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CONTACT US
Contact number：
13016458318 027-85821963
Company address：Room 01, 3 / F, building 4, daijiashan science and Technology City, 888 Hanhuang Road, Jiang'an District, Wuhan City
After-sale service：
18971110046
E-mail：
AJVLF ultra low frequency high voltage generator
Product description
Parameters
Overview:
AJVLF ultra-low frequency high voltage generator is a combination of modern digital frequency conversion advanced technology, using microcomputer control, boosting, bucking, measurement, protection is fully automated, and manual intervention can be performed during the automatic boosting process.
- Small size and light weight
-Large screen LCD display
- Clear and intuitive, and can display the output waveform
-Printer output test report
is a combination of modern digital frequency conversion advanced technology, using microcomputer control, boosting, bucking, measurement, and protection are fully automated, and manual intervention can be performed during the automatic boosting process. Because the instrument is fully electronic, it is small in size, light in weight, large-screen LCD display, clear and intuitive, and can display output waveforms and printer output test reports.
The design index of AJVLF ultra-low frequency and high voltage generator is in full compliance with the “General Technical Requirements for Special Testing Instruments for Power Equipment”.
Product nicknames: ultra-low frequency high voltage generator, 0.1Hz ultra low frequency high voltage generator, programmable ultra low frequency high voltage generator, ultra low frequency AC high voltage test device, ultra low frequency withstand voltage test device
Features:
1. Current, voltage, and waveform data are all directly obtained through high-voltage side sampling, so the data is true and accurate;
2. Overvoltage protection: When the output exceeds the set limit voltage value, the instrument will shut down for protection, and the action time is less than 20ms. ；
3. Overcurrent protection: designed for high and low voltage double protection, the high voltage side can be refined according to the set value;
4. Confirm shutdown protection; when the current on the low-voltage side exceeds the rated current, shutdown protection will be performed, and the action time is less than 20ms;
5. The high-voltage output protection resistor is designed in the booster body, so there is no need to connect a protection resistor outside;
6. ??Because of the high and low voltage closed-loop negative feedback control circuit, the output has no capacity increase effect.
technical parameter:
|
Item
|
Technical parameters
|
|
|
Output frequency
|
0.1Hz, 0.05Hz, 0.02Hz
|
|
|
Load capacity
|
0.1 Hz maximum 1.1µF
0.05 Hz maximum 2.2µF
0.02 Hz up to 5.5µF
|
|
|
Measurement accuracy
|
3%
|
|
|
Voltage positive and negative peak error
|
3%
|
|
|
Voltage waveform distortion degree
|
5%
|
|
|
Conditions of Use
|
Temperature
|
-10℃∽+40℃
|
|
Relative humidity
|
85%RH
|
|
|
Power
|
AC 50 Hz, 220V 5%
|
|
Ultra-low frequency parameters of different specifications:
|
Model
|
Rated voltage
|
Load capacity
|
Power fuse
|
Weight
|
Purpose
|
|
AJVLF-30/1.1
|
30kV
(Peak) |
0.1Hz,≤1.1µF
|
10A
|
Controller: 4㎏
Booster body: 25㎏ |
10kV cable
Generator |
|
0.05Hz,≤2.2µF
|
|||||
|
0.02Hz,≤5.5µF
|
|||||
|
AJVLF-50/5
|
50kV
(Peak) |
0.1Hz,≤5µF
|
55A
|
Controller: 5㎏
Booster body: 55㎏ |
Used for cable fault burn through
|
|
0.05Hz,≤10µF
|
|||||
|
0.02Hz,≤25µf
|
|||||
|
AJVLF-80/1.1
|
80kV
(Peak) |
0.1Hz,≤1.1µF
|
30A
|
Controller: 5㎏
Booster body: 45㎏ |
35kV cable
Generator |
|
0.05Hz,≤2.2µf
|
|||||
|
0.02Hz,≤5.5µf
|
Single-phase ground capacity of different generators:
|
|
Thermal power
|
Hydropower
|
|||||
|
Generator capacity
(MW)
|
200
|
300
|
600
|
85
|
125-150
|
300
|
400
|
|
Single phase-to-ground capacitance (µF)
|
0.2-0.25
|
0.18-0.26
|
0.31-0.34
|
0.69
|
1.8-1.9
|
1.7-2.5
|
2.0-2.5
|
Electric capacity of XLPE insulated single-core power cable (µF/km):
|
Sectional electrowinning mm2
µF/Km
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
240
|
270
|
|
Voltage10kV
|
0.15
|
0.17
|
0.18
|
0.19
|
0.21
|
0.24
|
0.26
|
0.28
|
0.32
|
0.38
|
-
|
|
Voltage35kV
|
-
|
-
|
-
|
0.11
|
0.12
|
0.13
|
0.14
|
0.15
|
0.16
|
0.17
|
0.19
|
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Add：Room 01, 3 / F, building 4, daijiashan science and Technology City, 888 Hanhuang Road, Jiang'an District, Wuhan City
