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Circuit breaker (CB) testing equipment

 
  • Megger circuit breaker test equipment

Circuit breakers are mechanically sophisticated devices designed to carry load current under normal power system conditions, direct current flow between desired sections of an electric power system, and interrupt current flow under abnormal power system events and conditions, such as faults.

The proper functioning of a circuit breaker is reliant on a number of individual components, including the interrupter, the operating mechanism, and the auxiliary contacts and coils, which have to be tested at regular intervals.

Mechanical wear and lubrication often affects the performance of breakers, so being able to trend mission critical parameters and compare these with factory thresholds helps to verify proper breaker function.

Recommended circuit breaker tests include tests common to all types of circuit breakers (such as time & travel, contact resistance, minimum pick-up, and coil current), tests that depend on the circuit breaker technology being implemented, (pre/post insertion resistors, grading capacitors, dynamic resistance), the medium that insulates the breaker contacts, including air/gas, vacuum, and oil (such as gas density, air pressure, etc), and tests that depend on network design which ultimately dictates the necessity and presence of pre-insertion resistors or synchronous switching as well as shunt capacitors for the circuit breaker. 
 

 

Specialist Circuit breaker test equipment
Associated test equipment
TM1800 - Circuit breaker analyzer system with DualGround

TM1800 - Circuit breaker analyzer system with DualGround

DLRO 600 - Digital Microhmmeter

DLRO 600 - Digital Microhmmeter

TM1700 - Circuit breaker analyser system

TM1700 - Circuit breaker analyser system with Dualground

INGVAR - Portable 5000 A primary current injection test system

INGVAR - Portable 5000 A primary current injection test system

EGIL - Circuit breaker analyzer for breakers with one break per phase

EGIL - Circuit breaker analyzer for breakers with one break per phase

ODEN AT - Primary current injection test system

ODEN AT - Primary current injection test system

PCA2 - On-load protection condition analyser

PCA2 - On-load protection condition analyser

PCITS2000-2 - Primary Current Injection Test Sets

PCITS2000-2 - Primary Current Injection Test Sets

CABA Win - Circuit Breaker Analysis Software

CABA Win - Circuit Breaker Analysis Software

RCDT300 Series - Residual Current Device Testers

RCDT300 Series - Residual Current Device Testers

SDRM202

SDRM202 - Static and dynamic resistance measurement accessory for TM1800 and TM1700

MFT1700

PowerDB Pro - Test Data Management Software

VIDAR - Vacuum interrupter tester

VIDAR - Vacuum interrupter tester

AVO Training

AVO Training Institute

B10E- Trip coil tester

B10E - Trip coil tester

MOM2

DC Dielectric Tester - 70/120/160 kV DC Dielectric Test Sets

DC Dielectric Tester - 70/120/160 kV DC Dielectric Test Sets

 

 

EZ-THUMP

MJOLNER Series - Dual Ground Micro-ohmmeter

 

 

MOM200A - 200 A micro-ohmmeter

MOM200A - 200 A micro-ohmmeter

 

 

MOM600A - 600 A micro-ohmmeter

MOM600A - 600 A micro-ohmmeter

 

 

MS-2A - Circuit Breaker and Overcurrent Relay Test Set

MS-2A - Circuit Breaker and Overcurrent Relay Test Set

 

 

CSU600A-AT - Current Supply Unit

CSU600A-AT - Current Supply Unit

 

 

 

   

Get in touch

 

United Kingdom
Megger Ltd
Archcliffe Road,
Dover,
Kent
CT17 9EN
England

T. +44 (0) 1304 502101
E.