Page 59 - Sace Emax 2 Catalogue

t
Extremely Inverse
Very Inverse
Standard Inverse
t
8
Extremely Inverse
Very Inverse
Standard Inverse
t
t
U8
UV
U8 I I 8
t8 UV
V PROTECTION TRIP UNITS 3/35
t8
V
t
t
OV
U9
U9 OV
t8 t9
V
t8 t9
V
t
t
UF
f12
f12
t12 UF
t12
f 03
t12
t12
f Overfrequency (OF - ANSI 81H): with constant trip time (t = k), function is tripped when network fre-
t
quency exceeds the set threshold.
t
f13 OF
f13 OF
t13
f
t13
f
mean Voltage unbalance (VU – ANSI 47): with constant trip time (t = k), protects against an unbalance be-
tween the voltages of the individual phases that are protected by the circuit- breaker.
mean voltage unbalance
U14
U14 voltage unbalance
U1 U2 U3
U1 U2 U3
V1
V1 Residual current (Rc – ANSI 64 & 50NDT): with constant temperature (t=k) protects against indirect
senso ciclico
L1 L2
contacts and is integrated into Ekip Touch LSIG with Measurement Enabler with voltage sockets by a
senso ciclico
dedicated residual current rating plug and external toroid. The protection is an alternative to the func-
V3 V2
tions G and Gext.
V3 V2
LOAD
Reverse active power (RP - ANSI 32R): with constant trip time (t = k), function is tripped when total ac-
tive power – in the opposite direction of the current - exceeds the set threshold.

M