Cooper VR-32 User Manual

Refer to page 1-2 of these instructions for the definitions of warning and caution alerts.These instructions do not claim to cover all details or varia-
tions in the equipment, procedure, or process described, nor to provide direction for meeting every possible contingency during installation, opera-
tion, or maintenance. When additional information is desired to satisfy a problem not covered sufficiently for the user’s purpose, please contact your
Cooper Power Systems representative.
October 1992, reprint of 2/91
●
1992
©
Cooper Power Systems, Inc.
Voltage Regulators
Cooper Power System's VR-32 Regulator and CL-2A Control
Installation, Operation and Maintenance Instructions
Parts Replacement Information
1
Cooper Power Systems
S225-10-5
Service Information
TABLE OF CONTENTS
VR-32 REGULATORS - SECTION 1
Introduction ..................................................... 1-3
Receiving ........................................................ 1-3
INSPECTlON ............................................... 1-3
UNLOADING ................................................ 1-3
STORING ..................................................... 1-3
Installation ....................................................... 1-3
PRE-INSTALLATlON INSPECTlON ............. 1-3
NAMEPLATE................................................. 1-4
SYSTEMS CONNECTIONS ........................ 1-4
MOUNTING ................................................. 1-5
PLACING A REGULATOR INTO SERVICE . 1-5
Removal From Service ................................... 1-6
DETERMINING NEUTRAL POSITlON ........ 1-6
DE-ENERGIZING THE REGULATOR ......... 1-6
Maintenance Program .................................... 1-6
PERIODIC INSPECTlONS .......................... 1-6
REMOVAL OF CL-2A FRONT PANEL ......... 1-7
REPLACEMENT OF CL-2A FRONT PANEL ....... 1-7
UNTANKING THE REGULATOR ......................... 1-7
RETANKING THE REGULATOR ......................... 1-7
MAINTENANCE.................................................... 1-8
Construction........................................................... 1-8
SURGE PROTECTION ........................................ 1-8
POSlTlON lNDlCATOR & ADD-AMP .................... 1-8
INTERNAL CONSTRUCTlON &
WIRING DIAGRAMS ......................................... 1-10
CL-2A REGULATOR CONTROL - SECTION 2
Introduction ............................................................ 2-2
Specifications......................................................... 2-2
Pre-Installation Operational Check ...................... 2-2
In-Service Calibration Check ............................... 2-2
Setting the CL-2A Control for Service ................. 2-3
Control Operation Modes ..................................... 2-4
CL-2A Control Operation ...................................... 2-4
DEVELOPMENT OF POTENTIALS ..................... 2-7
LINE DROP COMPENSATOR.............................. 2-9
MOTOR CIRCUIT ................................................ 2-10
Automatic/Manual Operation ............................... 2-10
Supervisory Control and Data
Acquisition (SCADA) ............................................ 2-10
Voltage Reduction ................................................. 2-11
Retrofitting a CL-2A Control ................................. 2-11
VR-32 REGULATOR TAP CHANGER - SECTION 3
Tap Changer Operation ........................................ 3-1
Motor ....................................................................... 3-1
Reversing Switch .................................................. 3-1
Drive Mechanisms ................................................. 3-2
Contacts ................................................................. 3-3
Operating Sequence ............................................. 3-3
TROUBLE SHOOTING GUIDE - SECTION 4
Complete Regulator In Service ............................ 4-1
EXTERNAL CHECK ............................................. 4-1
DEFINING THE PROBLEM ................................. 4-1
JUNCTlON BOX TROUBLE SHOOTlNG ............. 4-1
POSlTlON lNDlCATOR REPLACEMENT ............ 4-2
FRONT PANEL TROUBLE SHOOTING .............. 4-3
CIRCUIT BOARD TROUBLE SHOOTlNG............ 4-4
CIRCUIT BOARD REMOVAL ............................... 4-10
ACCESSORIES - SECTlON 5................................. 5-1
SPARE PARTS - SECTION 6 ................................. 6-1
APPENDIX - SECTION 7 ........................................ 7-1
Serial Numbers....................................................... 7-1
List of Tables ......................................................... 7-1
List of Diagrams ..................................................... 7-1

Cooper VR-32 Specifications

General

Brand	Cooper
Model	VR-32
Category	Controller
Language	English