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Beranda Gardu Induk Ringkas Gardu Induk Ringkas TNB
Gardu Induk Ringkas TNB
Gardu Induk Ringkas TNB

Gardu Induk Ringkas TNB

Model: TNB
Layanan OEM dan ODM: Tersedia
Kandang: Standar PINEELE
Merek: PINEELE, Merek di Bawah ZHENGXI
Formulir: Tipe Semua Paket
Lingkup Aplikasi: Cocok untuk distribusi daya industri, stabilisasi tegangan, dan perlindungan transformator. Banyak digunakan pada bangunan komersial, pabrik, dan gardu utilitas.
Ditinjau oleh: Zheng Ji, Insinyur Listrik Senior di PINEELE
18+ tahun pengalaman dalam desain & pengujian switchgear HV.
Diterbitkan Pada: Maret 31, 2025
Terakhir diperbarui: Maret 31, 2025
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What Is a Compact Substation (TNB Type)?

A Compact Substation (CSS) is a fully enclosed prefabricated unit that integrates a medium-voltage switchgear, distribution transformerdan low-voltage switchboard into one weatherproof enclosure. The TNB-compliant CSS is specifically engineered to meet the design, safety, and installation requirements of Tenaga Nasional Berhad (TNB) — Malaysia’s national electricity utility.

Gardu Induk Ringkas TNB

Used widely in Malaysia’s power distribution system, TNB-style compact substations offer fast deployment, space efficiency, and reliable operation in urban, commercial, and industrial environments.


TNB Compact Substation Standards

Compact substations designed for use in TNB networks must comply with the following:

  • TNB Technical Guidebook (latest edition)
  • IEC 62271-202 – High-voltage switchgear and controlgear – Prefabricated substation
  • IEC 60076 – Power transformers
  • TNB Specification No: TNBES 198, 201, 203 (project-dependent)
  • Suruhanjaya Tenaga (Energy Commission) electrical safety code
  • Local authority approvals (e.g., SIRIM, ST registration)
Gardu Induk Ringkas

Typical Configuration of TNB Compact Substation

ComponentDeskripsi
MV Switchgear11kV SF6-insulated RMU (typically 3 or 4-way), TNB-approved brand
Transformator315–1000 kVA, 11/0.433kV oil-immersed sealed type (ONAN)
LV SwitchboardOutgoing MCCBs, metering panel, CTs, and terminals for low-voltage loads
EnclosureCompartmentalized mild steel or stainless-steel structure (IP54–IP65)
VentilationNatural or forced air, louvers, and filters
Cable TerminationBottom-entry cable ducts, earthing bar and links
ProtectionSurge arresters, protection relays, fault indicators
Lighting & SocketInternal service lighting, 13A plug, exhaust fan (optional)

Standard Ratings

SpesifikasiNilai
Rated Power315 kVA / 500 kVA / 630 kVA / 1000 kVA
Tegangan Primer11 kV
Tegangan Sekunder400/230 V
Frekuensi50 Hz
CoolingONAN (Oil Natural Air Natural)
Kelas IsolasiClass A / B
Perlindungan KandangIP54 (minimum), IP65 (optional)
Temperature Rise≤ 60°C on windings
EarthingTN-S or TT system compliant

Design Features of TNB-Approved Compact Substation

  • Three-compartment structure (MV, Transformer, LV) with individual access doors
  • Internal arc-tested RMUs with SF6 insulation
  • Corrosion-resistant enclosure with epoxy powder coating
  • HV & LV compartments separated by metallic barriers
  • TNB-type lock and interlock systems for safety
  • Forced-air ventilation optional in high-load zones
  • Lifting hooks, base frame, and anti-vibration pads for transport and installation
  • Pad-mounted or skid-mounted options available
Gardu Induk Ringkas

Area Aplikasi

TNB Compact Substations are widely used in:

  • Residential developments (terrace housing, condominiums)
  • Commercial areas (malls, supermarkets, retail parks)
  • Light industrial parks and SME zones
  • Government facilities and schools
  • Urban substations and transformer upgrading projects
  • Renewable energy projects connected to the 11kV grid
  • Temporary power supply in construction and mobile applications

Advantages of TNB Compact Substation

Hemat ruang: All-in-one design ideal for urban or limited-space environments
Quick Installation: Factory-assembled and pre-tested before delivery
TNB Compliance: Meets all utility specifications for fast approval
Safety Assured: Arc-proof, compartmentalized, and interlock-secured
Minimal Civil Work: Requires only a level concrete pad
Kustomisasi: Available with solar-ready features or hybrid modules
Low Maintenance: Sealed transformer and RMU reduce site servicing needs


Maintenance & Inspection

TNB recommends periodic inspection and maintenance to ensure substation reliability:

  • Visual inspection of transformer tank, bushings, and oil level
  • Cleaning of air vents and filters in the enclosure
  • Infrared scanning of LV terminations (annually)
  • Functional testing of MCCBs, relays, and indicators
  • Oil dielectric strength (BDV) test every 3–5 years

Price Range in Malaysia (2024–2025)

As of current market estimates, a TNB-compliant 315–1000 kVA compact substation costs approximately:

RM 85,000 – RM 180,000
(subject to configuration, transformator rating, RMU brand, and materials)


The Gardu Induk Ringkas TNB type is the ideal solution for medium-voltage to low-voltage step-down transformation in Malaysia. Designed to meet TNB’s strict standards, these substations offer reliable performance, compactness, and easy integration into residential, commercial, or light industrial zones.

With factory-tested modular design, built-in safety features, and full compliance with TNB and IEC requirements, compact substations are the smart choice for modern power distribution infrastructure in Malaysia.

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