Reactive power compensation systems, can be used to compensate sudden voltage drops in the catenary (Booster) or to correct the Negative Phase Shift at the 3-phase grid connection point (Balancer).

Jema Energy can provide you with both TCR SVC and STATCOM solutions.

Important features

• Turnkey solution.
• Highly redundant designs.

Jema Energy designs and manufactures bespoke test benches for traction converters and motors based on the specific requirements of our customers.

Important features

• Test benches for DC converters (up to 4400V) or AC.
• Test benches for universal engines.
• Turn key solution.
• Optional data acquisition systems.

• CAF – Test benches for universal DC converters.
• SNCF – Test benches for universal engines.
• SNCF – 15 kV 16.7 Hz 2 MW test benches.
• Bombardier – Test benches for universal AC and DC converters.

Most trains and electric vehicles have a system that converts braking energy into electrical energy. The electrical power can be stored on board using capacitors or injected into the network catenary.

Jema Energy can provide a system where the braking recovery system can return power to the grid or store it in a persistent storage system.

Systems connected to 750, 1500 or 3000 V for recovering braking energy in DC trains.

Significant features

• Air cooling systems.
• Specific design for cyclical operation.
• High precision in operating ranges for maximising the recoverable energy.