Product Introduction

During high-voltage switch testing, the output voltage drops significantly after rectifier power supply is applied with the load, which has a noticeable impact on the switch's operational characteristics that cannot be overlooked.

The LDYD-20B portable programmable AC/DC power supply control box utilizes advanced compensation technology and electronic components, featuring multiple protection functions for superior performance. It overcomes voltage drops after loading and includes a quick shutdown feature to ensure the switch action is disconnected immediately after power-on, preventing coil burnout, and operates stably and reliably. It is suitable for power departments in conducting various low-voltage switch operation tests and opening/closing tests.

Product Alias: High Voltage Switch Operating Power Supply, High Voltage Detection Switch Operating Power Supply, Switch Operating Power Supply.

Product Features

Power Socket: Input AC 220V ±10% / 50Hz

2. Voltage Gauge: Displays the current DC voltage value

3. Push-button for closing and opening: DC voltage to start or stop

4. Boost/Reduce Voltage Button: DC 15-250V ±1%

5. Current: MAX 20A (short-term operation ≤1000ms), output time ≤60s when current ≤10A.

6. Direct Current Closing (Opening) Output Terminals: Red terminal outputs positive power for closing, black terminal outputs negative power, and green wire terminal outputs positive power for opening.

7. AC Closing (Opening) Terminal: Ensure that the AC closing and opening control lines are connected separately; do not connect them to a common terminal. Connecting them to a common terminal may damage the instrument's power supply.

8. Storage +/-: Press the storage voltage button once for output, press it again to shut off power.