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Overcurrent Relay Settings Guide

This document summarizes overcurrent relay settings for two relays: an Ashida VRNFS relay and a Square D SEPAM S40 relay. It lists the manufacturer, model, and ratings for each relay, along with pickup, time dial, and delay settings for the long-time inverse, instantaneous, and extremely inverse time overcurrent elements for phases and ground.

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Sathiya Seelan
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199 views1 page

Overcurrent Relay Settings Guide

This document summarizes overcurrent relay settings for two relays: an Ashida VRNFS relay and a Square D SEPAM S40 relay. It lists the manufacturer, model, and ratings for each relay, along with pickup, time dial, and delay settings for the long-time inverse, instantaneous, and extremely inverse time overcurrent elements for phases and ground.

Uploaded by

Sathiya Seelan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Project: ETAP Page: 1

Location: 12.6.5C Date: 03-13-2017


Contract: Revision: Base
Engineer: Overcurrent Relay Settings
Filename: Protection

OCR: Ashida VRNFS


MFR: Ashida Tag #: CT Base kV If (kA)
Model: VRNFS Phase: 100/5

OC Level: OC1
Range Setting
Phase TOC IEC - Long Time Inverse (TMS)
Pickup (Tap) 0.1 - 2.4 xCT Sec 1.380
Time Dial 0.063
Phase INST Pickup 0.1 - 24 xCT Sec 24.000
Time Delay 0.05 - 300 Sec 0.250

Neutral TOC Extremely Inverse Time


Pickup (Tap) 0.1 - 1 xCT Sec 1.000
Time Dial 0.100
Neutral ST Definite Time
Pickup 0.1 - 15 xCT Sec 5.000
Time Dial 0.41

OCR: SEPAM S40


MFR: Square D Tag #: CT Base kV If (kA)
Model: Sepam Series 40 Phase: 100/5

GND: 100/5

OC Level: OC1
Range Setting
Phase TOC IEC - Long Time Inverse (TMS)
Pickup (Tap) 0.1 - 2.4 xCT Sec 1.450
Time Dial 0.069
Phase INST Pickup 0.1 - 24 xCT Sec 35.000
Time Delay 0.05 - 300 Sec 0.050

Neutral TOC Extremely Inverse Time


Pickup (Tap) 0.1 - 1 xCT Sec 1.000
Time Dial 0.269
Neutral INST Pickup 0.1 - 15 xCT Sec 10.000
Time Delay 0.05 - 300 Sec 0.350

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