Modular units

Generalities Description of the control/
monitoring & protection functions
Sepam selection guide for all applications
Series 80
b b b b b b b b
b b b b b b b b
b b b b b b b b
Directional
earth fault
AMTED398078EN.indd
Directional
earth fault
and phase
overcurrent
Disconnection
by rate of
change of
frequency
M
Transformer &
transformermachine
unit
differential
Machine
differential
S80 S81 S82 S84
B80 B83
T81 T82 T87
M81 M88 M87
G82 G88 G87
Accurate measurement and detailed diagnosis
b Measuring all necessary electrical values.
b Monitoring switchgear status: sensors and trip circuit, mechanical switchgear status.
b Disturbance recording.
b Sepam self-diagnosis and watchdog.
Flexibility and evolutivity
b Enhanced by optional modules to evolve in step with your installation.
b Possible to add optional modules at any time.
b Simple to connect and commission via a parameter setting procedure.
Voltage and frequency
protection for 2 sets
of busbars
Capacitor-bank
unbalance
0 to 42 0 to 42 0 to 42 0 to 42
5 to 23 5 to 23 5 to 23 5 to 23
0 to 16 0 to 16 0 to 16 0 to 16
3 I + 2 x Io 2 x 3 I + 2 x Io 3 I + Io 2 x 3 I + 2 x Io
3V + Vo 3V + Vo 2 x 3V + 2 x Vo 3V + Vo
b b b b
2 to 4 2 to 4 2 to 4 2 to 4
b b b b
b b b b
b b b b
b b b b
b b b b
Lithium battery Lithium battery Lithium battery Lithium battery
C86
37