Protection Function

1、Instantaneous protection(with compound voltage and direction locking )

2、Time limit instantaneous protection (with compound voltage and direction locking )

3、Definite-time overcurrent protection (with compound voltage and direction locking ), inverse time overcurrent protection

4、Overload protection

5、Zero sequence overcurrent protection (with zero sequence voltage and zero-sequence direction locking )

6、Zero sequence overvoltage protection

7、Low voltage protection ( under-voltage protection)

8、Under-frequency protection

9、Three phase once reclosing ( with checking no voltage and the synchronism)

10、Post-acceleration

11、Manual closing and remote closing synchronization

12、PT Break Judgment

13、CT Break Judgment

Ordering instructions

Provide the following upon ordering:

1. Name, model and quantity of the device. Please specify any special requirement differs from our standard product.

2. Voltage class. The operating power supply for any device is intended for both AC and DC purposes, with 110V and 220V inputs; the 220V version will be provided unless otherwise specified.

3. Communication port: The device standard communication configure is a single 485. If needs dual RS485 network which shall be specified.

4. Ratings of key parameters

For a protector, provide the nominal rated current (1Aor5A)

For a device with the zero sequence current protection function in a low-current ground system, provide the rated zero sequence current (0.2Aor0.02A)

5. Term and place of delivery, means of transport

6. Other terms shall be negotiated.