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381333–136 C

50 Hanover Road, Florham Park, New Jersey 07932–1591 USA

For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com

ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3

telephone 519 758–8450, fax 519 758–0876, for service call 1 888 234–2726 (ASCO) www.asco.ca

Operator’s

Manual

7000 Series 7ACTB

Automatic Closed–Transition Transfer

& Bypass–Isolation Switches

G design 1000 through 3000 amp. sizes

DANGER is used in this manual to warn of high

voltages capable of causing shock, burns, or death.

WARNING is used in this manual to warn

of possible personal injury.

CAUTION is used in this manual to warn

of possible equipment damage.

TABLE OF CONTENTS

section-page

INSTALLATION
Mounting

1-1

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

Power Connections

1-2

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

Engine Starting & Auxiliary Circuits

1-2

. . . . . .

Functional Test

1-3, 1-4

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

TESTING & SERVICE
Transfer Test & Preventive Maintenance

2-1

. .

Trouble-Shooting

2-2

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

BYPASSING & ISOLATING
Bypassing the ATS

3-1

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

Isolating the ATS

3-2

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

Return to Service

3-3, 3-4

. . . . . . . . . . . . . . . . . . .

INDEX

back cover

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

Refer to the outline and wiring drawings provided

with your 7000 Series ACTB for all installation and

connection details and accessories.

Refer to

Group 5 Controller User’s Guide

381333–126

for ATS status display messages, time delays, pickup

& dropout settings, and adjustments.

An experienced licensed electrician must install the

7ACTB.

Rating Label

Each 7000 Series 7ACTB contains a rating label to

define the load and fault circuit withstand/closing

ratings. Refer to the label on the Transfer Switch for

specific values.

Do not exceed the values on the rating label.

Exceeding the rating can cause personal injury

or serious equipment damage.

Nameplate

The Transfer Switch nameplate includes data for each

specific 7000 Series 7ACTB Use the switch only within

the limits shown on this nameplate. A typical Catalog

Number is shown below with its elements explained:

Catalog Number Identification

Typical 7000 Series ACTB catalog no. for overlapping

neutral, 3 pole, 1200 amp., 480 V, in Type 1 enclosure:

G7ACTB

C

3

1200

N

5

C

Phase Poles

Neutral

A

– solid

Amperes

Voltage

Controller

Enclosure

B

– switching

5X

– if

accessories
ordered

5

– standard

G

– type 4

C

– type 1

F

– type 3R

L

– type 12

3

– three Ø

2

– single Ø

B

120

D

220

A

115

C

208

E

230

K

415

M

460

J

400

L

440

N

480

G

277

F

240

H

380

Q

575

P

550

R

600

1200

2000

1000

1600

blank – none

blank – open type

C

– overlapping

3000

Содержание ASCO 7000 Series

Страница 1: ...ies ACTB for all installation and connection details and accessories Refer to Group 5 Controller User s Guide 381333 126 for ATS status display messages time delays pickup dropout settings and adjustments An experienced licensed electrician must install the 7ACTB Rating Label Each 7000 Series 7ACTB contains a rating label to define the load and fault circuit withstand closing ratings Refer to the ...

Страница 2: ...00 Series ACTB for all mounting details including door opening space If bottom cable entry is used the foundation must be prepared so that the conduit stubs are located correctly Refer to the appropriate enclosure outline drawing for specified cable entrance area and location Provide cable bending space and clearance to live metal parts When a concrete floor is poured use interlocking conduit spac...

Страница 3: ...ply joint compound to conductor then carefully wipe away excess compound Tighten the cable lugs to the torque specified on the rating label Be sure that the Normal and Emergency power connections are in proper phase rotation Bus Connections If bus connection is used use SAE grade 5 hardware to connect bus to appropriate terminal plates on bypass switching device Wipe off bus surfaces before they a...

Страница 4: ...s See Figure 1 3 Black square means light is on White square means light is off If necessary adjust voltage regulator on generator per the manufacturer s recommendations The ACTB will respond only to rated voltage specified on the nameplate Now continue to 2 Electrical Operation on next page 1 Close the normal source circuit breaker The Transfer Switch Connected To Normal and the Normal Source Acc...

Страница 5: ...ans light is on White square means light is off 3 Turn the Isolation Handle clockwise approximately 16 turns to the CONN connected position 4 Push in the Bypass Handle and turn it counterclock wise until the OPEN indicator shows green This completes the Functional Test of the ACTB 1 Turn and hold Transfer Control switch clockwise to Transfer Test until the engine starts and runs within 15 sec The ...

Страница 6: ...closure Brush and vacuumaway any excessive dust accumulation Remove any mois ture with a clean cloth Check the transfer switch contacts Remove transfer switch barriers and check the condition of the contacts Replace contacts when pitted or worn excessively Reinstall the barriers carefully Maintain transfer switch lubrication If switch is subjected to severe dust or abnormal operating con ditions r...

Страница 7: ... Feature 2E time delay to time out Starting control must be in the automatic position Failure to Synchronize light comes on Conditions of Normal or Emergency Sources not suitable for closed transition transfer Recheck voltage and frequency of both sources Press Alarm Reset pushbutton Extended Parallel Time light comes on CN and CE contacts are closed longer than setting in the Control Panel Open t...

Страница 8: ... ATS is bypassed to Normal Source Figure 3 1 Bypass Handle and position indicators To Bypass Normal Source Load connected to Normal Source The Transfer Switch Connected To Normal light is on and Transfer Switch Connected To Emergency light is off Push in the Bypass Handle all the way then turn it clockwiseuntil Bypass Switch Positionshows CLOSEDon NORMAL yellow indicator The red light Unit Not In ...

Страница 9: ...tch Bypass Switch Figure 3 5 TEST to ISOLATE position 4 Open the lower enclosure door Pull out the side rail carriage then roll out the transfer switch It can be safely inspected in this position The transfer switch can also be removed for easier maintenance opera tions unfold crank position window CONN TEST ISOLATE counterclockwise draws out transfer switching device Figure 3 6 Isolation Handle N...

Страница 10: ...s black NORMAL or EMERGENCY at the Bypass Switch Handle This indicates the source connected to the load 4 Observe which Transfer Switch Connected To light is on Normal or Emergency on the door This is the positionoftheTransferSwitch If itis notin thesame position as the Bypass Handle change the position of the Transfer Switch as follows To change the position of transfer switch Operate to NORMAL O...

Страница 11: ...assed to Emergency or yellow NORMAL when ATS is bypassed to Normal Source Figure 3 11 Bypass Handle and position indicators To Un Bypass Normal Source Load connected to Normal Source The Transfer Switch Connected To Normal light is on and Transfer Switch Connected To Emergency light is off Push in the BypassHandle thenturn itcounterclockwise until Bypass Switch Position shows OPEN green indica tor...

Страница 12: ...1 maintenance handle 2 2 warning 2 2 manual load transfer 2 2 warning 2 2 N nameplate cover Normal Source Accepted light 1 3 O operation electrical 1 4 manual 2 2 warning 2 2 P parts 2 1 phase rotation check 1 3 preventive maintenance 2 1 problem 2 2 R rating label cover removal of shipping angles 1 1 removal of shipping skid 1 1 replacement parts 2 1 return to service 3 3 S service ASCO Services ...

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