Emerson Asco 7000 Series Operator's Manual
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Emerson Asco 7000 Series Operator's Manual

Emerson Asco 7000 Series Operator's Manual

Automatic closed–transition transfer & bypass–isolation switches g design 1000 through 3000 amp. sizes
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Operator's
Manual
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
INSTALLATION
Mounting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Connections
. . . . . . . . . . . . . . . . . . . .
Engine Starting & Auxiliary Circuits
Functional Test
. . . . . . . . . . . . . . . . . . . . .
TESTING & SERVICE
Transfer Test & Preventive Maintenance
Trouble-Shooting
. . . . . . . . . . . . . . . . . . . . . .
BYPASSING & ISOLATING
Bypassing the ATS
. . . . . . . . . . . . . . . . . . . .
Isolating the ATS
. . . . . . . . . . . . . . . . . . . . . .
Return to Service
. . . . . . . . . . . . . . . . . . .
INDEX
. . . . . . . . . . . . . . . . . . . . . . . . .
G7ACTB
Neutral
A
– solid
B
– switching
C
– overlapping
blank – none
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)
Automatic Closed–Transition Transfer
& Bypass–Isolation Switches
G design 1000 through 3000 amp. sizes
section-page
1-1
1-2
. . . . . .
1-2
1-3, 1-4
. .
2-1
2-2
3-1
3-2
3-3, 3-4
back cover
C
3
Phase Poles
Amperes
2
1000
– single Ø
3
1200
– three Ø
1600
2000
3000
7000 Series 7ACTB
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.
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.
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:
1200
N
5
Voltage
A
J
115
400
B
K
120
415
C
L
208
440
D
M
220
460
E
N
230
480
F
P
240
550
G
Q
277
575
H
R
380
600
www.asco.ca
Rating Label
Nameplate
C
Controller
Enclosure
5
C
– standard
– type 1
5X
F
– if
– type 3R
accessories
G
– type 4
ordered
L
– type 12
blank – open type
381333–136 C

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Summary of Contents for Emerson Asco 7000 Series

  • Page 1 7000 Series 7ACTB Operator’s Automatic Closed–Transition Transfer Manual & Bypass–Isolation Switches G design 1000 through 3000 amp. sizes Refer to the outline and wiring drawings provided with your 7000 Series ACTB for all installation and DANGER is used in this manual to warn of high connection details and accessories.

  • Page 2: Section 1 Installation

    SECTION 1 INSTALLATION The ASCO 7000 Series Automatic Closed–Transition Transfer & Bypass–Isolation Switch (ACTB) consists of an upper bypass–isolation switch, a transfer switch, a monitoring and transfer controller, and door–mounted controls. The ACTB is factory wired and tested. Installation requires removal of the shipping skid then securing the enclosure to the supporting foundation.

  • Page 3: Controller Ground

    INSTALLATION (continued) Bus Connections If bus connection is used, use SAE grade 5 hardware to De–energize the conductors before making any connect bus to appropriate terminal plates on bypass line or auxiliary circuitry connections. Be sure switching device. Wipe off bus surfaces before they are that Normal and Emergency line connections joined.

  • Page 4: Functional Test

    INSTALLATION (continued) GREEN observe these lights GREEN Figure 1-3. Standard controls and indicators. Close the normal source circuit breaker. The Transfer Switch Functional Test Connected To Normal and the Normal Source Accepted lights Read all instructions on the Wiring Diagrams and labels should come on.

  • Page 5: Electrical Operation

    INSTALLATION (continued) GREEN observe operate these lights this switch GREEN Figure 1-4. Standard controls and indicators. Turn and hold Transfer Control switch clockwise to Transfer 2 – Electrical Operation Test until the engine starts and runs (within 15 sec.). The This procedure checks electrical operation of the ATS.

  • Page 6: Testing & Service

    SECTION 2 TESTING & SERVICE TRANSFER TEST REPLACEMENT PARTS Test the Automatic Closed–Transition Transfer Switch Replacement parts are available in kit form. When or- portion of the 7000 Series ACTB at least once a month. dering parts provide the Serial No., Bill of Material No. This procedure checks the electrical operation of the (BOM), and Catalog No.

  • Page 7: Troubleshooting

    TESTING & SERVICE (continued) TROUBLE-SHOOTING Note any optional accessories that may be furnished on the ACTB and review their operation. Refer to any sepa- rate drawings and/or instructions that may be packed Hazardous voltage capable of causing shock, with the ACTB. burns, or death is used in this switch.

  • Page 8: Section 3 Bypassing & Isolating

    SECTION 3 BYPASSING & ISOLATING BYPASSING THE ATS* This procedure explains how to Bypass the closed You can only bypass to the same source automatic transfer switch contacts. Bypassing is required that the Transfer Switch is connected. before the ATS can be tested or isolated. The Bypass Solenoid interlock prevents incorrect operation.

  • Page 9: Isolating The Ats

    BYPASSING & ISOLATING (continued) ISOLATING THE ATS position Isolating is required before any service work can be window performed on the automatic transfer switch (ATS). Refer CONN to Figures 3–4, 3–5, 3–6, and 3–7. TEST ISOLATE 1. Bypass the closed automatic transfer switch contacts. See BYPASSING on page 3–1.

  • Page 10: Return To Service

    BYPASSING & ISOLATING (continued) RETURN TO SERVICE This procedure explains how to return the automatic Solenoid interlock prevents you from closing transfer switch (ATS) to service after inspection and the isolation contacts until the ATS is in the same position as the Bypass Switch. maintenance.
  • Page 11 BYPASSING & ISOLATING (continued) RETURN TO SERVICE continued* This procedure explains how to return the Bypass Switch You can only bypass to the same source Handle to the OPEN position. The Bypass Handle must that the ATS is connected. Solenoid be in the CLOSED position (yellow indicator on NOR- interlock prevents incorrect operation.
  • Page 12 INDEX Alarm Reset pushbutton, 1–4, 2–2 rating label, cover inspection, 3–1 auxiliary circuits, 1–2 removal of shipping angles, 1–1 installation, 1–1 removal of shipping skid, 1–1 isolating the ATS, 3–2 replacement parts, 2–1 bus connections, 1–2 return to service, 3–3 bypassing the ATS, 3–1 lights, 1–3, 1–4 service...

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