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WTS238-7 VAP
Winston
Products Description
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.
Functioning
■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
■LCD display kWh (6 digital+2 decimal), Bi-directional total active energy measurement reverse
active energy measure in the total active energy
■Product self-design has function of lighting protection
■Overvoltage protection, under voltage protection and over-current protection and lose phase
protection can select auto-Reclosing mode or manual--Reclosing mode
■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.
■In case of transient over voltage in line, the product can protect the equipment from false operation.
■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.
■When fault voltage of the line reaches the peak, the product itself will not be damaged.
■Lose neutral line protection
■Lose phase protection ,and there have phase led indication on meter
■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
■Over-current protection mode
■It can setting delay time for delay switch on / switch off function
■Interval active energy measure , it can resettable in any time after push button last 5s
■Last 5 times protection event records
■Diversified design for the protection , you can closed t any one of overvoltage protection, under
voltage protection and over-current protection in any time
■35mm din rail installation , bottom type wire connection
Technical Parameters
Input working voltage | 160~300V phase-N |
Overvoltage protection value | 85-300V ( default 270V) phase-N |
Under voltage protection value | 85-300V ( default 170V) phase-N |
Over current protection value | 1-80A |
Rated frequency | 50/60Hz |
Delay in switch on after power off | 5-255s ( default 5s) phase-N |
Voltage circuit power consumption | ≤1W each phase |
Current circuit power consumption | <1VA each phase |
Active energy display range | 0~999999.99kWh |
Voltage/current/active power accurate | +0.5% |
Active energy accurate | +1% (IEC62053-21) |
Operating temperature | -25℃ ~+70℃ |
Storage temperature | -40℃ ~+80℃ |
Relative humidity | ≤85% |
Altitude | ≤2500m |
Electromagnetic Environment | E2 |
Mechanical life | ≥100000 cycles |
Wiring diagram
Dimension
Window sketch
Packaging & Shipping
Products Description
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.
Functioning
■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
■LCD display kWh (6 digital+2 decimal), Bi-directional total active energy measurement reverse
active energy measure in the total active energy
■Product self-design has function of lighting protection
■Overvoltage protection, under voltage protection and over-current protection and lose phase
protection can select auto-Reclosing mode or manual--Reclosing mode
■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.
■In case of transient over voltage in line, the product can protect the equipment from false operation.
■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.
■When fault voltage of the line reaches the peak, the product itself will not be damaged.
■Lose neutral line protection
■Lose phase protection ,and there have phase led indication on meter
■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
■Over-current protection mode
■It can setting delay time for delay switch on / switch off function
■Interval active energy measure , it can resettable in any time after push button last 5s
■Last 5 times protection event records
■Diversified design for the protection , you can closed t any one of overvoltage protection, under
voltage protection and over-current protection in any time
■35mm din rail installation , bottom type wire connection
Technical Parameters
Input working voltage | 160~300V phase-N |
Overvoltage protection value | 85-300V ( default 270V) phase-N |
Under voltage protection value | 85-300V ( default 170V) phase-N |
Over current protection value | 1-80A |
Rated frequency | 50/60Hz |
Delay in switch on after power off | 5-255s ( default 5s) phase-N |
Voltage circuit power consumption | ≤1W each phase |
Current circuit power consumption | <1VA each phase |
Active energy display range | 0~999999.99kWh |
Voltage/current/active power accurate | +0.5% |
Active energy accurate | +1% (IEC62053-21) |
Operating temperature | -25℃ ~+70℃ |
Storage temperature | -40℃ ~+80℃ |
Relative humidity | ≤85% |
Altitude | ≤2500m |
Electromagnetic Environment | E2 |
Mechanical life | ≥100000 cycles |
Wiring diagram
Dimension
Window sketch
Packaging & Shipping