Production pressure test device

1Multi frequency induction voltage withstand test deviceIntroduction to features and performance; Voltage transformer (PT) is a key equipment in the power system, and induction withstand voltage test is an important test to ensure product quality meets national standards. The longitudinal insulation induction withstand voltage test between turns, layers, segments, and phases of PT windings is an important item in PT insulation testing. The longitudinal insulation test requires the application of test voltage through a variable frequency power supply device for the withstand voltage test. Conducting induction voltage withstand test on PT can help staff detect problems in a timely manner and avoid serious consequences.

Our company producesMulti frequency induction voltage withstand test deviceAdopting microcomputer control, combined with excellent frequency conversion and high-speed sampling technology, it is designed and manufactured with higher efficiency than traditional triple frequency generators, stable output voltage, high measurement accuracy, good repeatability, and can achieve automatic boosting, automatic timing after boosting to the set value, and automatic voltage reduction after timing completion. The operation is extremely simple. The instrument adopts a backlit large screen LCD display, a fully Chinese operating interface, with real-time clock and micro printer. The instrument adopts an integrated structure, which is lightweight and easy to carry.

Attention: The small resolution step change of 0.1Hz can not only be used for PT induction withstand voltage test, but also for other occasions that require the use of variable frequency power supply.

2、 Main features:

Preventing capacitance rise: Combined with a high impedance capacitive voltage divider, it can directly monitor the high voltage on the primary side and automatically complete the induction withstand voltage test.

Easy to operate: Pressurization can be divided into fully automatic pressurization and manual pressurization, with optional constant voltage output in the frequency range of 30Hz to 200Hz.

Comprehensive protection: The instrument has complete overvoltage and overcurrent protection functions, which can be set by the user.

Fresh Display: Adopting a backlit large screen LCD screen, the display is clear and the operation interface is simple and clear.

Fast printing: The instrument is equipped with a miniature high-speed thermal printer, which can quickly print display content.

Real time clock: capable of recording the measured date and time, and displaying the current time on the LCD screen.

Seismic performance: Adopting seismic design, the instrument will not be damaged by bumps during long-distance transportation.

3、 Main technical indicators

Working conditions: Environmental temperature: -10 ℃~50 ℃ Relative humidity: 30%~90%

Power supply: three-phase AC380V ± 10% or AC220 ± 10% 50Hz ± 5Hz. If AC220 is used for power supply, the power is halved

Output frequency: 30Hz~200Hz Adjust fineness 0.1Hz Output voltage: 30~350V sine wave

Output power: 15KW

High output voltage: 350V High output current: 32A

Voltage resolution: 0.01V Current resolution: 0.001A Voltage and current accuracy: ± 1%

Instrument weight: 6kg