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Conform to:IEC60947- 5- 1standard
DVS-2000 User manual
Digital 3 phase voltage monitoring relay
Features
Settings
Microprocessor based
LCD indication for measured voltage and faults
Overvoltage, undervoltage, phase failure, asymmetry and
phase sequence protection
45Hz~65Hz wide measuring frequency
True RMS measurement, measuring accuracy: <1%
Menu setting for protection parameter
Auto-reset / manual reset selectable
N phase failure protection for 3-phase 4-wire system
Press key MD for 3s to enter menu:
Model
Overvoltage setting
DVS-2000
Blank: 3phase 3wire
N: 3phase 4wire
S: digital display
Overvoltage delay setting
DVS-2000 Relay
Technical Data
3phase 3wire : AC200V~500V
Rated supply voltage
Undervoltage setting
3phase 4wire : AC125V~300V
45Hz~65Hz
Rated frequency
3phase 3wire : 6V
Hysteresis
3phase 4wire :5 V
Time for phase failure and
incorrect phase sequence
）
Undervoltage delay setting
≤ 0.2s
Voltage measuring error
<1%(over the whole range)
Time delay error
±1%+0.1s
Rated insulation voltage
Max.fuse ratings
RT36-00 5A
Contacts capacity
Ith:5A; AC-15: AC240V/1.5A AC415V/0.95A
Protection degree
Pollution degree
Ip20
Electrical life
10 5
Mechanical life
10 6
Altitude
Operating temperature
≤ 2000m
Permissable relative humidity
≤50% at 40o
Storage temperature
Mounting
- 25o ~ 55o
Function
Overvoltage
Overvoltage delay
Undervoltage
Undervoltage delay
Asymmetry
Asymmetry delay
Phase sequence
Start/reset delay
Auto-reset
415V
Phase sequence setting
3
-5
o
~ 40
Asymmetry setting
o
(without condensation)
DIN Rail
Asymmetry delay setting
Settting range Step adjustment Factory setting
Note
1V
437V
3phase 3wire
OFF-221V~300V
1V
253V
3phase 4wire
0.1~20s
0.1s
2s
260V~379V-OFF
1V
OFF-381V~500V
150V~219V-OFF
1V
323V
187V
0.1~20s
0.1s
2s
OFF-5%~20%
0.1~20s
1%
8%
0.1s
ON-OFF
0.3~30s
Start/reset delay setting
3phase 3wire
3phase 4wire
2s
Auto-reset setting
ON
0.1s
ON-OFF
0.3s
ON
ON: the function is on，OFF: the function is off.
Press
to change the parameters, it changes
fast if the keys pressed for a long time.
When setting parameters, the relay will exit the menu if
no key is pressed for 60s.
-1-
Display
Asymmetry monitoring
Description
L1-L2 phase, change phase by pressing the key
Asy%
Hysteresis
0%
Indication for normal state, flashes when start/reset delay actived
Indication for faults, the output relay is off
Indication for menu setting
11
Indication for overvoltage fault or overvoltage parameter setting
Indication for undervoltage fault or undervoltage parameter setting
14
Ta
Tr
<Ta
12
Tr: Start/reset time delay
To: overvoltage time delay
Tu: undervoltage time delay
Ta: asymmetry time delay
Indication for phase sequence fault or phase sequence parameter setting
Indication for phase failure fault
Indication for asymmetry fault or asymmetry parameter setting
Test
Dimensions
Press key T /R for 0.5s to test the relay
12
11
11
14
Unit: mm
36
12
14
L2
L3
66.5max
L1
MD
T/R
the pressing of the key can work only with normal supply.
When testing, other keys will not be available.
35.5
14
11
12
90
Three phase voltage readable
Press key MD to read the three phase voltage
Wiring diagrams
3phase 3wire
3phase 4wire
U> setting ( take 450V for example)
12
11
12
11
14
12
11
14
14
Notice
Function diagrams
1. The relay should be installed ,operated and maintained by qualified personnel.
2. Don’t disassemble or repair the product whether it operates normally, or no
responsibility is assumed by manufacturer and seller.
3. Please refer to the wiring diagram when connection.
4. Don’t assemble input wire together with strong electric wire in the same pipe.
If necessary, please use shielded wire to avoid affecting the operation of the
relay.
5. Don’t use the relay at the site which can be invaded by corrode gas, strong
sunshine light and rain
6. There is 12 months guarantee on the product.
Phase failure and phase sequence monitoring
Phase sequence
phase failure
L1
L2
L1
L3
L1
L3
L2
L2
L2
L1
L3
L3
11
Tr
14
Tr
Tr
LOAD
LOAD
Tr
12
Overvoltage and undervoltage monitoring
Warning
- Turn power off before installing,
Threshold U>
Hysteresis
wiring or maintaining
- Confirm that power supply voltage is
compatible with rated control
voltage
Hysteresis
Threshold U<
L1/L2/L3
L1/L2/L3-N
14
11
12
Tr
To
Tr
Tu
Tr
<Tu
Fail to follow these instruction will
result in serious injury or fire disaster
<To
-2-