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Circuit Breaker Analyser Systems

When a fault such as a short circuit or current overload is detected by a protective relay, a trip impulse is sent to the circuit breaker. The circuit breaker must function as specified and interrupt the current as soon as possible or severe damage may occur. The damage caused by a malfunctioning circuit breaker can often be catastrophic, resulting in significant damage to the electrical system.

Given that circuit breakers may be inactive for months or even years prior to a fault, a regime of circuit breaker testing is an important safety factor. Proper functionality of a breaker is reliant on a number of individual components that have to be calibrated and tested at regular intervals to ensure the complete and successful breaking of the circuit when triggered. Poorly maintained circuit breakers may not activate after receiving the trigger signal sent by the protective.

Measurement   EGIL TM1700 TM1800
Main Contact Timing 1 break per phase
  2 break per phase ✓ (phase by phase) ✓ (phase by Phase and a max of 6 breaks per phase)
  3+ break per phase  
Travel Analysis    ✓
Dual Ground    
Main and PIR Contact Timing 1 break per phase
  2 break per phase ✓ (phase by phase)
  3+ break per phase   ✓ (phase by Phase and a max of 6 breaks per phase)
Coil Current 1 operating mechanisim
  3 operating mechanisims    
Motion 1 operating mechanisim
  3 operating mechanisims  
Auxiliary Contact Timing 1 operating mechanisim
  3 operating mechanisims  
  3+ auxiliary contacts per  phase  
Static Contact Resistance Measurment  
Dynamic Contact Resistance Measurement  
Vibration    
First Trip and Online Measurement    

Megger EGIL

CB Analyzer for one break per phase

EGIL is a much-loved tester designed specifically for medium-voltage breakers having one main contact per phase and appeals greatly to the smaller contractor and those. Main contacts and parallel contacts having pre-insertion resistors are recorded and displayed simultaneously. Coil currents and two auxiliary contacts are also measured as standard. EGIL can be equipped with an analogue channel e.g. for motion measurement and a USB port for communication with the CABA computer program. EGIL with the SDRM option together with the SDRM accessory enables static and dynamic resistance measurements.

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Megger TM1700 Series

CB Analyzer for multiple breaks per phase

The little brother in the very popular TM-family employs much of the technology from the top of the line version TM1800 and is capable of timing main contacts. Offering excellent value for money, the TM1700 series comes in five models starting from PC-remote controlled to fully stand-alone. One important feature is the test wizard that quickly guides the operator through the test setup. All inputs and outputs on the instrument are designed to withstand the challenging environment in high voltage substations and industrial environments. Dual Ground™ testing makes the testing safe and time saving when the breaker is grounded on both sides.

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Megger TM1800

CB Analyzer for multiple breaks per phase

The modular design of this top-of-the-line set makes it possible to configure the TM1800 for measurements on all known types of circuit breakers in operation on the world market. The robust design product contains powerful technology that streamlines circuit breaker testing. Sophisticated measurement modules enable great time savings as many parameters can be measured simultaneously, eliminating the need for new setup each time. The circuit breaker can be grounded on both sides throughout all tests including timing due to the patented DCM module. Dual Ground™ testing makes the testing safe and time saving.

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Megger B10E

Variable Voltage supply for coil and Minimum Ops testing

  • Reliable and stable a.c. and d.c. power supply for circuit breaker testing
  • Continuously variable 24-250 V AC or DC output
  • Separate outputs for close coil, trip coil and spring charging motor voltage
  • Direct triggering for minimum trip voltage testing
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Megger VIDAR

Vacuum Interrupter Tester

  • Tests the integrity of vacuum interrupters quickly, safely and easily
  • User defined voltage selection
  • Extensive voltage range
  • Easy to operate. Follows ANSI/IEEE standardized DC test methods.
  • Lightweight and portable
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Megger MS-2A-230

Megger Circuit Breaker & Overload Relay Test Set

  • Light Weight, Portable Primary Injection Test Instrument
  • Overcurrent Relay Testing
  • Ground Fault Performance Testing for NEC 230.95
  • Circuit Breaker Testing
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Megger TRAX

Multifunctional Substation Test System

  • Replaces need for multiple test sets
  • Saves time by eliminating need for multiple instruments learning
  • User-friendly interface reduces training and testing time
  • Portable and compact system components for easy shipping
  • State of the art measurement methods for advanced diagnostic testing
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