User's Manual

ManualsBrandsEmerson ManualsPower Switching and ControlsEmerson ASCO 7000 Series Medium Voltage Transfer Switch

Operator’s

Manual

7000 Series Medium-Voltage

Automatic Transfer Switches

4.76, 15.0, 27 kV; 1200, 2000, 3000 ampere

50 Hanover Rd., Florham Park, NJ 07928 USA

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

381333-395

DANGER is used in this manual to warn of a

hazard situation which, if not avoided, will result in

death or serious injury.

WARNING is used in this manual to warn of a

hazardous situation which, if not avoided, could

result death or serious injury.

CAUTION is used in this manual to warn of a

hazardous situation which, if not avoided, could

result in minor or moderate injury.

Typical 7000 Series MV ATS, 1200 A

ASCO 7000 Series Medium-Voltage Automatic Transfer

Switches (ATS) are designed to ANSI C37.20.2 standard

for metal-clad switchgear and are UL 1008A Listed.

Nameplate and Rating Label

The nameplate includes data for each specific automatic

transfer switch. Use the ATS only within the limits

shown on this nameplate. Each ATS has a rating label to

define the loads, interrupting, short-time, and close &

latch ratings. Refer to the label for specific values.

Do not exceed the values on the rating label.

Exceeding the rating can cause personal injury or

serious equipment damage.

Refer to the Group 5 Controller User’s Guide

381333-126 for ATS status display messages, time

dela

icku

& dro

out settin

s, & ad

ustments.

Catalog No., major components view ...............i

INSTALLATION

Mounting, Connections ................................ 1-1

OPERATION

Energizing ATS after Installation.................. 2-1

Controller, Lock-out relay (optional).............2-2

Transfer Test ATS, ACTS, ADTS ..2-3, 2-4, 2-5

TROUBLESHOOTING

ATS, ACTS, ADTS.........................3-1, 3-2, 3-3

INDE

...............................................back

Table of Contents

Refer to the outline and wiring drawings provided

with your 7000 Series ATS for all installation and

connection details and accessories.

DANGER

WARNING

CAUTION

WARNING

This equipment is designed for use with dangerous

levels of power from multiple sources. Additionally,

voltage transformers and standby control power

sources (i.e. station battery system, UPS) included in

the equipment must be disconnected when servicing

this equipment. Persons installing, servicing, and

operating this equipment must be trained, licensed

appropriately, and familiar with medium voltage

electrical power equipment and adhere to required

arel,

rotection, tools, controls, and

rocedures.

Summary of content (12 pages)

PAGE 1
Operator’s Manual ! 7000 Series Medium-Voltage Automatic Transfer Switches 4.76, 15.0, 27 kV; 1200, 2000, 3000 ampere DANGER DANGER is used in this manual to warn of a hazard situation which, if not avoided, will result in death or serious injury. ! WARNING WARNING is used in this manual to warn of a hazardous situation which, if not avoided, could result death or serious injury.
PAGE 2
i Catalog Number 381333-395 Catalog Number Identification A typical Catalog Number is shown below with its elements explained. The example is for a 7000 Series Automatic Transfer Switch, class A interrupting rating, automatic, open-transition transfer, dualcircuit breaker, 3 pole, 1200 ampere, 6.6 kV 60 Hz, in a Type 1 enclosure.
PAGE 3
81333-395 Installation 1-1 Installation The ASCO 7000 Series Medium-Voltage Automatic Transfer Switch (ATS) is factory wired and tested. Refer to the manual from the manufacturer of the metal-clad switchgear for section handling, installation, power connections, and testing. Supporting Structure The supporting foundation for the enclosure must be level and straight. Refer to the applicable enclosure outline drawing included with the transfer switch for all mounting details including door opening space.
PAGE 4
2-1 Operation Configuration of Shipped ATS The MV ATS is shipped with the circuit breakers and controls in the following state: ON CB SECTION(S) - Circuit Breakers, check these items ▪ Normal source circuit breaker (CBN) in the OPEN position with the closing spring discharged. ▪ Emergency source circuit breaker (CBE) in the OPEN position with the closing spring discharged.
PAGE 5
381333-395 Controller Settings for MV ATSs Refer to the Group 5 Controller User’s Guide 381333-126 for ATS status display messages, time delays, pickup & dropout settings, & adjustments. The Group 5 Controller is factory set for mediumvoltage operation. These are the special settings: Controller Voltage Jumper Blocks The control voltage is typically stepped down to 120V, so the eight jumper blocks are factory arranged horizontally for 120 V input.
PAGE 6
2-3 Operation 381333-395 Figure 2-5. 7ATS controls and indicators. ATS Electrical Operation This procedure checks the electrical operation of the automatic transfer switch. See Figure 2-5. Transfer Test Both normal and emergency sources must be available and the emergency source generator (if used) must be capable of being started in this procedure. Perform the steps at the right. Observe the status lights. ■ Black square means light is on. □ White square means light is off.
PAGE 7
381333-395 Operation 2-4 Figure 2-6. 7ACTS controls and indicators. ACTS Electrical Operation This procedure checks the electrical operation of the automatic closed-transition transfer switch. See Figure 2-6. Transfer Test Both normal and emergency sources must be available and the emergency source generator (if used) must be capable of being started in this procedure. Perform the steps at the right. Observe the status lights. ■ Black square means light is on. □ White square means light is off.
PAGE 8
2-5 Operation 381333-395 Figure 2-7. 7ADTS controls and indicators. ADTS Electrical Operation This procedure checks the electrical operation of the automatic delayed-transition transfer switch. See Figure 2-7. Transfer Test Both normal and emergency sources must be available and the emergency source generator (if used) must be capable of being started in this procedure. Perform the steps at the right. Observe the status lights. ■ Black square means light is on. □ White square means light is off.
PAGE 9
381333-395 Troubleshooting 3-1 ! Troubleshooting for MV ATS DANGER Hazardous voltage capable of causing shock, burns, or death is used in the switch. Do not touch the power or load terminal of the transfer switch! Refer to the Group 5 Controller User’s Guide 381333-126 for ATS status display messages, time delays, pickup & dropout settings, & adjustments.
PAGE 10
3-2 Troubleshooting 381333-395 Troubleshooting for MV ACTS Refer to the Group 5 Controller User’s Guide 381333-126 for ATS status display messages, time delays, pickup & dropout settings, & adjustments. ! DANGER Hazardous voltage capable of causing shock, burns, or death is used in the switch.
PAGE 11
381333-395 Troubleshooting 3-3 Troubleshooting for MV ADTS ! DANGER Hazardous voltage capable of causing shock, burns, or death is used in the switch. Do not touch the power or load terminal of the transfer switch! Refer to the Group 5 Controller User’s Guide 381333-126 for ATS status display messages, time delays, pickup & dropout settings, & adjustments.
PAGE 12
INDEX A E R ATS, i, 2-3, 3-1 ATS INFORMATION, screen, 2-2 ACTS, i, 2-4, 3-2 ADTS, i, 2-5, 3-3 Alarm Reset, i. 2-1, 2-2, 3-1, 3-2, 3-3 ASI 800-800-2726(ASCO), customercare@asco.