This document provides an overview of an ID-fan presentation for a 3600 MW thermal power plant. It includes sections on the purpose and function of ID-fans, which is to draw flue gases out of combustion chambers and create negative air pressure. It outlines the specifications of the fans and motors. It also describes the pre-start checks, start permissives, start sequence, planned and emergency shutdown procedures, and interlocks for safety. The presentation aims to help attendees understand how to operate the ID-fans according to standard procedures.

1. PRESENTATION ON ID-FAN
OPERATION
KSK MAHANADI POWER COMPANY LIMITED
3600 MW TPP, Nariyara, Chhattisgarh

2. CONTENTS
1. Welcome address
2. Q&A SESSION
3. PURPOSE AND FUNCTION
4. SPECIFICATIONS
5. PRE-START CHECKS
6. START PERMISSIVES
7. START SEQUENC
8. PLANNED SHUT DOWNT
9. EMERGENCY SHUTDOWN
10. TRIP CONDITION
11. INTERLOCK-PROTECTION

3. WELCOME-ADDRESS
1. At the end of the training program, you will be able to:
2. Understand and develop comprehensions about:
3. Purpose and function of ID-Fan
4. Basic feature of a ID-Fan, its Permissive, Protections (its rationale),
Breakers, Classifiers.
5. Details of Pre Start Checks & System line up.
6. Criteria for healthiness of breakers Standard Operational Procedure
(SOP) of ID-Fan
7. Develop skills for:
 Performing all activities of Pre Start Checks & System line
 Checking the Permissive, prescribe Protections, healthiness of Breaker,
Classifiers
 Operating ID-Fan as per SOP

4. 1. Why do we need ID-Fan?
2. What types of ID-Fan is in place?
3. What are types of ID-Fan ?
Q&A SESSION

5. PURPOSE AND FUNCTION
1.
Induced draft fans or ID fans are used in systems such as
steam boilers to draw out and remove flue gases from
combustion chambers, by creating a vacuum of negative
air pressure

6. SCHEMATIC OF FAN

7. FAN SPECIFICATION

8. FAN SPECIFICATION

9. MOTOR SPECIFICATION

10. OIL STATION SPECIFICATION

11. PRE-START CHECKS

12. PRE-START CHECKS

13. FAN START PERMISSIVES

14. FAN START SEQUENCE

15. FAN START SEQUENCE

16. SECOND FAN INTO SERVICE

17. ID-FAN SHUTDOWN

18. TRIPPING OF ONE ID-FAN

19. EMERGENCY SHUTDOWN

20. FAN INTERLOCKS

21. Thank You