CT PT Transformer Characteristics Test Equipment for Excitation/Knee Point Value Testing

Brief Introduction
Mutual inductor is mainly used for protective, calculated kinds of CT/PT for the auto testing. Widely applied for lab or on-site detecting programs.

Main Testing Functions

CT(protective, calculated kinds)	PT
Volt-ampere characteristic(excitation characteristic) curve	Volt-ampere characteristic(excitation characteristic) curve
Show knee point value automatically	Show knee point value automatically
Show 5% and 10% error curves automatically	Turn ratio testing
Turn ratio testing	Polarization diagnosis
Ratio difference testing	Ratio difference testing
Phase position(angle difference) testing	Phase position(angle difference) testing
Polarization diagnosis	AC withstand voltage testing
Primary injection testing	Secondary load testing
AC withstand voltage testing	Secondary winding testing
Secondary load testing	Iron core demagnetization
Secondary winding testing
Iron core demagnetization

Main Technical Parameters

Items	Parameters
Working power	AC220V±10%, 50Hz
Output	0~1000Vrms, 5Arms(20A crest)
	Remark: 0~5A is real value, greater than 5A~20A is calculated value
Large current output	0~600A
Excitation accuracy	≤0.5%(0.2%*reading + 0.3%*measurement range)
Secondary winding resistance testing	Range:  0.1~300Ω
	Accuracy: ≤0.5%(0.2%*reading + 0.3%*measurement range)
Secondary real load testing	Range: 5~1000VA
	Accuracy: ≤0.5%(0.2%*reading + 0.3%*measurement range) ± 0.1VA
Phase position(angle error) testing	Accuracy: ±4min
	Resolution: 0.1min
Ratio difference	Accuracy: 0.05%
CT turn ratio testing	Range: ≤25000A/5A(5000A/1A)
	Accuracy: ≤0.5%
PT turn ratio testing	Range: ≤500kV
	Accuracy: ≤0.5%
Working conditions	Temperature: -10ºC~40ºC
	Humidity: ≤90%
	Altitude: ≤1000M
Dimension	410mm X 260mm X 340mm
Weight	≤22kg

Main Features of The Tester
1. Support CT & PT testing.
2. No need to connect other assitant devices, the stany-alone can complete all the testing items.
3. With microprinter, can print on-site testing results immediately.
4. Adopts intelligent controller, easy to operate.
5. Large LCD screen, Graphically show the interface.
6. Show CT/PT(excitation) knee point values automatically.
7. Show 5% and 10% error curves automatically.
8. Reserve 3000 groups testing datas, won't loss under power off.
9. Support U-disk transfer reserved datas, read datas by standard PC and generate WORD report.
10. Portable, less than 22kg, convenient for on-site testing.

Company Profile:
Wuhan Hezhong Electric Equipment Manufacture Co., Ltd is a high-tech enterprise professionally engaged in R & D, manufacture and marketing of power testing products, instruments, power industry automation systems for 20 years.We export completed set to Korea, Singapore, Vietnam, India, Ecuador, Paraguay, Pakistan, Philippines, Russia, Italy, Austria, Portugal, Chile such as PD test system, impulse voltage generator, temperature rising test system, transformer comprehensive test system, cable fault detect system and varies of instruments for transformer, circuit breaker, switchgear, lightning arrestor, insulator, cable, battery, SF6 gas and so on.

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