Electronic (Digital) CT &PT Calibrator HEWD-2A

Technical Parameters

Main Features

1. Digital output error test of electronic (digital) CT/PT

1) Ratio and phase error test

2) Compatible with the protocol IEC61850-9-1,IEC61850-9-2,IEC61850-9-2LE and IEC60044-FT3

3) Compatible with various optical fiber interfaces

4) Holography analysis of message of IEC61850-9-1/IEC61850-9-2

5) Recording error data of test point and data inquiry/store/print by software

2. Analog output error test of electronic (digital) CT/PT and conventional CT/PT

1) Ratio and phase error test of digital CT/PT

2) Ratio and phase error test of conventional CT/PT by converting into voltage signal through

standard converter

3. Up to test 0.2S class digital CT/PT

4. Analog of small signal output

5. Harmonic wave analysis of input signal of digital CT/PT under test, generation of spectrum curve,

record of content of each time harmonic (up to 50times harmonic), and calculation of harmonic distortion.

6. RMS value parameters analysis (amplitude, phase, frequency and etc) of input standard signal

7. Real-time displaying output waveform, standard signal waveform, polarity, sync status and percentage

value under test point of CT/PT under test

8. Polarity and time-delay test of digital CT/PT by using inbuilt PPS (pulse per second) and B code

to output sync signal

9. Operation by tablet through APP software (optional)

10. EMC compliance with standard IEC60044-8

11. PC software

1) Friendly HMI and clear interfaces

2) Automatically save test data and generate test report

Zhengzhou Great Electric Co.,Ltd, established in 2011, is a fast growing company in Zhengzhou, Henan Province, in the same year, Henan Muchen Trading Co.,Ltd was founded as our export sales company, taking charge of all export deals.

We specialize in production & supply of high-quality products for power field, high voltage field, power lab, etc. Our major products includes: meter test equipment, transformer test equipment, high voltage test equipment, relay test equipment, instrument transformer…etc.

After ten years’ efforts and focusing on products improvement, our solution & offer can compete with some major competitors from Europe and US, such as Zera, MTE, Radian…etc, just as a result, we setup strong relationship with our partners in some countries like Brazil, India, Vietnam, Bangladesh, South Africa, Paraguay, Colombia, Israel, Uzbek, Malaysia, Indonesia….etc

Together with our partners in overseas countries, we won many projects and also we are winning.

We offer technical and commercial assistance to our customers, serving them to maintain their time and cost schedules; we offer valuable solution and help our partners to win with excellent quality with competitive prices and good after sales service; we are devoted to develop and setup partnership with our clients to get one win-win.

Our management team and experienced staff are committed towards meeting our client’s specific objectives by offering valuables.

Our mission is: Focus on power field, basing on technology and innovation, providing valuable solution, grow together with our partners in the world.

Welcome to visit us and we are here ready to provide all the necessary assistance you want, sincerely hope we can have good chances to work together and setup long term cooperation relationships.