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Basic course on Power system Protection & Control

AGENDA

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Material used for the course

ABB’s Protection application hand book

CBIP manual on Protection of Generators, generator transformers and 220kV and 400 kV networks

CBIP Manual on Reliable fault clearance and back-up protection of EHV and UHV transmission networks

Basic course on Power system Protection & Control

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ABB’s Protection application hand book

The book covers most aspects of protection application based on extensive experience of ABB

Selection of protection relays for different types of objects Dimensioning of CTs and VTs matching protection

requirements Design of protection panels including DC and AC

supervision, terminal numbering etc Setting of protection relays to achieve selectivity Principles of subdivisions of the protection systems for

higher voltages

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ABB’s Protection application hand book

List of Contents

1 Network General

2 Fault calculation

3 Network earthing

4 Protection General

5 Protection Line

6 Protection Transformer

7 Protection Reactors8 Protection Capacitors

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ABB’s Protection application hand book List of Contents

9 Protection Bus and Breaker

10 Earth fault protection

11 Current Transformers

12 Voltage Transformers

13 Requirement on current transformers

14 Control System structure

15 Protection Settings

16 Subdivided systems

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• Recommendations contained herein for protection of E.H.V system of 220 kV and 400 kV are intended to be used by utilities in India as a guide for minimum provisions at different voltage levels.

• The manual also contains a section on Generators and Generator

Transformer protection.

CBIP Manual-1

Manual on Protection of Generators, Generator

Transformers and 220 kV and 400kV Networks

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1.0 Contents1.0 Contents

• Generator and Generator Transformer protection•Line protection•Autoreclosing•Transformer protection•Reactor protection•Bus bar protection•Breaker fail protection•Disturbance recorder and Fault location equipment•Guide lines for protection engineering• Location of CTs and VTs • Commissioning tests and maintenance recommendations•Test equipment

CBIP Manual-1

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WG formed in 2003 Members from

Utilities,Manufacturers & Academic institutes in India

Report released during CIGRE colloquium of B4 + Meeting of CIGRE Administrative Council in Bangalore India

17-24 Sep 2005

Details of the WG

CBIP Manual-2

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Aim of the manual

Gives recommendations to Utilities in India

Fine tune some practices Management of Protection Systems in EHV

&UHV systems Enhance dependability of fault clearance system

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Circuit Breaker

TripCoil

CircuitBreakerMecha-

nism

DC-System

ProtectionEquipment

CT

VT

TE

Protection System

Fault Clearance System

Fault clearance system

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Dependability of fault clearance system

Second main protection increases the availability and dependability

Back-up protection that is independent of the main protection enhances this .

Decisions for provision of additional protection and back-up protection should be considering the disturbance costs due to uncleared faults.

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Disturbance costs Risk of injury to people and damage to third party

property

Risk of damage to power lines and other power apparatus

Customer outages

Voltage disturbances

Customers’ complaints and ill will

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Continuous improvement

Utilities should have a system of measuring and keeping record of the performance indices for Protection devices and Switching devices

Dependability

Security

Helps taking decisions regarding maintenance, modernizing and retrofitting of switching and protection system

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Usefulness to utilities The manual will help the protection engineers of

various utilities in India in managing the availability and reliability of the fault clearance system in transmission networks in the voltage range from 132 kV to 765 kV.

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Chapter 1 : Introduction   Chapter 2: Fundamentals Chapter 3 : Requirements Chapter 4 : Performance Indices Chapter 5 : Lines and Cables Chapter 6 : Power Transformers Chapter 7 : Shunt Reactors Chapter 8 : Bus bars Chapter 9 : DC auxiliary Supply Systems Chapter 10 : Switching Devices Chapter 11 : Communication Systems Chapter12 : References

List of contents

CBIP Manual-2

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Day-1 ( Morning session 09:00-13:00) Protection General Protection Line Network General

Day-1 ( Afternoon session 14:00-18:00) Protection Transformer Fault calculation Network earthing

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Day-2 ( Morning session 09:00-13:00) Protection Reactors Protection Capacitors Subdivided Systems Protections in breaker and half bus configuration

Day-2 ( Afternoon session 14:00-18:00) Protection Bus and Breaker Control System structure Protection of SC lines Overview of PTSY-R products

AGENDA- COURSE ON PROTECTION APPLICATION

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Day-3 ( Morning session 09:00-13:00) Control Circuits , Interlocking Earth fault protection Current transformer

Day-3 ( Afternoon session 14:00-18:00) CT requirements Voltage transformer Protection Settings

AGENDA- COURSE ON PROTECTION APPLICATION

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Test Exercise

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Go through the questions carefully

Write answer when point is explained during the presentation.

Test

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