● Product Introduction
Product name: 20kV/600MV hydraulic generator group power frequency induction series resonance
Product specification: XSN (XZ) -1700kVA/50kV
Applicable to the subject: hydraulic generator
Scope of test: power frequency AC voltage withstand test of 20kV/600MW hydroelectric generator
● Product functions and functions:
1. Help customers to carry out preventive ac pressure test and handover AC pressure test of all kinds of tested products;
2. Ac voltage withstand test of cross-linked rubber and plastic power cables, power transformer, GIS, transformer, insulator, generator, switch and other tested products' insulation ability to withstand various overvoltages and capacitive loads.
Product name: series resonance withstand voltage test complete set of equipment, AC withstand voltage test complete set of equipment, resonance boost device for inspection, series resonance withstand voltage tester.
Test object: power frequency AC voltage withstand test of 20kV/600MW hydroelectric generator, the highest test voltage is not more than 43kV, and the ground power capacity is 2.3487uF
● Technical parameters
Main technical parameters and functions of the system:
1, rated capacity: 1700kVA;
2, rated voltage: 50kV
3, rated current: 34A
4, working frequency: power frequency 50Hz;
5, output voltage waveform distortion rate: ≤0.5%;
6. Allowed continuous working time: 5min under rated load;
7. Temperature rise ≤65K after continuous operation for 5min under rated load;
8, the device's own quality factor: Q≥30;
9, system measurement accuracy: effective value 1.5 level;
10, input power supply: three-phase 380V voltage, frequency is 50Hz;
11, the test has over current, over pressure and flashover protection;
12, ambient temperature: -150C -- 400C, relative humidity: ≤90%RH, altitude ≤1000 meters;
● Product configuration and parameters:
1, excitation transformer JLB-170kVA/5kV/0.4kV one
Rated capacity: 170kVA;
Input voltage: 400V, single phase;
Output voltage: 5kV
Structure: oil type
Weight: about 650kg;
Coil air temperature rise after rated operation for 1 minute: ≤65K
2, electric voltage regulator TY (D) -170kVA/380V/0~430V 1
Rated capacity: 170kVA;
Input voltage: 380V, three-phase;
Output voltage: 0~430V, single phase;
Structure: single-phase electric voltage regulation;
Weight: about 900kg;
3, resonant operation station CZT (XZ) -170kVA/380V 1
Rated capacity: 170kVA;
Input voltage: 380V;
Output voltage: 0~420V;
Protection function: zero, over current, over voltage and flashover protection;
Weight: about 120kg;
4, adjustable reactor DK-800kVA/50kV 1
Rated capacity: 800kVA;
Rated voltage: 50kV;
Rated current: 16A;
Adjustable inductance: 8H~21H;
Quality factor: Q≥30;
Structure: oil type;
Weight: about 600kg;
5, high voltage reactor DK (G) -450kVA/50kV 2 sets
Rated capacity: 450kVA;
Rated voltage: 50kV;
Rated current: 9A;
Inductance: 18H;
Quality factor: Q≥10;
Structure: oil type;
Weight: about 320kg;
6, AC and DC voltage divider JZL-50KV 1 set
Rated voltage: 50kV
Measurement accuracy: AC effective value 1.5 level;
Dielectric loss: TG σ≤0.5%;
Partial pressure ratio: 1000:1,
Partial pressure ratio error: ≤1.0%;
Weight: about 9kg;
7. 1 set of compensation capacitor BC-50kV/0.5uF
Rated voltage: 50kV;
Capacitance: 0.5uF
Weight: 100 kg
