HV Circuit Breaker Operating Mechanisms - Hydraulic Systems

WHAT IS INCLUDED?

  • Receive a certificate of attendance in support of your continuing professional commitment
  • All workshops include the associated hardcopy technical manual
  • Printed workshop handouts
  • Lunch and refreshments
  • Interact and network with workshop attendees and experienced instructors
  • Practical, industry driven content to assist you in your continuing professional development (CPD)
  • Attendees automatically become IDC subscribers and receive exclusive deals and technical content every month

CONTENT SUMMARY

BASIC HYDRAULICS FOR CIRCUIT BREAKERS

  • What is Hydraulics?
  • Base Units
  • Pascal’s Law
  • Energy
  • Fluids
  • Hydraulic Circuits
  • Recommendations for working on hydraulic systems
  • Safety precautions

OPERATION OF ELECTRO-HYDRAULIC OPERATING SYSTEM

  • Introduction
  • Filters
  • Hydraulic Pump
  • Pump Classification
  • Accumulator
  • Control Valves
  • Hydraulic Actuator
  • Pressure Switch
  • Hydraulic Jack
  • O-rings

HYDRAULIC OPERATING SYSTEMS OF 3AS2 AND 3AQ2 I CIRCUIT BREAKERS

  • AS2 and 3AQ2 I Circuit Breakers
  • Construction of 3AS2 and 3AQ2 I Breakers
  • Specifications
  • Hydraulic System – Pressure Drop and Recharging Time
  • Electro-hydraulic Operating Mechanism
  • Oil Pressure Control
  • Nitrogen Priming Pressure vs. Temperature
  • Oil Tank
  • Filter
  • Hydraulic Operating Cylinder   
  • Valve Unit
  • Pilot Valve
  • Control Unit
  • Breaker Closing Operation
  • Breaker Opening         
  • Safety Valve Operation
  • Density Monitor
  • Breaker Protection

CIRCUIT BREAKER FA4 OPERATION AND HYDRAULIC OPERATING MECHANISM

  • Introduction
  • Equipment Common to All Three Phases
  • Pressure Switches

MAINTENANCE OF CIRCUIT BREAKER HYDRAULIC SYSTEMS

  • Safety  
  • Caution
  • Maintenance of Breaker Hydraulic Operating Mechanism
  • Filters
  • Accumulator
  • Hydraulic Pump
  • System Valves and Gauges
  • Functional Checking of the Hydraulic Operating System
  • General Maintenance Tips for a Hydraulic System
  • General Maintenance Guidelines for a Hydraulic System
  • Cleaning and Installation of Rubber Seals

BREAKER HYDRAULIC SYSTEM TIPS AND TRICKS

  • Hydraulic Oil   
  • Cleaning the Hydraulic System
  • Filling with Hydraulic Oil          
  • Venting the Hydraulic System
  • Lubrication
  • Tools
  • Locking of Threaded Material
  • Seals
  • O-Rings – Installation and Removal
  • Proof Testing of Breaker Mechanism   

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