| Customization: | Available |
|---|---|
| Current Type: | DC |
| Phase: | Three Phase |
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WST238-7 VAP type multi-function Protective Device is designed to measure three phase four
wire AC active energy / reactive and used in overvoltage protection, under voltage protection and
over-current protection. In case of over-voltage fault, under-voltage fault or over-current fault in line,
this product can instantly power off the load to prevent electrical equipment from being burnt. The
over-voltage, under-voltage and over-current values of this product can all be set up by yourself
and can be adjusted on the basis of local practical condition .It is a long use-life product with the
advantage of high stability , high over load capability , low power loss and wide working voltage
range.
1.LCD display with backlight , can display total active energy (kWh), total reactive energy (kvarh),
three phase real time current(A), voltage(V), active power (KW),reactive power (kvar) .power
factor ,frequency
2.LCD display kWh (6 digital+2 decimal), Bi-directional total active energy measurement reverse
active energy measure in the total active energy
3.Product self-design has function of lighting protection
4.Overvoltage protection, under voltage protection and over-current protection and lose phase
protection can select auto-Reclosing mode or manual--Reclosing mode
5.In case of over-voltage fault, under-voltage fault or over current fault, lose phase in any phase line,
the product can power off the line and can automatically restore connecting the line over a time
delay after voltage of the lien is recovered to normal condition.
6.In case of transient over voltage in line, the product can protect the equipment from false operation.
7.In case that the line subjects to unstable voltage or sudden power-off and power-on due to
loosened connection and other fault, the product will disconnect the line.
8.When fault voltage of the line reaches the peak, the product itself will not be damaged.
9.Lose neutral line protection
10.Lose phase protection ,and there have phase led indication on meter
11.Unbalance voltage protection , if the voltage unbalance value exceed the setting value between
any 2 phase of three phase .the device will cut off the load
12.Over-current protection mode
13.It can setting delay time for delay switch on / switch off function
14.Interval active energy measure , it can resettable in any time after push button last 5s
15.Last 5 times protection event records
16.Diversified design for the protection , you can closed t any one of overvoltage protection, under
voltage protection and over-current protection in any time
17.35mm din rail installation , bottom type wire connection
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Input working voltage
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160~300V phase-N
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Overvoltage protection value
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85-300V ( default 270V) phase-N
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Under voltage protection value
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85-300V ( default 170V) phase-N
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Over current protection value
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1-80A
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Rated frequency
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50/60Hz
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Delay in switch on after power off
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5-255s ( default 5s) phase-N
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Voltage circuit power consumption
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≤1W each phase
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Current circuit power consumption
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<1VA each phase
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Active energy display range
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0~999999.99kWh
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Voltage/current/active power accurate
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+0.5%
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Active energy accurate
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+1% (IEC62053-21)
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Operating temperature
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-25ºC ~+70ºC
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Storage temperature
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-40ºC ~+80ºC
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Relative humidity
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≤85%
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Altitude
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≤2500m
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Electromagnetic Environment
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E2
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Mechanical life
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≥100000 cycles
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