DEIF MVR-F210 feeder protection relay Protection Functions

The MVR-F210 feeder protection relay is a modular feeder protection and control solution,

with non-directional overcurrent and earth fault protections with an automatic recloser.

You can add up to 4 I/O or communication modules for more comprehensive monitoring

and control applications. The MVR-F210 feeder protection device communicates using

various protocols, including the IEC 61850.

Applications

A wiring example and key ANSI functions are shown below.

Programmable stage (PSx>/<; 99)

The programmable stage is a stage that the user can program to create more advanced

applications, either as an individual stage or together with programmable logic.

The device has ten programmable stages, and each can be set to follow one to three

analog measurements. The programmable stages have three available pick up terms options:

overX, underX and rate of-change of the selected signal. Each stage includes a definite

time delay to trip after a pick-up has been triggered.

The programmable stage cycle time is 5 ms. The pick-up delay depends on which analog

signal is used as well as its refresh rate (typically under a cycle in a 50 Hz system).

Features

Protection Functions:

• (Sensitive) Earth fault protection stages INST, DT or IDMT (ANSI 50N/51N(S))

• Auto-reclose (ANSI 79)

• Breaker failure protection (ANSI 50BF)

• Cable-end differential protection (ANSI 87)

• Cold-load pick-up block (ANSI 68)

• Current transformer supervision (ANSI 60L)

• Current unbalance/broken conductor protection stages INST, DT or IDMT (ANSI 46 /R/L)

• Harmonic over-current protection/inrush blocking stages INST, DT or IDMT (ANSI 50H/51H/68)

• Programmable stage (ANSI 99)

• Restricted low-impedance earth fault protection (ANSI 87N)

• Switch onto fault logic (SOTF)

• Thermal overload protection (line) (ANSI 49L)

• Three-phase over-current protection INST, DT or IDMT (ANSI 50/51)

• Voltage memor