AT CB-300 - Circuit Breaker Analyser

Product Overview 

AT CB-300 Circuit Breaker analyser can be used to test and measure the mechanical characteristic parameters of high voltage switch (such as vacuum, six fluoride, less oil). Some key of this offering are stable measurement data, simple operation, has strong anti- interference ability, can be in the 500KV level and below the power station to do experiments, wiring is convenient, and is the most convenient tool for high-voltage switch maintenance test.

Product Features 

  • Instrument can automatically identify the fracture opening and closing state, and accordingly correspond to the fracture tip and operation
  • Independent 12 fracture can detect and indicate the connection state of the fracture, facilitating the user to check the wiring
  • Tester can store 50 groups of test results
  • Large screen (320*240) LCD display, advanced gray screen (anti-reflective in sunlight)
  • Easy to operate with user-friendly interface
  • Instrument can be divided into electric and manual test
  • For high and low voltage test, automatically find the lowest open or closing voltage
  • Reclosing test, can do parameters test for open-closing, closing-open and open-closing-open etc.
  • Vacuum contractor (single coil) parameter measurement.

Technical Specifications

Technical Specifications 

Time Measurement

12 channel

Inherent Opening (Closing time)

Opening (closing) in different phases

Opening (closing) in different periods

The closing (opening) bounce time

Test Range



Within 1ms~100ms: 0.5%+-2 words

>100ms: 1%+-2 words

Velocity Measurement

Breaking (just close velocity)

Speed Rage

1mm sensor 0.01~25.00m/s

0.1mm sensor 0.001~2.50m/s

0.5° angle sensor 0.01~25.00m/s

Universal Sensor


Stroke Measurement

Moving contact stroke

Contract travel (opening)

Overshoot stroke or reversible stroke

Sensor Measurement Range

Linear displacement sensor 50mm, resolving power:

0.1mm, stroke 0.1~ 50mm

Linear displacement sensor 300mm, resolving power:

0.1mm, stroke 10~ 300mm

Linear displacement sensor 500mm, resolving power:

1mm, stroke 10~ 500mm

Current Measurement

The maximum current value of the opening (closing) coil will be displayed


320X240 LCD Screen, Adjustable contrast

Data storage

Can store 100 sets of measurement data


High speed thermal printer


AC/DC 220V +- 10%; 50Hz +- 2%

DC Power Supply

Output voltage: 35~265V continuously adjustable

Output current: ≤ 15A (short time)





Relative Humidity




Applied Techno Products Pvt. Ltd.

303, Tower B, Millennium Plaza,

Sector -27, Gurugram - 122002

Tel : +91-124-4288186 / 187 / 188

Fax: + 91-124- 4288189

Email : 

Time  :   09:30 am - 06:00 pm (Mon to Sat.)

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