Automatic Instrument Transformer Test Set

Model: CTP-120PA

Automatic Instrument Transformer Test Set CTP-120PA is a portable and multifunctional test kit for testing both current transformers and voltage transformers in their equipment configuration, such as being mounted in transformers, oil circuit breakers or switchgear. It is necessary for the equipment to be completely isolated from the electrical system.

With a one-click button, the CTP-120PA performs a CT saturation test and calculates the rated knee point in compliance with either IEEE C57.13.1, IEC 60044-1, IEC 60044-6 or IEC 61869 on both standards as well as of specialized CTs such as PX, TPS, TPX, TPY and TPZ. The saturation test can test knee point up to 40 kV. This allows testing even the larger generation class CT with a portable instrument.

Many substations CTs include a multi-ratio secondary, therefore the CTP-120PA has the ability to plot and simultaneously display up to 6 CT saturation curves.

As part of a regular maintenance program to verify factory readings and locate the presence of defects in voltage transformers, the CTP-120PA can accurately measure the ratio, polarity, excitation characteristic and secondary winding resistance.

Main Features

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

●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-inch 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 %

●Maximum knee voltage measurement 40kV

●Able to perform secondary burden tests

●Automatic demagnetization of CT

●Print test results directly by built-in thermal printer

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

Technical Data

●Test Standards: 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

●Safety Standards, Electromagnetic Compatibility

During operation and routine DC winding resistance testing, it is possible for a CT to become magnetized. The Automatic Instrument Transformer Test Set CTP-120PA includes an automated CT demagnetization function, which allows determination of accurate knee point and ratio thus providing stable, repeatable test results, and reduces test time.

HAOMAI ELECTRIC TEST EQUIPMENT CO.,LTD, as a subsidiary of HAOMAI ELECTRIC POWER AUTOMATION CO.,LTD, located in Shenzhen of China, mainly focuses on the sales and services of Protection Relay Test Set, Instrument Transformer Test Set, CT/PT Analyzer, Power Transformer Test Set, Circuit Breaker Testing Equipment, Battery Testing Equipment, IEC 61850 Testing Equipment for Smart Substation, Partial Discharge Detector, Transformer Oil Dissolved Gas Analysis and Moisture Monitor etc. electrical test equipment and online monitoring equipment.

The headquarters, HAOMAI ELECTRIC POWER AUTOMATION is established in 1999 and located in Wuhan of China, which is specialized in developing and manufacturing electrical test equipment and online monitoring equipment. HAOMAI products are widely used in power grid, petrochemical, metallurgy, railway, coal mine, research institutes and all kinds of large-scale factories or enterprises.

HAOMAI follows total quality criteria, and always maintains standardized process and procedures for continuous growth. HAOMAI has been certified by ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018. All of HAOMAI products passed Type Test or Calibration in the third party laboratory accredited under ISO/IEC 17025.

HAOMAI builds own RELAYSTAR laboratory and performance test laboratory, and possesses professional production equipment and testing instruments in factory, such as Agilent 34401A 6 1/2 High-precision Meter, FLUKE Multi-meter, EMH Standard Meter, CLOU Standard Power Source, Oscilloscope, Phase Meter, Insulation Test System, High Voltage Dividers, AC High Voltage Generator, Time Calibration Tester, Standard Micro-resistance etc.

HAOMAI is China well-known mark recognized and approved by State Administration for Industry & Commerce of People's Republic of China, and enjoys high reputation in domestic and foreign markets.

HAOMAI now is the key supplier for SGCC(State Grid Corporation of China) and CSG(China Southern Power Grid). Till 2021 HAOMAI products have been sold to 39 different countries.

HAOMAI always sticks to the faith of "cooperation and sharing", takes the "technology and market" as the direction, "creation and innovation" as the soul, listens to clients carefully, and improves the technology, upgrades the products, optimizes the service and tries all to be the global leader in electrical test and measurement instruments field.