High Precision Current Transformer Analyzer

Model: CTP-120PA

The portable and high precision current transformer analyzer CTP-120PA allows performing all tests foreseen by international standards on CTs and inductive VTs.

For CT tests, the instrument can be connected directly up to 6 taps via Multi-tap Switch Box. In this way the connection to the device under test it’s executed only one time without the need of any further manual operation.

The CTP-120PA can be used as a stand-alone unit or can be computer-controlled. It can be connected to a PC via the USB port. In computer-controlled mode, test records can be read from the CTP-120PA’s memory, or CT tests can be run from the PC. The CTP-120PA comes with the CTP PC software. The CTP PC software can be used to test a current transformer or voltage transformer directly from a PC, automatically generate test results, read test records from the CTP-120PA’s memory, and save test records in Word format.

The instrument is housed in a transportable box, which is provided with a cover and handles for ease of transportation.

Main Features

●Able to test Protection CTs, Measuring CTs, TP class CTs and inductive PTs

●Test excitation characteristic and error curve based on low-frequency measurement principle

●Measure ratio, polarity, ratio error and phase displacement error based on voltage method

●Capable of testing multi-ratio CTs automatically without the need for rewiring

●Adopt patented multifunctional rotary mouse to replace the keypad

●Adopt 5.7 inches LCD screen for display

●Adopt DSP, ARM and embedded LINUX operation system

●Both local test and PC remote test available

●Higher measurement accuracy: 0.05%

●Print test results directly by built-in thermal printer

●Small and light weight (9kg / 19.84 lbs) for easy transport

Technical Data

●Test Standard: IEC61869-2(IEC60044-1,60044-6), IEC61869-3(IEC60044-2), IEEE/ANSI C57.13

●Maximum Knee Voltage Measurement: 40kV

●Output Range:

voltage: 0~180V(RMS)

current: 0~12A(RMS), 36A(peak value)

●Voltage Measurement Accuracy: ±0.05%

●CT Ratio Measurement:

range:1~30000

accuracy: ±0.05%

●PT Ratio Measurement:

range:1~10000

accuracy: ±0.05%

●Phase Measurement:

accuracy: ±2min

resolution: 0.01min

●Secondary Winding Resistance Measurement:

range: 0~300Ω

accuracy: 0.1%±1mΩ

●Burden Measurement:

range: 0~300VA

accuracy: 0.1%±0.1VA

●Memory Capacity: >3000 groups test results

●Power Supply

●Environmental Conditions

●Miscellaneous

The portable and high precision current transformer analyzer CTP-120PA is a powerful tool for performing all tests of CTs and inductive VTs.