1. Scope of application
This generator is suitable for standard lightning impulse voltage full-wave test of 35KV and below air gaps, reactor switches, insulator strings, bushings, power transformers and transformers.
2. General Conditions of Use
Altitude: 1000m
Ambient temperature: -5℃～＋40℃
Relative humidity: 90%
Maximum daily temperature difference: 25℃
Use environment: indoor
No conductive dust
No fire and explosion hazard
Does not contain gases that corrode metals and insulation
The waveform of the power supply voltage is an actual sine wave, and the waveform distortion rate is less than 5%
3. Follow the standard
GB/T 311.1 Insulation and coordination of high-voltage power transmission and transformation equipment
GB/T 16927.1 High Voltage Test Technology Part 1 General Test Requirements
GB/T 16927.2 High Voltage Test Technology Part II Measurement System
GB/T 16896.1 Digital recorder for high voltage impulse test
JB/T 7616 High-voltage line insulator steep wave impulse withstand test
DL/T 557 High Voltage Line Insulator Steep Wave Impulse Test, Definition, Test Methods and Criteria
ZBF 24001 Implementation Rules for Impulse Voltage Test
4. Rated parameter value
1. Nominal voltage: 300kV
2. Rated voltage: 100kV
3. Nominal energy: 7.5kJ
4. Total shock capacitance: 0.166 microfarads (single pulse capacitor 1.0 microfarads/50kV, 6 units in total).
5. The total number of stages: 3
6. Standard waveform parameters:
(1) Standard lightning impulse voltage full wave, 1.2/50s voltage utilization factor>85% (more than 90% when no-load 300PF);
The impulse voltage waveform parameters and their deviations meet the requirements of relevant national GB311 and GB16927 standards.
7. The minimum output voltage is greater than 10% of the nominal voltage
8. Duration of use: Above 70% of the rated voltage, it can run continuously by charging and discharging once every 120 seconds, and below 70% of the rated voltage, it can run continuously by charging and discharging once every 60 seconds.
