1、 Product Introduction:
1. The AC withstand voltage test of the generator requires the use of power frequency voltage. Currently, the national standard defines the frequency of power frequency voltage as 45Hz~65Hz. However, in many testing scenarios, the generator is required to undergo an AC test of 50Hz ± 2 Hz, and the ground capacitance of the generator stator winding is relatively large. Currently, most testing units in China use test transformers to test it, but the test transformers themselves are very heavy, often weighing up to tons, making on-site testing very inconvenient. Our company has designed and manufactured a inductive generator AC voltage withstand resonant boost device to address this current situation;
2. This series of devices achieves resonance by adjusting the inductance of the reactor. By adjusting the inductance of the reactor based on the capacitance of the test sample, the system resonates and generates high voltage. During the boosting process, if the resonance point deviates, the resonance point can be accurately found by fine-tuning the frequency to ensure a high Q value, thereby reducing the power supply capacity and the weight of the test equipment.
2、 Product features:
1. Conducting AC withstand voltage tests on generators of the same voltage level and capacity significantly reduces the overall weight of the equipment, completely solving the problem of difficult on-site handling;
2. The principle of the entire device is advanced, and new frequency and sensing technologies are applied to strictly ensure the requirements of the generator's power frequency withstand voltage test; Wide applicability, greatly enhancing the value of equipment use;
3. It has strong protection function, good output waveform, good stability, multiple working modes, easy operation, and uses two power sources of 220V or 380V for convenient on-site power supply;
4. Accurately locate the ideal Q point through sensitivity adjustment to avoid resonance shift caused by voltage rise;
5. Flexible configuration and strong expansion capabilities. Different types of reactors can be selected or multiple series parallel connections can be used to meet the testing requirements of all capacitive samples in the power system; At the same time, it can meet the needs of both power frequency testing and frequency conversion testing; The device can be used for both generator AC withstand voltage testing and cable AC withstand voltage testing, achieving multi use and high cost-effectiveness.
3、 Product Technical Parameters:
1. Rated output voltage: 0-50kV; 0-80KV (effective value) and below
2. Output frequency: 45-65Hz
3. Resonant voltage waveform: pure sine wave, waveform distortion rate ≤ 1%
4. Device output capacity: 15-5000KVA and below
5. Work schedule: Under full power output, a continuous working time of 15 minutes is required
6. Quality factor: 10-40
7. Frequency adjustment sensitivity: 0.1HZ, instability<0.05%
8. Working power supply: 220V or 380V ± 15%/50HZ ± 5%
Note: Products can be customized according to specific customer requirements.
