PROTECTION USE FOR POWER TRANSFORMER IN SUB STATION

Name: PROTECTION USE FOR POWER TRANSFORMER IN SUB STATION
Rating: 3.6 (8 reviews)

POWER SYSTEM PROTECTION OF EHV SUB STATION: PROTECTION OF POWER TRANSFORMER

Created byRelay Protection Electrical

Last updated 11/2023

English

What you'll learn

Relays used for Power Transformer
How the Differential Relay Works ( Micom P64X & Micom P63X )
Working Principle of High Impedance and Low Impedance Restricted Earth Fault (REF) Relay
Over Current and Earth Fault Relay for Power Transformer
Transformer Over Fluxing Relay

Course content

1 section • 16 lectures • 2h 11m total length

Introduction2:56
What is meant by Differential Zone of Transformer Differential Protection.1:54
How by Using ICT phase and magnitude correction can be done for static Differ12:57
Explore how ICT phase and magnitude correction enable a static differential relay to compensate phase shifts and current mismatches in a YND1 star-delta 132/33 kV transformer.
What is Matching Factor and PU (Per Unit) Current in Differential Relay.8:35
Characteristics of Micom P64X Differential Relay for Power Transformer.12:18
Learn the characteristics of the Micom p6 differential relay for power transformers, including differential delay, initial and high slope settings, matching factor calculations, and tap-mismatch protection.
Characteristics of Micom P63X Differential Relay for Power Transformer.8:05
Explain the Micom P63X differential relay for power transformers, detailing differential and bias currents, thresholds, k1 slopes, and the operating boundary for trips.
What is Zero Sequence Filtering and why it is important in Differential Relay8:33
Explore zero sequence current filtering for transformer differential protection, its role in preventing mismatched currents during earth faults, and when to enable or disable filtering on star versus delta windings.
How much Winding is Protected by Differential Relay for Transformer?6:59
High Impedance Restricted Earth Fault Relay for Star side of Transformer.8:32
High Impedance Restricted Earth Fault Relay for Delta Side of Transformer.7:46
Discusses restricted earth fault protection for a delta-wind transformer using a high-impedance relay, including neutral earthing, vector group YND1, and fault current flow analysis.
How to Calculate Stabilizing Resistance (Rs) for High Impedance Restricted Earth9:02
Why Metrosil is required for High Impedance Restricted Earth Fault (REF) Relay.7:08
What is Low Impedance REF Protection Relay and When It is Used.8:29
Difference between High Impedance REF and Low Impedance REF Protection Relay.6:17
Compare high impedance and low impedance restricted earth fault protection relays, highlighting complex city wiring and equal city ratios in high impedance versus simpler wiring in low impedance.
Over-current (O/C) and Earth Fault (E/F) Relay for Transformer13:29
What is Over-Fluxing Relay and Its Working Principle for Transformer.8:51
Questions Based on the Course

Requirements

Basic Knowledge of Electrical Engineering
Electrical Engineering Students

Description

In this course you will learn about different protection used for Power Transformer in a Sub Station:-

1. What is meant by Differential Zone of Transformer Differential Protection.

2. How by Using ICT phase and magnitude correction can be done for static Differential Relay.

3. What is Matching Factor and PU (Per Unit) Current in Differential Relay.

4. Characteristics of Micom P64X Differential Relay for Power Transformer.

5. Characteristics of Micom P63X Differential Relay for Power Transformer.

6. What is Zero Sequence Filtering and why it is important in Differential Relay for Transformer.

7. How much Winding is Protected by Differential Relay for Transformer?

8. High Impedance Restricted Earth Fault Relay for Star side of Transformer.

9. High Impedance Restricted Earth Fault Relay for Delta Side of Transformer.

10. How to Calculate Stabilizing Resistance (Rs) for High Impedance Restricted Earth Fault (REF) Protection Relay.

11. Why Metrosil is required for High Impedance Restricted Earth Fault (REF) Relay.

12. What is Low Impedance Restricted Earth Fault (REF) Protection Relay and When It Shall be Used.

13. Difference between High Impedance REF and Low Impedance REF Protection Relay.

14. Over-current (O/C) and Earth Fault (E/F) Relay for Transformer and Calculation of Setting of PSM and TMS.

15. What is Over-fluxing Relay and Its Working Principle for Transformer.

Who this course is for:

ELECTRICAL ENGINEER WORKING IN POWER SECTOR, STUDENTS WILLING TO LEARN AND WORK IN POWER SECTOR
Employee Working in Sub Station
Electrical Engineering Students