11 KV HT Switchgear ( LBS)

For Quotation Please Contact:

Mobile/WhatsApp: +880 1816 553327 "or" +880 1730848516

E-Mail: "info@merlintechbd.com "or" sales.merlin18@gmail.com"

Supply of Sheet Steel clad, dust and vermin proof, free standing, floor mounting, Siemens Gray POWDER COATED, indoor type, 11kV HT Switchgear. 11KV, 50Hz, three phase,  630 A hard drawn electrolytic copper busbars equipped with:

 1 No. 630 A, 12 KV, breaking current 20KA (3 sec.), TP Load Breaking Switch with automatic Triping mechanism whenever any of the fuse blow

2 Nos. Cast resin insulated, double pole, Potential Transformer, ratio: 11/0.110 KV, Class 0.5, 50 VA (for open-delta connection)

1 No. TP MCB of adequate rating for PT Scondary protection.

3 Nos. Cast resin insulated, 11 KV dry type double core CT with Ratio: 30/5A, With suitable accuricy class and burden

• Core 1 : 10 VA, Class 0.5M5
• Core 2 : 15 VA, Class 10P10

3 Nos. Ammeter, 0 - 30 A.

1 No. Voltmeter, 0 - 15 KV, with selector switch

3 Nos. 63A HRC fuses

2 Nos. Indicating Lamps ON / OFF

1 No. Panel Heter Auto Control

Origin : F & G, Germany.

Assembled & Tested by:  Merlin Tech (MERLIN)

Switchgear serves essential functions including protection by interrupting short-circuit and overload fault currents while maintaining service to unaffected circuits. It provides isolation from power supplies and enhances system availability by enabling multiple sources to feed a load.

This protective equipment is utilized for both low voltage and medium voltage systems, commonly for 11kV applications. It incorporates a Load Break Switch (LBS) mechanism rated for 630A and features an overcurrent protection scheme using HRC fuses. The panel comprises three Current Transformers (CT) and three Potential Transformers (PT) for measuring system current and voltage. HRC fuses safeguard against overloads or short circuits. Additionally, the panel includes three Ammeters and a Voltmeter with a selector switch for comprehensive monitoring.

Constructed in a metal-clad design using high-grade steel, ensuring adequate thickness for safety and security, the panel measures 900mm x 1000mm x 1800mm and weighs approximately 450kGs.

Key Features:

• Long, maintenance-free operation
• Fully metal-clad design
• Horizontal isolation capability
• Very high operating reliability
• Simple maintenance and inspection procedures
• High dynamic and thermal strength
• Incorporates special Bottle Arc-chutes for safety
• Current interruption without visible arcs
• Utilizes a straightforward driving mechanism