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On-load Tap-changer TesterCurrent Location:Home > PRODUCTS

HZYA-3Z on load tap changer test equipment of power transformer


The on-load tap-changer is the only moving part connected to the transformer circuit. Therefore, the detection of the on-load tap-changer is becoming more and more important. In the "power equipment transfer and preventive test procedures", asked to check the on-load tap-changer action sequence, measurement switching time. The instrument is mainly used to measure the transformer on-load tap-changer transition waveform, transition time, the instantaneous transition resistance, three-phase synchronization and so on.

The instrument is highly intelligent, all Chinese menu prompts, simple operation. Instrument small size, light weight, anti-interference ability, greatly reducing the labor intensity of the site staff, is the power supply units, transformer manufacturing industry to ensure safe production, improve product quality ideal instrument.


Large output current, light weight

Test YO, Y, △ type transformer, the resistance unnecessary to be converted but directly display

With winding or without winding measurement

Waveform display automatically adjusts the resistance according to the sampled value, the time value amplitude

With perfect protection circuit, reliability and strong

7-inch large LCD display, easy on-site operation

Built-in high-capacity lithium battery(optional)

500 sets of data can be saved in Internal automatically, can connect with U Disk.

III.Technical Parameters

Output current: 2.0A1.0A0.5A0.2A

Measuring range Transition resistance: 0.5Ω5Ω(2.0A)    2Ω20Ω(1.0A)   

40Ω(0.5A)     20Ω100Ω(0.2A)

Transition time: 0 ~ 320ms
Open circuit voltage: 24V
Measurement accuracy Transition resistance: ± (5% reading ± 0.1Ω)
                     Transition time: ± (0.1% reading ± 0.2ms)
Sampling rate of 20kHz
Storage mode U disk storage
Dimensions: 340mm × 245mm × 210mm
Instrument weight: 7kg

Hebei HuanHai Import And Export Trading Co., Ltd. All rights reserved Ji ICP Bei no.19028693-1
Tel/Wechat/Whatsapp:+86-18331100093 Email:sales02@electric-hz.com