Adjustable Inductance AC Resonance Test System

XZB(L)-65000kVA/100kVAdjustable Inductance AC Resonance Test System

Test Application

Ac voltage withstands test of the generator, The maximum test voltage shall not exceed 100kV, single-phase capacitance is not more than 2uF.

Main Technology parameters

Rated capacity：6500kVA;

Rated voltage：100kV;

Rated current：65A;

Working frequency：50Hz;

Output voltage waveform distortion rate：≤0.5%;

Continuous working hours are allowed：underrated on-load 5min

After under rated on-load 5min running, temperature rising≤65K

Quality factor：Q≥10;

Test accuracy：active value 1.5;

Input power supply：single 380Vvoltage, frequency 50Hz;

It has the protection of overcurrent, overpressure, and flashover to test samples;

environment temperature：－150C–40 0C,relative humidity：≤90%RH,altitude≤1000m;

Standard

GB10229-88 《reactor》

GB1094 《power transformer》

GB50150-2016 《the standard for electrical equipment handover and commission test》

DL/T 596-2021 《preventive testing rule of electrical equipment》

GB2900 《electrotechnical terminology》

GB/T16927.1~2-2011 《High voltage test technique》

Test power supply and L,Cx correlation chart

Remark：C_x is the capacitance of the test object

AC Power frequency withstand voltage test：adopt series resonance test

set to carry out generator AC hipot test;

System and parameters

exciting transformer JLB-650kVA/10kV/0.4kV 1set

Rated capacity：650kVA;

Input voltage：400V,single;

Output ：10kV

structure：oil type

weight：about 1.5T

after rated running1min, coil warms the air：≤65K;

Control unit CHXB(L)-650kVA/380V 1 set

Rated capacity ：650kVA;

Input ：380V;

output：0~420V;

Protection features：Zero position, overcurrent, overpressure, and flashover protection;

Weight：about 1.2T

Adjustable HV reactor DK(L)-3500kVA/100kV 1set

Rated capacity：3500kVA;

Rated voltage：100kV;

Rated current：35A;

Adjustable capacitance：9.2-27.4H;

Quality factor：Q≥10;

Structure：oil type;

qty：1 set;

weight：about 2T

Fixed reactor DK-1500kVA/100kV 2 SET

Rated capacity：1500KVA;

Rated voltage：100kV;

Rated current：15A;

Inductance value：22.5H;

Quality factor：Q≥10;

structure：oil type;

G)： about 0.8T

HV divider FRC-100kV 1 set

Rated voltage：100kV;

Measurement accuracy: 1.5 AC effective value;

dielectric loss：tgσ≤0.5%;

voltage dividing ratio：1500：1,

voltage dividing ratio error：≤1.0%;

weight：15kg;

compensating capacitor BC-100kV/0.37uF 1SET

Rated voltage：100kV;

dielectric loss：tgσ≤0.5%;

Rated capacity：0.37uF

D)：about 80kg;

Packing list

System features and functions

Counterattack overvoltage and transfer overvoltage protection：this system

adopt a good wiring way and protective function and can absorb the energy gradually

to avoid the damage of counterattacking overvoltage and transferring overvoltage. After years of field practice, when Sample in flashover or breakdown, it can protect the test set and on-site testers from over-voltage. Meanwhile, it also avoids expending damage after the fault point is flashover and broken down.

Small size, lightweight, easy installation and handling, simple wiring, very suitable for the operation of on-site personnel.

Main functions are as below：

(1)Reactor core gap direct reading function

The device is equipped with a gap observation hole on the reactor, which can directly read the gap of the iron core to guide the operation, and is also equipped with a gap limit switch and an indication.

(2)Withstand voltage time to automatic buck function：

Withstand voltage timing using a digital timer. And when the withstand voltage time is reached, the system will automatically reduce the voltage

zero position closing, zero voltage boost function：

With a zero limit function, if the regulator is not in a zero position, the high voltage output button can not be closed to ensure that the system is raised from zero.

Overcurrent protection function：

The system is equipped with an electromagnetic overcurrent relay, which has a strong anti-interference ability and fast action to prevent the test product from being damaged by the current.

Overvoltage and test subject flashover protection function：

The device is equipped with an electronic overvoltage and flashover protection plate to prevent the test product from being harmed by overvoltage and flashover, and the action is fast.

the Real-time monitoring function of each test data：

The voltage-current of the high voltage side and the voltage current of the low voltage side can be monitored, and the test situation can be more intuitively understood.