Circuit Breaker Analyzer & Timer CAT65A

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Overview

  • Timing and motion measurement
  • 6 timing channels (3×2) for main and resistive contacts
  • 6 timing channels for auxiliary inputs
  • 3 transducer input channels
  • 6 coil current channels
  • 6 additional analog input channels
  • Detailed analysis of test results using DV-Win software

The Circuit Breaker Analyzer & Timer CAT65A instrument utilizes the latest improvements for safe and fast testing, with unique technical capabilities for additional diagnostics of circuit breakers. Sophisticated design ensures efficient and reliable operations in high-voltage substations and industrial environments.

First trip test
A “First trip” analysis is important to determine a condition of the coil operating mechanism. A circuit breaker spends most of its lifetime conducting a current without any operation. Once the protective relay detects a problem, the circuit breaker, that was idle for maybe a year or longer, has to operate as fast as possible. However, if the circuit breaker has not been operated for a long time, the latch friction may increase. Information about the latch friction can be obtained from the coil current waveform recorded during the “First trip” test.

Accessories

Included accessories

  • DV-Win software
  • USB cable
  • Mains power cable
  • Ground (PE) cable
Recommended accessories

  • Main contacts cables 5 m (16.4 ft) with SCT clamps
  • Main contacts extensions cables
    10 m (32.8 ft)
  • Coil control cable set 5 m (16.4 ft) with banana plugs
  • Coil supply cable set 2 x 5 m 2,5 mm2 (16.4 ft, 13 AWG) with banana plugs
  • Auxiliary contacts cable set 12 x 5 m
    (16.4 ft) with banana plugs
  • Analog channels cable set 12 x 5 m 2,5 mm2 (16.4 ft) with banana plugs
  • Cable plastic case – large size (2x)
  • Transport case
Optional accessories

  • Main contact cables Extension 5 m (16.4 ft)
  • Main contact cables Extension 15 m (49.2 ft)
  • Thermal printer 112 mm (4.4 in)(built-in)
  • Thermal paper roll
  • BSG feature for CAT6x and CAT12x II series (two breaks per phase)
  • CAT Calibration box
  • Digital rotary transducer with 5 m (16.4 ft) connection cable
  • Linear analog transducer 150 mm (5.9 in) with 5 m (16.4 ft) connection cable
  • Linear analog transducer 225 mm (8.85 in) with 5 m (16.4 ft) connection cable
  • Linear analog transducer 300 mm (11.8 in) with 5 m (16.4 ft) connection cable
  • Linear analog transducer 500 mm (19.68 in) with 5 m (16.4 ft) connection cable
  • Current clamp 30/300A + cable set 5 m (16.4 ft)
  • Cable plastic case with wheels – large size
  • Universal transducer mounting kit

Technical data

Main contact inputs

  • Number of contact inputs: 6 (3 x 2), 2 per phase.
  • Each channel detects Main and Pre-insertion resistor contacts.

Closed ≤ 10 Ω,
Resistor contacts range 10 Ω to 5 kΩ,
Open ≥ 5 kΩ
Open circuit voltage: 20 V DC
Short circuit current 50 mA

  • Each channel measures resistance of pre-insertion resistors
Auxiliary inputs

  • Number of channels: 6, galvanically isolated
  • User selectable: dry or wet
    • Contact sensing (dry):
      • Open circuit voltage 24 V DC,
      • Short circuit current 5 mA
    • Voltage sensing (wet):
      • Working voltage 300V DC, 250V AC
      • Low activation mode ± 5V
      • High activation mode ±10V
    • Overcurrent and overvoltage protection
Time measurement
Time measurement resolution:

  • 0,1 ms for 2 s test duration;
  • 1 ms for 20 s test duration;
  • 10 ms for 200 s test duration;

Time accuracy 0,05% of the reading ± resolution
 

Breaker operation

  • Close (C),
  • Open (O),
  • Close-Open (C-O),
  • Open-Close (O-C),
  • Open-Close-Open (O-C-O)
  • First trip test

The user can select any desired test sequence
 

Coil driver

  • Number of channels: 6 (3 Open and 3 Close coil)
  • Six separate outputs for coil triggering
  • Driver characteristics: 300 V DC max, 35 A DC max
  • Electronic drivers provide superior timing control
  • Overcurrent and overvoltage protection
  • Coil supply input: 300 V DC max, 35 A DC max
Coil current measurement

  • Current measurement for Open and Close coil, 6 channels, Hall-Effect sensor
  • Range ±35A DC to 5 kHz
  • Accuracy ± (0,5 % rdg + 0,1 % FS)
  • Graphic presentation: currents waveform is displayed with a resolution of 0,1 ms

 

Time measurement triggers

  • External trigger: 2 channels, input voltage, 10 V – 300 V AC/DC (coil control inputs open 1 & close 1 serve as external trigger input)
  • Coil currents: threshold level user selectable
  • Auxiliary inputs
  • Analog inputs: threshold level user selectable, positive or negative

 

Coil resistance measurement

  • 6 coils simultaneously
  • Measuring range / Resolution
  •    1 Ω – 99,9 Ω / 0,1 Ω
       100 Ω – 999 Ω / 1 Ω

  • Typical accuracy ± (0,5 % rdg + 0,5 % FS)

 

Universal transducer input

  • 3 digital travel transducer channels. Digital rotary transducers: 2500ppr
  • 3 analog travel transducer channels. Analog transducer input measurement resolution: 16 bit. Internal supply for linear transducer: 5 V DC
Analog inputs

  • 6 channels – Coil current measurement
  • 6 Voltage channels (coil voltage measurement on six coils simultaneously)
  • Each voltage channel has four measurement ranges: ±0.5 V, ±2,5 V, ±60 V and ±300 V AC/DC

The analog inputs are isolated with respect to all other circuits
 

DC output

  • 24 V voltage supply for current clamps

 

Static resistance measurement

  • Built-in Micro Ohmmeter 200 A
  • Current range 5 A – 200 A
  • Max. load voltage 6,2 V
  • Resistance range 0,1 µΩ – 999,9 mΩ
  • Resolution 0,1 µΩ
  • Accuracy ± (0,1 % rdg + 0,1 % FS)

 

Mains power supply

  • Connection according to IEC/EN60320-1; UL498, CSA 22.2
  • Mains supply: 90 V – 264 V AC
  • Frequency: 50/60 Hz
  • Input power: 250 VA
  • Fuse 2 A / 250 V, Fast blow, but not user replaceable

 

Dynamic resistance measurement

  • Voltage and current measuring channels
  • DRM sampling rate 40 kHz (0,0025 ms time resolution)
  • Resolution 16 bit
  • Breaker operations available for DRM test: Open (O)

 

Printer (optional)

  • Thermal printer
  • Graphic and numeric printout
  • Paper width 112 mm / 4.4 in
  • The print density is guaranteed within range: 5°C to 40°C, 20 to 85% relative humidity, non-condensing

 

Dimensions and weight

  • Dimensions: 480 mm x 197 mm x 395 mm

18,89 in x 7,75 in x 15,55 in

  • Weight: 12,9 kg / 28.4 lbs

 

Warranty

  • 3 years

 

Safety

  • Low Voltage Directive 2014/35/EU (CE Conform)
  • Applicable standards, for a class I instrument,    pollution degree 2,
       Installation category II : IEC EN 61010-1
  • CAN/CSA-C22.2 No. 61010-1
Environmental conditions

  • Operating temperature: -10 ºC – + 55 ºC / 14 ºF – +131 ºF
  • Storage & transportation: -40 ºC – + 70 ºC / -40 ºF – +158 ºF

Humidity 5 % – 95 % relative humidity, non condensing

Electromagnetic Compatibility

  • Directive 2014/30/EU (CE Conform)
  • Applicable standard EN 61326-1

 

All specifications listed herein are valid at the ambient temperature of + 25 °C (77°F) and with the recommended accessories included.

Specifications are subject to change without notice.

DV-Win

Viewing and overlaying several graphs for complete and easy test result comparison. Selecting the measurement points and intervals using two available cursors. Zoom and pan graph feature. Specific test sequence setup. Customized configuration of test result graphs.

For the CAT form of DV-Win software there is Help menu available, with detailed instructions and explanations of all functions and features.

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Version: 107
Published: 2017-02-14

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