ABB RELAY SPAJ140C

ABB RELAY SPAJ140C

1、SPAJ140C Product picture

2、SPAJ140C Main functions

(1) Overcurrent protection:

· Protect equipment such as transformers, generators, busbars, motors, circuits, capacitor banks, cables, and circuit breakers from overcurrent.

· Provide interphase and zero-sequence overcurrent protection to ensure timely response in various fault conditions.

(2) Ground fault protection:

· Detect and respond to ground faults in the system to prevent the expansion of faults and equipment damage.

· Provide a variety of ground fault protection functions, such as sensitive ground faults, insensitive ground faults, etc.

(3) Communication and monitoring:

· Support a variety of communication protocols, such as Modbus, DNP3, etc., to facilitate communication with the host computer or monitoring system.

· It provides an event recording function, which can record information such as the time, type, and parameters of the fault, so as to facilitate fault analysis and handling.

(4) Advanced protection features:

· Including thermal overload protection, voltage control overcurrent protection, voltage control direction overcurrent protection, etc., to provide more comprehensive protection.

· It supports the thermal memory function, which can consider the thermal time constant of the motor or transformer, and improve the accuracy of protection.