Remark: English version is available. Different models are available.
Power quality means the AC power quality of user's end that is supplied by utility grid. When the power quality is interfered and polluted, people need to find the causing reasons and improve the power quality to get rid off unsafe hidden danger.
Main Technical Parameters
1. Input characteristics
(1)Voltage measurement range: 20~800V, auto switch
(2)Current measurement range:
Clamp type mutual inductor(3 kinds): 5A/25A(standard)
100A/500A(Optional)
400A/2000A(Optional)
(3)Phase angle measurement range: 0~359.99°
(4)Frequency measurement range: 45~55Hz
(5)Voltage channels: 3 channels(U
A, U
B, U
C )
(6)Current channels: 3 channels(I
A, I
B, I
C )
(7) The max resonance wave analyze times: 63 times
(8) 1 minute interval maximum continuous reserve period: 18 months
2. Accuracy
(1)Power parameters measurement part:
Voltage: ±0.1%
Frequency: ±0.01Hz
Current, power: ±0.5%
Phase position: ±0.2°
(2)Power quality part:
Fundamental wave voltage permitted error: ≤0.5%F.S.
Fundamental wave current permitted error: ≤1%F.S.
Fundamental wave voltage and current phase gap measurement error: ≤0.2°
Resonant wave voltage content rate measurement error: ≤0.1%
Resonant wave current content rate measurement error: ≤0.2%
Three phase voltage unbalance degree error: ≤0.2%
Voltage deviation error: ≤0.2%
Voltage Changing error: ≤0.2%
3. Working temperature: -10ºC~ +40ºC
4. Charge power: AC220V, frequency 45Hz~55Hz
5. Host power consumption: ≤3VA
6. Battery max working time: ≤10 hours
7. Insulation:
(1) Voltage, current inputing port as to house insulation resistance ≤100MΩ
(2) Working power input port as to external house withstand power frequency 1.5kV(Valid value)
8. Dimension: 258x158x58mm
9. Weight: 1.5kg
Main Features
1. The tester is specially used to detect the wave distortion, resonant wave content, three phase unbalance and other power quality problems. At the same time, it can also used to test the power parameter, analyzing vector.
2. Accurately test the voltage, current, service power, no-service power, phase angle, power factor, frequency and other power parameters.
3. Can display the tested voltage and current's vector diagram, users can analyze the vector diagram to judge if the connection is right.
4. Can analyze the frequency error, voltage error, 3 phase voltage permitted unbalance degree and electric grid resonant wave.
5. Can display single phase voltage, current waveform and 3 phase voltage and current waveform.
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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