HVHIPOT Inductance-Modulated Variable-Frequency Series Resonance Test Equipment

• Customization: Available
• Warranty: 1 year
• Rated capacity: 225kVA , customized
• Model NO.: GDTF(L)-225/25
• Input power supply: Single phase 380V; 50Hz
• Rated voltage: 25kV
• Rated current: 9A
• Transport Package: Standard Export Wooden Box
• Specification: ISO, SGS
• Trademark: HV Hipot
• Origin: Wuhan, China
• HS Code: 9030899090
• Production Capacity: 5000sets/Year

Product Description

Inductance-Modulated Variable-Frequency Series Resonance Test Equipment
 

Product Description

The system is specially designed for PD-free AC withstand voltage test for electric generator, capacitance of single phase to ground is 0.4-1.2uF, test voltage is no more than 24kV.


Working Environment

• Environmental temperature: -10ºC to 50ºC
• Related humidity: ≤ 90% RH
• Altitude: ≤ 1km

 

Technical Data & Functions

1. Rated capacity: 225kVA
2. Input power supply: Single phase 380V; 50Hz
3. Rated voltage: 25kV
4. Rated current: 9A
5. Working Frequency: Power frequency 50Hz
6. Output voltage Waveform distortion rate: ≤0.5%
7. Working time: continuous working of 15min under rated load.
8. Temperature rise: ≤65K after continuous working of 15min under rated load
9. Quality factor: Q ≥10 
10. Accuracy: 1.5% (RMS)
11. Protective function: over-current, over-voltage and flashover protections for test object.
12. Partial discharge amount: ≤5PC

Test Power Supply, L and Cx Relationship Table
 

Capacitance range of test object (Cx)	Adjustable range of reactor  (L)
0.4~1.2uF	8H~26H

 

Note: Cx is capacitance of test object.

 
PD-free AC power frequency withstand voltage test: adopts series resonant test device to make AC withstand voltage test and dielectric loss test for generator.
Reactor selection

Reactor	Rated capacitance (kVA)	Rated Voltage(kV)	Rated Current (A)	Capacitance range (uF)	Inductance range(H)
Adjustable reactor 1 set	225kVA	25kV	9A	0.4~1.2	8~26H

 
System Configuration
1. PD-free Excitation Transformer  GDJL-27kVA/3kV/0.4kV (1 set)
2. PD-free Isolation Transformer GDGL-27kVA/380V/380kV  (1 set)
3. PD-free Resonance Control Unit  GDTF-27kVA/380V (Including voltage regulator) (1 set)
4. PD-free Adjustable Reactor GDDK-225kVA/25kV    (1 set)
5. PD-free Capacitive Voltage Divider   GDFR-30kV    (1 set)