Handheld Circuit Breaker Analyzer & Timer DV Power CAT-P

SKU: CAT-P000-EU-R1

The CAT-P is a DV Power battery-operated handheld tester with 3 timing channels for Online and Offline testing of circuit breakers.

  • Online (First Trip test) Measurement
  • 3 Timing channels for main and pre-insertion contacts
  • Graphical results overview via 5.7 touchscreen color display
  • A battery-operated device with up to 8 hours of battery operation
Free shipping over 200 EUR
Estimated shipping time 4-5 weeks

The CAT-P is a DV Power battery-operated handheld tester with 3 timing channels for Online and Offline testing of circuit breakers. It measures and displays graphical results for main contact timing (Offline / Online), open and close coil currents, and analog signals such as DC substation battery voltage.

  • Online (First Trip test) Measurement
  • 3 Timing channels for main and pre-insertion contacts
  • Graphical results overview via 5.7 touchscreen color display)
  • Handheld Circuit Breaker Tester (weighs only 1,4 kg)
  • A battery-operated device with up to 8 hours of battery operation

Intended use

 The circuit breaker tester, DV Power CAT-P, is designed to measure the main contact timing of LV and HV circuit breakers with 1 interrupting chamber phase in:
  • Offline mode – The timing of the main contacts is obtained while the Circuit Breaker is offline, by using the standard A1 alligator clamps, which can be easily connected to the circuit breaker's main contacts.
  • Online (First Trip Test) mode - The timing of the main contacts is obtained by connecting the AC current clamps across the secondary winding of the CTs while the Circuit Breaker is online.
The list of instrument applications includes:
  • Measuring the timing of the main contacts (1 break per phase) including pre-insertion resistors (if present) and auxiliary contacts.
  • Measuring the resistance of the pre-insertion resistors (if present).
  • Evaluating the synchronization between the circuit breaker chambers.
  • Coil Control (via external optional Coil Control module)for actuation of circuit breaker’s OPEN and CLOSE coil.
  • Pre-trigger time measurement
  • Evaluating the state of the substation’s battery.

„First Trip“ Test

The „First Trip“ test or the „Online“ mode testing is important to assess the condition of the coil operating mechanism and provide us with essential information on how the circuit breaker would perform in a real-life fault situation.When the Circuit Breaker is in service, the standard method for offline timing measurement cannot be used. Instead of this method, three AC clamps are connected across the secondary side of the current transformers in each phase.The measurements can be easily triggered by either current (using the DC clamps), connected across the Trip Coil, or voltage (using the provided Voltage Sense test leads). Nevertheless, of the used trigger source, the functional CAT-P instrument will measure the parameters and after the test completion will graphically and numerically display all of the measurements.

Similar models

DV Power CAT Handheld series consists of two models, CAT-P and CAT-H. The handheld CAT-H device has a built-in Coil Control module and is capable of performing Offline timing testing of Circuit Breakers. For more information, check out the Product overview of the CAT-H instrument.

Product information
Product name Handheld Circuit Breaker Analyzer & Timer DV Power CAT-P
Brand DV Power
Main contact inputs
Number of contact inputs 3 (3x 1), 1 per phase
Each channel detects main contacts Closed ≤ 10 Ω
Resistor contacts range 10 Ω to 5 kΩ
Open ≥ 5 kΩ
Open circuit voltage 20 V DC
Short circuit voltage 50 mA
Time measurement
Time measurement resolution 0,05 ms to 10 ms depending on test duration
(sampling rate up to 20 kHz)
Time accuracy 0,05% of the reading ± resolution
External trigger Yes, 2 channels
Breaker operation
Sequences First Trip Test
Close (C)
Open (O)
Close-Open (C-O)
Open-Close (O-C)
Open-Close-Open (O-C-O)
DC Current clamps
Nominal current 300 ARMS or 450 A DCPK
Measuring range 30/300 A
Frequency range DC to 20 kHz (-3 dB)
AC Current clamps
Measuring range 0,05 A to 5 ARMS
Typical accuracy ±3% ±1 mV (from 0,05 A to 0,5 A),
±1,5% ±1 mV (from 0,5 A to 1 A), ±1%
(from 1 A to 5 A)
Analog inputs
Coil current measurement 1 channel
Voltage measurement 1 channel
Internal memory
Internal memory Over 30 000 test results (including numerical and graphical data)
Power supply
Input 12 V DC, 5 A
Input 90 – 264 V AC, 50/60 Hz
Internal battery supply
Battery 2 x 3,7 V, 2900 mAh rechargeable and
user replaceable Li-ion battery
Battery operation 8 hours under normal usage
Display
Size 145 mm (5.7 inches)
Type Touch screen color display
Applicable standards
Safety Low Voltage Directive - Directive 2014/35/EU (CE conform)
Applicable standards, for a class I instrument, pollution degree 2,
Installation category II - IEC EN 61010-1
Electromagnetic Compatibility Directive 2014/30/EU (CE conform)
Applicable standard - EN 61326-1
CAN/CSA-C22.2 No. 61010-1
Environmental conditions
Operating temperature -10 ºC to + 55 ºC / 14 ºF to +131 ºF
Storage & Transportation -40 ºC to + 70ºC / -40 ºF to +158 ºF
Humidity 0% - 95% relative humidity, non-condensing
PC Interface
PC Interface Yes, USB
Warranty
Warranty 3 years
Dimensions and Weight
Dimensions (W x H x D) 170 x 310 x 58 mm (6,7 x 12,2 x 2,3 in)
Weight 1.4 kg (3,1 lbs)
  • Current clamp 30/300 A power supplied from the instrument with extension 5 m and adapter
  • AC Current clamp 1 A / 1 V with 5 m cable (3pcs)
  • CAT-P device
  • Main contacts cable set 8 m with alligator clamps (A1)
  • Dolphin clip (black)
  • Dolphin clip (red)
  • Plastic transport case for CAT-P
  • Jumper cable 1 x 30 cm 2,5 mm2 with banana plugs with retractable isolation (black)
  • Jumper cable 1 x 30 cm 2,5 mm2 with banana plugs with retractable isolation (red)
  • Main contacts connection 3 x 1 m and ground 2 m cable with alligator clamps (A1)
  • Plastic transport case for accessories
  • Mains power cable EU 10 A with power supply adapter 12 V / 5 A
  • Resistive touch pen
  • Voltage sense cable set 2 x 5 m 2,5 mm2 with banana plugs
  • USB with DV-Win software
  • Mini USB cable

DV-Win software provides acquisition and analysis of the test results. Graphical presentation of a variety of measurements and timing test results uses cursors and powerful zoom functions for detailed analysis. Colors, grids, scales and positioning of the test data are all controlled by the user. DV-Win supports an automatic unit conversion (e.g. cycles to seconds or mm to inches). The test records can be exported in .cath file format for further analysis.
DV-Win software provides:

  • Downloading the test results from the CAT-H to PC
  • Acquisition and analysis of the test results
  • The test results can be viewed, edited, saved, printed and exported
  • Viewing and overlaying several graphs, for an easy test result comparison
  • Selecting the measurement points and intervals using the two cursors
  • Zoom and pan graph feature
  • Customized configuration of the test result graphs