GE General Electric Switch ZTSCT User Manual

Page 2 - Page; Table of Contents

Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Equipment Inspection and Storage . . . . . . . . . . 1 1 Final Equipment Inspection . . . . . . . . . . . . . . . 1 1 Mounting ....

Page 3 - Safety; Mounting; Final Equipment Inspection; D A N G E R; HAZARDOUS VOLTAGE; C A U T I O N; W A R N I N G

GE Zenith Controls 1 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Safety Each GE Zenith transfer switch is factory wired and tested. A complete information package is furnishedwith each switch which includes: a. Sequence of operation. b. Description and operation of all accessories ...

Page 4 - Installation; CABINET; Power Connections; Switch Size

2 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Installation Table 2 Tightening Torque for Lugs Socket Size Across Flats Torque Lb. - In. Lb. - Ft. 45 1/8 4 100 5/32 8 120 3/16 10 150 7/32 12 200 1/4 17 275 5/16 23 375 3/8 31 500 1/2 42 600 9/16 50 D CABINET LIFTIN...

Page 5 - Initial Energization; C A U T I O N S

GE Zenith Controls 3 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Installation (cont’d) Engine Start Control Connections The engine-start terminals are clearly identified by alabel on the microcontroller backplate. In the case ofmanual transfer switches, or in other applications not...

Page 7 - Control Connections

GE Zenith Controls 5 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Installation (cont’d) A complete information package is furnished witheach transfer switch including a complete connectiondiagram and schematic which details all necessarycontrol circuit field connections. The engine ...

Page 8 - Entelli-Switch 250 Controller; Microprocessor

6 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Entelli-Switch 250 Controller Entelli-Switch 250 Controller Consists of two major assemblies: I. The Microprocessor contains the following: A. Entelli-Switch 250 Board - Customer Inputand Output (I/O) for system inter...

Page 9 - S 1 O K; M O R E C F G T E S T S E T

GE Zenith Controls 7 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Entelli-Switch 250 Controller (cont’d) Figure 9 LCD & Keypad These options are accessible through the LCD andkeypad (see figure below). To become familiar with theoptions loaded into a particular unit, scrolling t...

Page 10 - User Setting for Voltage & Frequency; Source 1

8 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) User Setting for Voltage & Frequency Standard 3-Phase Sensingon 3 and 4 Pole Units Source 1 Under Voltage "Restore"Factory Default: 90%This adjustment determines the minimum acceptablevoltage required to t...

Page 11 - Accessory Group Packages; Accessories

GE Zenith Controls 9 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Accessory Group Packages Accessories 6P A1 A1E A3 A4 Calibrate CDT CDP DS** DT DW E EL/P K/P L1 L2 L3 L4 LN P1 Q2 Q3 Q7 R1-3 R15D R16 R50 S5P S12P S13P T T3/W3 U UMD VI W YEN STDS EXES CONS SENS SPES PSGS 2 2 2 2 2 2 ...

Page 12 - Accessory Definitions; LNP

10 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Accessory Definitions 6P Test Switch, Momentary 6A Test Switch, Maintained Auto/Momentary Test 6AP Test Switch, Maintained/Momentary utilizing keypad 6B Test Switch, Maintained - Auto / Momentary - Test, Key Operated...

Page 14 - - If S2 Frequency is greater than S1 Frequency,

12 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Accessory Definitions (cont’d) R50 In Phase Monitor this feature restricts Live to LiveSource Transfers to occur unless both Sources are within 7 electrical degrees or less of each other. (live Source tolive Source t...

Page 15 - UMD; YEN; How to Set the System Clock; Set System Clock, time and date

GE Zenith Controls 13 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Accessory Definitions (cont’d) 5 minutes. Adjust via SET menu (see page 18) UMD Universal Motor Load Disconnect Circuit: AuxiliaryContact opens 0-60 seconds prior to transfer in eitherdirection, re-closes after trans...

Page 16 - EXERCISER; How to initiate a new exercise start time; CDT One Event Timer Exerciser

14 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Load / No-Load One event Exerciser with adjustable Timer. Exerciseduration can be set between 5 and 60 minutes in1 minute increments. Can be configured to run every1,7,14, or 28 days. Factory default is 20 minutes. H...

Page 17 - CDP Clock Exerciser; How to check the next exercise event

S E T E X E R C I S E R 0 0 : 0 0 To save value and to move cursor to next field to be changed. Indicates # ofExercise Periods B A C K ^ v S AV E Indicates type of Exerciser DAILY, WEEKLY, 14-DAY, 28-DAY or 365-DAY Indicates Exerciser start:Time for DAILY ExerciserTime & Day for WEEKLY Exerciser...

Page 20 - Entelli-Switch 250 User Setup - System Info; View System Data

18 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Entelli-Switch 250 User Setup - System Info View System Data Enter six digit access code(The factory assigned six-digit access codeis located on the back of the controller) Figure 11 1 Engine Start Relay (De-Energize...

Page 21 - Testing; Introduction; Test Options

GE Zenith Controls 19 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Testing Introduction A manual operator handle is provided with thetransfer switch for maintenance purposes only. Manualoperation of the switch must be checked before it isoperated electrically. Both power sources mus...

Page 22 - ATS Testing; Open Transition; N O T I C E

20 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Testing (cont’d) ATS Testing Start generator and verify proper voltage, frequency and phasesequence (match to Source 1). Shut down gen set and place inAuto. Complete the visual inspection of the transfer switch, andc...

Page 23 - Closed Transition

GE Zenith Controls 21 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Testing (cont’d) Closed Transition GE Zenith Closed Transition Transfer Switches aredesigned to Transfer the Load between two availablesources with out interrupting power to the Load(Make-Before-Break). Paralleling o...

Page 24 - ZTSCT Transfer Switch

22 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Testing (cont’d) Emergency Service Procedure for Extended Parallel Time ZTSCT Transfer Switch If Source 2 breaker shunt trip was triggered after an extended parallel time (malfunction) occurred. Follow these steps to...

Page 25 - Sequence of Operation; Timer Designations as they appear in the SET menu; ATS Type

GE Zenith Controls 23 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Sequence of Operation Open Transition Source 1 Power Failure: When Source 1 voltage or frequency has fallen belowthe preset "Fail" values, the controller initiates theTime Delay Source 2 Start (Engine Start T...

Page 27 - Bypass-Isolation Operation

GE Zenith Controls 25 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Sequence of Operation (cont’d) Bypass-Isolation Operation An automatic transfer switch equipped with a bypass-isola-tion switch provides the ability to withdraw the ATS for test-ing and/or maintenance purposes withou...

Page 32 - Closed Transition CPS Schematic

C.V. SCR-N CONTROL VOLTAGE (SOURCE 1) C.V. SCR-E CONTROL VOLTAGE (SOURCE 2) C.V. SCR-EO CONTROL VOLTAGE (OPEN SOURCE 2) C.V. SCR-NO CONTROL VOLTAGE (OPEN SOURCE 1) SCR-NO JC 908 JC C.V. SCR-E C.V. 901 JC JC 908 808 JC SCR-EO C.V. JC JC 801 JC SCR-N C.V. GND 907 903 902 801 901 807 804 803 904 905 90...

Page 33 - Troubleshooting and Diagnostics; Symptom; General Troubleshooting

GE Zenith Controls 31 ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Troubleshooting and Diagnostics HAZARDOUS VOLTAGES CAN CAUSE SEVERE INJURY OR DEATH. These charts may indicate problems that require authorized GE Zenith service personnel. Hazardous voltages may exist on termination...

Page 34 - Maintenance and Testing; Inspection and Cleaning; Insert the handle and operate the

32 GE Zenith Controls ■ ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A) Maintenance and Testing A preventive maintenance program will insure highreliability and long life for the transfer switch. Thepreventive maintenance program for the transferswitch should include the following items:...

Page 36 - West; USA; Zenith Controls

A Product of GE Industrial SystemsGeneral Electric Company 830 West 40 th Street, Chicago, IL 60609 USA 773 299-6600 , Fax: 773 247-7805 www.geindustrial.com GE Zenith Controls