ESSAR POWER (ORISSA) LTD 4 X 30 MW CPP

Revision No : 00TURBINE SOP

Doc No: EPOrL / COMMISSIONING

ESSAR POWER (ORISSA) LIMITED

2X30 MW CPP, PARADEEPStandard operating procedureSteam Turbine

INDEX

SR NO.CONTENTSPAGE

1INTRODUCTION 2

2TECHNICAL SPECIFICATION3-9

3SAFETY CHECKLIST10

4COOLING WATER AND AUX COOLING WATER CHARGING11-12

5OIL SYSTEM START UP12-14

6.BARRING GEAR START UP14-15

7TURBINE AUXILLIARY EQUIPMENT START UP15-16

8STEAM LINE CHARGING AND VACCUM BUILD UP16-18

9DEFINITION OF HOT, COLD STARTUP18-20

10TURBINE COLD STARTUP AND SYNCHRONIZATION 21-25

11TURBINE RE START FROM WORK CONDITION26

12TURBINE PROTECTION AND INTERLOCKS27-28

1. INTRODUCTION

The purpose of the Turbine system is to convert the heat energy in the steam from generator into kinetic energy & to drive the TG train.

The SST300 C160 Turbine is a single flow turbine with 15 stage & downward exhaust. When admission steam reaches the turbine, it first passes through an emergency shut off valve (ESV) with steam strainer & then continues to a control valve. A hydraulic servomotor controls the steam valve.

G.A. DAIGRAM

2 TECHNICAL SPECIFICATION

Design Data Make :Siemens Limited Type of Turbine : Single cylinder, single flow exhaust, Non-reheat, condensing Model :SST300 C-160 No. of stage :15 Rotor blade type :Impulse/reaction Rotor weight :4750 Kg Distance between brg centers :2798 mm Journal dia. (NDE bearing):179.63 mm Journal dia. (DE bearing):199.67 mm

Turbine Output Rated :32.450 MW

Speed Rated (Turbine):7059 RPM (100%) Rated (Generator) :1500 RPM (100%) Emergency Trip (Turbine) :7765 RPM (110%) First Critical Speed :3460 RPM

Direction of Rotation Seen Turbine Generator :CCW (Counter clock wise)

Live Steam Pressure Rated :63 Ata Temperature Rated :460C Flow :124.49 TPH

Exhaust To Condenser Pressure :0.100Ata Temperature :45.5C Flow :112.46 TPH

Bleed 1 Pressure :3.71 Ata Temperature :140.5C Flow :12.03 TPH

CONDENSER: (Thermal Design) Design data Make :Siemens Limited Type : Single Pressure, Two Pass, Under Slung, Circular surface condenser Condensing Surface Area :3290 m2 Cleanliness Factor:85% No. of Passes :2 Plugging Margin :5% Cooling Water Velocity :2.07 m/s Pressure Drop :