Test Circuit Breaker Contact Response Time with Vanguard's CT Series of Circuit Breaker Timers

Posted by Protec Tech Team on

Vanguard CT-7500 S2 Circuit Breaker Timer / AnalyzerCircuit breakers have a very critical purpose in an electrical system. They interrupt current if there is an overload in the main line. Their response should be very precise because a slow breaker may be too late to prevent damage in the electrical facility before it trips. A too sensitive and fast breaker may interrupt the current due to a harmless voltage spike. This can be a nuisance because you are always having to investigate the validity of the fault that tripped the breaker.

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To test for the circuit breaker's response time, technicians use a circuit breaker timer. This tester measures the travel time and distance of the contacts from one position to another. If you are thinking of getting a new tester for preventive maintenance, consider Vanguard's CT family of circuit breaker timers. These test sets are stand-alone devices with microprocessor based control and instrumentation systems to ensure accuracy and reliability. Aside from measuring contact response time, these testers can time relays and other devices that utilize a trigger voltage. These timers can analyze the response time of all breaker operations like Open, Close, Open-Close, Close-Open and Open-Close-Open. Read below for a comparison of testers to help you decide which model suits you best.

Vanguard CT-6500 Circuit Breaker Timer / Analyzer

This tester can fully analyze circuit breaker performance like contact time, velocity, over-travel, stroke and contact wipe. This tester allows thorough circuit breaker performance diagnostics to ensure safe and reliable operation of the protective devices.

Features

  • 3 dry-contact input channels
  • Each channel can detect insertion-resistor and main contact times
  • 1 analog voltage input for monitoring circuit breaker coil voltages and dc power supply
  • Integrated Hall Effect sensors allow you to record the trip/close duration and current level
  • 3 travel transducer channels lets you measure over-travel, stroke and bounce-back.
  • Transducer channels do not require setup of calibration
  • Can conduct a slow-close test 
  • EEPROM allows you to sore 200 timing shots
  • Built-in initiating circuitry lets you trigger circuit breakers using the tester
  • Capable of self-diagnostics on its electronics
  • RS232c interface lets you attach the device to a PC for results analysis and data transfer
  • Alpha numeric keypad
  • 4 x 20 LCD screen
  • 4.5 inch wide thermal printer
  • Selectable 1, 10 or 20-second timing window
  • 50-5000 Ω resistor detection range

Vanguard CT-7000 Digital Circuit Breaker Analyzer

With the CT-7000, you can rapidly analyze OCB, SF6 and vacuum circuit breakers. It can measure circuit breaker performance and can test all circuit breaker operations. It also has a solid-state initiating circuit that can trigger a breaker.

Features

  • 3 dry-contact input channels
  • Each channel can detect insertion-resistor and main contact times
  • 1 analog voltage input for monitoring circuit breaker coil voltages and dc power supply
  • Integrated Hall Effect sensors allow you to record the trip/close duration and current level
  • 3 travel transducer channels lets you measure over-travel, stroke and bounce-back.
  • Transducer channels do not require setup of calibration
  • Can conduct a slow-close test 
  • EEPROM allows you to store 50 timing shots
  • Lets you store 20 Breaker Test plans
  • Built-in initiating circuitry lets you trigger circuit breakers using the tester
  • Capable of self-diagnostics on its electronics
  • RS232c interface lets you attach the device to a PC for results analysis and data transfer
  • Alpha numeric keypad
  • 4 x 20 LCD screen
  • 4.5 inch wide thermal printer
  • Selectable 1 or 10-second timing window
  • 50-5000 Ω resistor detection range
  • Parallel printer port lets you connect the device to an external printer so you can print results on an 8.5-inch or 11-inch paper sheet

Vanguard CT-7500 S2 Circuit Breaker Timer / Analyzer

The CT-7500 is a simple to use stand-alone tester. It can perform the traditional Contact Time-Travel and also a Quick-shot testing. It also has a selectable 1 and 10-second timing window for long duration events.

Features

  • 3 dry-contact input channels
  • Each channel can detect insertion-resistor and main contact times
  • Contact Time-Travel and Quick Shot modes
  • 1 analog voltage input for monitoring circuit breaker coil voltages and dc power supply
  • Integrated Hall Effect sensors allow you to record the trip/close duration and current level
  • 3 travel transducer channels lets you measure over-travel, stroke and bounce-back.
  • Transducer channels do not require setup of calibration
  • Can conduct a slow-close test 
  • EEPROM allows you to store 150 timing shots
  • Lets you store 45 Breaker Test plans
  • Built-in initiating circuitry lets you trigger circuit breakers using the tester
  • Capable of self-diagnostics on its electronics
  • RS232c interface lets you attach the device to a PC for results analysis and data transfer
  • Alpha numeric keypad
  • 4 x 20 LCD screen
  • 4.5 inch wide thermal printer
  • Selectable 1 or 10-second timing window
  • 50-5000 Ω resistor detection range
  • Parallel printer port lets you connect the device to an external printer so you can print results on an 8.5-inch or 11-inch paper sheet

This electrical test equipment is available for rent, lease, or purchase from Protec Equipment Resources. We are here to help you with your testing equipment needs.

Wherever the job takes you (and the equipment), with Protec's multiple locations, we always ship from the office closest to your desired drop location (if the electrical test equipment you need is in-stock at that location), and the equipment can be returned to the nearest office.

We always consider ALL shipping options in order to save you the most time and money.

Also, if you happen to be close to one of our many office locations, walk-ins are always welcome!

Rely on the Electrical Test Equipment Rental Experts, we are there when and where you need us.

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Editor’s Note: This post was originally published June, 2012 and has been updated freshness, accuracy and comprehensiveness.

Topics: Vanguard, Circuit Breaker

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