Basic Info.
Model NO.
GTU-800KVA/800KV
Core
Core-type Transformer
Winding Type
Acc to Customer Requirements
High Voltage Produced by Way
Step-up Transformer
Advantages
Safety.Convenience
Product Description
800 kV High voltage testing transformer
1.Application
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test,and for testing all GIS switchgears and GIS components such as insulators,insulating tension pole,GIS voltage transformer and so on,the PD test can be performed under the general environment because of the merits of encapsulation ,the PD level of our equipment can be lee than 3pC,and it can be added a HV bushing to perform the withstand voltage test at the same time.
2.Benefits
Small and compact dimensions resulting in minimum space requirements . Light-wight components. Rugged construction to withstand long transportation stresses. Direct flanging to the test object. High safety for tester because of encapsulation of all HV parts . Large range of application in conjunction with HV bushing for withstand voltage test. Built-in HV measuring capacitor and coupling capacitor. Built-in HV disconnecting switch to separate multipath test object connector to ensure the safety of HV testing.
3.Basic components
Column type voltage regulator(Frequency variable power source used in the GIS voltage transformer test system)
Insulating transformer type GLB
Compensating reactor type BLC
HV testing transformer type GTU
HV Capacitive divider type CDT
A basic test interface
Computerized control system type SBK
4 .Available Options
Coupling capacitor type OWF
Partial Discharge detectors
SF6 HV bushing and disconnecting switch
Various connection or adaptation flanges according to different test object
Universal adjustable platform for testing GIS switchgear.
Standard voltage transformer(Only for GIS voltage transformer testing system)
5.Function of the testing system
The encapsulated test transformer is a conventional transformer and steps-up the voltage coming from the regulating transformer.The compensating reactor connect with the HV transformer primary winding to compensate the capacitive current.(The HV transformer LV side have an independent compensating winding )
For the onsite testing system ,the voltage regulator,compensating reactor ,Isolating transformer and control system are integrated into a cabinet.This gives a most compact equipment with a minimum number of components to be transported and connected for testing.
Using HV disconnect switch to disconnect all type test object connector to achieve widely use.
Three-phase change-over switch to test three phase in box system.
Universal adjustable platform to make HV transformer flange test object more conventional
6.Technical paremeters of the equipment
Voltage grades
200-1200KV
Current
0.5-4A
Capacity
100—4000kVA
Input voltage
0.35—10kV
Impedance voltage
Less than 6%
Partial-discharge
rated voltage≤5pc (common circumstance)
Temperature rise
less than 65K (50HZ)
Operating frequency
50—200Hz
Accuracy of measurement
±1%
Annual Insulating gas leakage
Less than 0.5%
Address:
C17-2, Huading Idustrial Park, Hannan District, Wuhan, Hubei, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Instruments & Meters
Company Introduction:
Our company supplys different kinds of products. High quality and favaroble price. We′re pleased to get your Inquiry and we will come back to as soon as possible. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with good quality at the reasonable price.