Switchgears

Primary Switching and Protection

The 11kV Vacuum Circuit Breaker (VCB) manufactured by JP Power Switchgear and Control is a critical medium-voltage protection device designed for indoor and outdoor applications. It utilizes vacuum interrupter technology to rapidly and safely extinguish electric arcs that occur when interrupting normal or fault currents. This technology ensures high dielectric strength, a long mechanical life, and minimal maintenance. Our 11kV VCBs provide reliable overcurrent and short-circuit protection to transformers, feeders, and distribution lines, ensuring the stability and integrity of the power network.

11kV VCB (Vacuum Circuit Breaker)

The 11kV Load Break Switch (LBS) manufactured by JP Power Switchgear and Control is a manually or motor-operated switching device used in medium-voltage distribution systems. It is designed to safely make and break (interrupt) normal load currents up to its rated capacity. The LBS does not typically interrupt high fault currents (like a VCB), but it includes fast-acting mechanisms and arc-extinguishing chambers to handle load interruption and line charging currents. It is essential for isolating sections of the network for maintenance or repair, thereby improving system flexibility and reducing outages.

11kV LBS Switch (Load Break Switch)

11kV LBS Switch Panel

The 11kV Ring Main Unit (RMU) Panel manufactured by JP Power Switchgear and Control is a compact, metal-enclosed, and modular switchgear unit used in medium-voltage secondary distribution networks. It integrates multiple switching and protection functions, typically comprising load break switches and circuit breakers Like a VCB within a sealed tank, often using SF6 gas or solid dielectric insulation. This design offers enhanced safety, high reliability, and virtually maintenance-free operation. RMUs are essential for creating flexible, looped (ring) network configurations, which allow a faulted section of the network to be isolated while maintaining power supply to all other sections.

11kV RMU Panel (Ring Main Unit)

Metering and Components

The 11kV High Rupturing Capacity (HRC) Fuse supplied by JP Power Switchgear and Control is a non-rewireable protective device designed for use in medium-voltage systems. The fuse element is enclosed in a body and surrounded by a filling powder, enabling it to interrupt extremely high fault currents (high rupturing capacity) safely and rapidly without explosion or fire. HRC fuses provide essential short-circuit protection for transformers, capacitors, and voltage transformers by operating faster than circuit breakers under massive fault conditions. They are crucial for limiting the damage and stresses on downstream equipment.

11kV HRC Fuses

The 11kV Metering Cubicle manufactured by JP Power Switchgear and Control is a metal-enclosed, compartmentalized unit designed to house high-accuracy instrument transformers Like CT and PT and the necessary electronic metering equipment. This cubicle ensures the precise measurement and billing of electrical energy consumption or generation at the medium-voltage level. It is built to maintain high insulation levels and prevent unauthorized access, guaranteeing the integrity and accuracy required for revenue metering and system monitoring by utility providers and large consumers.

11kV Metering Cubicle

Insulation and Busbar Systems

The 11kV Busbar System Components provided by JP Power Switchgear and Control include crucial insulating and conducting parts necessary for medium-voltage switchgear assembly. Key components like the 11kV Bus Bar Insulator and 11kV Water Bush Insulator are manufactured from materials with high dielectric and mechanical strength. These components provide critical isolation and structural support for the busbars (heavy conductors) that are used to collect and distribute electric power within the switchgear panel. They ensure secure, compartmentalized, and reliable transmission of power to various feeders and equipment.

11kV Bus Bar Insulator

The 11kV Water Bush Insulator supplied by JP Power Switchgear and Control is a specialized insulating component critical for medium-voltage cable entries, particularly where the conductor passes through a panel or wall into an outdoor or challenging environment. Its design ensures a tight, effective seal against moisture, contaminants, and external elements, maintaining the necessary high dielectric strength and electrical isolation around the conductor. This prevents leakage paths and ensures the reliable and safe termination of incoming or outgoing cables.

11kV Water Bush Insulator

The 11kV LBS Switch Insulator manufactured by JP Power Switchgear and Control is a critical component specifically designed to provide robust electrical isolation and mechanical support within the 11kV Load Break Switch (LBS). These insulators separate the live components of the switch from the earthed metal enclosure and ensure the proper functioning and reliable alignment of the switching mechanism. Their high-quality material and design are essential for maintaining the integrity and safety of the LBS during both closed (carrying current) and open (isolation) positions.