Product Introduction

When calibrating a capacitive voltage transformer (CVT), the test frequency must be carried out at 50Hz. At the same time, the geographical conditions on site are complex, and traditional experimental devices are difficult to meet the requirements of on-site handling and testing. The TPXB-F tunable resonant boost device is one of the first adjustable resonant devices used for on-site calibration in China, and has been widely used for on-site calibration of capacitive voltage transformers of 500kV and below in China.

Other name

CVT inspection resonant boost device, variable frequency resonance, variable frequency series resonance, series resonance, series resonance transformer, transformer calibration resonant boost device, series resonance test equipment, resonant boost device, variable frequency resonance, variable frequency series resonance, series resonance transformer, series resonance test equipment, CVT calibration resonant boost device, voltage transformer boost test device, series resonance test boost device

Product Features

1. The output voltage and current waveform is good, with distortion less than 0.5%

2. A small capacitance is required, and the required power supply capacity is 1/Q times the test capacity, with a Q value of 20-60

3. No overvoltage protection is required. When the test sample breaks down, the system loses resonance, the resonant high voltage disappears, and the reactor immediately limits the short-circuit current without exacerbating the damage to the test sample

4. Easy to move on site, this device is a dry-type combination series resonant device consisting of an excitation transformer and multiple resonant reactors. Each individual unit has a small volume and light weight

5. The protection function is complete, with zero position protection (when the voltage output control knob is not in zero position, the system is prohibited from starting), overvoltage protection, overcurrent protection, flashover protection and other functions, ensuring the reliability of the system

Technical Specifications

TPXB-F CVT series resonant boost device system parameters

Rated capacity: 80kVA; 160kVA； 240kVA； 320kVA；

Input power supply: 220V/380V, frequency 50Hz;

Rated voltage: 160kV;

Rated current: 0.5A; 1A; 1.5A；2A；

Working frequency: 50Hz;

Waveform distortion rate: Output voltage waveform distortion rate ≤ 1%;

Working time: allows continuous operation for 15 minutes under rated load; Overvoltage 1.1 times for 1 minute;

Temperature rise: After continuous operation for 15 minutes under rated load, the temperature rise is ≤ 65K;

Quality factor: The device itself has a Q ≥ 10 (f=50Hz);

Measurement accuracy: System effective value of 1.5 level;

TPXB-F CVT series resonant boosting device excitation transformer

Excitation Transformer EDJLB -5kVA/5/10kV/0.2/0.4kV 1 set

Rated capacity: 5kVA;

Input voltage: 0-400V, single-phase;

Output voltage: 5/10kV;

Structure: Dry type;

Weight: approximately 40kg;

TPXB-F CVT series resonant boost device control box

Control box TPXB-F -5kVA/220V/380V 1 unit

Rated output capacity: 5kVA

Working power supply: 220 ± 10% V power frequency

Output voltage: 0-250V

Rated input current: 25A

Rated output current: 25A

Running time: Continuous 15 minutes at rated capacity

Continuous operation for 15 minutes at rated capacity, component high temperature ≤ 65K;

Noise level: ≤ 50dB

Weight: approximately 15kg;

TPXB-F type CVT series resonant boost device reactor

Electric adjustable reactor EDDK-80kVA/160kV 1 section

Rated capacity: 80kVA;

Rated voltage: 160kV;

Rated current: 0.5A;

Quality factor: Q ≥ 16;

Rated inductance range: 1100-450H;

Continuous working time: 15 minutes;

Adjustable reactor size: Ø 480 * 1550mm;

Weight: approximately 280kg/section;