GE ZBTSD manual Authorized Service, Table of Contents, Introduction

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Authorized Service

For GE parts and service, call: 773 299-6600

Table of Contents

Page

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Equipment Inspection and Storage . . . . . . . . . .11 Final Equipment Inspection . . . . . . . . . . . . . . .11 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Power Connections . . . . . . . . . . . . . . . . . . . . . . .12 Engine Start Control Connections . . . . . . . . .12-3 Initial Energization . . . . . . . . . . . . . . . . . . . . .13-4 Control Connections . . . . . . . . . . . . . . . . . . . . . 5 Entelli-Switch 250 Microprocessor Controller . . . . .16 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 LCD & Keypad . . . . . . . . . . . . . . . . . . . . . . . . . .17 User Setting for Voltage & Frequency . . . . . . .1 8 Accessory Group Packages. . . . . . . . . . . . . . . . . 9 Accessory Definitions . . . . . . . . . . . . . . . . . . 10-13 How to Set the System Clock . . . . . . . . . . . . . . 13 CDT One Event Timer Exerciser . . . . . . . . . . 14 CDP Clock Exerciser . . . . . . . . . . . . . . . . . . . . 15 User Setup - CFG Menu . . . . . . . . . . . . . . . . . . 16 User Setup - SET Menu . . . . . . . . . . . . . . . . . . 17 User Setup - System Info . . . . . . . . . . . . . . . . . 18 Bypass-Isolation Operation . . . . . . . . . . . . . . . . . . .121 100-400 Amps . . . . . . . . . . . . . . . . . . . . . . . . . .122 600-1200 Amps . . . . . . . . . . . . . . . . . . . . . . . . .123 1600-4000 Amps . . . . . . . . . . . . . . . . . . . . . . . .1 24

Page

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

ATS Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Standard Transition . . . . . . . . . . . . . . . . . . . . . 19

Delayed Transition . . . . . . . . . . . . . . . . . . . . . . 19

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . 20

Standard Transition . . . . . . . . . . . . . . . . . . . . .120

Delayed Transition . . . . . . . . . . . . . . . . . . . . . . 20

Controls Power Supply (CPS) . . . . . . . . . . . . . . . . . 21

Schematics, Standard & Delay . . . . . . . . . . . . .122

Troubleshooting & Diagnostics . . . . . . . . . . . . . . . . 23

Maintenance and Testing . . . . . . . . . . . . . . . . . . . . . 24

Inspection and Cleaning . . . . . . . . . . . . . . . . . 24

Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

ZBTSH/ZBTSDH . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Standard Control Panel Layout (SSRCP) . . . . 25

Panel Mount Control Relays . . . . . . . . . . . . . .125

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . 26

Adjustments and Settings . . . . . . . . . . . . . . . . . . . . . 27

Solid State Timers . . . . . . . . . . . . . . . . . . . . . . .127

Voltage/Frequency Sensor (VSFM) . . . . . . . . .127

Solid State Phase Relay . . . . . . . . . . . . . . . . . . .127

Introduction

GE Zenith Transfer Switches are used to provide a continuous source of power for lighting and other critical loads by auto- matically transferring from source 1 power to source 2 power in the event that source 1 voltage falls below preset limits.

Voltage sensing and system control is performed via a state-of-the-art microcontroller located on the cabinet door. It is designed to give highly accurate control of the transfer switch system.

All GE Zenith transfer switches are designed for use on emergency or standby systems, and are rated for total system or motor loads. Transfer switches are UL Listed under Standard 1008 and CSA Certified under Standard C22.2 No. 178 and IEC Listed under Standard 947.

NOTES:

A protective device such as a molded case circuit breaker or fused disconnect switch MUST be installed on both sources of incoming power for circuit protection and as a disconnection device.

All references made within this manual about the term “S1” or “Source 1” relate to a Normal Power Source.

All references made about the term “S2” or “Source 2” relate to an Emergency or Alternative Power Source.

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Contents
GE Zenith Controls Introduction Authorized ServiceTable of Contents Final Equipment Inspection SafetyEquipment Inspection and Storage MountingEngine Start Control Connections InstallationPower Connections Installation cont’d IInitial EnergizationInitial Energization cont’d R E T E S TInstallation cont’d Entelli-Switch 250 Controller Entelli-Switch 250 ControllerEntelli-Switch 250 Controller cont’d LCD & KeypadUser Setting for Voltage & Frequency Standard 3-Phase Sensing on 3 and 4 Pole Units SourceAccessory Group Packages Stds Exes Cons Sens Spes PsgsCalibrate Accessory DefinitionsA62 Accessory Definitions cont’d S13P R50S12P S14How to Set the System Clock UMDCDT One Event Timer Exerciser Load / No-LoadCDP Clock Exerciser Load / No-Load Clock ExerciserEntelli-Switch 250 User Setup CFG Menu Turn options on or OFF via keypad through the CFG menuEntelli-Switch 250 User Setup SET Menu Change adjustable values through the SET menuEntelli-Switch 250 User Setup System Info View System DataDelayed Transition TestingATS Testing Standard TransitionTimer Designations as they appear in the SET menu Sequence of OperationSequence of Operation cont’d Bypass-Isolation Operation100-400 AMP Automatic600-1200 AMP 1600-4000 AMP Controls Power Supply CPS Standard and Delay TransitionDelayed Transition CPS Schematic Controls Power Supply CPS cont’dStandard Transition CPS Schematic Troubleshooting and Diagnostics General TroubleshootingTesting Maintenance and TestingInspection and Cleaning ServicingPage GE Zenith Controls