Application of three-phase current limiting protector for 30kw charging pile

Electrical fire-resistant current limiting protectors can effectively overcome the drawbacks of traditional circuit breakers, air switches, and monitoring equipment, such as high short-circuit current, long interruption time of short-circuit current, large arc sparks generated during short-circuit, and short service life. When a short-circuit fault occurs, it can quickly limit the short-circuit current at microsecond level speed to achieve arc extinguishing protection, thereby significantly reducing electrical fire accidents and ensuring the safety of personnel and property in the use site.

The ASCP310 series electrical fire protection current limiting protector is a three-phase current limiting protector mainly used for line protection in electric vehicle charging stations.

1、 Functional Features

Short circuit protection function. The protector monitors the current of the power line in real time. When a short circuit fault occurs in the line, it can achieve fast current limiting protection within 150 microseconds and emit sound and light alarm signals.

Overload protection function. When the current of the protected circuit is overloaded and the overload duration exceeds the action time (3-60 seconds can be set), the protector starts the current limiting protection and emits an audible and visual alarm signal.

Internal over temperature protection function. When the working temperature of the internal components of the protector is too high, the protector implements over temperature current limiting protection and emits an audible and visual alarm signal.

Overvoltage and undervoltage protection function. When the protector detects undervoltage or overvoltage of the line voltage, it emits an audible and visual alarm signal, and can pre-set whether to activate current limiting protection.

Temperature monitoring function for distribution cables. When the temperature of the monitored cable exceeds the alarm set value, the protector emits an audible and visual alarm signal, and can pre-set whether to activate current limiting protection.

Phase failure protection function. When the protector detects a phase failure in the circuit, it emits an audible and visual alarm signal to activate current limiting protection.

Remaining current monitoring function. When the remaining current of the monitored line exceeds the alarm set value, the protector emits an audible and visual alarm signal, and can pre-set whether to activate current limiting protection.

The protector has one RS485 interface. Data can be sent to the backend monitoring system for remote monitoring. The monitoring backend can be the Acrel-6000/B electrical fire monitoring host, the Acrel-6000 secure electricity management cloud platform, or a third-party monitoring software or platform.

2、 Installation method

The ASCP310 series current limiting protector adopts wall mounted installation, which can be hung on the wall or fixed inside the distribution box with good ventilation and heat dissipation conditions. Its installation and fixing position is shown in the above figure.

When installing on the wall, it is recommended to install it in a place without dripping water, corrosive chemical gases, and sedimentary substances. M6 * 55 galvanized expansion bolts can be used to fix it to the wall.

When installing inside the distribution box, it is recommended to reserve a distance of at least 10cm on both sides of the protector. M6 * 12 galvanized drill tail triangular self tapping screws can be used to fix it on the back mounting plate or horizontal mounting bracket of the distribution box.

Application of three-phase current limiting protector for 30kw charging pile

Application of three-phase current limiting protector for 30kw charging pile