Home | Contact |   News
+86-29-62393719
Index>TESTING FACILITY>HV AC Dielectric Test

HV AC Dielectric test transformer

 General Conditions:

- Altitude: 1000m

- Ambient Temperature: -10oC45oC

- Relative Humidity: 90% RH (at 25 oC)

- Max. Daily Temp. Difference: 20 oC

- Atmospheric Pressure: 0.1MPa

- Atmospheric Humidity: 11g/m3

- Anti-earthquake Degree: 7 Class

-Operating Site: Indoor

Product Description

Special Conditions

- Without electric dust at site

- Without firing & explosion danger at site

- Not existed for corrosive metals & insulated gas

- Waveform of power supply voltage is sine actually, and the waveform distortion rate is 3%

- Set a reliable earthing section, and its earthing resistance is 0.5 ohm

 The site background of Partial Discharge should less than 3 PC.

 

2. followed Technical Standard:

GB/311.1-1997    Insulation of HV Transmission & Distribution Equipment

GB/T16927.1-1997    HV Testing Technique, Part I General Testing Conditions

GB/16927.2-1997      HV Testing Technique, Part II Measuring System

JB/T9641-1999   Testing Transformers

GB/T7354-1987  Measurement of Partial Discharge

GB2536-1990         Transformer Oil

JB/T8169-1999       Coupling Capacitor and Capacitive Divide

 

3. Main Equipment of the System:

 

No.

Item

Qty (set)

1

Type YDTW-250kVA/250kV Power   frequency no Partial Discharge testing transformer

1

2

Regulator, Type TYDZ-100/0.38/00.65

1

3

Capacitance Divider (double as Coupling   Capacitor), TRF250-0.0005

1

4

Protection Resistance, Type GWR250-2.5-1

1

5

Switch Cabinet, Type PGL-1

1

6

Compensating reactor YDGK-3*75/0.6

1

7

manual control console Type AC-2010

1

8

Measurement and Control Cable,   earthing bar as the spare parts will be supplied by seller.



Contact Us
Message:
E-mail:
Name:
TelePhone:
Validate Code:  
Cemail

Copyright © CNME International CO.Ltd Powered by QingSui Links: www.cnme-en.cecep.cn