Cooper S225-10-30 User Manual

1
VR-32 Voltage Regulator with Quik-Drive Tap-Changer
Installation, Operation, and Maintenance Instructions
Voltage Regulators
Service Information
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Acceptance and Initial Inspection . . . . . . . . . . . . 3
Handling and Storage . . . . . . . . . . . . . . . . . . . . . . 3
Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Available Options . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pre-installation Inspection . . . . . . . . . . . . . . . . . . 6
Systems Connection . . . . . . . . . . . . . . . . . . . . . . . 6
Nameplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Placing Regulator into Service . . . . . . . . . . . . . . 10
Setting the Manual Limit Switches . . . . . . . . . . . 12
Removal from Service . . . . . . . . . . . . . . . . . . . . . 13
Construction and Operation . . . . . . . . . . . . . . . . . . 14
Standard Pole-Mounted Regulator,
External Features . . . . . . . . . . . . . . . . . . . . . . . . 14
Position Indicator and ADD-AMP Capabilities . 15
Surge Protection . . . . . . . . . . . . . . . . . . . . . . . . . 15
Internal Construction and Wiring . . . . . . . . . . . . 16
Quik-Drive Tap-Changers . . . . . . . . . . . . . . . . . . 20
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . 23
Untanking the Regulator . . . . . . . . . . . . . . . . . . . 24
Retanking the Regulator . . . . . . . . . . . . . . . . . . . 25
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Contents
S225-10-30
Printed in USA
October 2007 • New Issue
Figure 1.
VR-32 Voltage Regulator with Quik-Drive tap-changer and CL-6 control.
1

Cooper S225-10-30 Specifications

General

Brand	Cooper
Model	S225-10-30
Category	Controller
Language	English

Summary

Safety Information

Installation

Pre-installation Inspection

Systems Connections

Guidance on connecting the regulator to single-phase or three-phase circuits.

Placing Regulator into Service

Setting the Manual Limit Switches

Removal from Service

Determining Neutral Position

Methods to ensure the regulator is in the neutral position before removal.

Construction and Operation

Position Indicator and ADD-AMP Capability

Explains the position indicator and ADD-AMP feature for regulation adjustment.

Surge Protection

Series Arrester

Quik-Drive Tap-Changers

Quik-Drive Tap-Changer Mechanism

Maintenance

Periodic Inspections

Untanking the Regulator

Troubleshooting

Tap-Changer Operation Troubleshooting

Steps to diagnose and resolve issues with tap-changer operation.

Motor Capacitor Problem

How to check and identify problems with the motor capacitor.

Control Panel and Function Code Issues

Diagnostic and Error Messages

Interpreting self-diagnostics, error messages, and sync signals.

Component Replacement and Testing

Troubleshooting Procedures and Tests

Regulator Control Reverse Power Flow

Test procedure to verify reverse power flow control functionality.

VR-32 Voltage Regulator Ratio Test

Regulator Dry-Out Procedure

VR-32 Regulator Current Test

Insulation Test

Procedure to Free a Stalled Tap-Changer

Tapping to Neutral and Verifying Neutral Tap Position If Front Panel Is Completely Inoperable

Connecting Single-Phase Voltage Regulators for Parallel Operation

Negative Reactance Method

Applied Voltage