With the development of data center technology and the requirement of reducing operation cost and energy-saving and emission-reduction,HVDC has obvious advantages over traditional UPS in terms of energy saving, investment cost reducing, high reliability and convenient operation and maintenance. Meanwhile, with more and more widely application in large Internet data centers and other fields, HVDC power supply will gradually become the trend of power supply for data center in the future.

In order to keep the safe, stable and reliable operation of HVDC system, the precision DC power distribution unit is adopted to realize high accuracy electric monitoring of each circuit in DC array cabinet so as to achieve fine energy management; the insulation monitoring module is adopted to monitor the ground insulation performance for the whole DC system so as to realize monitoring, judging and prevention of grounding fault. DC precision distribution unit can transmit data to dynamic environment monitoring system through digital communication to provide guarantee for post operation management.

YDB 037-2009 YDB 037-2009 Technical Requirement of 240V DC Power Supply System for Telecommunication

YD/T 939-2005 YD/T 939-2005 Power Distribution Cabinet for Transmission Equipment

YD/T 944-2007 YD/T 944-2007 Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications

A precision array cabinet provides safe and reliable power supply to server appliance of data center energy terminal, and precision power distribution units provide high-precision measurement data for data center energy monitoring system. As a result, power quality data are reflected in real-time through human-computer interface. Moreover, such data are uploaded to background dynamic environment monitoring system through digital communication, realizing real-time monitoring to the whole power distribution system. With the continuous development of IT technology, the reliability and meticulous management requirements of data centers have been gradually improved. Large scale and high-density power consumption has become the trend of data center.

• ■ Modular design, convenient to be expanded for different customer’s requirements;
• ■ Color display interface, flexible customization
• ■ Bus connection between modules, integrated communication and power supply
• ■ Measure all electrical parameters for incoming line and feeder line (including switch status)
• ■ Two RS485 communication ports, one Enternet port optional

• Real-time monitoring switch status

  Conduct real-time monitoring to switch status of each circuit through BCM201-S module, display real-time status of switch such as closed, open, alarm and not enable.

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• Real-time data of incoming line

  Real-time monitoring basic data of incoming circuits including voltage, current, power, power factor, frequency and energy.

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• Real-time data of feeder circuit

  Real-time monitoring basic electrical data of each feeder circuit including voltage, current and power.

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• Real-time alarm display

  Real-time display of alarm information including alarm time and alarm value, quickly guide the operation and maintenance personnel to handle the problems.

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• Operation records query

  Check alarm records for off-limit electrical parameters and display historical alarm information. Record down alarm electrical parameters, alarm types and alarm start time in details. The status of the running line in alarm time can be traced by querying historical events.

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• Real-time monitoring dynamic environment

  Monitor real-time status of energy consumption and alarm for each circuit so as to facilitate user’s operation and analysis. Adopt 7 inch human-machine interface on site for convenient interaction operation. Provide Ethernet port to be connected with upper level monitoring system.

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One BCM201-M1 module is equipped in DC incoming line, and one BCM201-S module is equipped in outgoing circuit to realize monitoring electrical parameters including voltage, current, active power, energy, extreme value and demand for each circuit of incoming and outgoing lines.

One BCM201-M1 module is equipped in DC incoming line, and one BCM201-S module is equipped in outgoing line to realize monitoring of electrical parameters including voltage, current, active power, energy, extreme values and demand for each circuit of incoming and outgoing lines. Meanwhile, BCM201-N module is equipped to realize measurement of voltage between isolation bus and ground as well as insulation resistance.

• Human-machine interface

  BCM101-HMI

  • Feature

    ☑ 7 inch human-machine interface
    ☑ Human-machine interface can execute alarm information and sound alarm
    ☑ Set parameters of modules

  • Function

    ☑ Display data of incoming circuits and feeder circuits, record fault information.
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• Incoming line monitoring module

  BCM201-M

  • Feature

    ☑ Two RS485 communication ports, Ethernet port optional.
    ☑ Four digital inputs, two relay outputs.
    ☑ Two temperature measurements, two bus interface for connecting to outgoing line monitoring module and switch monitoring module.
    ☑ Record tariff energy, store energy data of the past 10 years.
    ☑ Record 1024 pieces of SOE events, 1024 pieces of real-time alarm, 12800 pieces of alarm.

  • Function

    ☑ measure the electrical parameters of two incoming lines, including voltage, current, power, frequency, energy, power quality, extreme value, zero-earth voltage and temperature.
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• Feeder monitoring module

  BCM201-S

  • Feature

    ☑ Equipped with two bus interface which is used to extend this module.。
    ☑3 BCM201-S outgoing line monitoring modules can be connected to a same bus at most to monitor 90 circuits.

  • Function

    ☑Measure electrical parameters of 30 single-phase circuits including voltage, current, power, frequency, energy, demand, extreme value and harmonics.
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• Insulation monitoring module

  BCM201-N

  • Feature

    ☑ Send out alarm when positive or negative bus resistance is lower than alarm threshold value, and start branch inspection function, measure positive and negative ground insulation resistance of branch
    ☑ Multiple fault alarm functions such as ground insulation resistance fault, ground resistance fault of ground
    ☑ Real-time response to communication status of each branch so as to ensure stability and investigation of the whole system

  • Function

    ☑ Measure positive and negative bus ground resistance
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• Switch monitoring module

  BCM101-K

  • Feature

    ☑ 24V active wet contact input
    ☑ 2 bus interfaces for connecting to monitoring modules
    ☑ 2 BCM101-K switch monitoring modules can be connected to a same bus at most

  • Function

    ☑ Monitor the closed and open status of 60 switches at the same time
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