GE Comprehensive Installation Guide for Transfer Switch Models
Page 6

Installation (cont’d)

DANGER

HAZARDOUS VOLTAGE

(Can Cause Severe Injury or Death)

Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components.

E

4

1

 

5

2

P Relay

(Engine Start)

6 3

Contact rating is

10 Ampere at 120VAC or 28VDC Gold plated

Figure 3

Engine Start

Control Connections

The engine-start terminals are clearly identified by a label on the microcontroller backplate. In the case of manual transfer switches, or in other applications not requiring the microprocessor, clearly marked terminal blocks are provided in the upper left corner of the con- trol panel for the engine start control wires.

Terminals for field connections to the A3 Source 2 auxiliary contacts and the A4 Source 1 auxiliary contacts are also provided. These terminals are clearly marked and appear on the side of the power panel. On 400 amp metal frame units these terminals appear on the bracket above the operator handle.

NOTE: The controller will illuminate Source 2 Available LED when preset voltage and frequency levels are reached.

8.Verify the phase to phase voltages at Source 1 line terminals.

9.Verify that the phase rotation of Source 1 is the same as the phase rotation of

Source 2.

10.Shut down the generator engine.

11.Place the starting control in the Automatic position.

12.Complete the visual inspection of the transfer switch.

13.Close the enclosure.

14.Lock the enclosure.

Initial Energization

Before proceeding, refer to the information package supplied with the ATS and read and understand the information on all accessories provided.

1.Unlock the enclosure.

2.Open the enclosure.

3.Verify the correct system voltage.

NOTE: The equipment rating nameplate on the transfer switch lists the voltage. See Figure 4.

4.Close Source 1 circuit. breaker.

NOTE:The controller will illuminate Source 1 Available LED if proper voltage

is sensed.

5.Verify the phase to phase voltages at the Normal line terminals.

6.Close the Source 2 circuit breaker.

7.Start the generator engine.

GE Zenith Controls

SERIAL NUMBER:

 

RATING: VOLTS -

 

HZ -

AMPS -

PHASE -

SYSTEM VOLTS:

 

MODEL NUMBER:

 

 

Figure 4

CAUTIONS

Certain accessories, per specific

schematics, can inhibit automatic transfer.

Engine Gen-Set could start when engine control wires are attached.

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ZTG/ZTGD Operation and Maintenance Manual (70R-1000D)

GE Zenith Controls ■

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Contents GE Zenith Controls Authorized Service Table of ContentsIntroduction Final Equipment Inspection Safety / InstallationEquipment Inspection and Storage MountingInstallation cont’d Power ConnectionsEngine Start Control Connections Installation cont’d GE Zenith Controls Initial EnergizationInitial Energization cont’d R E T E S TMX150 Microprocessor Controller MX150 ControllerMX150 Microprocessor Controller cont’d LCD & KeypadSource User Setting for Voltage & FrequencyStandard Features, Mstdg Option Pkg CalibrateStd. Features, Mstdg Option Pkg. cont’d R50S13 Standard Features, Mexeg Option Pkg CDP replaces CDTOptional Accessories How to Set the System Clock CDT One Event Timer ExerciserCDT One Event Timer Exerciser cont’d How to Bypass Cancel an exercise during an exercise cycleCDP Clock Exerciser Load / No-Load Clock ExerciserMX150 User Setup CFG Menu Turn options on or OFF via keypad through the CFG menuMX150 User Setup SET Menu Change adjustable values through the SET menuMX150 User Setup System Info View System DataDelayed Transition TestingATS Testing Standard TransitionTimer Designations as they appear in the SET menu Sequence of OperationControls Power Supply CPS Standard and Delay TransitionControls Power Supply CPS cont’d Standard Transition CPS SchematicDelayed Transition CPS Schematic Troubleshooting and Diagnostics General TroubleshootingTesting Maintenance and TestingInspection and Cleaning ServicingPower Panel and Replacement Parts Standard Transition 40 to 260 Amps Solenoid TypePower Panel and Replacement Parts cont’d Standard Transition 400 to 600 Amps Molded TypeStandard Transition 800 to 1200 Amps ARC Grid Removed for ClarityStandard Transition 1600 to 3000 Amps Stationary Contact Moveable ContactDelayed Transition 40 to 600 Amps AmpsDelayed Transition 800 to 1200 Amps SCR-EO Movable Contact Stationary ContactDelayed Transition 1600 to 3000 Amps Movable E3 Contact StationaryPage Page Page GE Zenith Controls
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