| 摘要 |
<p>A device for controlling and communicating with a circuit protection device attaches to the front part of the device and comprises communication means, an electronic controller 11, a power supply 9 and an actuator 8 to change the position of the device handle and is of a size within the limits of a standard circuit protection device front part. The communication means can comprise phototransistor 10 for bidirectional data transfer with the protection device and power and data bus connection 7 for connection to a network gateway (fig 4, 22) which can connect to plural add-on devices to transmit and receive measurement data such as status, current, voltage, contact resistance and temperature, using typically a USB, Ethernet, RS232 or similar protocol. The device can set and reset the protection device's main contacts automatically or remotely using a motor, piezo, clock-work or solenoid actuator and include a display 13 and function buttons 4. The add-on device can be interchangeable and assembled/dissembled to the face of protection devices without modification or access to dangerous components by fixing arrangement 1.</p> |
