Relay Protection Test Bench

Feature Highlights

Equipped with dual power supply, capable of manual and automatic switching. Contactors allow load-bearing switching, ensuring reliable power supply.

Our AC power supply utilizes 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 the test power is free from interference from transient processes in the power grid and other harmonics. The transformer employs...△/Y0The wiring method significantly reduces the third harmonic, ensuring power quality.

DC power supplies can continuously and smoothly adjust voltage to accommodate the needs of different testing projects.

Control of the AC power supplyDZ47-60The type automatic switch operates quickly, has a long lifespan, and features automatic tripping for short circuits and overloads.

The output power supply is equipped with a leakage protection switch to ensure the safety of the test personnel. This switch boasts stable performance, high sensitivity, and reliable operation, featuring automatic tripping functions for short circuits and overloads.

DC Circuit UsageGM32MDC circuit breakers, known for their swift operation and long lifespan, feature automatic trip functions for short circuits and overloads.

Performance

Insulation Resistance: Under standard test atmospheric conditions, the insulation resistance between each circuit of the device and the shell is not less than10MInsulation resistance between individual circuits is not less than Ω10MΩ。

Medium Strength: Under standard test atmospheric conditions, the above circuits and the circuits in question can withstand alternating current, respectively.50HzVoltage2kV（Effective Value），Duration1minTested without any insulation breakdown or corona discharge.

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

Exchange Loop UtilizationDZ47-60Miniature Automatic Switch, Mechanical Life On-Off Exceeds210,000 times, instantaneous breaking of current up to4～7）Ie。

Direct Current LoopGM32MDC Circuit Breaker, capable of instantaneous interruption of current up to3～10）Ie(Optionally).

Terms of Use

Measures should be in place to prevent rain and snow from affecting the usage site.

Altitude not exceeding2000Meters.

Ambient Air Temperature:-5℃～+40℃。

Please provide the Chinese content to be translated into American English.40Air humidity does not exceed when the temperature is ℃.50%At lower temperatures, higher relative humidity is permissible.20No Chinese content provided.90%。

Application site mechanical vibration amplitude does not exceed0.05mmFrequency not greater than600Next/No Chinese content provided.

Installation inclination does not exceed the perpendicular line5°。

Surrounding media poses no explosion hazard, no conductive dust, and no corrosive gases.

Key Technical Indicators

Exchange Section

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%。

No Chinese content provided.3%。

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 an eight-hour work schedule, high output current20A；

Output Direct Current Ripple FactorK＜1.5%。