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VLF Hipot Tester-30kV/5mA

Post Time : 2012-11-14
  • Item Num :
  • EGVLF-30
  • Shipping Port :
  • Shanghai Port
  • Brand Name:
  • EGHV
  • Size:
  • 34
  • Color:
  • red
Product Details

 


EGVLF-30    Very Low Frequency  Hipot Tester      

(Light Portable Type)



1. General Description

>  Input voltage                     AC220V±5%50/60Hz                

>  Output AC voltage            30kV Peak

>  Output frequency               0.1Hz, 0.05Hz, 0.02Hz                     

Measurement Accuracy     3%; 3%peak errors

>  Wave form distortion          ≤5% 

Working condition               Temperature: -10℃∽+40, Humidity: ≤ 85RH (indoor&outdoor)




2. Application:

 This tester is suitable for AC Voltage Withstand test of cables, transformers,switchgear, rotating machinery and other 

electrical apparatus. 0.1Hz to 0.02Hz is considered to be very low frequency(VLF), used in an AC hipot tester. 

 Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. Under 0.1 Hz 

output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to a capacitive load, like a long 

cable.


3. Features

>If the output voltage exceeds the limit preset by the user, the instrument will shut itself down within 20ms.

>Overcurrent protection on both high and low voltage sides, so automatic protection can be made according to the set limit

of low and high voltage.

>Using high & low voltage closed loop negative feedback control circuit, so there is no capacitive rise effect in the process

of output.

>A high voltage output protective resistor is provided in the voltage boost body, so there is no need to connect resistor outside.

>microprocessor controlled, and automatic functions for setting-up, setting-down, measuring and protecting. 

>As a split/integrated type equipment in accordance with customer’s requirement, we try to customize it small, lightweight,

and portable with the adoption of advanced electronic technique 

>Output waveform can be clearly displayed on the large LCD, and test report can be printed by built-in thermal printer easily.


4.Main Parameters Table

Model

EGVLF-30

Output Mode

Single Connect Or Series Connect

Load Capacity, VLF

Up to 5.5uF at reduced frequency

VLF Test Frequencies

0.1Hz@1.1µF, 0.05Hz@2.2µF, 0.02Hz@5.5µF

Size&Weight

Controls: 360mm x250mmx 210mm6kg

HV Tank: 325mm x175mm x 385mm, 25kg

Equipment Accessories 

(available upon request)

Discharge rod x 1

Capacitor x 1

high voltage wire x 1 (7.6m)

Low voltage wire x 1 (2.5m)

Ground Cables x 1

interconnect cable x 1 (2m)

Accessories Weight: 15 kg

N.W./G.W.

46kg/63kg

Packing

Material: Wooden case

526mm x 446mm x 801mm , 17kg

 

 

 

 

 

 

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