Relay Protection Test Power Supply Screen

Feature Highlights

Equipped with dual power supply, it can be manually or automatically switched. Using contactors allows load-bearing switching, ensuring the reliability of power supply.

The AC power supply employs a high-capacity isolation transformer to isolate the system power from the test power source. It also adds a shielding layer between the primary and secondary windings, ensuring that the test power is free from grid transient processes and other harmonic disturbances. The transformer utilizes...△/Y0The wiring method significantly reduces the third harmonic, ensuring power quality.

Direct current (DC) power supplies can continuously and smoothly adjust voltage to accommodate the needs of various testing projects.

Control of the AC power supplyDZ47-60The model automatic switch operates quickly, boasts a long lifespan, and features automatic trip for short circuit and overloading protection.

The output AC power supply is equipped with a leakage protection switch to ensure the safety of the testers. The switch boasts stable performance, high sensitivity, and reliable operation. It also features automatic trip functions for short circuits and overloads.

Direct Current LoopGM32MThe DC circuit breaker operates swiftly, boasts a long lifespan, and features automatic tripping for short circuits and overloads.

Performance

Insulation Resistance: Under standard test atmospheric conditions, the insulation resistance between each circuit and the housing of the device is not less than10MΩ; Insulation resistance between individual circuits is not less than10MΩ。

Medium Strength: Under standard test atmospheric conditions, the aforementioned circuits and the individual circuits between them can withstand alternating current50HzVoltage2kV(Effective Value), spanning1minNo insulation breakdown or arcing observed during testing.

Impulse Voltage: Under standard test atmospheric conditions, each AC and DC circuit should be able to withstand the voltage applied to the housing.5kVPeak-standard lightning wave short-duration impulse test.

Communication Loop UtilizationDZ47-60Miniature Automatic Switch, Mechanical Life On-Off Exceeds210,000 times, instantaneous current interruption is achievable.4～7）Ie。

DC Circuit UsageGM32MDirect Current Circuit Breaker, capable of instantaneously interrupting current up to3～10）Ie(Optionally).

Terms of Use

Facilities should have measures in place to prevent rain and snow from entering.

Altitude not exceeding2000Mi.

Ambient Air Temperature:-5℃～+40℃。

Please provide the Chinese content that needs to be translated into American English.40The air humidity does not exceed %℃.50%At lower temperatures, higher relative humidity is permissible.20Temperature not exceeding °C90%。

Application site mechanical vibration amplitude not greater than0.05mmFrequency not exceeding600Next/Division.

Installation tilt does not exceed the perpendicular line.5°。

No explosive hazard in the surrounding medium; no conductive dust or corrosive gases.

Key Technical Indicators

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Rated Input Voltage: Three-Phase220V/380VFrequency50Hz。；

Rated Output Voltage:220V/380VThree-phase, four-wire, with three-way output.

58V/100VThree-phase, four-wire, with three-way output.

When the three-phase input is balanced, the output unbalance is less than1%。

The third harmonic component is less than3%。

Input Transformer Capacity15kVAUnder the eight-hour work schedule, the high output current is3×22.8A。

Direct Current Segment

AC three-phase power input380V；

Output Direct Current Voltage0～250VContinuous adjustable, with three-way output.

Rectifier Transformer Capacity5kVAUnder the eight-hour workday system, high output current20A；

Output Direct Current Ripple FactorK＜1.5%。