CTG Series Automatic Transfer Switch

Technical Summary

Standard Features

 Auxiliary Contact: <br>Closed when the switch is in the emergency position <br>(Additional contacts optional)

 Auxiliary Contact: <br>Closed when the switch is in the normal position<br>(Additional contacts optional)

 7, 14, 28 day interval timed exerciser, pushbutton/timer operation

 Engine Start Contact

 Indicating LED Pilot Lights: <br>-Switch in emergency position <br>-Switch in normal position <br>- Normal source available <br>-Emergency source available

 Time Delay to Engine Start: Standard setting 3 seconds, adjustable 0-10 seconds

 In-Phase Monitor, self-adjusting (Not available on CTGD models)

 Time Delay on Retransfer to Normal: To delay retransfer to normal source (immediate retransfer on generator set failure); standard setting 30 minutes, adjustable 0-60 minutes

 Push button Bypass of time delay and normal emergency

 Test Switch - Momentary

 Event Log OD 16 Event that track date, time, reason and action taken

 Voltage and Frequency Indication for S1 and S2

 Peak Shave/Remote Load Test: Input for peak shave or remote load test; includes automatic return to normal if emergency source fails and normal is present; 120 VAC

 When specified for use with a CTGD Series delayed transition switch, the control panel also includes the following:

MX150 Control Panel

 Time Delay for Engine Cool Down: Allows engine to run unloaded after switch retransfer to normal; standard setting 5 minutes, adjustable 0-60 minutes

 Time Delay on Transfer to Emergency: To delay transfer to emergency after verifying emergency source available; standard setting 1 second, adjustable 0-5 minutes

 Timer and voltage/frequency settings adjustable without disconnection from power sources

 Built-in diagnostics with LCD display for immediate troubleshooting

 LED/LCD indicators for ease of viewing and long life

 Nonvolatile memory (exerciser battery backup not required for standard operation)

 Processor and digital circuitry isolated from line voltage

 Inputs opto-isolated for high electrical immunity to transients and noise

 Communications header for network interface

Options

 Plant Exerciser, clock type (load/no load): Allows the generator to start and run unloaded or to simulate a power failure, start generator and run under load (7-14-28-365 days, user selectable)

 Space heater and thermostat

 Network communications interface card (LonWorks / ModBus)

 Maintained Test Switch

 Maintained Test Switch w/Keypad

 Service entrance configuration

 Auxiliary Contact, operates on Source 1 line failure

 Auxiliary Contact, operates on Source 2 availability

 Auxiliary Contacts: Closed when the transfer switch is in Source 2 position

 Auxiliary Contacts: Closed when the transfer switch is in Source 1 position

 Disconnect Switch: Permits transfer in “AUTO” position and inhibits transfer in “INHIBIT” position. (Standard 800A and above)

 Elevator Pre-Signal Auxiliary Contacts: Open 0-60 seconds prior to transfer to either direction, re-closes after transfer

 Universal Motor Load Disconnect Circuit: Auxiliary Contact opens 0-60 seconds prior to transfer in either direction, re-closes after transfer. Can be configured by end user for Pre-transfer, Post-transfer, or both.

 Voltage Imbalance Monitor (Three Phase)

 Lockable, see-through cover for ATS controller

 Power Measurement Meters

 Note:For applications requiring additional options or other configurations, see the CTS Series fully configurable transfer switch.