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Allis-Chalmers LA-1600 - User Manual

Allis-Chalmers LA-1600
25 pages
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A
CONTROLS
ALUS-CHALMIRS
'INSTRUCTIONS
AIR CIRCUIT BREAKER
TYPE LA-1600 & LA-1600F (FUSED)
,
!
---------
,
8WX-6638-6
1SX4582

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Summary

WARRANTY

INSTALLATION AND INSPECTION

Introduction

Introduces the type "LA" air circuit breakers and mounting options.

Receiving and Inspection for Damage

Details procedures for inspecting breakers upon receipt for transit damage.

Installation

Covers breaker adjustment checks, placement, and clearances for safe installation.

Storage

Provides guidance on storing breakers to prevent damage and maintain condition.

CAUTIONS FOR INSTALLATION AND OPERATION

OPERATION

Breaker Description

Details the interrupting capacity and continuous current rating of the LA-1600 breaker.

Manually-Operated Breaker

Explains the mechanism and operation of the manually operated breaker.

Electrically-Operated Breaker

Racking Mechanism and Interlock

SPRING DISCHARGE MECHANISM

Description and Function

Explains how stored-energy springs discharge when racking out the breaker.

Adjustments

Provides steps for adjusting the spring discharge mechanism for proper function.

MAINTENANCE AND ADJUSTMENTS

Maintenance Procedures

Outlines periodic inspection and servicing procedures for breaker longevity.

Lubrication

Details lubrication requirements for breaker components and recommended greases.

Maintenance Closing

Describes the process of closing breaker contacts for maintenance checks.

BREAKER ADJUSTMENTS

Trip-Latch Engagement

Specifies the required engagement for the trip latch and its rotation for release.

Main Contact Make

Details the required compression for main contacts and adjustment methods.

Arcing Contact Make

Outlines arcing contact touch requirements and adjustment procedures.

Electrically-Operated Breaker Adjustments

Covers adjustments for switches and gear disengagement on electrically operated breakers.

Contact Replacement

Hinge Contact Fingers

Moving Arcing and Main Contact

Release Magnet

FUSE FUNCTIONS

Current Limiting Fuse

Describes the interrupting rating and replacement of Current Limiting fuses.

Trigger Fuse

Explains the dual function of the trigger fuse for tripping and indication.

CURRENT TRANSFORMERS

Current Transformer Mounting and Rating Plate

Explains current transformer mounting and details breaker rating plate information.

TYPICAL SECONDARY DISCONNECTS

TYPICAL AUXILIARY SWITCH

TYPICAL SHUNT TRIP

TYPICAL UNDERVOLTAGE DEVICE

TYPICAL BELL ALARM (MANUAL RESET)

TYPICAL BELL ALARM (ELECTRICAL RESET)

Allis-Chalmers LA-1600 Specifications

General IconGeneral
BrandAllis-Chalmers
ModelLA-1600
CategoryCircuit breakers
LanguageEnglish

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