Download Measuring and monitoring relays Phase sequence – phase failure

Measuring and monitoring relays
Phase sequence – phase failure relays SPW 1004, SPW 1005
interface
Three-phase – phase sequence – phase failure relays without auxiliary
supply voltage
• Detection of incorrect phase sequence
• Detection of phase voltage imbalance
• Phase failure detection even at back-voltage with or without phase shift
• Rated voltage of three-phase current adjustable to 3 AC 380 V, 400 V, 415 V
with corresponding undervoltage detection of one, two or all three phases
• Closed-circuit principle, reaction time 35 ms for each fault detection
• Contact assignment: SPW 1004 2 change-over contacts, SPW 1005 1
change-over contact
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Applications
• Monitoring of three-phase current network fault on machines or systems, such as:
• Processing machines, palletizing systems, packaging machines
• Machines with reversal of rotational direction
• Escalators and elevator systems
• Pumps and compressors
• Air conditioning and ventilation systems
Circuit diagram
Function
The SPW devices monitor their external line voltages
(their own three-phase power supply) L1, L2, L3 for:
• Phase sequence in clockwise rotation
• Phase failure
• Phase voltage imbalance
• Phase shift
• Undervoltage
After applying the external line voltages L1, L2, L3 and with correct three-phase
current parameters, the SPW switches into the ON position (closed-circuit principle).
The green LED lights up. If one of the above mentioned conditions is not fulfilled, the
relay will remain in or switch into its OFF position. The SPW operates without auxiliary
supply voltage and neutral connection. The rated voltage for the three-phase current
networks can be pre-selected in 3 ranges – 3 AC 380 V, 400 V, 415 V – analog with a
potentiometer on the front of the device. If a fault occurs, the relay will switch into its
OFF position with a reaction time of 35 ms. The green LED will extinguish. After the
fault has been removed, the SPW automatically switches into its ON position and the
LED lights up.
Fault detection occurs at:
• Incorrect phase sequence
• Phase failure of 100%, such as wire breakage in the lines leading to the device
• Phase failure even at back-voltage up to 85%
• Undervoltage detection up to 20% of one, two or all three phases, related to the
adjusted voltage of 3 AC 380 V, 400 V, 415 V
• Phase voltage imbalance above 15%
• Phase shift of one phase compared to the other phases
The two devices differ in their contact assignments. The SPW 1004 is fitted with two
change-over contacts, while the SPW 1005 is fitted with one change-over contact.
Subject to change without further notice
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Measuring and monitoring relays
Phase sequence – phase failure relays SPW 1004, SPW 1005
interface
interface
System
Application example
Monitoring of a system
The SPW monitors the pre-selected rated voltage range of the three-phase current
in a system. If the SWP 1004 reports a fault such as an incorrect phase sequence, a
voltage imbalance, an undervoltage or a phase failure, the relay K2 will switch into the
OFF position. The system is switched and the PLC evaluates the message systemspecifically.
Function diagram
Dimension diagram
Phases L1, L2, L3
for DIN rail according to EN 50022
Incorrect phase sequence
Phase failure L1 or L2 or L3
Imbalance
Undervoltage
LED TRIPPED
15/18;25/28 (25/26/28)
15/16;25/26 only SPW 1004
tA = response value
tR = release value
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Subject to change without further notice
Measuring and monitoring relays
Phase sequence – phase failure relays SPW 1004, SPW 1005
interface
SPW 1004
SPW 1005
Three-phase imbalance – phase sequence – phase failure relays,
Closed-circuit principle
1 LED green
FD 0079 W1
Technical data
Type of function according to DIN EN 60255-6:11.94
Function control
Function diagram
Power supply circuit
Rated voltage UN
Rated consumption set to 50 Hz and UN (AC)
Rated consumption set to 50 Hz and UN (AC)
Rated frequency
Operating voltage range
Measuring circuit
Setting range of the rated voltage UN
Settings
Undervoltage detection
Phase voltage imbalance
Phase shift
Phase failure with feedback
Dispersion
Influence of the supply voltage
Influence of the ambient temperature
Hysteresis for undervoltage detection
Hysteresis for phase voltage imbalance
Output circuit
Contact assignment
Contact material
Rated operating voltage Un
Max. continuous current In per contact
Application category according to EN 60947-5-1:1991
3 AC
3 AC 380 – 400 – 415 V
analog
≈ 80 % UN
≥ ± 10 % bis ≤ ± 15 %
≈ ± 6 °
– 85 % Uoperation
≤ ± 0.5 %
≤ ± 0.02 % / % ∆UN
≤ ± 0.05 % / K∆T
≈ 25 V
≈ 15 V
Short circuit protection; max. fuse insert class gG
Permissible switching frequency
Mechanical life
Response time tA
Release time tR
Hysteresis for undervoltage detection
Hysteresis for phase voltage imbalance
General data
Creepage distances and clearances between the circuits
Rated impulse voltage
Overvoltage category
Pollution degree
Rated voltage
Test voltage Ueff 50 Hz according to DIN VDE 0110-1, table A.1
Protection degree housing/terminals according to DIN VDE 0470 sec. 1:11.92
Noise immunity according to IEC 61000-4
Ambient temperature, operating range
Dimension diagram
Circuit diagram
Connector cross sections fine-stranded / solid
or fine-stranded with ferrules
Permissible tightening torque
Weight
Accessories
Approvals
Overview of devices/Part numbers
Type
SPW 1004
SPW 1005
Subject to change without further notice
380, 400, 415 V
3.8 VA
3.5 W
50 – 60 Hz
0.7 – 1.15 x UN
Rated voltage
3 AC 380 – 415 V
3 AC 380 – 415 V
2 change-over contacts
1 change-over contact
Ag alloy, gold-plated
AC/DC 230/230 V
5A
AC-15: Ue 230 V AC, Ie 3 A
DC-13: Ue 24 V DC, Ie 2 A
6A
≤ 6000 switching cycles/h
30 x 106 switching cycles
< 25 ms ± 10 ms depending on the phase position
< 100 ms
≈ 25 V
≈ 15 V
according to DIN VDE 0110-1:04.97
6 kV
III
3 outside, 2 inside
500 V AC
3.25 kV
IP 30 / IP 20
Test severity 3
–20 – +60 °C
S7–5
KS 0236/1
2 x 0.75 – 1.5 mm2 / 2 x 0.75 – 2.5 mm2
1 or 2 x 0.5 – 1.5 mm2
0.8 – 1 Nm
0.26 kg
–
KS 0276/1
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50 – 60 Hz
50 – 60 Hz
Part number
R3.183.0040.0
R3.183.0050.0
Std. Pack
1
1
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