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ZXHQ-T High-speed Multi Transformer Verification Device

ZXHQ-T High-speed transformer verification device is a new generation of transformer verification device developed by our company. The design idea of virtual instrument is adopted. The user only needs to operate the virtual instrument interface on the computer screen through the mouse and keyboard to input the transformer type, range, accuracy level, capacity, power factor and other parameters can complete automatic testing of current transformers and voltage transformers, as well as analysis, calculation and database management of test results, and can be printed according to user needs various records and certificates. 

Features
Technical indicators

1. Environmental conditions

1) Temperature: 5 ℃ ~ 40 ℃

2) Relative humidity: <80% (25 ℃)

3) Altitude: <2500m

4) Power frequency: 50Hz ± 0.5Hz

5) Power supply voltage: 220V ± 5V

2. Measuring range

1) In-phase component (%): 0.0001 ~ 200.0 Resolution: 0.0001

2) Orthogonal component (minutes): 0.001 ~ 999.9 Resolution: 0.001

3) Impedance (W): 0.0001 ~ 60.0 Resolution: 0.0001

4) Admittance (ms): 0.0001 ~ 60.0 Resolution: 0.0001

3. Basic error

1) In-phase component: DX = ± (X × 2% + Y × 2% ± 2 words)

2) Quadrature component: DY = ± (X × 2% + Y × 2% ± 5 characters)

"X" "Y"-display value of the instrument

"5 words"-quantization error of the instrument

3) Dial indicator: level 1

4. Working range

1) Current: (1% -149%) In (In = 5A); (5% -149%) In (In = 1A)

5. Workload:

1) Current: To vs Tx <0.12Wcosj = 1

6. Polarity error indication

1) When the error is over 5% of the rated working current and the error exceeds 180%, there should be a polarity indication.

     Note: If it is more than 10% of the rated operating current, the polarity indication should not appear, indicating that the software is faulty, please do not increase the current, so as not to burn the instrument.

7. Variable ratio error indication

1) When the rated working current is more than 5%, and the error exceeds 30% but less than 180%, there should be a ratio error indication.

8. Insulation and withstand voltage test and description

1) Terminal Tx and ground terminal communicate

2) Both the K and D terminals are disconnected from the ground terminal

3) The power socket can withstand 1.5kV and 1min withstand voltage to the shell

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