Northern Lights APR 63-5 Instruction Manual

CONFIDENTIAL INFORMATION

)

of Basler Electric, Highland, IL. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric.

INSTRUCTION MANUAL

FOR

VOLTAGE REGULATOR

Model: APR 63-5

Publication:

9 1687 00 991

Revision E June 2000 ECO: 9609

First Printing November 1986

BASLER ELECTRIC, BOX 269, HIGHLAND, IL 62249 PHONE 618/654-2341 FAX 618/654-2351

INTRODUCTION

The Basler APR 63-5 Voltage Regulator is a CSA/UL approved unit contained in an encapsulated plastic case. The regulator controls the dc exciter field power of conventional, 50 or 60 hertz brushless generators that have a 63 Vdc field to regulate the output voltage.

Regulation is provided by sensing the generator output voltage, converting it to a dc signal and comparing the signal to a reference voltage signal. An error signal is developed and used to control the dc field power in order to maintain a constant generator output.

SPECIFICATIONS

Certification: UL Listed, CSA Certified

DC Output Power: 5.0 Adc @ 63 Vdc (315

W) maximum continuous, 8.5 Adc @ 105 Vdc (893 W) one minute forcing.

Exciter Field DC Resistance: 12.6 ohms minimum, 100 ohms maximum.

AC Input Power: 190 to 277 Vac ±10%, singlephase, 50/60 Hz. Burden: 650 VA.

AC Sensing Input: 190 to 240 Vac (240 V tap), 380 to 480 Vac (480 V tap), single-phase, 50/60 Hz. Burden: 5 VA maximum.

Voltage Adjust Range (Internal):170 to 264 Vac (240 V tap) or 340 to 528 Vac (480 V tap).

External Voltage Adjust Rheostat: 1,000 ohms, 2 W (supplied as an optional item).

Voltage Build-Up: Internal and automatic from generator residual voltage (6 Vac minimum).

Overexcitation Shutdown: Output power removed under the following conditions: Exciter field voltage exceeds 100 ±5 Vdc for a time inversely proportional to voltage magnitude, or instantaneously if voltage exceeds 135 ±5 Vdc.

Operating Temperature: –40°C (–40°F) to +60°C (+140°F).

Storage Temperature: –65°C (–85°F) to +85°C (+185°F)

FUSES

Install 5 A, 250 V, high interrupting capacity, fast-blowing fuses in lines 3 and 4. See interconnection diagrams.

MOUNTING

The regulator may be mounted in any position. Refer to the outline drawing for dimensions. The regulator may be mounted directly on the generator set using ¼” hardware. Select the proper hardware to withstand any expected shipping or transportation conditions.

Basler Electric Highland, Illinois

SOLID-STATE

VOLTAGE REGULATOR

Sensing: 240, 480 Vac Power: 190-277 Vac

650VA Output: 63 Vdc 5A Oper. Freq. 50/60 Hz

4.75

(121)

0.45 (12)

Model: APR 63-5

1.58 (40)

FREQ

STAB

VOLT

3.16 (80)

5.66

(144)

D2717-07 11-18-97

1.35 (34)

1.68 (43) NOTE: ALL DIMENSIONS ARE IN INCHES (MILLIMETERS)

0.90 (23)

COM

CB+

APR 63-5 Outline Diagram

0.625

0.625 (15.88)

1.094

(27.78)

D2717-08.vsd

06-06-00

(15.88)

NOTE: ALL DIMENSIONS ARE IN INCHES (MILLIMETERS)

0.375 (9.53)

0.25

(6.35)

0.53

(13.49)

0.125 (3.18)

(20.64)

External Voltage Adjust Potentiometer

(Optional), Basler P/N 17727

120

"CORNER FREQUENCY"

100

(% FROM NOMINAL)

GENERATOR OUTPUT

D2717-05

11-18-97

0010 20 30 40 50 60

FREQUENCY (HZ.

60 HZ

Frequency Compensation Curves

OVEREXCITATION SHUTDOWN

If the exciter field voltage exceeds 100 ±5 Vdc, the regulator automatically removes the field current after a time delay. The time delay is inversely proportional to the magnitude of the detected overvoltage condition. At approximately 135 ±5 Vdc, the field voltage is removed instantaneously. Refer to the following figure.

Upon detection of overexcitation and the resulting field voltage shutdown, the regulator will not reset or return to an operational condition until the generator output drops to less than 6 Vac for 10 seconds minimum.

60 HZ

50 HZ

CB-

F-

F+

240

480

0.81

500 400

300

200

100

80 60

50 40

8 6

5 4

TIME DELAY (SECONDS)

D2717-06

11-18-97

80 90 100 110 120 130 140 150

FIELD VOLTS (dc)

135 5

Typical Inverse Time

Delay Characteristic Curves

REGULATOR CONTROLS

FREQ CONTROL

This control prevents generator and regulator damage by dropping the generator output voltage when the generator frequency drops.

a. Set generator RPM to desired frequency

roll-off.

b. Adjust FREQ control until voltage starts

to drop off.

c. Speed up generator to rated speed. Volt-

age should be at nominal.

STAB CONTROL

This control allows the generator response time (and thus voltage stability) to be adjusted. Use an oscilloscope or other voltage recording device to set this control.

a. Rotation of STAB control CW will slow

voltage response time.

b. Rotation of STAB control CCW will speed

response time. If rotated too far, generator voltage will hunt (oscillate).

c. Rotate STAB control CW just past point

where voltage oscillation occurs.

VOLT CONTROL

Rotation of VOLT control CW will increase generator output voltage.

Removing jumper (terminals 6 and 7) and connecting external potentiometer (1,000 ohms, 2 watts) allows a ±10% adjustment of voltage range with nominal set by VOLT control.

INTERCONNECTION

Refer to the following interconnection diagrams.

a. Connect the jumper from COM to either

the 50 Hz or 60 Hz terminal depending upon the generator frequency.

b. Remove the jumper and connect termi-

nals CB– and CB+ to the CBS 305 inputs (if used). If the CBS 305 is not being used, leave the jumper in place.

c. If an external voltage adjust control is

being used, connect the potentiometer to terminals 6 and 7 as shown. If not, connect a jumper between terminals 6 and 7.

d. Connect the exciter field to terminals F+

and F–. Be sure to observe polarity.

e. Connect the input power to the genera-

tor stator to provide power to terminals 3 and 4. Fuse both leads. Install the optional shutdown switch, if desired.

f. Connect the sensing input to either 240

or 480 depending on voltage. The sensing should be connected line-to-line.

GEN

B C

FIELD

4802403764F+F-CB+CB-

D2717-09 11-18-97

COM

JUMPER FOR 60HZ OR 50HZ.

REMOVE JUMPER IF CBS 305 IS USED.

TO CBS 305 (OPTIONAL)

}

50 HZHZ

VOLTAGE REGULATOR

SHUTDOWN

SWITCH

EXTERNAL

VOLTAGE

ADJUST

APR 63-5

250V, 5A, FAST BLOWING, HIGH INTERRUPTING CAPACITY FUSES.

IF EXTERNAL ADJUST RHEOSTAT IS NOT BEING USED, JUMPER TERMINAL 6 TO TERMINAL 7.

240 Vac, 1-Phase Interconnection Diagram

4802403764F+F-CB+CB-

D2717-10

11-18-97

A B C N

480V

GEN

COM

JUMPER FOR 60HZ OR 50HZ.

REMOVE JUMPER IF CBS 305 IS USED.

FIELD

TO CBS 305 (OPTIONAL)

}

50 HZHZ

VOLTAGE REGULATOR

SHUTDOWN

SWITCH

EXTERNAL

VOLTAGE

ADJUST

APR 63-5

250V, 5A, FAST BLOWING, HIGH INTERRUPTING CAPACITY FUSES.

IF EXTERNAL ADJUST RHEOSTAT IS NOT BEING USED, JUMPER TERMINAL 6 TO TERMINAL 7.

480 Vac Interconnection Diagram

GEN

FIELD

TO CBS 305

(OPTIONAL)

COM

HZHZ

JUMPER FOR 60HZ OR 50HZ.

REMOVE JUMPER IF CBS 305 IS USED.

SHUTDOWN

SWITCH

EXTERNAL

VOLTAGE

}

F+F-CB+CB-

APR 63-5

VOLTAGE REGULATOR

250V, 5A, FAST BLOW, HIGH INTERRUPTING CAPACITY FUSES.

IF EXTERNAL ADJUST RHEOSTAT IS NOT BEING USED, JUMPER TERMINAL 6 TO TERMINAL 7.

ADJUST

ISOLATION TRANSFORMER

480240376

D2717-11 11-18-97

Isolation Transformer Interconnection Diagram

OPERATION

The following system operation procedures provide instructions for adjusting the APR 635 Voltage Regulator.

CAUTION

Meggers and high potential test equipment must not be used. Incorrect use of such equipment could damage the semiconductors contained in the regulator.

PRELIMINARY SETUP

To prevent damage to the regulator, complete the following steps before proceeding with system startup.

a. Verify that the voltage regulator specifi-

cation conforms with the generator system requirements.

b. Ensure that the regulator is correctly

connected to the generator. See interconnection diagram.

c. Install fuses per

FUSES

paragraph.

During periods of prime mover idling, use the excitation shutdown switch.

SYSTEM STARTUP

a. Start the prime mover and bring it up to

rated speed. Voltage should build up. If a minimum residual of 6 Vac is not present, perform field flashing.

b. Slowly adjust VOLT control until voltage

reaches nominal value. If used, adjust remote voltage adjust to set generator output to exact value desired.

c. Apply and remove load to check stability.

Adjust per

STAB CONTROL

paragraph

if voltge is unstable.

d. Reduce generator frequency (speed) to

55 Hz (on 60 Hz systems) or 45 Hz (on 50Hz systems). Check that generator output decreases from this point. If it does not, adjust per

FREQ CONTROL

para-

graph.

ACCESSORY EQUIPMENT

Power Isolation Transformer

Parallel Compensation

- BE 18674 001

- APM2000 and Cur-

rent Transformer

Manual Voltage Control

Current Boost System

- MVC-300

- CBS305 and Current

Transformer

OPERATIONAL TEST

a. Connect the test setup as shown below

and apply 240 Vac as shown.

b. Adjust the VOLT control fully CCW. Ob-

serve that the lamp is not lit.

c. Adjust the VOLT control fully CW. Ob-

serve that the lamp is lit.

d. Adjust the VOLT control until the lamp

just goes out.

60 HZ

Basler Electric

hland, Illinois

SOLID-STATE

VOLTAGE REGULATOR

Sensin

: 240, 480 Vac

Power: 190-277 Vac

650VA Output: 63 Vdc 5A Oper. Fre

. 50/60 Hz

Model: APR 63-5

FREQ

STAB

VOLT

D2717-12 11-18-97

COM

50 HZ

CB-

CB+

F-

F+

240

480

10 OHMS

10 W

Operational Test Setup

FIELD FLASHING

When the regulator is operated with the generator for the first time, the polarity of residual magnetism may not be correct or the magnitude may not be enough. If the generator does not build up, shut down the prime mover and proceed as follows.

a. With the prime mover at rest, apply a dc

source (not grounded) of not more than

48 Vdc to terminals F+ and F– in series

with a limiting resistor. Use 1 ohm of re-

sistance for each volt from the dc source

with a power rating of at least 1 watt per

volt.

b. Allow approximately 30 seconds before

removing the dc source.

c. Start the prime mover and measure the

voltage at the regulator leads 3 and 4. If

the voltage is greater than 6 Vac, voltage

buildup should occur. Repeat flashing if

less than 6 Vac residual is measured.

100 W

LIGHT BULB

240 VAC