Elmec EVduty EVCCS - Current Sensing Types; Upstream Sensing; Parallel Sensing

7
Two different types of current sensing are possible.
Upstream
With this configuration, current sensors
measure the total current consumed by
all electrical equipment powered
by the main electrical panel.
EVCCS
module
EVCCS
module
Charging
station
Charging
station
Other
electrical
equipment
Equivalent
electrical
equipment
Electrical panel
Electrical panel
Main circuit breaker
200A
Main circuit breaker
200A
Branch circuit breaker
40A
Branch circuit breaker
40A
Branch circuit breaker
XXA
Branch circuit breaker
40A
Parallel
With this configuration, current sensors
measure the current consumed
by an equivalent electrical equipment
(whose branch circuit breaker
has the same value as the breaker
protecting the charging station).
Current sensing type
Figure4: Example of an "Upstream" current sensing type
Figure5: Example of a "Parallel" current sensing type