●Product introduction
Product name: Series resonance without partial discharge modulation
Product specifications: XSN (XZ) -225kVA/25kV
Applicable test product: generator
Test product range: AC withstand voltage test without partial discharge of generator
Product function and function: ①Help customers to achieve preventive AC withstand voltage test and handover AC withstand voltage test of various tested products; ②Test cross-linked rubber and plastic power cables, power transformers, GIS, transformers, insulators, generators AC withstand voltage test of insulation withstand various overvoltages and capacitive loads of the tested product such as switches.
Product nicknames: series resonance withstand voltage test equipment, AC withstand voltage test equipment, inspection resonant booster device, series resonance withstand voltage tester
Test object: AC withstand voltage test without partial discharge of the generator, the highest test voltage does not exceed 24kV, and the single-phase ground capacitance is 0.4-1.2uF
The relationship between test power supply and L and Cx (Cx is the capacitance of the tested product): the capacitance range of the tested product (Cx) is 0.4~1.2uF, and the adjustable range of the reactor (L) is 8H~26H;
●Technical parameters
Main technical parameters and functions of the system
Rated capacity: 225kVA;
Rated voltage: 25kV;
Rated current: 9A;
Working frequency: power frequency 50Hz;
Distortion rate of output voltage waveform: ≤0.5%;
Allowable continuous working time: 15min under rated load;
The temperature rise after 15 minutes of continuous operation under rated load is ≤65K;
The quality factor of the device itself: Q≥10;
System measurement accuracy: effective value 1.5;
Partial discharge: ≤10pC;
Input power: single-phase 400V voltage, frequency 50Hz;
The test product has overcurrent, overvoltage and test product flashover protection;
Ambient temperature: -10℃-50 ℃, relative humidity: ≤90%RH, altitude ≤1000 meters;
No partial discharge resonance console:
No partial discharge resonance console CZT (W)-27kVA/380V (including voltage regulator) 1 unit
Rated capacity: 27kVA;
Input voltage: 380V;
Output voltage: 0~400V;
Partial discharge: ≤10pC;
Protection function: zero position, over current, over voltage and test product flashover protection;
Weight: about 130kg;
Without partial discharge excitation transformer:
No partial discharge excitation transformer JLB(W)-27kVA/3kV/0.4kV 1 unit
Rated capacity: 27kVA;
Input voltage: 400V, single phase;
Output voltage: 3kV
Partial discharge: ≤10pC;
Structure: Oil-immersed
Weight: about 125kg;
The temperature rise of the coil to the air after 15 minutes of rated operation: ≤65K
Adjustable reactor without partial discharge:
No partial discharge adjustable reactor DK(W)-225kVA/25kV 1 unit
Rated capacity: 225kVA;
Rated voltage: 25kV;
Rated current: 9A;
Adjustable inductance: 8H-26H;
Partial discharge: ≤10pC;
Quality factor: Q≥10;
Structure: oil-immersed;
Without partial discharge divider:
No partial discharge capacitor voltage divider FY (W) -30kV, 1 unit
Rated voltage: 30kV;
Measurement accuracy: AC effective value 1.5;
Dielectric loss: tgσ≤0.2%;
Partial discharge: ≤10pC;
Partial pressure ratio: 1000:1,
Error of partial pressure ratio: ≤1.0%;
Weight: about 20kg;
Weight: about 150kg;
