Huazheng HZCT-100A Transformer CT PT Analyzer Supplier

The Transformer CT PT Tester is a next-generation testing instrument for CT and PT, developed based on traditional transformer volt-ampere characteristic testers, ratio and polarity testers, and voltage regulators, voltage boosters, and current boosters. It was designed with extensive user feedback, thorough market research, and in-depth theoretical studies. The device features high-performance DSP and FPGA technology, advanced manufacturing processes, and ensures stable, reliable performance. It offers a complete range of functions, high automation, and high testing efficiency, making it one of the leading products in China. This instrument is a professional tool for testing transformers in the power industry.

I. Main Technical Characteristics

1.Comprehensive Testing Functions: The instrument offers a wide range of testing capabilities, meeting the requirements for excitation characteristics (V-I curve), ratio, polarity, secondary winding resistance, secondary load, ratio error, and angle error of various CTs (including protection, measurement, and TP classes). It can also test the excitation characteristics, ratio, polarity, and secondary winding resistance of various PT electromagnetic units.

2.Automatic Parameter Calculation: The instrument automatically calculates and provides parameters such as the inflection point voltage/current, 10% (5%) error curve, accurate limit coefficient (ALF), instrument security factor (FS), secondary time constant (Ts), residual magnetic coefficient (Kr), and saturation inductance.

3.Compliance with Standards: The instrument meets the testing standards of transformers, including GB1208 (IEC60044-1), GB16847 (IEC60044-6), GB1207, and others. The appropriate standard is automatically selected based on the transformer type and level.

4.Advanced Low-Frequency Testing: Based on an advanced low-frequency testing principle, the instrument can handle CT tests with inflection points up to 80 kV.

5.Square Wave Excitation: The instrument uses the internationally popular square wave method, which enhances the accuracy and smoothness of the excitation curve.

6.Data Storage: The instrument can store up to 3,000 test data sets without losing power.

7.Simplified Testing Process: Testing is simple and convenient, with a one-button function to complete CT direct resistance, excitation, ratio, and polarity tests. In addition, the same wiring setup is used for load testing of CTs.

8.Portability: Weighing approximately 7 kg, the instrument is easy to carry and transport.

II.Main Technical Parameters:

Input power voltage	AC 110V±10%，60Hz
Output	0~180V rms, 10A rms, 30A (peak)
Voltage measurement accuracy	Range: 0~200Vrms, precision: ± 0.1%
CT variation ratio measurements	Range: 1~40000, precision: ± 0.1%
PT variation ratio measurements	Range: 1~40000, precision: ± 0.1%
Phase measurement	Precision: ± 2min, resolution: 0.5min
Turbine resistance measurement	Range: 0~300 Ω, precision: 0.2% ± 2m
AC load measurement	Range: 0~1000VA, precision: 0.2%±0.02VA
Working environment	temperature:-20^οC~50^οC, humidity: 90%
Size, weight	Dimensions: 340 mm 260 mm 140mm, weight <7kg

Packing List

NO.	Item		Quantity
1	Test line	yellow	1
		red	1
		green	1
2	Ground lead		1
3	Power line		1
4	Large alligator clip	black	2
		green	2
5	Small alligator clip	black	2
		green	2
		Red	2
6	Print paper		4
7	Fuse pipe		4
8	Flash disk		1
9	Clamp		2