Toshiba CV-10HA, CV-10HAL Instruction Manual

TOSHIBA 6F9G0133

INSTRUCTION

MANUAL

HIGH-VOLTAGE

VACUUM CONTACTORS

MOTOR&

TRANSFORMER

APPLICATION

TYPE:CV-10HA

12/15kV-400A-5/4kA

TYPE:CV-1

OHAL

12/15kV-

400A-

5/4kA

May, 2001 I

REV.

4 I

TOSHIBA CORPORATION

SOCIAL INFRASTRUCTURE SYSTEM

COMPANY

©TOSHIBA

Corporation

2001

All Rights Reserved.

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SHIBA

6F9G0133

CONTENTS

1.

GENERAL

DESCRIPTION····················

2

2.

PRECAUTIONS

IN

SPECIAL

APPLICATION·····

3

3.

RECEIVING

AND

UNPACKING················

4

4.

STORAGE

AND

HANDLING···················

4

5.

INSTALLATION···························

5

6.

RATING·································

6

7.

OUTLINE

DRAWING························

7

8.

STRUCTURE······························

8

9.

OPE

RAT I ON······························

9

10.

TRIAL

OPERATION······················

··13

11.

INSPECTION

AND

MAINTENANCE·············14

12.

CRITERIA

FOR

DURABILITY···············

·18

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Read this manual carefully to fully understand the operation.

And keep for maintenance.

WARNING:

Never remodel or disassemble the equipment nor mount

nonstandard components.

This equipment

shall only be used inside a metal enclosure (grounded)

in

other establishments than domestic , or those that are connected to

the

public power source system.

1.

GENERAL DESCRIPTION

( 1 ) Ambient condition

6F9G0133

The type CV vacuum contactor

is

manufactured

in

accordance with IEC 60470(2000).

The vacuum contactor should be used

in

the following conditions.

Table 1

Normal service condition

-Altitude

-Ambient

temperature

-

Relative humidity

Less than 1

OOOm

-S°C

min. to +40°C max.

Its average over a period

of

24h

does not exceed

+35°C

45% min. to 85% max.

-Vibbration

· 20Hz - 9.8m/s2 or less

CAUTION

:

Do

not use

in

condition other than those specified

above ,

please consult .

(2) Locative condition

The location where the contactor is to be

installed should be free from dust.
Corrosive gas and moisture.
When it

is

be

used

in

a chemical plant or

in

outdoor panels,
take necessary precautions against corrosion,
water seepage and condensation.
See page

2.

2

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6F9G0133

2. PRECAUTIONS IN SPECIAL APPLICATION (outdoor cubicle etc.)

In application, check the follow items, please carry out the maintenance

frequently.

or

perform the countermeasure.

(Visual inspection: once a month, regular inspection: once a year)

Table 2 Precaution in special application

Special

condition

Instance

Caution items

Contamination

Dust, iron-dust etc.

Reduction

of

ventilation

is very more place.

Setting

of

ventilation

for

Sea breeze Place where suffer the sea breeze.

sea breeze.

Frequent inspection.

High humidity

Place where very more Setting the space heater.
snow

and ice. Setting the ventilation.

More humidity. Prevention

of

flooding

Place

where near the into the cable pit.
cooling tower.
Place where cause changing

the temperature

suddenly.

Corrosion gas

Corrosion gas which come Protection from corrosion
into the airport,

chemical

gas.

Industry and water cleaning.

Anti-gas treatment.

(EX.)

Examination

of

changing

S02 , Cl2

, N02

of

the insulation material.

3

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3.

RECEIVING AND UNPACKING

WARNING:

If any parts are damaged or missing.

Do

not install that has been damaged.

Make the

following checks after unpacking :

(1) Check if there is any

damage,

foreign matter trapped , or water seepage

into the contactor.

(2)

Check the nameplate to see

if

the specifications on the plate are correct.

(3)

Check the contact wear gauge and control cable.

(4) Check the tripping rod (Latched type).

4.

STORAGE AND HANDLING

When the contactor

is

to be stored over a long period , the storage area

should

be

dry and dust free area.

If the contactor

is

left outdoors or

in

adverse conditions , corrosion

from gas , rust or

insulation deterioration may result.

CAUTION

:

In

handling , do not throw or drop contactor.

The contactor may break.

4 -

6F9G0133

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5. INSTALLATION

When installing , protect from dust. Particularly when the contactor
is

installed while the building

is

under construction , shield it from

cement dust and other foreign matter.

The

following precautions should be taken.

(1) The mounting surface must

be

horizontal (level : less than + 1 mm).

When the mounting surface

is

not horizontal , adjust with spacers.

(2) There are four mounting holes.

Use M10 bolts to securely mount the contactor.

(3)

In

wiring the main circuit terminals , ground terminals and control

circuit , wires should be given sufficient length to

be

flexible.

The ground wires should be more than 5.5mm

2

in

cross section.

( 4)

Do

not mount the contactor with its front inclined downward.

This may result

in

malfunction.

(5) Do not touch the vacuum interrupter surface with soiled hands.

(6) When it

is

applied to a capacitor load , be sure to used a space heater

to keep humidity low.

CAUTION : Do not install on energize contactor that has been bad condition.

5 -

6F9G0133

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6F9G0133

6.

RATING

DANGER:

Do not exceed the ratings specified on the contactor.

Table 3 Ratings

Type-

form

CV-10HA

CV-10HAL

Operating mechanism

Non-latched

Latched

Rated operation

voltage

(kV)

12/15

Rated

insulation level

(kV)

AC.28 ,

Imp. 75

Rated

operational current

(A)

400

Thermal current

(A)

450

Rated frequency

(Hz)

50/60

Rated short-time withstand current

(A-s)

5000-1

Rated peak withstand current

(A)

12500

Rated duties

Operations/hour

300

120

On load factor

40%

Rated making capacity

(kA)

4(C-10sX

100times)

Rated breaking capacity

(kA)

3.2(

CO-

30s x 25times)

Short-circuit

making

and

breaking current 5/4

(kA)

Duties

0-3min-C0-3min-CO

Withstand overload current

(kA-s)

8.0-1

sec ,

2.4-

30sec

Mechanical operation

(million)

0.25

Electrical operation

(million)

0.1

Rated supply voltage

Closing voltage

100-240VAC

100-240VAC

(Standard)

100-220VDC

100-250VDC

Tripping voltage

-

100-110VDC

Auxiliary switches Contact arranoement

4N0-2NC

2N0-1NC

Life

(million)

0.1

Operating current (A) Closing

6--

7

(at

100V)

Holdina/Triooina

0.6--0.7

3--4

6

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......

Ir>

co

11'>1 -

c:-

500

OPENING
FOR
MANUAL
TRIP

(LATCHED

TYPE)

RECOMMEND
PARTITION
DISTANCE

24

~

0 0

146

1 9 3

526

';>I

le=

235

TYPE

CV-

1 0

HA ( L)

(HORIZONTAL

MAIN

TERMINALS)

Fig.1

OUTLINE

DRAWING(mm)

I E 1 6

:+

I

i~

63

5 t I

~ ~

1"

I I I

MAIN

'1

1'

'1

TERMINALS
DIA. l 3-6HOLES

l l i

~

......

0

c

-i

r

z

m

I~

~

z

G)

I

-I
D

en

:c

-

m

J:ll

en

'Tl

co

C)

0

...a.

w

w

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co

MAIN
TERMINALS

VACUUM
INTERRUPTERS

ARMATURE

INSULATION

BARRIER

ATCH

MECHANISM

(LATCH

TYPE)

FRONT(WITHOUT

COVER)

Fig. 2 STRUCTURE

OF

CV-10

[r::::J]

CONTROL

CONNECTOR

METAL

COVER

FRONT

INDICATOR
COUNTER

(OPTION)

OPENING

FOR

MANUAL

TRIP

CX>

en

-I

::0

c

(')

-I

c

::0

m

-I

0

en

::c

-

Ill

,..

O>

,,

co

C)

c

~

w

w

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9.

OPERATION

The drive unit for the electromagnet is installed

in

the bottom frame.

Molded and wired

on

the printed circuit.

The

closing circuit can be operated using either

in

AC or DC by the drive unit.

The

optional latch trip circuit uses DC as standard.

6F9G0133

When a latched contactor is operated using AC power, it

is

recommended that a

Capacitor trip device be used.

The standard operating

voltage is as follows:

Non-latched type(normally

energized) :

100-240

V AC

/100-220V

DC

Latched type :

100-

240V

AC

/100-

250V

DC

closing voltage

:

100-11

OV

DC tripping voltage

Di

ode

(Latched type)

TIMER

52CC

2

U-----+-----'

- - - - - - - - - -

OSCILLATION

POWER

SWITCHING

Fig.3 Internal Configuration

of

Drive Unit

CAUTION

: Do not touch the drive unit without trouble.

9 -

VOLTAGE

DETECT

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6F9G0133

(1) CONNECTION

OF

CONTROL POWER SUPPLY

Fig.4

and

Fig.5

show

the

internal

connections

of

the

normally

energized

type

latched

type

respectively.

According

to

there

figures,

connection

should

be

made of

the

control

power

supply

and

open I close

command

contact

(power

relay

contact).

Tl

r----

L~c:Dc

Tl

1

Tl

L--~~.:_,,,

Tl

1

TS TS

T7 TS T9

Tl

0

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

------,

AC/DC

I
I

!C

~

g

f$

AUS

I

I

52CC

CLOSING

COIL

OF

CONTACTOR

Du

DRIVE

UNIT

I

11

9 7

I

I

11--

I
I

I

1 2 1 0 B

I

I

_J

I
I

AUS

AUX I LI

ARY

SWITCH

1

.........

6

CONTACTOR

TERMINAL

NUMBERS

T6

TB

TIO

Tl

TS

T7

T9

I

I
I

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

_

_J

Tll

TIS

T17

T19

T16

TlB

T20

T15T1ST17T1S

Tl 9 T20

CONTROL

CONNECTOR

Fig.4 Internal

connection

of

the

normally

energized

type.

DC/AC

TS TS

T7

TS

AUS

,,--,-0--9-0--<7

>--

~----

I

L1

__

2-o.-1-ao

-B-0----0--

__

_j

TIS

T16

T17

TIS

T13

T3

,,..

----.,

I

I
I

_____

_j

12

~

52CC

Du

AUS

1

......

6

52TC

D

Tl

T3

Tl

1

Tl

3

~

f$

CLOSING

COIL

OF

CONTACTOR

DRIVE

UNIT

AUXILIARY

SWITCH

CONT

ACTOR

TERMINAL

NUMBERS

TRIPPING

COIL

OF

CONTACTOR

DI

ODE

T6

TB

TS

T7

9

1 0

Tl S Tl

7

Tl

6

Tl

B

CONTROL

CONNECTOR

Fig.5 Internal

connection

of

latched

type.

1 0

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6F9G0133

(2) STANDARD OPERATION CIRCUIT

> >

C>

C>

I I

C>

C>

C>

C>

(.)

(.)

<(

0

Shown below are the vacuum contactor and its auxiliary circuits (control and
monitoring).
Fig.6 represents the standard operation circuit

of

the normally energized type

and Fig. 7 the

latched type.

Wiring

should be done according to these circuit diagrams.

OFF

I

E

~14

REMOTE

E

SWITCH

TS

T6

T7

TB

T9

Tl

0

El'l°N

l~,

A

A

A

VMC

----

-,

*l

AUS

I

4

J-r

l l

I

cos

~

~~~~~LOCK

i

I

I

5

l 2

l

0

_J

8

4

i

STOP

Du

i

INTERLOCK

i

6

I

I

2

I
I

T

Tl

1

v v v

115T16117

118

119

T20

Fig.6 Standard operation circuit

of

normally energized type.

NOTE:e

Be

sure to use quickly AC auxiliary relay contact NO for

self-holding.

If the

self-

holding circuit is formed by using the auxiliary contact No

of

the vacuum contactor , welding of the main contact may result when

the start button

is

pushed incompletely(refer to

*1

in Fig.6).

1 1

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>

0

"'

I

0
0

u

0

>

0

...

N

I

0
0

-

u

<

6F9G0133

T16

T17

T18 I T13

(a) Shunt trip

REMOTE

SWITCH

I

E

OFF \ 2E-RY

T6 T7 TS

AUS

9 7

CTD

Tl 6 Tl 7 Tl 8 Tl

3

(b) Capacitor trip

Fig. 7 Standard operation circuit

of

latched type.

NOTE : e Electrical

trip-free

circuit must be prepared outside the contactor.

e A stable DC power source such as battery

is

recommended for the

control circuit.
If DC power source is not available, employ a AC closing and a
Capacitor trip.

e Be sure to use the control connector between No.3 and No.13

(auxiliary contact) for trip circuit.
Connect the

control connector between No.5 and No.15

(auxiliary contact) for

control relay circuit.

1 2

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6F9G0133

10. Trial operation

Warning : Make sure main power

is

OFF.

After mounting and wiring

of

the vacuum contactor, make the following inspections.

1 ) Check for any

loose connections.

2) Check for any wiring errors. Perform this test with

only the control circuit energized.

confirm that the operation is correct. For the

latched type contactor, check that the
latch correctly engages and trips when the close/trip signals are applied. Also,
manually

trip the contactor using trip lever to verify proper operation.

1 3 -

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6F9G0133

11. INSPECTION AND MAINTENANCE

To maintain the function and performance

of

the vacuum contactor for a long period

of time, the

following inspections and maintenance procedures are recommended.

The intervals between inspections may vary depending on the conditions

of

use and

the environment under which the contactor

is

used. The initial inspection should be

carried out within one year

of

the start of equipment operation, and the succeeding

check

intervals should be determined according to the result

of

the initial inspection.

See Section 2 for use under special environment as

in

outdoor cubicles.

( 1 ) Patrol Inspection( every 1 - 6 months)

With the

cubicle energized,

visu~lly

check from out side the cubicle according to

the check

list

of

Table 4,5.

WARNING:

When opening the door of the cubicle, do not come close

to danger area.

Table 4 Patrol inspection items

Check item What to check

Abnormal noise

Check if corona discharges or operation
magnets are not producing noise.

Abnormal smell

Check if corona discharges or overheat are
not producing

abnormal smell.

Table

5 Patrol inspection items( cont.)

Check item What to check

Abnormal discoloration Is there not any discoloration due to

overheat?

Damage

Is there not any crack, break or dislocation

of

insulating material or operation tools?

Open/close

indication Is the OPEN/CLOSE indication (lamp)

normal?

1 4 -

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(2) Periodical Inspection/Detailed Inspection( every

1-2

years or every

20,000 operations)

The

facility should be removed out

of

service and perform inspection

According to the instruction given

in

Table

6.

WARNING:

Contact with energized components can cause severe injury

or death.

6F9G0133

Turn-off and lock out primary and control circuit before servicing.

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6F9G0133

Table 6 Periodical inspection and detailed inspection

Location

What

to inspect Decision criteria

What to do

Contactor as

Appearance

Abnormal appearance Check by sight.

Replace broken

a

whole

damage Parts.

Insulating

Check if moisture or

Material

dust adheres to the
insulator. Check by sight.

Clean.

Under

dusty environments,

frequent inspection

should be done.

Operating

Sliding parts Check for wear, loose or

devices

seized parts.

Spring Rust, deformation,

discoloration, or damage.

Electromagnets

Discoloration,

rust,

Check bye sight.

Clean parts and

wear,

or

loose mounting.

If necessary,

remove foreign

Check for scores and

check correct matters.

Latch
mechanism

wear

operation. Pour

oil

in
Also check loose Adequate
fastenings. amount.

Closing coil,

Check for discoloration

trip coil and burned parts.

Fastenings Check for

loose bolts or

nuts.

Primary

Terminal,

Discoloration

of

terminal Check by sight.

Retighten.

circuit

movable

and coupling conductor, check the If necessary,

conductor

loose fastenings. tightness. investigate the

cause and

replace

parts.

Interrupter

Vacuum Check contact wear and See Table

7.

Replace vacuum

Contact wear wipe.

Interrupter.

Vacuum

Check moisture and dust Check by sight.

Clean.

container

adhering to the surface.

Vacuum

level Check vacuum level by Apply AC 17kV

If found abnormal,

withstand voltage test. for 1 minutes.

inform the maker.

1 6

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6F9G0133

Location

What to inspect Decision criteria

What to do

Control

wiring

Check for discoloration

-

Retighten.

equipment and tightness.

Auxiliary switch Amount

of

dust attached. Check by sight.

Replace

if

damage

is excessive.

Drive unit Overheat,

discoloration. Check by sight.

Replace if abnormal

Insulation

Main circuit Measure insulation

More than

SOM

Q

When the insulation

resistance resistance between

resistance is

phases, between

below the standard

electrodes and between

level, investigate the

circuits and ground.

cause and, if

(Measurement is taken

necessary,

replace

by 1

OOOV

megger.)

parts.

Operation Measure

insulation

More than 1 M Q

circuit resistance between

circuits and ground.
(Measurement is taken

by

SOOV

meqqer.)

Dielectric

Main circuit Measure dielectric

AC

1.SE for

If found abnormal

strength

strength between phases,

10 minutes. inform the maker.

between

electrodes and
between circuits and
ground.

Open/close operation

Perform

open/close

If

found abnormal,
operation by electric check and repair.
operation test to confirm

If necessary,

the correct operation.

replace faulty parts.

Remarks: For extraordinary

(unscheduled) inspections , pick up check items from the above

table.

1 7

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6F9G0133

Table 7 Gap/wipe standard value

(mm;

Parts name

Gap Wipe

Allowable wear

Vacuum

Normally
energized

7.0-7.5

More than 3.0 2.0

interrupter

type
Latch type

7.0-7.5

More than 2.8 1.8

12. CRITERIA FOR DURABILITY

( 1) Electrical service life

The electrical service life

of

the vacuum interrupter

is

defined by the electrode wear the

number of

open/close operations (mechanical life).

To determine the electrode wear, measure the gap between the lever and washer

(dimension A)

in

a closed start , as shown in Figure8. With the vacuum interrupter
closed, if a contact wear gauge or a 1.0mm thickness gauge cannot be inserted ,
this means the end of

life is reached.

For the components

listed below, replacement or detailed inspection and cleaning

are recommended after the indicated number of operations.

Table 8 Electrical service life

Parts.

name

Electrical service life

Vacuum interrupter 100,000 operations

or

15 years
Auxiliary switch 100,000 operations or 10 years
Drive unit

100,000 operations or 10 years

Movable conductor

100,000 operations

or

15 years

Hence, parts

should be replaced around electrical service life operations.

CONTACT

SPRING

LEVER

WASHER

(MB)

Fig.8 Parts to be inspected

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6F9G0133

(2) Mechanical service life

The normally energized type has the mechanical service life

of

0.25 million operations ,

and the

latch type 0.25 million operations. (The mechanical service life

of

the vacuum

interrupter

is

100,000 operations.)

For the components

listed below , replacement or detailed inspection and cleaning are

recommended after the indicated number

of

operations.

Table 9

Parts name
Vacuum interru ter

Auxilia switch
Movable conductor
Latch mechanism
Closin Itri coil
Movable

core

Stationary core

Recommended

replacement parts

No. of o eration for

re

lacement

100,000

o erations or 15 ears

100,000 o erations

or

10 ears

100,000 o erations or 15 ears
250,000 o erations or 10 ears
250,000 o erations

Detailed inspection and cleaning
eve 100,000 o erations.

Detailed inspection and cleaning

eve 100,000 o erations.

1 9

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