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Phase Failure Relays:
Functions:
These relays sense the negative sequence voltage components of the system supply and these are best suitable for 3 phase loads.
They offer
protection against phase failure, phase unbalance, phase sequence
reversal conditions which are dangerous to the motor winding and cause
motor burnouts.
Available in DIN rail mounting.
Features:
- Relays monitor 3 phase voltage supply
- Models with multi functions like phase loss, dry run, phase loss with UV, UV + OV
- Models with adjustable trip levels
- Powered by external or built-in aux, supply
- Auto reset, Manual/Remote reset
- DIN rail mount enclosures
- In-built SMPS is select models.
Technical Specifications:
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VSP D1
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SPP D1
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VSP D2
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USP D1
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Supply Voltage
System
Auxilary
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240/380/415 V AC +- 20%
110/240/380/415/440 V AC +- 20%
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240/380/415 V AC +- 20%
110/240/380/415/440 V AC +- 20%
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240/380/415 V AC +- 20%
Built in
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240/380/415 V AC +- 20%
110/240/380/415/440 V AC +- 20%
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Output Contact
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1 CO
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2 CO |
2 CO |
1 CO |
Trip Setting (Volts)
Phase Sequence
Phase Unbalance
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Yes
40 V = / -6 V (fixed)
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Yes
40 V = / -6 V (fixed)
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Yes
30 V to 70 V + / -6 V (adjustable)
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Yes
30 V to 70 V + / -6 V (adjustable)
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Trip Time Delay
On Phase Failure/Seq.
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3.5 Sec. +/- 1.5 Sec.
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3.5 Sec. +/- 1.5 Sec.
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3.5 Sec. +/- 1.5 Sec.
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3.5 Sec. +/- 1.5 Sec.
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Resetting Mode
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Auto
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Auto
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Auto/Manual/Remote
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Auto
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Weight
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320 gms.
|
350 gms.
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400 gms.
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320 gms.
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Dimentions
Overall
Mounting
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76x30.5x117.5
68 Centre to centre
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76x30.5x117.5
68 Centre to centre
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76x56.5x117.5
67x46
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76x30.5x117.5 mm
68 Centre to centre
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