janitza UMG-512-PRO Installationsaleitung Seite 11

Voltage measurement Voltage measurement
6 6
The device has 4 voltage measurement inputs The device has 4 voltage measurement inputs
and is suitable for various connection variants. and is suitable for various connection variants.
Measurement via 2 current transformers in a three-phase
or L1 Measurement via 2 current transformers in a three-phase
L1
3-conductor network with symmetric loading.
e 3-conductor network with symmetric loading.
L2
L2
m m
L3
L3
L1
L1
Risk of injuries or damage to Risk of injuries or damage to
N
N
L2 L2
the device the device
L3 L3
CAUTION! CAUTION!
N
N
Failure to observe the connection conditions Failure to observe the connection conditions
for the voltage measurement inputs can cause for the voltage measurement inputs can cause
injuries to you or damage to the device. injuries to you or damage to the device.
Therefore, note the following: Therefore, note the following:
2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
• Do not connect the voltage measurement • Do not connect the voltage measurement
I I L L L N
I I I 4w 2i L L L
2 1 3 2 3 4w 2i 1 2 1 3 2 3
inputs inputs
2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2
- to DC voltage. - to DC voltage.
I I L L L N
I I I L L L
2 1 3 2 3 4w 2i 4w 2i 1 2 1 3 2 3
- Do not use for voltage measurement in - Do not use for voltage measurement in
he
SELV circuits (safe extra low voltage). SELV circuits (safe extra low voltage).
Measurement in a three-phase 4-conductor network
Measurement in a three-phase 4-conductor network
or • Voltages that exceed the allowed network • Voltages that exceed the allowed network
with asymmetric loading. with asymmetric loading.
rated voltages be connected via a voltage rated voltages be connected via a voltage
TT
L1
transformer. transformer. L1
L2
• The voltage measurement inputs are to • The voltage measurement inputs are to L2
L3
L3
ons. be equipped with a suitable, labelled fuse L1 be equipped with a suitable, labelled fuse
L1
N
and isolation device located in the vicinity. and isolation device located in the vicinity. N
L2 L2
L3 L3
N
N
 
NOTE! NOTE!
As an alternative to the fuse and circuit As an alternative to the fuse and circuit
breaker, you can use a line safety switch. breaker, you can use a line safety switch.
2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
I I L L L N
I I I 4w 2u L L L
2 1 3 2 3 4w 2u 1 2 1 3 2 3
2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2
I I L L L N
I I I L L L
2 1 3 2 3 4w 2u 4w 2u 1 2 3
1 2 3
Confi guration
13 Confi guration
13
L1 L1 L1 L1
L1 Measurement in a three-phase 3-conductor network L1 Measurement in a three-phase 3-conductor network
After the power returns, the device displays the with asymmetric loading. with asymmetric loading.
After the power returns, the device displays the
L2 L2
L2 L2
L2 L2
fi rst measured value indication "Home".
fi rst measured value indication "Home".
L3 L3
L3 L3
L1 L3 L1 L3
L1 L1 L1 L1
L2 L2
L2 L2
L2 L2
• Press button 1 "ESC" to access the
• Press button 1 "ESC" to access the
L3 L3
L3 L3
L3 L3
"Confi guration" menu: "Confi guration" menu:
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
3w 2m 3w 2m S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 3w 2m S1 S2 S1 S2 S1 S2 3w 2m S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2m 3w 2m
L L L L L L L L L L N N L L N I N I I I I I I I I I I I
L I L I hv hv N I L I hv hv 1 N I I 2 I 1 I 3 I 2 I 3 I L 1 L L 2 1 L 3 L 2 N L 3
1 2 1 3 2 hv 3 hv 1 2 1 3 2 3
3 2 2 1 3 3 2 1 3 2 1 3 2 3 1 2 1 3 2 3
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2m 3w 2m S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
3w 2m 3w 2m S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
3w 2m 3w 2m
I I I I I L L L L L N L
L 2 L 1 hv N 3 L 2 L L hv N I 3 L L L L I L I L L L I N hv I N L L I N I hv 1 N I I 2 I I 1 I I 3 I I 2 I I 3 I
hv hv 1 2 1 3 2 3 1 2 1 3 2 3
3 2 3 1 1 2 1 2 3 1 2 3 2 3 3 1 2 1 3 2 3
Measurement in a single-phase 3-conductor network. Measurement in a single-phase 3-conductor network.
rk.
I3 and U3 are not calculated and set to zero. I3 and U3 are not calculated and set to zero.
L1 L1 L1 L1
L1 L1
L2 L2
L2 L2 Fig. "Main menu"
L1 L2 Fig. "Main menu" L1 L2
L1 L1 L1 L1
• Use buttons 3 and 4 to select the menu entry • Use buttons 3 and 4 to select the menu entry
L2 L2
L2 L2
L2 L2
to be adjusted in the "Confi guration" menu.
to be adjusted in the "Confi guration" menu.
• Confi rm the selected menu entry by pressing
• Confi rm the selected menu entry by pressing
button 6 "Enter"!
button 6 "Enter"!
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2  
NOTE!
NOTE!
L L L L L L L L L L N N L L N I N I I I I I I I I I I I
L I 2w 2m L I N I L I 2w 2m 1 N I I 2 I 1 I 3 I 2 I 3 I L 1 L 2 L 1 L 3 L 2 N L 3
2w 2m 2w 2m 1 2 1 3 2 3 1 2 1 3 2 3
1 3 2 1 2 3 2 3 3 1 2 1 3 2w 2m 2 2w 2m 3 1 2 1 3 2 3
Detailed information on all menu entries and their settings can be found in the user manual.
Detailed information on all menu entries and their settings can be found in the user manual.
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
I I I I I L L L L L N L
L 2 L 1 N 3 L 2 L L N 3 I L L L L I L I L L L I 2w 2m N I N L L I 2w 2m N I N 1 I I 2 I I 1 I I 3 I I 2 I I 3 I
2w 2m 2w 2m 1 2 1 3 2 3 1 2 1 3 2 3
1 2w 2m 3 2 2w 2m 3 1 1 2 1 2 3 1 2 3 2 3 3 1 2 1 3 2 3
L1 L2 L3 L1 N PE L2 L3 N PE
L1
L1 Measurement in a three-phase 3-conductor network L1
L1 Measurement in a three-phase 3-conductor network
with asymmetric loading.
with asymmetric loading.
L2
L2
L2
L2
L3
L3
L3
L1 L3 L1 L1
L1
L2
L2 L2
L2
Fuse Fuse
L3
L3 L3
L3
(UL/IEC listed) (UL/IEC listed)
Circuit Circuit
breaker breaker
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
L L L 3w 3m N
I I I L 3w 3m L
N I I I 3w 3m 3w 3m 1 2 3
1 2 1 3 2 3 1 2
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2
L L L N
I I I L 3w 3m L
N I I I 3w 3m 1 2 3w 3m 3
1 2 1 3 2 3 3w 3m 1 2
Fig. "Voltage measurement"
Measurement in a three-phase 3-conductor network
Measurement in a three-phase 3-conductor network
connection example.
with asymmetric loading. with asymmetric loading.
The voltage measurement inputs are designed for The voltage measurement inputs are designed for L1 L1
L1
L1
measurements in low voltage networks, in which the measurements in low voltage networks, in which the L2
L2
L2 L2
following rated voltages occur: following rated voltages occur: L3
L3
L3
L1 L3 L1 L1
L1
• Per IEC - 417 V phase to earth and 720 V phase • Per IEC - 417 V phase to earth and 720 V phase
L2
L2 L2
L2
to phase in the 4-conductor system. to phase in the 4-conductor system.
L3
L3 L3
L3
• Per UL - 347 V phase to earth and 600 V phase to • Per UL - 347 V phase to earth and 600 V phase to
phase in the 4-conductor system. phase in the 4-conductor system.
• 600 V phase to phase in the 3-conductor system. • 600 V phase to phase in the 3-conductor system.
The measurement and surge voltages meet The measurement and surge voltages meet
overvoltage category 600 V CATIII. overvoltage category 600 V CATIII.
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
L L L 3w 2u N
I I I L 3w 2u L
N I I I 3w 2u 3w 2u 1 2 3
1 2 1 3 2 3 1 2
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2
L L L N
I I I L L 3w 2u
N I I I 3w 2u 1 2 3 3w 2u
1 2 1 3 2 3 3w 2u 1 2
The device requires the mains frequency The device requires the mains frequency
(range from 15 Hz to 440 Hz) to measure and (range from 15 Hz to 440 Hz) to measure and
Press button 1 "ESC" to change back to the
Press button 1 "ESC" to change back to the
calculate measured values. calculate measured values.
higher menu level.
higher menu level.
It is not necessary to confi gure connection It is not necessary to confi gure connection
The "Communication" menu entry takes you to
The "Communication" menu entry takes you to
schematics for measurement inputs V4 and I4. schematics for measurement inputs V4 and I4.
the following window: the following window:
 
NOTE! NOTE!
Further information on Further information on
• supporting measurements via inputs • supporting measurements via inputs
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
N I I I I I I
1 2 1 3 2 3 V4 (L4) and I4, and V4 (L4) and I4, and
• current data and current transformer • current data and current transformer
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
N I I I I I I
1 2 1 3 2 3
data data
is provided in the user manual. is provided in the user manual.
Fig. "Communication" window Fig. "Communication" window
Your device has 1 Ethernet interface and 1 Your device has 1 Ethernet interface and 1
RS485 interface (fi eld bus) for communication,
RS485 interface (fi eld bus) for communication,
which can be adjusted in the "Communication"
which can be adjusted in the "Communication"
window.
window.
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
N I I I I I I
1 2 1 3 2 3
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
N I I I I I I
1 2 1 3 2 3
Schematic diagram for voltage measurement
7 7
Voltage measurement in the three-phase
four-conductor system (TN, TT networks).
L1 L1 L1 L1
L1 L1 Note: Earth your system!
L2
L2 L2 L2
L2 L2
L3
L3 L1 L3 L3
L1 L1 L3 L1 L3
L1 L1
L2
L2
L2 L2
L2 L2
L3
L3
L3 L3
L3 L3
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
L L L N I I I
L 1 I L 2 L L I L 3 L L I N L L L N I N 1 L I 2 I I L I 3 I I N I L I I L I L
L 3w 3m 1 N 2 1 I 3 2 I 3 I 1 2 L 1 3 L 2 L 3 N L
3w 3m 1 1 2 2 3 3w 3m 3 3w 3m 1 2 1 3w 2i 3 2 3w 2i 3 1 1 2 2 3
3 1 2 3 1 2 3 1
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
L L L N I I
L L I L L L I L L L 3w 3m I N N L I N 1 I I 2 I L I I 3 I L I L L I N 1 L 2 L
L 1 N L 2 I L 3 I L I 3w 3m N 1 2 I 1 3 I 2 I 3 L
3w 3m 1 1 2 2 1 3 3 2 3 1 2 1 3 3w 2i 2 3 1 2 3
3w 3m 3 1 1 2 2 3 3 1 2 3 3w 2i 1
Fig. "Voltage measurement" Earthing
of the
connection example.
system
L1 L1 L1 L1
L1 L1
L2
L2 L2 L2 L2 L2
Fig. Schematic diagram, device in a TN network.
L3
L3 L1 L3 L3
L1 L1 L3 L1 L3
L1 L1
L2
L2
L2 L2
L2 L2 
L3
L3
L3 L3
L3 L3
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 3w 2u 3w 2u S1 S2 S1 S2 S1 S2
L L L N I I I
L 1 I L 2 L L I L 3 L L I N L L L N N I 1 L I 2 I I L I 3 I I N L I I L I L I
L 3w 2u 1 N 2 1 I 3 2 I 3 I 1 2 L 1 hv 3 L 2 L 3 N L
3w 2u 1 1 2 2 3 3w 2u 3 3w 2u 1 2 1 3 2 hv 1 3 1 2 2 3
3 1 2 3 1 2 3 1
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2u 3w 2u 3w 2u
L L L N I I
L L I L L L I L L L I 3w 2u N N L I 1 N I I 2 I L I I 3 I L I L L I N L 1 L 2
L 1 N L 2 I L 3 I L I 3w 2u N 1 2 I 1 hv 3 I 2 I 3 L
3w 2u 1 1 2 2 1 3 3 2 3 1 2 1 3 2 1 hv 3 2 3
3 3w 2u 1 1 2 2 3 3 1 2 3 1
Residual current monitoring (RCM) via I5 and I6
10 10
Communication via Ethernet interface (TCP/IP)
14
14
The device has 3 types of address allocation for the
Ethernet interface (TCP/IP) in DHCP mode:
1. OFF (fi xed IP address)
2. BOOTP
3. DHCP
Standard setting for the device is DHCP!
 The device is suitable for use as a residual
current monitoring device (RCM) to monitor
• AC
• DC and
• pulsing DC.
11 / 14
Schematic diagram for voltage measurement
Voltage measurement in the three-phase
four-conductor system (TN, TT networks).
L1
L1 Measurement in a three-phase 3-conductor network L1 L1 L1 L1
Note: Earth your system! Measurement in a three-phase 3-conductor network L1 L1
with asymmetric loading.
with asymmetric loading.
L2
L2 L2
L2 L2 L2
L2 L2
L3
L3 L3
L3 L1 L3 L3
L1 L1 L1 L1 L3 L1 L3
L1 L1 L1 L1 L1 L1
L2
L2 L2
L2 L2 240V L2 240V
L2 347V/600V 50/60Hz 347V/600V 50/60Hz L2
L2 L2
L3
L3 L3 50/60Hz 50/60Hz
L3 L3 L3
L3 L3
L3 L3
N N N N
PE PE
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2
L L L N I I I
3w 2i I N L 1 I L 2 L L I L 3 L L I N L L L N N I 1 L I 2 I I L I 3 I I L N I I L I
I L 3w 2i I L 3w 2i 1 I N 2 1 I 3 2 I 3 I 1 2 L 1 3 L 2 L 3 N L
3 3w 2i 1 1 2 2 3 3w 2i 3 3w 2i 1 2 3w 2m 1 3 2 3w 2m 1 3 2 1
1 2 2 3 3 1 2 3 1 2 3 1
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
V4 V1 V4 V2 V1 V3 V2 Vref V3 Vref
I L L L N I
I 3 N I L L I I L L L I L L L I 3w 2i N N L I N 1 I AC/DC I 2 I L I AC/DC I 3 I L I L L I L N 1
L 1 3w 2i 2 L 1 3 N 2 L I L 3 I L I N 3w 2i 1 2 I 1 3 I 2 I 3 L
3w 2i 3w 2i 1 1 2 2 1 3 2 3 3 1 2 3w 2m 1 3 2 1 3 2
2 3 3w 2i 1 1 2 2 3 3 1 2 3w 2m 3 1
DC DC
Earthing
Measurement in a three-phase 3-conductor network of the
Measurement in a three-phase 3-conductor network
Voltage measurement Voltage measurement
system
with asymmetric loading. with asymmetric loading.
UMG 512-PRO UMG 512-PRO Auxiliary supply Auxiliary supply
L1 L1
L1 L1 L1 L1
L1 L1
L2
L2 L2
L2 L2 L2
Fig. Schematic diagram, device in a TN network.
L3
L3 L3
L3 L1 L3
L1 L1 L1 L1 L3 L1
L1 L1
L2 N
L2 L2 N
L2 L2
 L2
RECOMMENDATION! RECOMMENDATION!
L3
L3 L3
L3 L3
L3
For a PE/N measurement, connect the For a PE/N measurement, connect the
N
N
protective earth (PE) to measurement protective earth (PE) to measurement
input V4. Do not use a green and yellow input V4. Do not use a green and yellow
wire for this as the conductor does not wire for this as the conductor does not
have any protective function! have any protective function!
S1 S2 S1 S2 S1 S2
3w 2u S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
3w 2u 3w 2u S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
3w 2u S1 S2 S1 S2 S1 S2 3w 2u 3w 2u
L L L N I I I
hv hv N I L hv 1 I L 2 L L I L 3 L L I N L L L N I N 1 L I 2 I I L I 3 I I N L I I L I
L I L I hv 1 I N 2 1 I 3 2 I hv 3 I 1 2 L 1 3 L 2 L 3 N L
3 1 1 2 2 3 3 hv 1 2 2w 1m 1 3 2 2w 1m 1 3 2 1
1 2 2 3 3 1 2 3 1 2 3 1
3w 2u S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
3w 2u S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2u S1 S2 S1 S2 S1 S2
3w 2u 3w 2u S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
I L L L N I
I hv N 3 I L L I I L L L I L L L I N hv N L I N 1 I I 2 I L I I 3 I L I L L I L N 1
L 1 hv L 2 1 hv N 3 L 2 I L 3 I L I N hv 1 2 I 1 3 I 2 I 3 L
1 hv 1 2 1 2 3 3 2 3 1 2 2w 1m 1 3 2 1 3 2
2 3 1 1 2 2 3 3 1 2 2w 1m 3 1
Residual current monitoring (RCM) via I5 and I6
Communication via Ethernet interface (TCP/IP)
"Residual current monitoring "Residual current monitoring
via current transformer" via current transformer"
The device has 3 types of address allocation for the
connection variant connection variant
Ethernet interface (TCP/IP) in DHCP mode:
1. OFF (fi xed IP address)
The user selects the IP address, network mask
The user selects the IP address, network mask PE N L1 PE L2 L3 N L1 L2 L3
and gateway on the device. Use this mode for and gateway on the device. Use this mode for
straightforward networks without DHCP servers.
straightforward networks without DHCP servers.
2. BOOTP
Automatically integrates your device into an
Automatically integrates your device into an
existing network. BOOTP is an older protocol and
existing network. BOOTP is an older protocol and
has a smaller scope of functions than DHCP. has a smaller scope of functions than DHCP.
3. DHCP
When started, the device automatically receives
When started, the device automatically receives
the IP address, the network mask and the gateway
the IP address, the network mask and the gateway
from the DHCP server.
from the DHCP server.
Load Load
Standard setting for the device is DHCP!
The device is suitable for use as a residual 
NOTES!
NOTES!
current monitoring device (RCM) to monitor
• Find out the Ethernet network settings for your
• Find out the Ethernet network settings for your
• AC
device from your network administrator.
device from your network administrator.
• DC and
• The description of additional communication
• The description of additional communication
• pulsing DC.
interfaces can be found in the user manual for
interfaces can be found in the user manual for
your device.
your device.
• For more information about connection
• For more information about connection
and communication of your device with the
and communication of your device with the
software, see the quick guide of software software, see the quick guide of software
GridVis®.
GridVis®.
Voltage measurement in the three-phase three- Voltage measurement in the three-phase three-
conductor system (IT network). conductor system (IT network).
L1
L1 Measurement in a three-phase 3-conductor network L1 L1 L1 L1
The device is only suitable for use in IT networks The device is only suitable for use in IT networks Measurement in a three-phase 3-conductor network L1 L1
with asymmetric loading.
with asymmetric loading.
L2
L2 L2
L2 L2 L2
to a limited extent, as the measured voltage to a limited extent, as the measured voltage L2 L2
L3
L3 L3
L3 L1 L3 L3
relative to the housing potential is measured and L1 L1 relative to the housing potential is measured and L1 L1 L3 L1 L3
L1 L1
L2
L2 L2
the input impedance of the device creates residual L2 the input impedance of the device creates residual L2 L2
L2 L2
L3
L3 L3
current against the earth. The residual current can L3 current against the earth. The residual current can L3 L3
L3 L3
trigger insulation monitoring in IT networks. trigger insulation monitoring in IT networks.
Connection variants with voltage transformers Connection variants with voltage transformers
are suitable for IT networks without are suitable for IT networks without
restrictions! restrictions!
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2m 3w 2m
L L L N I I I
L 3w 2m I N I L 1 I L 2 L L I L 3 L L I N L L L N I N 1 L I 2 I I L I 3 I I N L I I L
3w 2m L I L 3w 2m I 1 N I 2 1 I 3 2 I 3 I 1 2 L 1 hv 3 L 2 L 3 N
3 2 3 3w 2m 1 1 2 2 3w 2m 3 3 3w 2m 1 2 1 3 2 hv 1 3
2 1 3 2 3 1 2 3 1 2 3
L1 L1
600V 50/60Hz 600V 50/60Hz
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
L2 L2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2m 3w 2m
I I L L L N
L 2 I N 3 L I L I L I L L I L L L 3w 2m I N N L I 1 N I I 2 I L I I 3 I L I L L I N L
3w 2m L 1 L 2 1 N 3 L 2 I L 3 I L I 3w 2m N 1 2 I 1 hv 3 I 2 I 3
3w 2m 3 3w 2m 1 1 2 1 2 3 3 2 3 1 2 1 3 2 hv 1 3
2 3w 2m 3 1 1 2 2 3 3 1 2 3
L3 L3
Measurement of one phase in a three-phase 4-conductor network. Measurement of one phase in a three-phase 4-conductor network.
Impedance Impedance
L1 L1
L1 L1 L1 L1
L1 L1
L1 L2
L1 L1 L1 L1 L1 L2
L1 L1
V4 V1 V4 V2 V1 V3 V2 Vref V3 Vref
N
N N N N
N
AC/DC AC/DC
Earthing of Earthing of
L2
L2
the system the system
DC DC
N
N N N N
N
Voltage measurement Voltage measurement
Auxiliary supply Auxiliary supply
UMG 512-PRO UMG 512-PRO
S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
Fig. Schematic diagram, device in an IT network without N. Fig. Schematic diagram, device in an IT network without N. S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
L L L N I I I
L I 2w 1m N I L 1 I L 2 L L I L 3 L L I N L L L N N I 1 L I 2 I I L I 3 I I N L I I
2w 1m L I L 2w 1m I 1 N I 2 1 I 3 2 I 3 I 1 2 L 1 3 L 2 L 3 N
3 2 3 2w 1m 1 1 2 2 2w 1m 3 3 2w 1m 1 2 1 2w 2m 3 2 2w 2m 3 1
2 1 3 2 3 1 2 3 1 2 3
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2
I I L L L N
L 2 I N 3 I L L I I L L L I L L L 2w 1m I N N L I 1 N I I 2 I L I I 3 I L I L L I N
2w 1m L 1 L 2 1 N 3 L 2 I L 3 I L I 2w 1m N 1 2 I 1 3 I 2 I 3
2w 1m 3 2w 1m 1 1 2 2 1 3 3 2 3 1 2 1 2w 2m 3 2 1 3
2 2w 1m 3 1 1 2 2 3 3 1 2 2w 2m 3
The UMG 512-PRO measures residual currents The UMG 512-PRO measures residual currents
in accordance with IEC/TR 60755 (2008-01), in accordance with IEC/TR 60755 (2008-01),
Type A Type A
Suitable residual current transformers with Suitable residual current transformers with
a rated current of 30 mA are connected to a rated current of 30 mA are connected to
terminals 4 and 5 (I5) and terminals 6 and 7 terminals 4 and 5 (I5) and terminals 6 and 7
(I6). (I6).
 
NOTE! NOTE!
• The transformation ratios for • The transformation ratios for
the residual current transformer the residual current transformer
inputs can be confi gured using the inputs can be confi gured using the
GridVis® software. GridVis® software.
• The "Energy Analyser 512-PRO • The "Energy Analyser 512-PRO
with residual current monitoring with residual current monitoring
via measurement inputs I5/I6" via measurement inputs I5/I6"
connection variant and further connection variant and further
information are provided in the information are provided in the
user manual. user manual.
• It is not necessary to confi gure • It is not necessary to confi gure
a connection schematic for a connection schematic for
measurement inputs I5 and I6. measurement inputs I5 and I6.
8
L1
L1 L1 L1
L2
L2 L2
L2
L3
L3 L3
L3
L1 L1 L1
L1
L2
L2 L2
L2
L3
L3 L3
L3
3w 2m
3w 2m 3w 2m S1 S2
S1 S2 S1 S2 S1 S2 3w 2m
L L
I L I hv hv N I L 1 I L
L L I L I 1 hv hv N I
2 1 3 2 3 1
1 2 1 3 2 3
S1 S2 S1 S2 S1 S2
3w 2m S1 S2
3w 2m 3w 2m 3w 2m
I I I
1 L 2 I hv N 3 I L L I I L L
L L hv 1 L 2 hv 1 N 3
2 3 hv 1 1 2
1 2 3
L1 L1
L1 L1
L2
L2 L2
L2
L1 L1 L1
L1
L2
L2 L2
L2
S1 S2
S1 S2 S1 S2 S1 S2
L
L I L I 2w 2m I N L 1 I L
L 2w 2m L I L I 2w 2m 1 N I
2 1 2 3 3 2w 2m 1
1 1 2 2 3 3
S1 S2 S1 S2 S1 S2
S1 S2
I I I
L 1 L 2 I N 3 I L L I I L
L 2w 2m L 1 L 2 1 N 3
2 2w 2m 3 2w 2m 1 1
1 2 2w 2m 3
11
15