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DIN-DVW3

Voltage Window Comparator – DVW3

$42.77

Three Phase Voltage Window Comparator for monitoring supply voltage between two levels. The unit is for all three phase voltage monitoring applications to protect valuable equipment. With the wide range of delays, the protection is extended to prevent immediate re-starts. Over and under voltage can be set via front panel dials. The latch facility prevents unmonitored fault conditions. Hysteresis is fixed at 5%.

 

Features:

 

  • High resolution analogue microprocessor
  • Front face adjustable over and under voltage levels
  • Monitors own supply
  • Detects phase reversal
  • 4 Front face selectable delays
  • Optional latch facility
  • Modular 35.5mm DIN rail mountable
  • 10A SPDT output relay
  • LED indication for over and under voltage
  • Indication for phase reversal (both under and over LED ON)
  • LED indication for power supply ON
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Description

Mode of Operations:

 

Three Phase + Neutral Voltage Window Comparator for monitoring supply voltage between two levels. The unit is ideal for all three phase voltage monitoring applications to protect valuable equipment. With the wide range of delays, the protection is extended to prevent immediate re-starts. Neutral loss is also detected. Over and under voltage can be set via front panel dials. The latch facility prevents unmonitored fault conditions. Hysteresis is fixed at 5%.

 

Delay Functions:

1) No Delay Measurement
Start immediately and relay responds directly (normal acquisition delay apply).

 

2) 10s Startup Relay
Operates immediately and power LED flashes when power supply is applied. Measurement starts after 10 sec and power LED stops flashing.

 

3) 180s Response Delay
When power is applied relay does not operate and power LED flashes. After 180sec measurement starts and power LED stops flashing. If relay releases, time delay start, power LED flashes and relay will only operate again after 180sec.

 

4) 10s Recovery Delay
Relay operates immediately and power LED flashes when power supply is applied. Measurement starts after 10 sec and power LED stops flashing. If relay releases, it will only operate if conditions have recovered for 10 sec.

Input Specifications

Input Pin 1, 5 & 9 L1, L2 & L3
Measuring Ranges (VAC) Power Supply 400V
Range 340 – 460V
Upper Limit 420 – 460V
Lower Limit 380 – 340V
Scale ±5 – 15%
Voltage Interruption >500ms
Dielectric Voltage None (supply/electronics)
Rated Impulse Withstand 4 kV (50µs line/line)

Output Specifications

Output Specifications SPDT
Rated Isolation Voltage 6000 VAC (contact / electric)
1000 VAC (contact / contact)
Nominal Rate in AC1 (AG-Ni) 2500 VA
Rated Current 10A
Rated Voltage 250V
Mechanical Life 10×106 cycles
Electrical Life 10×103 cycles (at max load)
Operation Frequency ≤ 1800 cycles/h

Supply Specifications

Power Suppy AC Type 110, 230, 400V, 525V ± 10%
(Galvanic) 50 / 60 Hz ± 5Hz
Isolation 4kV
Consumption ± 3VA
±6 VA 525 VA

General Specifications

Power ON Delay ≤ 300 ms
Power OFF Delay ≤ 200 ms
Indication for
Power Supply ON LED green
Over Voltage LED yellow
Under Voltage LED yellow
Environment
Degree Of protection IP 20
Operating Temperature -10 to + 50°C
Storage Temperature -50 to + 85°C
Weight 200g

Additional information

Supply Voltage

525Vac, 400Vac, 230Vac, 110Vac, 48Vac/dc, 24Vac/dc, 12Vac/dc

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