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LT Distribution Box for 100 KVA DTR

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LT Distribution Box for 100 KVA DTR

Deep Drawn Sheet Metal LT Distribution Box for Distribution Transformer Centres

This LTDB is designed for safe and efficient distribution from 63kVA to 500 KVA transformers. It combines high-grade enclosures, MCCBs, isolators, and fuses, ensuring uninterrupted operation and easy maintenance. The dimensions vary based on the internal arrangements but the same are manufactured seamlessly without any joints and welding which helps in longer life and less carbon emission

Key Features & Benefits
  • Robust CRCA MS construction with IP-55 protection
  • Equipped with isolators, MCCBs, and fuses
  • Aluminium busbars with DMC insulators
  • Powder-coated finish with ventilation louvers
  • Tested as per IEC/IS standards

Product Technical Details

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  • Applicable Standards: IEC 61439 (LTDB), IS: 13947 (Switchgears), IS: 2147 (Enclosure)
  • Rated Capacity: 63/100 KVA
  • Rated Voltage: 433 V, 3 Phase, 50 Hz (AC)
  • Enclosure
  • Material: CRCA MS (Deep Drawn / Sheet Bending Process)
  • Thickness: 2.0 mm
  • Finish: Powder coated (Light Admiralty Grey) with pre-treatment & phosphating
  • Busbar System:
  • Phase Busbar: EC Grade Aluminium, 25 × 8 mm
  • Neutral Busbar: EC Grade Aluminium, 200 × 5 × 8 mm
  • Earth Busbar: EC Grade Aluminium
  • Insulation: DMC insulator (IS D3 Grade)
  • Isolator (Switch Disconnector)
  • Type: Front Operated, Triple Pole
  • Rating: 200 A
  • Make: L&T / ABB / Havells / Siemens / Schneider / HPL / C&S / Benlo
  • Withstand Capacity: 2 kA for 2 sec
  • Insulation Voltage: 560 V
  • MCCB (Outgoing)
  • Type: Quick Make, Quick Break
  • Rating: 100 A, 160 A, 200 A
  • Poles: SP
  • Breaking Capacity: 10 kA at 0.4 PF (lag)
  • Release: Thermal Magnetic, Fixed Type
  • Make: L&T / ABB / Havells / Siemens / Schneider / HPL / C&S / Benlo
  • HRC Fuse with Base
  • Rating: 200 A, 415 V
  • Base Material: D3 Grade
  • Make: L&T / ABB / Havells / Siemens / Schneider / HPL / C&S / Benlo
  • Lug & Cable Entry
  • Aluminium Lugs: Dowells / AK Metal / HEX / Kaycee / Jainson / RMC
  • Cable Entry: PVC glands with gland plate (in/outgoing provision)
  • Earthing
  • Size & No.: M10, 35 mm length (2 nos. each side with washers)
  • Additional Features
  • Louvers & Ventilation with perforated sheet
  • Stainless steel nameplate & danger marking (red color)
  • Locking arrangement with padlock provision
  • Supplied with full component mounting strip

Technical Specifications

  • Rated Capacity
  • 63/100 KVA
  • Voltage
  • 433 V, 3 Phase, 50 Hz
  • Material
  • CRCA MS, 2.0 mm thickness
  • Ingress Protection
  • IP-55
  • Busbar
  • Aluminium 25 × 8 mm Phase, Neutral & Earth
  • Isolator
  • 200 A TP, reputed makes
  • MCCB
  • 100/160/200 A, 10 kA breaking
  • HRC Fuse
  • 200 A, 415 V
  • Earthing
  • M10 bolts with washers
  • Finish
  • Powder coated (Light Admiralty Grey)

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Certifications & Approvals

RMC is honored to hold prestigious certifications, including ISO 9001:2008, BIS, NABL accreditation, and IEC compliance, along with approvals from leading authorities such as Power Grid Corporation of India, NTPC, and various state electricity utilities.

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Mitigating Power Theft - The MultiMeter Box Solution

 

Problem:

  • Energy Smart meters in Mumbra near Kalyan were
    tampered with to steal power. This was cited by
    Torrent Power as one of the first instance of power
    theft via smart meter tampering. The solution came
    from the introduction to Multi Meter Boxes: These
    cabinets are designed to accommodate multiple
    energy meters (single or three-phase) with a single
    incoming connection. Each meter’s connection ends
    within the box, drastically reducing tampering
    potential. The locked metering chamber houses the
    meters, while outgoing wires connect to an accessible
    chamber for linemen.

 

Multi Meter Box Strategy:

  •  Relocation & Grouping: Position energy meters
    outside consumer premises, especially in areas not
    easily visible from main roads, and cluster them
    together. This setup discourages individual
    tampering.
  • Access Control: Design meters to be inaccessible to
    linemen, allowing only the outgoing connection box
    to be reached. This further reduces chances of
    tampering from inside.
  • Enhanced Security with Multi Meter Boxes: These
    boxes, designed to accommodate multiple energy
    meters (single or three-phase), ensure connections
    end within the box. A locked metering chamber
    safeguards the meters.
  • Shielded Wiring: Wires, both incoming and outgoing,
    are neatly organized and protected within the boxes.
    Cable tray covers are employed to ensure a neat,
    complication-free setup, making them invisible from
    the outside and reducing tampering potential. 

Safeguarding Distribution Transformer Centres in Jaipur

 

Challenge & Government Guidelines:

  •  Rising incidents of public electrocutions due to
    unguarded access to electrical distribution
    infrastructure in Jaipur.
  • Activities like using transformer corners as urinals
    introduced grounding issues, amplifying electrocution
    risks.
  • Central Electricity Authority (CEA) stipulates fencing
    around accessible transformers:
    1. Shield uninformed public and animals from
    electrocution dangers.
    2. Contain potential fires and mishaps within the
    transformer vicinity.
    3. Ward off street vendors and unaware individuals,
    ensuring their safety.
    4. Preserve the cleanliness and functionality of
    transformer areas for lineman safety and repair
    efficacy.

 

Solution & Implementations:

  • The shift to FRP fencing aims to not only safeguard
    the public but also ensure the durability and efficiency
    of the Distribution Transformer Centres.
  • Metal Fencing: Initially adopted across Rajasthan.
    While effective, they were frequently stolen due to
    resale value, posing financial and technical challenges
    for Discom.

FRP (Fibre Reinforced Plastic) Fencing Advantages:

  •  Theft-resistant due to zero resale value
  • Sturdy and equivalent to metal
  •  Minimal maintenance and cost-effective
  • Rust-proof

Reducing Electrical Loss in Maharashtra's High-Density Zones

Problem:

  • Energy meters were situated in deeply recessed, poorly lit areas,making access and reading challenging.
  • Rampant meter tampering incidents were reported. Even when detected, intimidation and threats prevented whistleblowing.
  • Regions like Kalyan, close to Mumbai, witnessed up to 53% power loss primarily due to illicit power theft.

Innovative Solution: 

Introduction of RMC’s Multi Meter Boxes: These units encapsulate 12 meters in a single structure, complicating consumer efforts to single out their individual meters.

  •  By eliminating easy access points, these boxes ensure protection against tampering attempts.

  • Strategically relocating these boxes to main roads achieves dual objectives: simplifying meter reading tasks and reducing tampering. Their public positioning acts as a deterrent, making tampering attempts risky and less likely.

RMC Switchgears Ltd is a Jaipur-based company manufacturing smart energy enclosures, panels, and electrical safety solutions.