Table Of Contents - ABB Zenith ZTSCT Series Operation And Maintenance Manual

Authorized Service
For ABB parts and service, call: 773 299-6600

Table of Contents

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 . . . . . .
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
Introduction
ABB Zenith Transfer Switches are used to provide a continuous source of power for lighting and other critical loads by
automatically 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 ABB 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.
S: A protective device such as a molded case circuit breaker or fused
NOTE
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.
Page
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Test Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
ATS Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Open Transition . . . . . . . . . . . . . . . . . . . . . . . . 20
Closed Transition . . . . . . . . . . . . . . . . . . . . . . . 21
Emergency Service Procedure
for Extended Parallel Time . . . . . . . . . . . . . . . 22
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . 23
Open Transition . . . . . . . . . . . . . . . . . . . . . . . .123
Closed Transition . . . . . . . . . . . . . . . . . . . . . . . 24
Bypass-Isolation Operation . . . . . . . . . . . . . . . 25
100-400 AMP . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
.1 8
600-1200 AMP . . . . . . . . . . . . . . . . . . . . . . . . . . 27
1600-4000 AMP . . . . . . . . . . . . . . . . . . . . . . . . . 28
1600-3000 AMP, Horizontal Bypass . . . . . . . . . 29
Controls Power Supply (CPS) . . . . . . . . . . . . . . . . . 30
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Troubleshooting & Diagnostics . . . . . . . . . . . . . . . . 32
Maintenance and Testing . . . . . . . . . . . . . . . . . . . . . 33
Inspection and Cleaning . . . . . . . . . . . . . . . . . 33
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Page