Scope
The generator is sutable for 35KV and below 35KV voltage level standard full-wave lightning impulse voltage test of large capacity power transformers, transformers, reactors, arrester, switch, casing, insulator and other test materials.
The generator used for the indoor environment, the environment temperature -10 ºC ~ +40 ºC, relative humidity less than 90%, not more than 1000 meters above sea level, insulation surface should be dry, dry after the generator can be used normally.
Rated parameter values:
1. Rated voltage 300KV
2. Voltage class rating: 100KV
3. Rated energy 12KJ
4. Total Impulse capacitance: 0.26UF
5. Single pulse capacitor 1.56. ΜF/50KV × 2, 3 sets)
6. Load capacitance 500 ~ 30000PF
7. Measured output impulse voltage waveform
1). 1.2/50us full-wave lightning impulse voltage, voltage efficiency >85%
2). 100/1000; Operating wave, voltage efficiency >70%, impulse voltage waveform parameters and their deviations are in line with the IEC and GB311-97 State standards.
3). Working continuous time: Continous running if charging and discharging 1 time every 90 seconds over 2/3 rated voltage; Continous running if charging and discharging 1 time every 45 seconds under 2/3 rated voltage.
Construction:
1. The charging components:
1) Constant Voltage charging device;
2) Insulation tube immersed charging transformers, transformers good seal, no leakage of oil.
3) 2DL-100kV/100mA silicon high-voltage rectifier stack;
4) High-voltage silicon rectifier stack protection resistors enameled resistance wire wrapped around the insulation felt close drum;
5) Asymmetric double voltage charging
6) Constant current charging device: Within 20% to 100% rated charge voltage range, the actual charging voltage and tuning voltage deviation ≤ ± 1%, charging voltage instability ≤ ± 1%, adjustable charging voltage accuracy: 1%.
7) DC resistance divider with 100kV, 200 megohm metal resistors immersed. Low-voltage arm resistance installed in the divider bottom flange, the low voltage signal arm with shielded cable into console.
8) Automatic ground switches solenoid points and ground agencies, testing stops automatically when the main capacitor through the protection resistance grounding.
2. Main body parts:
1) Main Body uses asymmetry double pressure charging, Rated voltage 100kV.
2) Main Body including 3 sets of MWF1.56μF/50KV × 2, iron shell immersed pulse capacitor, potential resistance, charging resistor, wave peak resistance, wave rear resistance and the fireball.
3) The first stage of the bilateral differences ball polarity triggered a three-second gap to the three fire ball gap, simultaneous malfunction rate or refusal rate ≤ 5%.
4) Ball gap distance in a straight line from the motor-driven adjustment, console instructions corresponding to charge the ball away from pressure, transmission structure with upper and lower limit switches.
5) Ball gap distance can be adjusted manually on the console.
6) 300kV impulse voltage generator body about 2 meters high, the body part of the frame with wheels to facilitate free movement.
3. Divider:
Divider capacitor discharge waveform and voltage measurement.
4. Constant current charging console (Controller):
1). Charging equipment automatically grounding and automatic discharge ground
2). Manually adjust theFireball gap distance.
3). Constant voltage charging
4). Charging voltage manually adjust
5). Manual issued by the ignition pulse 6). Manually ring alarm
7). Over Current / automatic protection
Console instructions
1) Charging transformer input current direction
2) Charging input voltage transformer instructions
3) Tuning voltage digital voltmeter instructions
4) The first stage capacitor charging voltage digital voltmeter indication
5) The fireball gap direction
5. Measuring Equipment:
DTS1012B digital oscilloscope.
Accessories
1.High performance 100 times specialized attenuator 2 pcs
2.Isolation filter shielding design
3.Wave head resistance 3 groups
4.Wave tail resistance 3 groups
Standard
1.IEC 60060-1
2.IEC 60076-3
3.IEC 62271-1
4.IEC 62271-200
5.Test transformer (JB / T9641-1999)
6.GB1094-2003 power transformer
7.GB / t509-1997 power transformer test guide
8.DL / t596 / 1996 code for preventive test of electric power equipment
9.GB311.1-1997 insulation coordination of high voltage transmission and transformation equipment
10.GB / t16927.1-1997 high voltage test technology general test requirements
11.GB / T16927.2-1997 high voltage test technology measurement system Digital recorder for high voltage impulse test
12.ZB F24 001-90 implementation rules for impulse voltage measurement
13.GB191 packaging and transportation marks
14.JB / t563 technical conditions for ordering coupling capacitors and capacitor voltage dividers
15.GB4208 enclosure protection level
16.GB813-89 oscilloscope and peak meter for impact test
17.GB7449-87 test guide for lightning impulse and operation impulse of power transformers and reactors
18.JB / T501 power transformer test guide
19.Transformer test technology (JB / t501-1991)
20.IEC60-1 and IEC60-2 high voltage test technology
21.GB50150-91 standard for hand over test of electrical equipment in electrical equipment installation engineering
22.DL / T557-94 high voltage line insulator steep wave impact test, definition, test method and criteria
23.DL / T 848.5-2004 general specification for high voltage test equipment Part 5: impulse voltage generator
24.DL / T 846.1-2003 general specification for high voltage test equipment Part 1: high voltage divider measurement system
25.DL / T 846.2-2004 general specification for high voltage testing equipment Part 2: impulse voltage measuring system
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