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Protection Protection Apparatus Protection System Prudent Utility Practices Reactive Energy Reactive Power Reliability Security Security of Supply Single Contingency Substation The provisions for detecting abnormal conditions on a system and initiating fault clearance or actuating signals or indications. A group of one or more protection relays and/or logic elements designated to perform a specified protection function. A system, which includes equipment, used to protect facilities from damage due to an electrical or mechanical fault or due to certain conditions of the power system. With respect to the distributor, means the exercise of that degree of skills, diligence, prudence and foresight consistent with Electricity Supply Act 1990 and the Regulations, condition of Licence, standards, the Code and the distributor owned standards and practices. A measure, in varhours (varh) of the alternating exchange of stored energy in inductors and capacitors, which is the time-integral of the product of voltage and the out-of-phase component of current flow across a connection point. The product of voltage and current and the sine of the phase angle between them measured in units of volt amperes reactive. The rate at which reactive energy is transferred. In the context of a distribution system is a measure of availability of Adequate and secure supply to the consumers Means security Supply. The ability of the distribution system restore supply to consumers following momentary or temporary interruptions. In respect of a transmission or distribution network, a sequence of related Events which result in the removal from service of one transmission or distribution line, or transformer. The sequence of Events may include the application and clearance of a fault of defined severity. A facility at which two or more lines are switched for operational purposes. May include one or more transformers so that some connected lines operate at different nominal voltages to others. TENAGA NASIONAL B E R H A D 67
Supply Security Total Harmonic Distortion Transformer Distribution System Voltage Dip Voltage Harmonic Distortion Voltage Sag Voltage Sensitive Load Voltage Transformer (VT) Please refer to the term Security Supply. The departure of a wave form from sinusoidal shape, that is caused by the addition of one or more harmonics to the fundamental, and is the square root of the sum of the squares of all harmonics expressed as a percentage of the magnitude of the fundamental frequency. A plant or device that reduces or increases the voltage of alternating current. A distribution system that: () is used to convey, and control the conveyance of, electricity to consumers (whether wholesale or retail); and () is connected to another such system. Transient reduction in voltage magnitude measured as the percentage or per unit reduction of the voltage magnitude to the nominal voltage magnitude. It is the measure of the departure of the a.c. voltage waveform from sinusoidal shape, that is caused by the addition of one or more harmonics to the fundamental. Transient reduction in voltage magnitude measured as the percentage or per unit remaining voltage magnitude to nominal voltage magnitude. A load that will mal-operate on transient distortion of supply voltage sinusoidal waveform. A transformer for use with meters and/or protection devices in which the voltage across the secondary terminals is proportional to and in phase with the voltage across the primary terminals. 68 TENAGA NASIONAL B E R H A D
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Vision To be among the leading c
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CONTENTS SUPPLY APPLICATION 1.0 Ten
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1.0 TENAGA NASIONAL BERHAD ELECTRIC
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e) Elektrik Bestari TNB provides el
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1.10 Types Of Supply Application Al
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1.18 Tariff Please refer to the Tar
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2.4 TNB Supply Lead Time The flowch
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Stage Description 2 TNB Register Ap
Page 18 and 19: Steps Action Reference 2 After appr
Page 20 and 21: Steps 7 8 Action Advise applicant t
Page 22 and 23: CONTENTS Page 1.0 PLANNING FOR C
Page 24 and 25: 1.1.1.1 Technical Requirements For
Page 26 and 27: Should a preliminary examination of
Page 28 and 29: • Capacitance connected in parall
Page 30 and 31: SECTION 2.0 PLANNING AND DESIGN CRI
Page 32 and 33: For the purpose of this guideline,
Page 34 and 35: Table 2.3.4.1: Voltage limits on sw
Page 36 and 37: 2.3.5.6 If under the operating cond
Page 38 and 39: Table X: Planning Levels for Harmon
Page 40 and 41: 3) At the terminals of a Customer
Page 42 and 43: 2.5.3 Protection System Evaluation
Page 44 and 45: 3.2 Group Diversity Group diversity
Page 46 and 47: - 132/33kV, 2 x 90 MVA - 132/22kV,
Page 48 and 49: The establishment of transmission m
Page 50 and 51: CONTENTS Page ABBREVIATIONS .......
Page 52 and 53: 1.0 GENERAL REQUIREMENTS 1.1 All th
Page 54 and 55: ii. iii. iv. The tickness of board
Page 56 and 57: 4.0 GROUP METERING FOR WHOLE CURREN
Page 58 and 59: v. The panel cover and metal plate
Page 60 and 61: 6.2 Specifications For Metering PTs
Page 62 and 63: 6.7.2 Outdoor Breakers A ‘marshal
Page 64 and 65: GLOSSARY AND DEFINITIONS In this gu
Page 66 and 67: Embedded Generating Unit A generati
Page 70 and 71: Appendix Topic Page 1 List of Kedai
Page 72 and 73: Appendix 1 List of Kedai Tenaga in
Page 74 and 75: Appendix 1 List of Kedai Tenaga in
Page 76 and 77: Appendix 3 PERMOHONAN BEKALAN ELEKT
Page 78 and 79: Appendix 5 TENAGA NASIONAL B E R H
Page 80 and 81: Appendix 7 PART B : TNB SUPPLY APPL
Page 82 and 83: Appendix 9 JOINT MEETING ACTION LOG
Page 84 and 85: Appendix 11 SAMPLE OF APPOINTMENT L
Page 86 and 87: Appendix 12 Load Category Total lig
Page 88 and 89: Appendix 13 LOCATION PLAN TENAGA NA
Page 90 and 91: Aku Janji dan Tanggungrugi *Pemilik
Page 92 and 93: Appendix 16 Demand forecast and sub
Page 94 and 95: Appendix 17 SUBSTATION LAYOUT DRAWI
Page 96 and 97: Appendix 18 SITE PLAN / LOCATION PL
Page 98 and 99: Appendix 18 LOGO DETAIL FOR DOUBLE
Page 100 and 101: Appendix 19 (Drawing 7B) MV/HV, 1 O
Page 102 and 103: Appendix 19 (Drawing 7D) 3 FEEDER M
Page 104 and 105: Appendix 19 (Drawing 7F) MV/HV, 3 F
Page 106 and 107: Appendix 19 (Drawing 7H) 1, 2, 3 OR
Page 108 and 109: Appendix 19 (Drawing 7J) 1, 2, 3 OR
Page 110 and 111: Appendix 20 TENAGA NASIONAL B E R H
Page 112 and 113: Appendix 22 DRAWING NO 2A : SINGLE
Page 114 and 115: Appendix 23 DRAWING NO 3A : OUTDOOR
Page 116 and 117: Appendix 25 DRAWING NO 4A : 3 PHASE
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Appendix 25 DRAWING NO 4C : 3 PHASE
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Appendix 26 DRAWING NO. 4E TENAGA N
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Appendix 27 DRAWING NO 5A : SINGLE
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Appendix 27 DRAWING NO 5C : SINGLE
Page 126 and 127:
Appendix 28 DRAWING NO 5E: 3 PHASE
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Appendix 29 TENAGA NASIONAL B E R H
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