13
12
Main circuit terminal
Isolating main contact
Fixed main contact
Moving main contact
Measuring CT
Power CT
Control circuit terminals
Charging motor
Closing coil
Closing spring
Arc chamber
Closing mechanism
Moulded insulating cover
Draw-out arm
Appearance
Appearance and
Internal Construction
2
Internal Construction
Features
1
Communication facility
added to
TemPower2
TemPower2
is equipped with a communication interface
unit that allows data exchange with a host PC via a
Modbus open network. Data communicated includes
measurements, fault log, maintenance information, ON/
OFF status, settings, and control (ON/OFF/RESET) sig-
nals.
Item
Modbus
Transmission standard RS-485
Transmission method
Two-wire half-duplex
Topology
Multi-drop bus
Transmission rate
19.2 kbps max
Transmission distance 1.2 km max (at 19.2 kbps)
Data format
Modbus-RTU or ASCII
Max number of nodes
1 - 32
Cause
Whichever trip functions, LTD, STD, INST,
or GF is activated is then transmitted.
Fault current
The fault current at which the breaker tripped
open is transmitted.
Trip pickup time
The trip pickup time is transmitted.
On-screen PC monitor
Communication network
Modbus
Up to 31 units can be
connected per system
Host network
Host PC
Commercial gateway or PLC
RS485
Fault log
Network interface I/O specifications
Tripping circuit
monitoring
The tripping coil is always monitored for
disconnection. If the breaker is not open within
approx. 300 ms of a trip signal delivered from
the OCR, an alarm signal is generated.
Phase current
The phase current
I
1
,
I
2
,
I
3
,
I
N
,
I
g
and max
current Imax are measured and transmitted.
Line-to-line voltage
V
12
,
V
23
and
V
31
are measured.
Active power
The three-phase power, reverse power and max
power are measured.
Demand active power The demand active power is measured.
Accumulated power The accumulated power is measured.
Power factor
The circuit power factor is measured.
Frequency
The frequency is measured.
Data measurement
Maintenance information
TR
3
ø
750
kVA
6600/460
V
ACB No.
1
Power supply No. 1
Power supply No. 2
Power supply No. 3
Pump
Conveyer
320
418
A
KWh
ON
ON
ON
ON
OFF
Next page
Power Monitoring
ON
729
455
I
1
V
12
95
546
Long time-delay
Short time-delay
Instantaneous
Ground fault
Fault cause OCR status
Fault current
ACB Tripping time
sec.
A
1041
A
V
%
kW
kWh
Power factor
Power
Electric energy
206
364
A
KWh
180
235
A
KWh
0
13
A
KWh
23
11
A
KWh
