Changeover Panel

A Changeover Panel (or Manual Transfer Switch) manufactured by JP Power Switchgear and Control is a Low-Tension (LT) control panel used to manually switch an electrical load between two distinct power sources—typically the Main Utility Grid and a Diesel Generator (DG) or alternative source. Unlike an automated system, the operator physically moves a switch handle or lever to break the connection with one source before making the connection with the other, ensuring safety and controlled power transfer.

Key Features

Dual Input: Designed to accept power from two separate sources (e.g., Grid and Generator).
Switching Mechanism: Contains a robust switching mechanism (e.g.,MCBs, ACBs, or a specialized changeover switch) with three positions: Source 1 (Grid), OFF (Isolate), and Source 2 (DG).
Mechanical Interlocking: Features mandatory mechanical and/or electrical interlocking to ensure that both sources cannot be connected simultaneously.
Protection Devices: Includes protection (like fuses or $\text{MCB}$s) on the control circuits and sometimes includes overcurrent protection on the main circuits.
Indications: Equipped with lamps/indicators to show the availability and status of both the main and generator power sources.

Applications

The Changeover Panel is used in various settings where a manual operation for backup power is sufficient or preferred:

Small to Medium Commercial: Shops, small offices, petrol stations, and small clinics.
Residential/Housing: Individual homes or small apartment blocks where an operator can manually start the generator and operate the switch.
Agricultural: Farms and irrigation systems powered by a single DG set.
Where Cost is Critical: Projects where the high cost and complexity of a fully automatic AMF panel are not justified.

Why Choose JP Power Changeover Panels?

Safety Interlocking: We prioritize safety with fail-safe mechanical and electrical interlocking, strictly preventing back-feeding to the grid and protecting personnel and equipment from dangerous short circuits.
Robust Components: Utilizing high-grade $\text{MCCB}$s or specialized LBS mechanisms, our panels are built for high electrical and mechanical endurance to withstand repeated switching cycles.
Clear Status Indication: Panels include clear and reliable indicators, allowing the operator to quickly and safely verify the status and availability of both the grid and DG power.
Custom Configuration: We design the panel to precisely match the current rating and number of poles required for your specific application, ensuring a perfect fit with both your main and backup power systems.

Changeover Panel