Product Profile of Numerical 4 Elements Protection Relay
Numerical 4 Elements Protection Relay is provided with in-built CB Trip Circuit Supervision function during pre closing and post closing of CB. The 4 Elements Protection Relay enables On-site CT Secondary selection of 1A or 5A. Numerical 4 Elements Protection Relay is manufactured by Ashida Eletronics Pvt. Ltd., an ISO 9001:2008 recognised company.
Ashida Eletronics Pvt. Ltd. also manufactures a wide range of electrical power protection relays, auxiliary protection relay and SCADA systems. The Numerical 4 Elements Protection Relay provides Online display of CB status and other digital and logical status.
Salient features of the Numerical 4 Elements Protection Relay:
4 Element [3 Phase + EF] Non Directional Over current IDMT/DMT.
Selection of Curve: Five selectable curve [Normal Inverse1, Normal Inverse, Very inverse, Extremely inverse, Long time inverse and Define Time
Instantaneous Over-Current Protection with adjustable timer.
Breaker Failure detection
In-built CB Trip Circuit Supervision function during pre closing and post closing of CB.
On site CT Secondary selection 1A or 5A.
Internal calculation of zero seq. current for Earth fault
Wide range Power supply input 18V to 250V AC/DC
Cold Load Pickup
RS 485 communication port [at rear side] for remote SCADA.
IEC60870-5-103 Protocol for communication
16 X2 LCD Backlit display for Parameter and setting display
Online display of CB status and other digital and logical status.
Continuous monitoring of module`s internal hardware and alarm generation in case of failure of any critical components.
4 Digital Output contacts for local alarm as Trip
2 dedicated status input for Trip Circuit Monitoring
5 nos of Fault data stored with keypad interface and time stamping.
