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- 132/33kV, 2 x 90 MVA - 132/22kV, 2 x 60 MVA - 132/11kV, 2 x 30 MVA b. Main Distribution Sub-station (Pencawang Pembahagian Utama- PPU) Main Distribution Sub-station is normally applicable to 33kV for interconnecting 33kV networks with 11kV networks. It provides capacity injection into 11kV network through a standardized transformation of 33/11kV. c. Main Switching Station (Stesyen Suis Utama- SSU) SSU at 33kV, 22kV and 11kV are established to serve the following function:- 1. To supply a dedicated bulk consumer ( 33kV, 22kV, 11kV) 2. To provide bulk capacity injection or transfer from a PMU/PPU to a load center for further localized distribution. d. Distribution Substation (Pencawang Elektrik – P/E) Distribution sub-stations are capacity injection points from 11kV, 22kV and sometimes 33kV systems to the low voltage network (415V, 240V). Typical capacity ratings are 1000kVA, 750kVA, 500kVA and 300kVA. Conventional substation designs are of indoor type (equipment housed in a permanent building) and out-door type (ground-mounted or pole-mounted). Standardized M & E design of 11/. 433kV sub-station is available at TNB offices. Compact substation (11/. 415kV) has limited application and is to be strictly applied in selective situations under the following circumstances:- • System reinforcement projects for highly built-up areas where substation land is difficult to acquire. • Any request to use compact substation for dedicated supply to a single or limited group of low voltage consumers is subject to TNB approval in accordance to site constraints situation, and to be considered as ‘special feature design schemes’. The main reasons for the above application criteria are as follows:- • Compact design reduces future system flexibility in terms of network expansion. • Compact design features, which limits the capacity of outgoing circuits. TENAGA NASIONAL B E R H A D 45
4.2.2 Land Or Building Size Requirements For Sub-Stations Table 4-2 : Land and building size requirements for sub-stations Note: Set-back Substation Category Transmission Main Intake/ Pencawang Masuk Utama (PMU): (a) 132/33/11kV Transmission Main Intake/ Pencawang Masuk Utama (PMU): (a) 132/33/11kV Main Distribution Substation (PPU) (a) /11kV (b) /11kV Main Distribution Substation (PPU) (a) /11kV (b) 22/11kV Main Switching Substation (SSU) (a) kV (b) kV (c) kV Distribution Substation (P/E) (a) /.415kV (b) /.415kV (a) JKR : On all Federal and State Routes: 20.1m (66ft) from center of road + 15.0m (50ft) for service road to substation site. Type Gas Insulated Switchgear (GIS) Without outdoor switchyard Air Insulated Switchgear (AIS) With outdoor switchyard (b) Local Authority/City Council/Jabatan Perancang Bandar : 6.1m (20ft) for building line + other requirements as requisitioned by Local Authority/City council/Jabatan Perancang Bandar. (c) LLM (Malaysian Highway Authority): As requisitioned by LLM. Land Size (Average Dimensions – NOT inclusive of Land Set-back Requirements) 60.0m x 80.0m 130.m x 130.0m Indoor type 46.0m x 46.0m Outdoor switchyard 130.0m x 130.0m Building Size (Average Dimensions) Customized design to match land size building bylaws Customized design to match land size building bylaws Customized design to match land size building bylaws Customized design to match land size building bylaws Conventional 31.0m x 31.0m 24.0m x 9.1m Conventional (a) Single chamber (Appendix 17) (b) Double chamber (Appendix 18) 14.63m x 14.63m 7.67m x 5.72m 17.68m x 14.63m 10.67m x 5.72m (c) Compact substation 5.0m x 5.0m 2.5m x 2.0m 46 TENAGA NASIONAL B E R H A D
Page 2 and 3: Vision To be among the leading c
Page 4 and 5: CONTENTS SUPPLY APPLICATION 1.0 Ten
Page 6 and 7: 1.0 TENAGA NASIONAL BERHAD ELECTRIC
Page 8 and 9: e) Elektrik Bestari TNB provides el
Page 10 and 11: 1.10 Types Of Supply Application Al
Page 12 and 13: 1.18 Tariff Please refer to the Tar
Page 14 and 15: 2.4 TNB Supply Lead Time The flowch
Page 16 and 17: 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 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 68 and 69: Protection Protection Apparatus Pro
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
Page 118 and 119:
Appendix 25 DRAWING NO 4C : 3 PHASE
Page 120 and 121:
Appendix 26 DRAWING NO. 4E TENAGA N
Page 122 and 123:
Appendix 27 DRAWING NO 5A : SINGLE
Page 124 and 125:
Appendix 27 DRAWING NO 5C : SINGLE
Page 126 and 127:
Appendix 28 DRAWING NO 5E: 3 PHASE
Page 128 and 129:
Appendix 29 TENAGA NASIONAL B E R H
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