SZT three-phase agricultural power grid non-contact automatic voltage regulator, non-contact voltage regulation, its main circuit is in the form of a compensation transformer, using a thyristor module to switch taps for voltage regulation, the positive compensation range for the grid voltage can reach 50%, The output voltage can be maintained within the range of ±5% of the rated value; the non-contact voltage regulation does not require the switching of mechanical contacts, the response speed is extremely fast, no arc is generated, and it can be operated for a long time without maintenance. It can completely solve the problem of low voltage and frequent fluctuations in the distribution transformer area.

The SZT three-phase agricultural power grid non-contact automatic voltage regulator is composed of a control circuit, a compensating voltage regulating circuit, an output circuit and a straight-through circuit. The "control circuit" samples the input voltage and the output voltage respectively, and controls the state of the "compensating voltage regulator circuit" after comparing with the reference voltage. When the input voltage deviates from the rated value by more than ±5%, the voltage regulating circuit enters the "voltage regulating state"; when the input voltage is within ±5% of the rated voltage value, the voltage regulating circuit exits the "voltage regulating state". The compensation range of the input voltage is ±20%, ±30%, and ±40%, and can also produce special products with ±50% compensation for users.

SZT three-phase agricultural power grid non-contact automatic voltage regulator, all three-phase adjustment, the whole machine has no machinery, no carbon brush, no noise, no contact voltage regulation, the response speed is extremely fast, and there is no waveform distortion during the voltage regulation process , no power outage. Its MTBF is more than 100,000 hours, thus realizing rapid pressure regulation, durability and long-term maintenance-free. The thyristor module in the automatic voltage regulator of the rural power grid does not work in the phase-shift voltage regulation state, but in the switching state, so it will not generate any harmonics.

SZT three-phase agricultural power grid non-contact automatic voltage regulator, the input end is equipped with a full-mode protection three-phase 40KA lightning surge protector (JOSLYN technology from the United States), which can effectively prevent the intrusion of surge voltage along the power line. voltage and subsequent loads can cause damage.

The SZT three-phase agricultural power grid non-contact automatic voltage regulator can be equipped with a reactive power compensation module, which can automatically measure the phase difference between the phase voltage and the phase current, improve the power factor in real time, reduce the power supply loss, and improve the user's power quality.

The SZT three-phase agricultural power grid non-contact automatic voltage regulator can also be connected to the power grid intelligent distribution transformer monitoring system, so that the main station of the system can monitor the working condition of the automatic voltage regulator in real time.

Model meaning

SZT Three-phase rural power grid non-contact automatic voltage regulator model meaning

技术指标

The main function

Model Specifications