element is a set

for operating the breaker as a switch. The other element

or

250 volts dc. These devices have essentially two

of

contacts with suitable mechanical linkage

is

a device to sense and react

may

be used to

to an overload or short circuit condition. Low voltage power circuit breakers are

manufactured with either electro-mechanical or solid state trip devices.

1.

SOLID STATE TRIP ELEMENTS - This type

current to supply a signal to an electronic sensing element.

of

breaker uses a sample

When

of

the load

an overload or short circuit condition exists, the solid state sensing element sends a signal to a solenoid which releases the latching mechanism and trips the circuit breaker. This

of

type eliminates the magnetic coil and dashpot mechanism

the electro-mechanical

trip device.

2. ELECTRO-MECHANICAL voltage power circuit breakers are tripped by the movement

of

strikes the trip bar

the breaker. The trip bar operates a latch which releases

stored energy to rapidly open the breaker contacts. The armature

TRIP ELEMENTS - Series tripped, direct acting low

of

an armature which

of

the trip unit attracted to a pole piece through the magnetic field set up by current through a coil. The current through the coil is either the actual load current of

a current transformer. For time delay the armature is restrained mechanically.

Tripping time is a function

of

magnitude

of

current through the breaker.

or

the secondary output

is

Low Voltage

Power Circuit Breakers are available with three types

of

tripping

characteristics:

LONG TIME DELAY - The long time delay characteristic provides overload

1.

protection with typical time delays

of

approximately 10 -60 seconds at 300%

pickup.

2.

SHORT TIME DELAY - The short time delay characteristic provides protection for

or

short circuit coordination approximately

3.

INSTANTANEOUS - The instantaneous trip characteristic is used

fault conditions. It is used whenever a small delay is necessary for

or

selectivity with other protective devices. Typical delays are

6-30 cycles.

for

short circuit

fault protection and has no intentional time delay.

of

or

31

PLANNED MAINTENANCE PROGRAM:

A scheduled program for maintenance

of

primarily

"good housekeeping"

of

low voltage power circuit breakers consists

in

conjunction with visual inspection, tightening all

connections and non-pivotal joints, and electrical testing.

1. CLEAN AND TIGHTEN - Low voltage power circuit breakers should be periodically

cleaned, tightened and inspected. The manufacturer's instruction book for the breaker clearances

should be read thoroughly and their recommendations

should be followed closely.

for

lubricating and

2. TEST - The voltage power circuit breaker should be subjected to simulated overload

conditions to verify that the breaker tolerances. This is important because, after a period environmental conditions can render the breaker inoperable. Manually opening or closing the main contacts

of

the breaker does not "exercise" the overload trip

device.

is

operating within its specifications and

of

time, vibration and

32

6. SUGGESTED RECORD FORMS - INSPECTION

INSPECTION

Circuit No

Location Breaker Mfg. BreakerT'

Date Process Clearance Circuit De-eneroized Circuit Properly Breaker Removed

Primary Arc chutes Contacts

Clean Alioned

Pressure Mechanical Operation Proper Lubrication

Rackino Device

Rollers

Trio Mechanism Tightened. Bolted and Screwed Connections

Bar

Trip Trip Arm Electrical Tests Inspector Date

!P

5 E Std/lnst.

I~

T

!P

T I

I~

N

!p

G

5 Std/lnst.

I~

!P IH IA 15

T

IE

E 5 Inst.

IA

T

I~

IA I 5 IE

IB

R E 5

I~

U

IA

L

15

IE T 5 Inst.

Ic

Finoers

I~

Tagged

L.T.D

L.T.D Std/lnst.

L.T.D.

L

Curr Time Curr

D Time

Curro

LTD Curr

Time

5TD

Curr

Time

Inst.

Curro

LTD Curr

Time

S Curr

Time

Curro

Specified

-

AND

TEST

Trip Device Trip Device Type

Long Time Delay Range Short Time Delav R Instantaneous Ranoe

Mfg.

y

ange

-

33

SECTION VI

1. Trouble Shooting Note

If

the Control Panel Display is too dim to read when the test set is initially turned on,

perform the following:

A. Press the right hand menu softkeyonce.

B.

Press the left hand menu softkey until the display is appropriately illuminated.

C.

Press the right hand menu softkey (underneath the word exit) twice to return to the metering display.

2.SERVICE DATA

The test set utilizes straightforward circuits and components which require little or no

of

service except for routine cleaning, tightening

in

be serviced

a clean atmosphere away from energized electrical circuits. The

connections, etc. The test set should

following maintenance is recommended:

34

1.

Open the unit every six months and examine for:

a. b.

c.

2.

Remove dirt/dust with dry, compressed air.

3.

Remove moisture as much as possible by putting test set in a warm, dry environment.

4. As corrosion

dirt/dust moisture corrosion

may

take many forms, no specific recommendations can be made

for

removal.

5.

Check cable connections printed circuit boards

for

tightness.

solid connections (look

for

loose pin connections) and

REPAIR AUTHORIZATION

If

factory service is required

or

desired, contact the factory

for

return instructions.

its

A Repair Authorization & (RA) number will be assigned

at

the

when it arrives

If

desired, a letter with the number and instructions can

factory.

Provide the factory with model number, serial number, nature

for

proper handling

be

provided.

of

the problem or service

of

the unit

desired, return address, your name, and where you can be reached should the factory need to contact you.

A purchase order number, cost limit, billing, and return shipping instructions may also be provided

National Bureau available,

Class One: A certificate is provided verifying the traceability and calibration

if

desired.

if

desired,

of

Standards traceable calibration and certification

at

additional cost.

of

two types is

of

the

equipment.

Class

N:

That

which is required for nuclear power plants. A certificate

of

traceability and calibration along with "as found" and "as left" data are provided.

If an estimate is requested, provide the name and contact information

with approval/disapproval authority.

Pack the equipment appropriately to prevent damage during shipment. crate

or

container is used, the unit will be returned in it

Put the RA identification and

number

faster

on the address label

handling.

if

in suitable condition

of

the shipping container

35

for

of

the person

If

a reusable

proper

..

NOTE: Ship the equipment without instruction manuals

or

nonessential items such as

test leads, spare fuses, etc. These items are not needed to conduct repairs.

the equipment with Preparation

for

aI/ interconnect cables, etc. which make the unit operational.

Reshipment

Do ship

Save unit came common commercial carrier. For example, you may wish to reship your unit to International

Warranty

the

shipping

in

Statement

container

that

your

unit

came

in.

The shipping container your

is designed to withstand the normal bumps and shocks for

annual calibration certification.

of

shipping via

AVO

AVO International warrants to the original purchaser that the product is free from

defects

in

material and workmanship for a period

of

one (1) year from date

of

shipment.

This warranty is limited and shall not apply to equipment which has damage, or cause

of

defect, due to accident, negligence, unauthorized modifications, improper operation,

by

faulty installation

purchaser, or improper service

corporation not authorized by the

AVO International.

or

repair by any person, company or

AVO International will, at its' option, either repair or replace those parts and/or materials

for

that it deems to be defective. Any costs incurred by the purchaser

replacement

of

such parts and/or materials shall be the sole responsibility

the repair or

of

the original

purchaser. THE ABOVE

EXPRESSED NO

EVENT

WARRANTY

OR

IMPLIED ON THE PART OF THE

SHALL

THE AVO INTERNATIONAL BE LIABLE FOR THE

IS IN LIEU OF

ALL

OTHER WARRANTIES, EITHER

AVO

INTERNATIONAL, AND

IN

CONSEQUENTIAL DAMAGES DUE TO THE BREACH THEREOF.

36

REPLACEABLE

(60HZ) DDA-6000, CB8160

PARTS LIST

WI

DDA-60

REF PART NUMER

Ai

(LOWER ENCLOSURE) A1A1 9327 A1A2 6216

A1A3 6234 TEMPERATURE CAL A1A4 8106 VOLTMETER CAL ASY (LINE VOLTAGE) F1,F2 9377

F3 RV1 5263 S1 T1 T2

T3

T4

T5 T6 T7 T9 TH1 N/A TH2-6 5544

Xi

950 FUSE, 1.5A , 250

6878 SWITCH, OUTPUT TAP

10885

N/A N/A

N/A 634 TRANSF., 480:120 OUTPUT ENGR'DO MON.

5533

50876 TRANSF., VARIABLE, ASY

5323

5581

DESCRIPTION

SCR ASSEMBLY SENSOR CAL BOX (FACTORY CAL)

ASY

FUSE, 6.0A, FNQ/ATQ

V,

MDA

MOV, TRANSIENT PROTECTOR

TRANSF., CONTROL 480V TO 120V

TRANSF., 480:560, LINE VOLTAGE MONITOR

TRANSF., . OUTPUT ASY

THERMISTOR

TRANSDUCER, CURRENT MONITOR

QUANITY

1

1 2 1 1

1 1

1

5

2

A2

(UPPER ENCLOSURE)

A2A1 A2A2 A2A3 A2S1

!

I

15980 CONTROL

17291 SCR DRIVER! CONTROL ISOLATION BOARD 50032 INPUT BOX,

8049 EMERGENCY STOP SW. N.O.

AVO INTERNATIONAL

PNL, DDA, HIGH CURRENT 60HZ

DDA-30/60/3000/6000

1 1 1

1

title: REPLACEABLE PARTS LIST

DDA-6000,

CB8160 W/DDA-60

date: 7-18-97

dwg no.: DWG 50986 rev, 0

~--=e---...C'"·

------""

nlio-'

.TlIIi!-.

-<

"'<

-<

"'<

18

veva

iii8i

r- r-

~

~.

.kc:wZTOlt

ta~U

-<

) ...

lI

....

--<

sla!:

0-

,.

l.e

....

rr1

~111

~

~q

qili

... _ ...

_:.4'\:_"""'"

::.«

....

~_

t---+'--

~~.

oUtput

en.l'll

••

"

"""

.-

cps-so

~

SUI

I

,

..

.

a..ow

·tliov

I

-

..

-

po~~

~

...

~

Te~.

cP.-.

.

Jr';''''

,~,

'I'

1·

~

"I

~

1><

(PH

Bs?el

~I

g

___

I

,tIS

TH. no

~

--

mIl-

»~

I'J~

i..

____

t

L_&:.t.;

_

fI

fl

~r

«-

-r'''~

i.

~,P ! ~

~I

~

-j't-"'-

--.-----

& &

~aaJ]

~NC"

I

I.

a.

"

!!o~

t.

a~

IUKI

••

"I..

a

~

).!la-a

~

...

.....

...

~

...

Itll

• b C d • f

g1~lflkll

X X

~

2,

X X X

X

•

X X X

X.

X

X.

X

I

XI

.

X

6

~

X

i

X X X X

7: X

.X

.

IX.I

..

X X

>\

'.

X X X

X

.~

".7

i

J.I

~I ~I

&1,1

ml:1

t

r:!!:::.!fE,:

::;~::E3

:

t.

tJJltltl$ltltl

Ai

(LOWER

EN_C_L_O_S_U_R_E~

_

_____ . ____

.........

__

...... ____

~~~':"':'!~

~~!_

.. _ ...

__

.1_

...

___

...

________

............

__

..

1

__ -__

..."...".

~::.t,;;..r.,;::AI.':::no;:

~

__

__________

_

I

~

..

~

!.!.JI

•

'.~

,oM

1fC"~II~Z~c'lAC\IlTlI

.J3

..-.oj

'rh

A2 (UPPER ENCLOSURE) V

I I I I

" I I

,

-'~

ffi

F

I

H.

H4

H H H H

F'~~'I(I)

(f)

A2A1

CONTROL

PANEL.

NbT.

1.

n •

.a..&,a

THa

~at

_

oN

.OM:

tiOQG..

e

ll

l!II111!11

0

J11AAALU

I.

TIC

OIN'"

OP'lCTEO _

ot.CflllllU1

HtMON

....

oat

....

MItlPhtl.-t.uw

PI.JOfoI

=-=

...

~~V:r~:r::::':=·~i

::::-

O:A:::~r~,,=

~r:~~n

WIC"

.xp\.rc:n

NIIK'

liS

OiIIANI.o

liN

liIRrTrNO.

~AT~~

T.!~::~

o~tal~:;=

~

T~H.OOA.-6d.

i

I

\1

i

~

its

I~

l~

;. ,

c.,

1----1

f-

~

..

'.M

--'-:.:-~

~~I

T2

IS

lid I ••

. I I I I I ,

,0-'(-

""""

TO",...

~

TS~"'

~

......

.

."'''Il

......

o

CPI-III

IT

...

11:

..

~

"-1"

r ~ ':

1

,';' ~ '

..

I

..

...

II

Ut~u

•

......

-'"'--

!,

·"h

l

•

......

ill~11I

T8

,.....,

.-

-<

til

~:=::

n

"~

~~[""'"

tffi

~I ~I

U t t t d r & & i !

__

m!

!

_3

_~~___

""

_ .. ,

::;"

r±r---n~n--------rm

ff4f

..

;~~_:

.'

[(t

____

::.t.::_::;.t.;:_

~

_It

L-

____

JJ[~[d~t~_1

__

~L_O..w_E_R

__

E_N_C_L_O_S_U_~E!_~

_______

_

f

!i

..

r.

......

.,..1

It_

.'1/

~

..

~

_ "

CONT_

:-.

CIArNnl

.,g

II II

';"""';'l

I.

II • '"

15 • .,

••

101

A2

(UPPER

ENCLOSURE)~

'-

a

IP1II

r

'J

q0

...........

.J.

..

.

II

•

II

'"

..

I I 1(,) "-1: IMI'Vf

,,::...,

1$

i d ;

fi

i I !

I

Ii

I P

!!:

II

~I I ~l..--

,

~

! I i

D9...,~

,.2"

stc.

&x9.

v2.

1

I

A2A1

CONTROL

PANEL

'](1) (I)

,...

DEYU'.

DU'10Tm

"NO

onDAlftO

tflllllllIN

_001

.. A "AD",IIn'.un'

oc.l.N

~·=:~l~=-:,,:,=:~~:FJa'z:'=~i::'!..~~::=a,.F·

I

,-

...

_.-

EN

I GATt:

8'

8 b c d •

f • "

, X

X X X

X X X X

• X

X X

4

X X

• X

X

7 X

X X

8 X X

9 X

~Tt!.UL

TI-AMP

___

..."

~"WA"

I),U.

.......

,.'IC

....

711n7

1A'GCAI't

CI.W

go.

o

I-

f-

f--

..

j.

"L

f,'

1"

if

..

i~T

\

!!:

~iir

~.'

i

.,

i ~ :,

.1

~

:!

'\

~

S

'-

~l

~~

..

D

./

i

111-14-1+1-1+1

j IU!-I-l-I--I-I-I-I

. i

...

XX)(XXXX

ox

iG

:XXx)(XXXXx

D x X x

ox

x

)(

x

• i

i:

i.

<D

~

~~

w iii

CI

::>

.,

(J)

o 0

-' -'

U U

Z Z

UJ UJ

CI

~

d 2

I

i

($I

_

~J

~

!

Iwv

WV

I I

:

~

I

I I

l-

:

I I

.

i

I·

I '

00.

.....

TB

r-·----,

If---

·

C"..

~I~

I

.-

~

r-

"""C'

~~

. .

..

-<

Jr

...

~'~

-----

...

~

........

I.~UNT

I

••

rs

,

...

s

T7

l

••

11

1 L -

TR.:':...J

.

-3>-:

· -

T2

..

{

~

...

~~ . ~

~-

1-;0-:

7

.

..

J.

...

·~·W

'~

· c

....

..•

If·

:

-5

I"'·""l'k.

IIII.,.U

'~-c

T1

: r""""l. • I

~

.~

ns-.

..

II~~J

TO

~Er--

J.

...

-rh

~ • ~

..

".;::

....

.'J

...

.

...

~14.a

~2-C

I

"""'".....

L..aJ

. ___

--

.}

.•

c-dJ

[p,

-.1'

:

"

...

~(= = ~

,~;,

a r-..

ii'

T

,~

i Y Y

..

...

••

,.....

...

S§

i~§·

55

iii:

~ii

nn

Hi

iii

.....

---

-- -

-~------2;~-

-

--------

-----

-

-~:

---: ~ ..

~

~~;~ ~ ~~

~.a-o

~J..-

_.

:

~ ~ ~ ~'~'~-l-l.<j.<j"1"'1'~

J.:

f--

~:F

·:I··~··

..

."].

...

r

I

.....................

••

...

I..

P-

I :

II II

..

~u.

~..

I..

I

s.

(PN

8B78)

• b

c "

• f

g " •

• k 1

1

X

X X X

X X

2

X X X X X X

3 X X X X X X

4 X X X

X X X

e x X X X X X

B

X X X

7 X X X X X X

B

X X X X X

X

9 X X X X X X

.,ciI ARM

....

I

..,

!

II

=

,,:::-O:.C;-~

.

,

.......

7

••

":1:

~

"-"-

.:

••

:-"

.....

".'":'::-:

C:",,:"

••• : L

____

1111

it

j

Ii

tU

l~

__

A:

__

~L_O_W_E_R_..e_N_C_L_O_S_U_R_E!_t

___________________

!'!'!.

..

.?~~

-----------------------------

1 . J

A2

(UPPER

ENCLOSURE)

~

.

;-

~

~e--

.

• •

••

• •

II

S 'II • I • I (.) eN--

01'AJW..UL

t . d

Ii

J P

n n p

P:

~ ~

....

I!§";

i '

l!=£

---

;J~

I

I. I

I.

•

II

.. ..

.. 0

:111(1)

(f)

o 0

PT.

START

00

nCR

1IT0f'

o 0

IIIIT.VGI.'"

A2Ai

CONTROL

PANEL

THI

ocYlca

DP1CT&O

NolO

o.scAf..o

HIAIQM

DCHOIU A PACll"AnTAAY

DUI8N

OWNGI

,'1'

AVO

tM.TI·»P

CONI.

AU.

calION.

~ACTUAINO.

NPAODUCTlOH. s.u.E8

AHO

PAntfT

AtolfTW FlU4fIDfHCII

THI.

OIYICII:

Oft

DAAWlIHO

....

N8PIY£O.

IXCt!Pt

MHEI'IC

aJiIPI"Jon

AJSHT

J.

ORANT&O

:1:"

IfAlntII.

AVO

MULTI-AMP

(Itt..,

.....

101

COAPOA"TZ~a7'

ItRONU

WAY

EUoLUI

,DIOI'I'M»!

oupp

jU'M»,

un..

SCH.

ODA-6002

I

1·,-..

i

~l

1-"":

Ie

,

I

!

~

..

\!',

,"

.

.....

_

rn

r-·-

--,

~

.....

,

o-----O---c>--f

"1

r=r"

~TK'I

r-

r--

:":~

....

I:

I

~

I

--~--

~rn~'

To'--

...

o-----O---c>--f

~

...

1.{-4:SHUNT

I I

'"

S

~

"'"

.

T7

,...

....

~

iTAIP

Lor\..,o-

.0.(

1 -

l

__

-'

~

T2

'>

...

__

•

• -

~

__

T

..

AN

K

IiII

oa

Ka

~

no..

'tD

re"-;':'

~

~'.

-

J..

...

.

r;:j==l==ll::::::~==qAl,==:::tm~

.".

~

.~

C....

.

..

I

y

• :

o-

~

..

'~

r"

AiA4]

~

L!::f-1

,

....

" I

RO°·

...

H ;

r"'l

. I

.~

°

'--<:5-"'·-

....

~-H--'

II

~'

I

-=0-.:

RO:'

I i u:.,Te

HI

cP..

I,

-c

'. L

___

-' m

q~''''':::''''

...

I~:·

:

~

..

"M.J'

RO0' ...

~

TO

1W1f1

-.-.JSaJ

.

;qa:D

•.

~

r--:=..

Mol. ....

~

... 1 •

~

St

(PN

a.7.)

I"ACIMTII

fIr

"

~

0a![

r T;; 'i'

2!

1

:r"~

T8

! ! ! ! ,

'I'

r

!!

ao

8."

S8

RZ"

-<

1 :

be:

: f : h ! j

~

1

~&

&&~

iiii

~~

&~

~~~~

&ii&

~~

"',.. 2

XX

X X

---- - - - - ---- -

-.1t----------

-----

- - ---:

_4~

;~t~;~;~

R':'.

3 X X X X X X

~

-

Q;:D

:

oj

~ ~

~.~.~.~

.~

'"

.~

'1'~

.~

I..

r-':

X X X X

~ ~ ~ ~

I~¥

:

III

.,

~NSCI:

II

I

.tKJI~-

6 X X X X X X

: A''''

1HENW.

CAL

BOX

'11.

III

·r

h 7 X X X X X X

I

II

It

0 4

:I

.....!!oi·.,t:pa-4

• I m a x x x x x X

...

~"I

....

I

~

%

!t

! 2

~

Z : t

-9

.....

:::

!~

j

~

~.,

/

sa

......

7

sa

.'/:

,101'-'.

9)(

XXXXX

":

II

»

~.-

s,=:'::-:

c~.,..,

.::

L

____

,

fI

~~~~ t £~~

~~ _ ~_1

_ _

:L_O_W_E_R

__

E_N_C_L_O_S_U_R_E!

________________

_____

-:~~':.

....

~'=~

_DU~~

_____

_______________________

_

r-I-++--+++----

....

/ . J

A2

(UPPER

ENCLO~SURE)

V

~"

•.

".

_

,.,~,

va",

~~

..

_""

~

6

KAua

r.+.+-:

..

+-.:t--:.t-:.+--+-+-:t-:!--:t--:h

'15

s..

I (IJ 0

PAAAL

I..EI.

~.~

~

iH

Pi

HHHP

P:

~

.au

'~U0:l&

~;

i i

~

.... ' .....

'

~.

~

q S

I I ia • rl. •

.Ir+.

•••

--------J;

....

$.m.-------lrT"noiT"-i".in.

!mIl()

(t)

~£

~

T~

!top

CONTROL

F'ANEL

.2

v2.

!:::2..T~~L

TI-AMF'

tIu.,

us-nol

4J!7t MONZI:

WAY

OAL

... A ••

TI!XAII

7151tS7

O.

OJIITIl

THE

OPICC

~ICtta

AND

DaICI'IllIl!O tcEA!ON e:IeOOJl!II A

PfICI~IIIUAAV

DUIGN

OWJCO

(IV

AVO

MUl..T%-N4P

COI'IP.

A ...... OI!.IGH,

~ACTIJIIU'"

M~AOOUCTIOtf.

ULU

AND

~ATe:tn'

III...,..

RED"""J'"

ntJII

DEVICe:

011

DRAWING

ARIE

RKSKJWIIo.

IrXCCPT

WHERE

aXPt.IC%T

IIXQMT

III

~D

IN

IfIIIITINO.

i

I

i~

1--...:

I~

I

!

I

!

I

Iw

I

I"

I

I.

.t-

.'

"'

H

f-

'1

lIND

MClNJ1WI

~

....

-----1

;rf

111

~I

r

~Hl

~~&

____

~_::.tr.':_

~_::.to.:_

H--

.

AU.

I

IS

T2

@

I'll

I.,

o----.~-

t-

T8

"'

....

II

n,

~

_

..

~

...

1

~

0

~

....

Ii·

goo

T.5-1

VO j

·

..

W

TIIS-.

-<

lit

aSH

til

'0-

~

TS~

......

.4011

I:"

outlJUt.;:::UN

..

v .aov

r

r9

....

I

_

......

,.ACTOAY...,

_

-1+-+-'.'.

_II ~ ....

]

lIP'UIJO.uw.&.a.

""""'.

~

Ai

(LOWER

ENCLOSURE) t

A2 (UPPER ENCLOSURE)

~

r:::;::======:dS

e

......

I

,-

0,oAJU.LUf,.

~I

~III'IIII.I

i

ll

:

1

I~:i

=====Itttm±~

1(1)

o 0

IIXT.

aT.wn

o 0

TJICJII~

..9.

vS.

1

I

A2Ai

CONTROL

PANEL

T

....

KVlCl

_tctaO

AHO

D£M:IIIJ..o

MUCON

eJeOOJ

....

PfIIOPIItlIlTAA'I'

onz

..

DWtCD

....

AVO

.....

T!...,...~.

ALL

DaI:t

...

1lAtf.PAC'NA1HO. ,."AOClUCTlON.

lALla

..... 0 PATINT

IUQHtS

MGNIDlMCt

THIS

II&¥ICII:

DJI

Gf\AW1NGI

AM

NSIR't'EO,

IOCca

..

"

NHGII:

~:ro:n

MOHr

I.

tNV.HTm

IN

WftnSfG.

S,

a D c • a f

• n

1 X X X X

2 X X X X

3 X X X

X X X

5 X

X

6 X X

XI 7 X X X B

X X

X

9 X

X

~4T~L..

TI-AMP

1"'1,

SU4II01

~

IIfIONU

1f4T

DAI..I..lW, TmlAlI

7Bn7

._-

I-

I~

~

.~

~

,.

,

i

I'

Megger DDA-1, DDA-3000, DDA-6001, DDA-6002, DDA-3001 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual