GOZ-CR Lightning Pulse Capacitive Voltage Divider
GOZ-CR lightning pulse capacitive voltage divider is mainly used for lightning wave measurement, voltage measurement of power frequency and impulse high voltage, including lightning wave, 8/20us wave and other lightning waveform. Connected to network, it is also carried out online monitoring for the lightning overvoltage. As a special lightning wave divider, it has advantages such as simple operation, intuitive display, high precision, small size, light weight and so on. The divider is ideal equipment for lightning wave measurement, applied to grid primary equipment type test (such as zinc oxide arrester lightning steep wave test, e voltage transformer lightning full wav test, high voltage switch lightning full wave test, substation main transformer type test, high voltage GIS test, etc.), substation, high voltage electrical equipment manufacturing factory and high voltage laboratory and other departments. GOZ Technology can meet requirements like China State Grid Electricity Power Research Institute and other relevant authorities inspection, and issue a partial discharge ultrasonic positioning system test report.
GOZ-CR lightning pulse capacitive voltage divider can be connected to power grid long-term operation, which meets the following lightning pulse waveform monitoring: standard lightning impulse full waveform, standard lightning impulse chopped waveform, standard operation impact full wave voltage waveform, steepness >1000kV/μs waveform and steepness > 2500kV/μs waveform. When carrying out impact measurement, it can be used as load capacitance, and also composed of chopping equipment with chopping gaps combination.
Also called：Lightning high voltage pulse divider, lighting impact high voltage impulse divider, impact voltage impulse divider, overvoltage monitoring divider, resistive & capacitive voltage divider, capacitive divider
1. High voltage measurement range: 0 ~ 300kV / 0 ~ 400kV; max. is lightning impulse voltage;
2. Suitable for 1 ~ 35kV power distribution system high voltage transmission line lightning online monitoring;
3. Impulse bandwidth: 30MHz, lightning head response resolution < 100ns, that is <0.1us;
4. Secondary measurement interface: metal shield shell, 50Ω or 75Ω matched impedance, Coaxial cable connector output;
5. Primary high voltage side interface: all metal platen, connecting the electrical bus with fastening bolt; single-phase direct connection; 6:. ± 1%
6. Non-linearity degree：±1%；
7. Measurement uncertainty：±1%；
8. Outdoor operating environment: outdoor work, water-proof, moisture-proof, high temperature resistant, cold resistant and high altitude resistant; outdoor installation;
9. Needed to collect lightning over-voltage and power frequency overvoltage, while the working frequency range is 35Hz ~ 5MHz;
10. Long time network connects operation, with synthetic silicone rubber casing insulating housing. Meet on-line monitoring of lightning pulse waveform.
11. When used for frequency or DC measurement, it can continuously run two hours at the rated voltage.
12. Capacitor capacity and partial voltage ratio deviation range: ± 5%.
13. Capacitor dielectric loss tangent, pure capacitive voltage divider, under 20 ℃, 0.4-0.5UN, tgδ≤0.0025, while resistive voltage divider tgδ value is not specified.
14. Impulse voltage measuring divider and other components as a system, the square wave response should be consistent with requirements of GB311-83 4.4.2.
15. Above 1000m, or temperature and humidity out of the requirements of article 3, please customize or reduce the suing voltage.
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No.
|
Model
|
Rated voltage（KV）
|
Nominal capacitance（PF）
|
Rated partial voltage ratio
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Features & function
|
Altitude（mm）
|
Weight（kg）
|
|
1
|
100-1000
|
100
|
1000
|
200
|
Frequency, impact
|
600
|
14.5
|
|
2
|
200-60
|
AC-200
|
60
|
1000
|
Parallel resistance and capacitance, frequency, no halo
|
1200
|
28
|
|
3
|
200- 1000
|
AC- 200
|
1200
|
3000
|
Frequency measurement, no corona
|
1300
|
30
|
|
4
|
300-400
|
AC-300
|
400
|
1500
|
Frequency, impact
|
1800
|
39
|
|
5
|
400- 800
|
400
|
800
|
500
|
Low damping, Impact measurement
|
1400
|
34
|
|
6
|
250-500
|
250
|
500
|
1000
|
Frequency, Impact measurement
|
1760
|
38
|
|
7
|
500-1000
|
500
|
1000
|
1000
|
Impact measurement
|
1400
|
34
|
|
8
|
600-1000
|
600
|
1000
|
1000-2000
|
Impact measurement
|
1550
|
36
|
|
9
|
800-500
|
800
|
500
|
1000- 2000
|
Impact measurement
|
2250
|
42
|
|
10
|
800-600
|
800
|
600
|
1000-2000
|
Impact measurement, Chopping equipment
|
2200
|
52
|
|
11
|
1200- 400
|
1200
|
400
|
2000-3000
|
Impact measurement, Chopping equipment
|
3200
|
76
|
|
12
|
2400-500
|
2400
|
500
|
3000- 6000
|
Impact measurement, Chopping equipment
|
5660
|
140
|
|
13
|
300-500
|
AC-300
|
500
|
3000
|
Frequency measurement, no corona
|
2370
|
50
|
|
14
|
200- 1000
|
AC- 200
|
1000
|
1000
|
Frequency measurement
|
1650
|
40
|
|
15
|
250-1000
|
AC-250
|
1000
|
1000
|
Frequency measurement
|
2400
|
60
|
|
16
|
500-1000
|
AC-500
|
1000
|
1000
|
Frequency measurement
|
1300
|
180
|
|
17
|
750-0.001
|
750
|
1000
|
7500
|
Frequency measurement
|
5500
|
|
|
18
|
1000-0.0005
|
1000
|
500
|
10000
|
Frequency measurement
|
7500
|
|