Fri Nov 16 00:21:23 2018
Fri Nov 16 00:21:23 2018
LINETRAXX® VMD423/VMD423H

LINETRAXX® VMD423/VMD423H

符合DIN V VDE V 0126-1-1,从私人发电系统向公共低压电网供电时,可以监视电压和频率; 30 kW (类如,CHPs、风力发电站、水力发电厂和光伏系统)。
VMD423系列三相电压和频率监视仪监视公共电网馈电点的电压和频率。在中压电网馈电点,用电压互感器(100 V)测量输出电压和频率。当打到阀值时,在 <= 80 ms的范围内激活报警继电器 (响应值参照VDEW 方针,中压电网中的专用发电系统"). 过电压(&gt U2),测量平均值超过10分钟的阶段,会导致报警继电器开关。

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  • VMD423 with separate supply voltage
  • VMD423H is supplied by the system being monitored
  • Undervoltage, overvoltage and under­frequency and overfrequency monitoring in 3(N)AC systems
    AC 0…500 V
  • Monitoring of overvoltage by average determination of the latest 10-minute measuring interval
  • Asymmetry, phase failure and phase sequence monitoring
  • Start-up delay, response delay and delay on release
  • Adjustable switching hysteresis
  • r.m.s. value measurement (AC+DC)
  • Digital measured value display via multi-functional LC display
  • LEDs: Power On, Alarm 1, Alarm 2
  • Measured value memory for operating value
  • Continuous self monitoring
  • Internal test/reset button
  • Two separate alarm relays (one changeover contact each)
  • N/C or N/O operation and fault memory behaviour selectable
  • Password protection for device settings
  • Sealable transparent cover
  • Push-wire terminal (two terminals per connection)
  • Two-module enclosure (36 mm)
  • RoHS compliant
  • Monitoring of automatic switching points between private electricity generation power system in parallel operation with the public low voltage grid
  • Applications according to DIN V VDE V 0126-1-1 (VDE V 0126-1-1): 2006-02, C 10/11, EN 50438:2007
  • Universally applicable for photovoltaic systems, CHPs (Combined Heat and Power plants), wind power and hydro power plants

 

可选配件 LINETRAXX® VMD423/VMD423H


TypeArt. No.
Mounting clip for screw fixing (one clip per device)B98060008

版本 LINETRAXX® VMD423/VMD423H


TypeSupply voltage US*Nominal system voltage Un*Response valueArt. No.**
VMD423-D-1DC 9,6…94 V/
AC 16…72 V, 15…460 Hz
3(N)AC 0…500 V,
40…65 Hz
AC 10…500 VB73010020
B93010020
VMD423-D-2DC 70…300 V/
AC 70…300 V, 15…460 Hz
3(N)AC 0…500 V,
40…65 Hz
AC 10…500 VB73010021
B93010021
VMD423H-D-3Un3(N)AC 0…500 V,
40…65 Hz
AC 70…500 VB73010022
B93010022
* Absolute values
**(B7… = push-wire terminal / B9… = screw-type terminal)

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