DC240V HV branch circuit power monitoring for IDC industry by Elecnova BCM201 multi-circuit power monitoring system


With the acceleration of 5G large-scale commercial and fixed network users, the corresponding implementation of various 5G application scenarios will increase the type and quantity of data exponentially, and the demand of data center will reach an unprecedented level. The power supply construction of IDC (Internet Data Center) computer room plays a key role in the development of data center. 

At present, uninterruptible AC power supply system (UPS) is widely used in IDC room, but at the same time, more and more projects use the 240 V high-voltage DC power supply scheme. The 240V high-voltage DC power supply system is mainly composed of rectifier cabinet, DC cabinet, storage battery, DC distribution cabinet and column head cabinet. Compared with UPS power supply system, the HVDC power supply system has the advantages of less conversion links, high efficiency, high reliability, convenient maintenance and long service life.


Sfere BCM201 high-voltage DC precision power distribution monitoring unit can achieve high-precision power monitoring for each circuit in the DC column head cabinet, and realize refined energy consumption management. At the same time, the insulation monitoring module can monitor the ground insulation performance of the entire DC system. The DC precision power distribution unit data can be uploaded to the dynamic environment monitoring system through digital communication to provide reliable guarantee for operation management.

Sfere BCM201 precision power distribution monitoring unit



Functional features


  • Modular design, easy to expand

  • Color screen local display, flexible interface customization

  • Bus connection between modules, integrated communication and power supply

  • Total electric quantity measurement of incoming line and feeder circuit (including switching value)

  • Two RS485 communication interfaces and one Ethernet interface


Monitoring function

Real-time display of incoming circuit power data

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


Real-time display of power data of each circuit of the outgoing line

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


Real-time monitoring of the switch status of each circuit

BCM201-S monitors the switch status of each circuit in real time, and can display closing, opening, alarm and not enabled in real time.


Real-time alarm display

Display alarm information in real time, including alarm time, alarm value and other information, and quickly guide the operation and maintenance personnel to deal with faults timely.


Operation record query

Query the alarm record of electric quantity exceeding the limit and display the historical alarm information; Record the alarm power, alarm type and alarm start time in detail; The status of the running line during alarm can be traced by querying historical events.


Real-time monitoring of dynamic environment monitoring system

Real-time monitoring of energy consumption and alarm status of each circuit to facilitate customer operation and analysis. 7-inch or 10-inch human machine interface is used locally, which is convenient for interactive operation, and provides Ethernet interface to connect with the upper-level monitoring system


Component parameter






Functional features

Display incoming circuit, feeder circuit data and record fault information

Adopt 7-inch human-machine interface.

The human-machine interface has alarm information prompt and sound alarm.

Parameters between modules can be set.



Incoming line monitoring module





Functional features

Measure the power grid parameters of two DC incoming circuits, including voltage, current, power, electric energy, demand, extreme value, temperature and other parameters.

It has 2-way RS485 communication interface and optional Ethernet communication interface.

8-way digital input and 2-way relay output.

It has a multi tariff electric energy record to store the electric energy of the last 10 years.

It has 1024 SOE event records, 1024 real-time alarm records and 12800 alarm records.



Feeder monitoring module




Functional features

Measure the power grid parameters of 30 DC circuits, including voltage, current, power, electric energy, demand, extreme value and other parameters.

30-way digital input, and judge the opening and closing of the circuit breaker through the voltage value.

It has 2 bus interfaces, and the monitoring module can be expanded through the bus interface.

One bus can be connected to up to 3 BCM201-S feeder monitoring modules to monitor 90 circuits.



Insulation monitoring module




Functional features                 

Measure the resistance values of the two positive and negative busbars to ground.

When the insulation resistance of the positive and negative busbars is lower than the alarm threshold, an alarm message can be sent, and the branch circuit inspection function is activated to measure the positive and negative insulation resistance values of the branch circuit to ground.

Various fault alarm functions: insulation resistance to ground, branch insulation resistance to ground fault, etc.

It can reflect the communication status of each branch in real time to ensure the stability and troubleshooting of the whole system.



Feeder switching value monitoring module





Functional features

It can monitor the opening and closing status of 60 switches at the same time.

24V active wet contact access.

It has two bus interfaces, the monitoring module can be expanded.

One bus can connect up to two BCM201-K switching value monitoring modules.


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