LT Switchgear

Integrated Power & Engineering designs, manufactures, and supplies Low Tension (LT) Switchgear systems engineered for safe, stable, and efficient low-voltage power distribution. Our LT panels are developed for 415V AC, 3-phase, 4-wire, 50Hz systems, supporting reliable operation across residential, commercial, and industrial power networks throughout Bangladesh.

Designed in line with standard electrical engineering practice, our LT switchgear configurations are transformer-capacity based at the incomer level and load-distribution based at the outgoing feeder level, ensuring correct protection coordination, operational safety, and long service life.

Product Overview

LT Switchgear forms the central low-voltage distribution point in any electrical system. It receives power from distribution transformers and auxiliary sources such as DG sets, UPS systems, or solar inverters, and distributes it safely to downstream circuits through protected feeders.

Our LT panels are designed to:

  • Ensure controlled switching and isolation
  • Protect against overloads, short circuits, and earth faults
  • Support reliable power distribution with minimal downtime
  • Enable future system expansion and integration

LT Switchgear Product Range

Integrated Power & Engineering offers a complete range of LT panels, including:

  • Main LT Panel (MLTP)
  • Power Control Center (PCC)
  • Motor Control Center (MCC)
  • Distribution Boards (DB / SDB / LDB)
  • Changeover Panels & ATS (Grid–DG–UPS)
  • Feeder Pillars (Indoor / Outdoor)
  • Busbar Trunking Systems (BBT)
  • DG Synchronizing & Load Sharing Panels

Panels can be supplied in fixed type or draw-out construction, depending on operational and maintenance requirements.

Technical Specifications

Rated System Voltage

  • 415V AC, 3-phase, 4-wire

Frequency

  • 50Hz

Rated Current

  • Up to 6300A, based on transformer capacity and system design

Short-Circuit Withstand

  • Up to 65kA for 1 second, subject to system fault level

Enclosure Protection

  • IP42 / IP54 / IP65 (Indoor & Outdoor options)

Busbar System

  • Electrolytic copper / aluminium
  • Fully shrouded and colour-coded
  • Designed for thermal and fault withstand requirements

Standards & Compliance

Designed and manufactured in accordance with:

  • IEC 61439 / IS 8623
  • IEC 60947
  • Project-specific and utility technical requirements

Typical LT Switchgear Lineup Philosophy

Transformer-Rated Incomer & Load-Based Outgoing Feeders

Main Incomer Section

  • ACB / MCCB selected based on transformer kVA and fault level
  • Busbar sizing matched to rated current and temperature rise limits
  • Electrical isolation and protection coordination
  • Digital metering (V, A, kW, kWh, PF, Hz) as required

Bus Coupler Section (Optional)

  • Used for dual incomer systems or bus sectionalizing
  • Enhances operational flexibility and maintenance safety

Outgoing Feeder Section

  • Feeders grouped by load category (DBs, MCC, HVAC, lifts, pumps, critical loads)
  • MCCB / MCB protection with selective coordination
  • Provision for spare feeders and future expansion

APFC Section (Optional)

  • Automatic power factor correction
  • Improves power quality and reduces reactive power penalties

Source Integration (Project-Based)

  • DG synchronizing or ATS panels
  • UPS-backed critical feeders
  • Solar inverter integration
  • SCADA / BMS-ready monitoring (optional)

Key Design Advantages

  • High operational safety and reliable fault protection
  • Modular and scalable design philosophy
  • Smart metering and monitoring options
  • Energy-efficient operation with APFC integration
  • Custom-engineered layouts matched to site constraints

Typical Applications

  • Residential & Commercial Buildings
  • Hospitals, Universities, and Campuses
  • Shopping Malls & IT Parks
  • Industrial Plants & Manufacturing Units
  • Data Centers & Telecom Facilities
  • Hotels, Airports & Metro Systems
  • Infrastructure & Utility Services

Why Choose Integrated Power & Engineering?

  • Local manufacturing and technical support in Bangladesh
  • Certified components (Schneider / ABB / Siemens or approved equivalents)
  • Custom designs aligned with transformer rating and load profile
  • End-to-end support from design to after-sales service
How is the LT incomer rating selected? +
The incomer rating is selected based on transformer capacity, system fault level, and expected loading, ensuring safe operation and protection coordination.
How are outgoing feeders configured? +
Outgoing feeders are designed according to actual load distribution such as lighting, HVAC, MCC motors, lifts, pumps, and critical loads.
What is the difference between PCC and MCC panels? +
PCC panels distribute power to feeders and sub-panels, while MCC panels are dedicated to motor control with starters and motor protection devices.
Can LT panels integrate DG, UPS, and solar systems? +
Yes. LT switchgear can integrate DG through ATS or synchronizing panels, UPS-backed feeders, and solar inverter connections.
What short-circuit ratings are available? +
LT panels can be designed up to 65kA for 1 second, based on system fault calculations.
Is APFC mandatory in LT switchgear? +
APFC is optional but recommended where power factor improvement and energy efficiency are required.
Do you offer fixed and draw-out type panels? +
Yes. Fixed type panels are economical, while draw-out type panels improve maintenance safety and reduce downtime.
Do you provide testing and commissioning support? +
Yes. We provide routine testing, installation guidance, commissioning assistance, and after-sales service across Bangladesh.

Phone: +880 1713117974, +880 1717180660
E-mail: info@substationequipments.com, faruqipe36@gmail.com.com
Address: 165/7 West Rajashion, Birulia Road, Savar, Dhaka, Bangladesh.

Facebook

Copyright © Integrated Power & Engineering