Thanks to visit codestin.com
Credit goes to www.scribd.com

Scribd
Upload
531 views2 pages

Mvtp11-Ct Supervision Relay

This document is a site test record for an MVTP11 CT Supervision Relay. It summarizes the tests performed on the relay, including mechanical checks, electrical tests to check isolation, burden, pickup values, timing, and final settings. The tests were performed and witnessed by AREVA T&D technicians on a given date.

Uploaded by

THILAKKUMAR
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
531 views2 pages

Mvtp11-Ct Supervision Relay

This document is a site test record for an MVTP11 CT Supervision Relay. It summarizes the tests performed on the relay, including mechanical checks, electrical tests to check isolation, burden, pickup values, timing, and final settings. The tests were performed and witnessed by AREVA T&D technicians on a given date.

Uploaded by

THILAKKUMAR
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
You are on page 1/ 2

Customer Contract

Location #
Project
Contractor
AREVA T&D Site test record RELAY TEST Doc. Ref.

MVTP11- CT SUPERVISION RELAY


1. GENERAL DATA AND INFORMATION:
Circuit. Model no:
Panel No. Aux. supply
Make: No of contacts
Frequency R phase Sl.no
Flag type Y phase Sl.no
Setting Range B phase Sl.no

2. MECHANICAL CHECKS AND VISUAL INSPECTION:

ITEM DESCRIPTION CHECKED


1 Inspect for any physical damage or defects.
2 Verify connections as per approved drawings.
3 Check the tightness of all connections.
4 Check ferrules.
5 Check apparatus lists.
6 Check that serial no. of relay matching with serial no. of case.

3. ELECTRICAL TESTS:
3.1 PRELIMINARY TEST:
FUNCTION R Y B
Test Switch Isolation Checked
CT Bus Shorting Contacts Checked

3.2 RELAY BURDEN:


Relay DC voltage Relay DC current Burden
Condition
R Y B R Y B R Y B
No operation
Operation

Note: For 48/54 V burden operation/no operation = 1.3/4.86W


For 110/125V burden operation/ no operation = 3.0 / 4.37W.

Test performed by Test witnessed by Date of test


AREVA T&D
Name MUSTAFA HAJI

Signature
Customer Contract
Location #
Project
Contractor
AREVA T&D Site test record RELAY TEST Doc. Ref.

MVTP11- CT SUPERVISION RELAY


3.3 PICKUP TEST;

Voltage R Y B
Setting Pick up Drop off DO/PU Pick up Drop off DO/PU Pick up Drop off DO/PU
(V) (V) (V) Ratio (V) (V) Ratio (V) (V) Ratio
2

9
Note: Pickup voltage +/-5% Vs. Drop off/ Pickup ratio >85% after 3 sec delay.
3.4 TIMING TEST:
Phase Contacts No. Actual Operating time at 2xVs Expected operating time (s)

R 3 +/-5%

Y 3 +/-5%

B 3 +/-5%

3.5 FINAL SETTING:


Relay final current setting:
3.5.1 PICKUP TEST:

Voltage R Y B
Setting Pick up Drop off DO/PU Pick up Drop off DO/PU Pick up Drop off DO/PU
(v) (V) (V) Ratio (V) (V) Ratio (V) (V) Ratio

4. FUNCTIONAL TEST:
Item Description Checked
1 All contacts checked.
2 All output contacts resistance measured.
3 Flag operation checked.

Test performed by Test witnessed by Date of test


AREVA T&D
Name MUSTAFA HAJI

Signature

You might also like