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AJVLF ultra low frequency high voltage generator

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Contact number:
13016458318    027-85824876
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:

57286187@qq.com
 

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AJVLF ultra low frequency high voltage generator

The AJVLF ultra-low frequency high-voltage generator 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.
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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武汉港联电气成套设备有限公司

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Add:Room 01, 3 / F, building 4, daijiashan science and Technology City, 888 Hanhuang Road, Jiang'an District, Wuhan City