Westinghouse Porcel-line 75 DHP 500 User Manual

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Instructions
for
Porcel
-
line
®
Type
DHP
Magnetic
Air
Circuit
Breakers
Westinghouse
Electric
Corporation
Distribution
and
Control
Business
Unit
Commercial
Operations
Division
-
ILS
Department
Pittsburgh
,
PA
15220
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Effective
January
,
1989
Supersedes
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dated
September
,
1978
Courtesy of NationalSwitchgear.com

Westinghouse Porcel-line 75 DHP 500 Specifications

General

Brand	Westinghouse
Model	Porcel-line 75 DHP 500
Category	Circuit breakers
Language	English

Summary

SAFETY FEATURES AND PRACTICES

Safety Features

Details built-in interlocks and features for safe operation and preventing misuse.

Safe Practices

Outlines essential safe practices for handling complex high-voltage circuit breakers.

RECEIVING, HANDLING, AND STORING

BREAKER COMPONENTS

INTERLOCKS AND CONTROL SYSTEMS

Interlocks

Lists and explains various interlocks that ensure proper operation and prevent misuse.

Control Schemes and Trip Attachments

INSTALLATION

Breaker Preparation and Cell Insertion

Breaker Engagement within the Cell

Procedures for pushing the breaker into the test and then the engaged position.

ADJUSTMENTS

Contact and Tripper Adjustments

Provides guidance on adjusting contact gaps, penetration, and floor trippers.

MAINTENANCE AND SERVICE

Inspection Schedules and Conditions

Maintenance Procedures

Outlines procedures for maintaining contacts, arc chutes, mechanisms, and lubrication.