GE ZBTSD manual Installation cont’d, IInitial Energization

Page 5

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.

 

4

1

 

E

5

2

P Relay

(Engine Start)

 

6

3

Contact rating is

 

10 Ampere at 120VAC

 

or 28VDC Gold plated

Figure 2

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.

Figure 2 shows location of engine start connections for Bypass Isolation Transfer Switch. Figure 6 (pg.5) shows location of engine start connections for Automatic Transfer Switch.

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.

Figure 3 (Typical)

IInitial 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 Source 1 line terminals.

6.Close Source 2 circuit breaker.

7.Start the generator’s engine.

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’s 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.14. Lock the enclosure.

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.

GE Zenith Controls

ZBTS / ZBTSD Operation and Maintenance Manual (71R-4000A)

3

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Contents
GE Zenith Controls Introduction Authorized ServiceTable of Contents Equipment Inspection and Storage SafetyFinal Equipment Inspection MountingEngine Start Control Connections InstallationPower Connections IInitial Energization Installation cont’dR E T E S T Initial Energization cont’dInstallation cont’d Entelli-Switch 250 Controller Entelli-Switch 250 ControllerLCD & Keypad Entelli-Switch 250 Controller cont’dStandard 3-Phase Sensing on 3 and 4 Pole Units Source User Setting for Voltage & FrequencyStds Exes Cons Sens Spes Psgs Accessory Group PackagesCalibrate Accessory DefinitionsA62 Accessory Definitions cont’d S12P R50S13P S14UMD How to Set the System ClockLoad / No-Load CDT One Event Timer ExerciserLoad / No-Load Clock Exerciser CDP Clock ExerciserTurn options on or OFF via keypad through the CFG menu Entelli-Switch 250 User Setup CFG MenuChange adjustable values through the SET menu Entelli-Switch 250 User Setup SET MenuView System Data Entelli-Switch 250 User Setup System InfoATS Testing TestingDelayed Transition Standard TransitionSequence of Operation Timer Designations as they appear in the SET menuBypass-Isolation Operation Sequence of Operation cont’dAutomatic 100-400 AMP600-1200 AMP 1600-4000 AMP Standard and Delay Transition Controls Power Supply CPSDelayed Transition CPS Schematic Controls Power Supply CPS cont’dStandard Transition CPS Schematic General Troubleshooting Troubleshooting and DiagnosticsInspection and Cleaning Maintenance and TestingTesting ServicingPage GE Zenith Controls