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SOCIALIST REPUBLIC OF VIETNAM

Ministry of Industry and Trade (MOIT)

Guideline for

Technical Regulation

Volume 5

Inspection of Power System Facilities

Final Draft

June 2013

Japan International Cooperation Agency

Electric Power Development Co., Ltd.

Shikoku Electric Power Co., Inc.

West Japan Engineering Consultants, Inc.

IL

CR(2)

13-095

 

Table of Contents

 

Part 1 General ..........................................................................................................................

1

Part 2 Organization and System for Operation ....................................................................

2

Chapter 1

Organizational Structure and Duties .................................................................................

2

Chapter 2

Acceptance of Equipment and Plants for putting in Operation.........................................

7

Chapter 3

Personnel Preparation......................................................................................................

12

Chapter 4

Plan for Repair of Equipment, Plant and Construction ...................................................

13

Chapter 5

Safety Technology...........................................................................................................

55

Chapter 6

Fire Prevention Equipment..............................................................................................

62

Part 3 Plan, Houses and Power Plants .................................................................................

67

Chapter 1

Plan..................................................................................................................................

67

Chapter 2

Houses, Power Plant, Technical and Hygienic Equipment .............................................

69

Part 4 Civil Works, Water Sources, and Management of Hydraulic Turbine

 

and Powerhouse ..........................................................................................................

72

Chapter 1

General Provisions ..........................................................................................................

72

Chapter 2

Civil Works and Mechanical Equipment for Civil Works...............................................

80

Section 1

Civil Works ...................................................................................................................

80

Section 2 Check of Civil Works' Condition ..................................................................................

91

Section 3 Mechanical Equipment for Civil Works........................................................................

97

Chapter 3

Management of Water Sources in Powerhouses, Assurance of Meteorology

 

 

and Hydrology.................................................................................................................

98

Section 1

Water Regulation...........................................................................................................

98

Section 2 Environment in Reservoir ...........................................................................................

107

Section 3

Hydro-Meteorological Activities ................................................................................

108

Chapter 4

Hydraulic Turbine / Generator ......................................................................................

112

Part 5 Mechanical and Thermo Equipment of Power Plants ..........................................

117

Chapter 1

General Provisions ........................................................................................................

117

Chapter 2

Fuel Transportation and Supply ....................................................................................

118

Chapter 3

Pulverized Coal Processing...........................................................................................

154

Chapter 4

Boiler and its Auxiliary .................................................................................................

165

Chapter 5

Steam Turbine and its Auxiliary....................................................................................

207

Chapter 6

Unit-type of Thermal Power Plants...............................................................................

239

Chapter 7

Gas Turbine and its Auxiliary........................................................................................

241

Chapter 8

Diesel Generator............................................................................................................

264

Chapter 9

Automation and Thermo-measuring Equipment...........................................................

276

Chapter 10

Water Treatment and Hydration ....................................................................................

287

 

i

 

Chapter 11

Pipelines and Valves......................................................................................................

292

Chapter 12

Auxiliaries for Thermo-mechanical Section .................................................................

295

Chapter 13

Environmental Protection Facilities ..............................................................................

297

Part 6 Electrical Equipment of Power Plants and Grids .................................................

304

Chapter 1

General Provision..........................................................................................................

304

Chapter 2

Generator and Synchronous Compensator....................................................................

305

Chapter 3

Electric Motor ...............................................................................................................

324

Chapter 4

TRANSFORMER, AUTO-CONNECTED TRANSFORMER, AND OIL

 

 

REACTOR ....................................................................................................................

327

Chapter 5

DISTRIBUTION NETWORK......................................................................................

335

Chapter 6

BATTERY SYSTEM ....................................................................................................

341

Chapter 7

OVERHEAD POWER LINES (OPL) ..........................................................................

342

Chapter 8

Power Cable Lines ........................................................................................................

352

Chapter 9

PROTECTIVE RELAYAND AUTOMATION ............................................................

357

Chapter 10

Grounding Equipment...................................................................................................

363

Chapter 11

OVER-VOLTAGE PROTECTION...............................................................................

365

Chapter 12

ELECTRICAL INDICATING AND MEASURING INSTRUMENTS........................

367

Chapter 13

Illumination...................................................................................................................

368

Chapter 14

Hydrogen Generation Station........................................................................................

372

Chapter 15

Energy Oil .....................................................................................................................

376

Part 7 LOAD DISPATCH COMMAND – OPERATION ................................................

392

Chapter 1

LOAD DISPATCH COMMAND..................................................................................

392

Chapter 2

OPERATION ON ENERGIZING AND DE-ENERGIZING ELECTRICAL

 

 

EQUIPMENT................................................................................................................

398

Chapter 3

OPERATOR ..................................................................................................................

398

Chapter 4

DISPATCHING AND CONTROLLING DEVICES ....................................................

399

ii

 

List of Tables

 

Table 5-1

Regulations and standards on environmental protection ...............................................

4

Table 19-1

Sample rating plate of 3 phase induction motor ..........................................................

31

Table 20-1

Size of Letters for Piping.............................................................................................

39

Table 20-2

Comparison of Device Function Numbers (For Reference)........................................

40

Table 22-1

Outline of control and observation method of load dispatch center system ................

50

Table 50-1

Usual monitoring items (example of Japan)................................................................

77

Table 50-2

Emergency inspection items (example of Japan) ........................................................

77

Table 50-3

Recommended Monitoring items ................................................................................

78

Table 50-4

Standard frequency of monitoring...............................................................................

79

Table 50-5

Emergency inspection items........................................................................................

80

Table 93-1

Changeable Operation Mode.....................................................................................

112

Table 93-2

Changeable Operation Rule.......................................................................................

113

Table 119-1

Sample of operation test procedure of start-up light oil pump ..................................

136

Table 124-1

Explosion limit ..........................................................................................................

140

Table 125-1

Relation between soil specific resistance and corrosion behavior of soil..................

142

Table 125-2

Relation between electric potential of oxidation-reduction and bacteria

 

 

corrosion....................................................................................................................

143

Table 126-1

Reaction of human for lack of oxygen ......................................................................

143

Table 129-1

Sample of physical property of BFG & COG ...........................................................

152

Table 131-1

Acceptable stop time for coal pulverizer with remaining coal (sample) ...................

155

Table 140-1

Typical process flow of chemical cleaning................................................................

168

Table 142-1

Sample of water quality management standard.........................................................

175

Table 145-1

Sample of turbine starting mode................................................................................

180

Table 145-2

Sample of boiler starting mode..................................................................................

180

Table 149-1

Sample classification of damage part ........................................................................

185

Table 149- 2

Sample classification of damage cause......................................................................

185

Table 149-3

Relation between boiler damage, root cause, phenomenon and damaged part .........

186

Table 150-1

Sample of spraying pressure......................................................................................

187

Table 150-2

Point to be checked regarding soot blower and countermeasures .............................

187

Table 150-3

Sample operation pattern of soot blower...................................................................

188

Table 154-1

Characteristic of insulation material..........................................................................

199

Table 156-1

Sample of corrosion resistance measures of boiler....................................................

201

Table 162-1

Sample vibration value at alarming and stopping steam turbine...............................

208

Table 174-1

Sample vibration value at alarming and stopping steam turbine...............................

226

Table 178-1

Monitoring items at overload operation ....................................................................

235

Table 179-1

Sample of corrosion resistance measures of steam turbine .......................................

236

iii

Table 185-1

Sample vibration value at alarming and stopping gas turbine...................................

242

Table 218

Examples of loads requiring stable power supply .....................................................

280

Table 228-1

Category of waste water ............................................................................................

291

Table 260

Negative-sequence current limit................................................................................

317

Table 263-1

Warning Value of Vibration (Total amplitude value, Exceeding 400MW)

 

 

(Recommendation) ....................................................................................................

321

Table 266

An example of inspection items (during operation) ..................................................

326

Table 267-1

Main characteristic of Transformer oil (Transformer)...............................................

328

Table 267-2

Main characteristic of Transformer oil (Tap changer) ...............................................

328

Table 275

Maximum Current and temperature limits applicable to loading beyond

 

 

nameplate rating ........................................................................................................

330

Table 276

Time table for recording the load of transformer ......................................................

332

Table 284

Recommended places for installation of facilities for lightning................................

335

Table 286

Maximum permissible temperature of conductor and contact part ...........................

336

Table 287

Growth rate of trees ...................................................................................................

337

Table 296

Inspection and testing for pole...................................................................................

341

Table 304

Sample methods of maintenance and repair each equipment ....................................

343

Table 305

Main factors in the construction design.....................................................................

345

Table 308

Shared information with other agencies and organizations.......................................

346

Table 313

Sample of records of patrol .......................................................................................

349

Table 317

The sample of the record of failure and shortcoming................................................

350

Table 323

Sample methods of maintenance and overhaul for each equipment..........................

352

Table 333

Electrolytic protection ...............................................................................................

355

Table 339-1

Categorization of equipment in operation .................................................................

357

Table 339-2

Categorization of equipment in repair and maintenance ...........................................

358

Table 340

Description item and content of operation and maintenance by law.........................

359

Table 343-1

Units in charge of inspection of protective relay devices..........................................

361

Table 343-2

Units in charge of inspection of automatic load-dispatching equipment...................

361

Table 374-1

A part of horizontal minimum maintained illuminances ...........................................

369

Table 380-1

Effect thresholds for exposure to reduced oxygen.....................................................

376

Table 384-1

An example of classification of insulating oil ...........................................................

378

Table 384-2

An example of classification of insulating oil ...........................................................

379

Table 385-1

Sample aspect of hydraulic system oil.......................................................................

381

Table 388

Consideration matters of developing the equipment outage program .......................

394

Table 394

Consideration matter when system stop is adjusted ..................................................

396

iv

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