1.PD Free Power Frequency Test Transformer
2.Range of application:

• Applicable to the delivery test of voltage withstand and PD of HV power equipment in power equipment manufactory

• Applicable to voltage withstand and PD test of power equipment and electric security tool in HV hall of power plant
• Applicable to delivery and PD test of cable head in cable accessories factory

3. Successful cases on AC voltage withstand test of large-size power equipment by this system:
 

• Voltage withstand test of 220KV HV power equipment in HV test hall of Shang Luo power supply bureau, Shanxi

• Voltage withstand test of 110KV and below equipment in HV hall of Zhejiang electric power research institute

4.Main configuration of the system:

• Regular control station                1 set (capacity as per actual programme)
•   or PLC intelligent control system      (recommended for extra-high voltage, hyper-high voltage test)
• Electric voltage regulator             1 set (capacity as per actual programme)
• HV PD-free test transformer       1 set (configured as per voltage grade of power equipment)
• Compensating reactor        several (configured as per requirement)
• HV capacitive voltage divider       1 set
• Noise filter                                       1 set
• PD tester                                         1 set