Table of Contents
Advertisement
R) The SACE SOR TEST UNIT + opening release (YO) is guaranteed to operate starting at 75% of the Vaux of the opening release
itself.
While the YO power supply contact is closing (short-circuit on terminals 4 and 5), the SACE SOR TEST UNIT is unable to
detect the opening coil status.
Consequently:
-
For continuously powered opening coil, the TEST FAILED and ALARM signals will be activated
-
If the coil opening command is of the pulsing type, the TEST FAILED signal may appear at the same time. In this case,
the TEST FAILED signal is actually an alarm signal only if it remains lit for more than 20s.
S) Also available in the version with normally-closed contact
V) If fig. 22 is present (second set of auxiliary contacts) the signalling module PR120/K in figures 46 and 47 cannot be supplied.
Circuit diagram symbols (IEC 60617 and CEI 3-14 ... 3-26 Standards)
Shield
(may be drawn
in any shape)
Time delay
Mechanical or electrical
connection
Manual mechanical control
(general case)
Rotating control
Pushbutton control
Equipotentiality
Galvanically separated
converter
Shielded cable conductors
(i.e., 3 conductors shown)
Conductors or stranded
cables (i.e., 3 conductors
shown)
Connection of conductors
B2342
Model
Terminal
Plug and socket
(male and female)
Motor
(general symbol)
Current transformer
Voltage transformer
Winding of three-phase tran-
sformer, Star connection
Make contact
Break contact with
automatic circuit
breaking
Change-over contact
Make position contact (limit
contact)
Break position contact (limit
contact)
Apparatus
Doc. No
Change-over position con-
tact with momentary circuit
breaking (limit contact)
Power isolator with automa-
tic breaking action
Switch-disconnector
Control coil
(general symbol)
Instantaneous overcurrent
relay
Overcurrent relay with adju-
stable short time-delay trip
Overcurrent relay with inver-
se short time-delay trip
Overcurrent relay with inver-
se long time-delay trip
Current sensing resistors
Fuse (general symbol)
Current sensor
Emax VF
1SDH000909R0001
Scale
Page No
59/66
Advertisement
Table of Contents
