CSD Instruments
DC Earth Fault Location

Engineered in India

Trace the Fault.
Understand Your DC.

Finds an earth fault on a live DC bank without shutting protection down or draining the system.

About the instrument

Built around the
work on site.

DC earth-fault investigation depends on the network layout and operating conditions. Discuss your DC system and maintenance procedures with CSD before confirming the test arrangement and accessories.

01

An earth fault on a substation DC system can stop protection working when it matters most. The T-DCEFL finds it while the system stays live.

02

It injects a small test signal and follows it branch by branch until the faulty circuit is found — no shutdown, no draining of the battery.

03

Finds an earth fault on a live DC bank without shutting protection down or draining the system. The final configuration, accessories and operating method should be reviewed against the actual application and site procedures.

Battery testing inside a substation

Designed for the conditions where the measurement happens.

DC Earth Fault Location

T-DCEFL

DC Earth Fault Location

01

Stays live

No shutdown of protection

02

Branch by branch

Narrows down the faulty circuit

03

Complete kit

Everything in one case