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1.1.1.1 Technical Requirements For Connection For connections at Low Voltage the consumer’s installation shall comply with the Electricity Supply Act 1990 and any regulations made there under and Malaysian Wiring Regulations and any requirements specified by TNB based on Malaysian MS-IEC Standards. In the case of connections to Consumers at Low Voltage, TNB has the responsibility to specify any technical requirements for the connection. This includes specification of technical requirements associated with loads which may give rise to voltage fluctuations and harmonics. 1.1.2 Supplies at 275kV, 132kV, 33kV, 22 kV, 11kV and 6.6kV For supplies at voltages of 275kV, 132kV, 33kV, 22kV, 11kV and 6.6kV, the Consumer shall provide comprehensive information on the loads and their characteristics including but not limited to the following: a) For all types of loads: (i) Maximum Active Power consumption in kW; and (ii) Maximum Reactive Power consumption in kVAR. b) For motor loads: (i) Types of control equipment; (ii) Methods of starting; (iii) Magnitude and duration of the starting current; (iv) Frequency of starting (number/hour); (v) Under voltage setting and time; (vi) Negative phase sequence protection; and (vii) Sub-transient and/or locked rotor reactance of the motor. c) For nonlinear loads with harmonic current injections: (i) Harmonic current spectrum including harmonic number and the corresponding maximum current. d) For fluctuating loads: (i) The rates of change of Active Power and Reactive Power consumption in kW/minute and kVAR/minute respectively, both increasing and decreasing; (ii) The shortest repetitive time interval between fluctuations for Active Power and Reactive Power in minutes; and (iii) The magnitude of the largest step changes in Active Power and Reactive Power in kW and kVAR respectively, both increasing and decreasing. TENAGA NASIONAL B E R H A D 23
e) f) For voltage sensitive loads: (i) steady-state voltage tolerance limits of the equipment in percentage of the nominal voltage; (ii) intrinsic immunity limits to short duration voltage variation; (iii) transient voltage tolerance limits of the equipment in percentage of the nominal voltage and the corresponding duration; (iv) harmonic current emission limit for equipment. For Shunt Connected Reactors and Capacitors: (i) configuration and sizes of individual banks; (ii) types of switching and control equipment; and (iii) types of harmonic filtering reactors. Should a preliminary examination of the above data indicate that a more detailed information is required, the consumer shall provide the information upon request by TNB. TNB upon receipt of the data and information should perform assessments of the impacts of the loads on TNB’s distribution system. Consumers shall then be advised on TNB’s design of supply scheme and other technical requirements to be complied with by the consumers to ensure system performance is within the limits or standard. 1.1.3 Supplies To Embedded / Distributed Generators 1.1.3.1 Planning Data Requirements For Connection Of Embedded / Distributed Generators Embedded / distributed generator installations are treated as a different consumer class. For the purposes of planning the connection of a Distributed Generator to the Distribution System, TNB requires sufficient information to model the generating plant and carry out engineering studies for determining the method of connection to be employed, the voltage level of connection and its impacts on the Distribution System. The Distributed Generator shall provide the following information to TNB for planning purposes. (a) For all Generating Units (i) Terminal voltage; (ii) Rated kVA; (iii) Rated kW; (iv) Maximum Reactive Power sent out or minimum lagging power factor; (v) Maximum Reactive Power absorbed or minimum leading power factor; (vi) Type of Generating Unit – synchronous, asynchronous, etc. (vii) Type of prime mover; (viii) Type of voltage control; (ix) Generating Unit sub-transient reactance; (x) Generating Unit transformer details; (xi) Requirements for Top-Up Supply and/or Standby Supply. 24 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 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 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
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Appendix 1 List of Kedai Tenaga in
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Appendix 3 PERMOHONAN BEKALAN ELEKT
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Appendix 5 TENAGA NASIONAL B E R H
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Appendix 7 PART B : TNB SUPPLY APPL
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Appendix 9 JOINT MEETING ACTION LOG
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Appendix 11 SAMPLE OF APPOINTMENT L
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Appendix 12 Load Category Total lig
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Appendix 13 LOCATION PLAN TENAGA NA
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Aku Janji dan Tanggungrugi *Pemilik
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Appendix 16 Demand forecast and sub
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Appendix 17 SUBSTATION LAYOUT DRAWI
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Appendix 18 SITE PLAN / LOCATION PL
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Appendix 18 LOGO DETAIL FOR DOUBLE
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Appendix 19 (Drawing 7B) MV/HV, 1 O
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Appendix 19 (Drawing 7D) 3 FEEDER M
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Appendix 19 (Drawing 7F) MV/HV, 3 F
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Appendix 19 (Drawing 7H) 1, 2, 3 OR
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Appendix 19 (Drawing 7J) 1, 2, 3 OR
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Appendix 22 DRAWING NO 2A : SINGLE
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Appendix 23 DRAWING NO 3A : OUTDOOR
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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
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Appendix 28 DRAWING NO 5E: 3 PHASE
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