ABB HPA 36kV - User Manual

MV SF6 Indoor Circuit Breaker
Model HPA 12kV, 24kV & 36kV
1VDU22001-YN
Instruction for Installation, Service and Maintenance

Summary

1.1 Data

2.2 Construction and function

2.2.1 Breaker poles

Explains the construction and function of the SF6 gas-filled breaker poles.

1.2 Operating Mechanism

1.2.2 Operating mechanism

Describes the mechanical system responsible for opening and closing the circuit breaker.

Operating Mechanism Working Principle

Explains the step-by-step working principle of the operating mechanism.

2.3 Maintenance

2.3.1 Maintenance schedule

Provides a detailed schedule for checking and maintaining the operating mechanism.

1.3 Maintenance

1.3.2 Checking and Refilling of SF6 Gas

Instructions for checking and refilling the SF6 gas in the breaker poles.

1.3.3 Control of gas pressure

Procedures for controlling gas pressure, especially for poles without gauges.

1.3.4 Checking of operating speed and time

Method for checking the operating speed and time of the circuit breaker.

1.4 Service instructions

1.4.1 Fault finding chart

A table listing common faults, their causes, and recommended remedies.

1.4.2 Replacement of operating coils

Instructions for replacing the operating coils in the circuit breaker mechanism.

1.4.3 Replacement of Micro-Switch

Procedure for replacing the micro-switches used in the circuit breaker.

1.4.4 Replacement of auxiliary contacts

Steps for replacing auxiliary contacts within the circuit breaker.

1.4.5 Replacement of motor

Guidance on how to replace the motor component of the circuit breaker.

1.4.6 Replacement of Damping device

Instructions for changing the damping device, noting its importance.

1.4.7 Replacement of operating mechanism

Procedure for removing and replacing the entire operating mechanism.

CHANGING OF BREAKER POLE

1.4.8 Changing of breaker pole

Specific steps for changing a breaker pole, including handling density gauges.

2.4 HPA-Operating gear adjustments

2.4.9 HPA-Operating gear adjustments

Detailed steps for adjusting the HPA operating gear.

2.5 Accessories, spare parts and additional equipment

ABB HPA 36kV Specifications