What is DC Energy Meter?

DC energy meters are increasing to accurately measure DC power, as the application of Charging piles or DC systems. To help you know what is energy meter, this article will introduce its working principles, types, and applications.

Definition

A DC energy meter is a meter that generates an output proportional to the electrical energy being measured by applying DC current (or voltage representing DC current) and DC voltage to solid-state (electronic) components. It is designed to measure the electrical energy consumption of a direct current (DC) electrical system.

working principle of DC energy meter

The working principle of a DC energy meter is based on Ohm’s law, which calculates electrical energy by measuring current and voltage. When current passes through a resistor, a voltage drop occurs across the resistor. A power meter uses this principle to measure the current and voltage passing through it.

A DC-watt-hour meter usually consists of a current measurement part and a voltage measurement part. The current measurement section usually consists of a current transformer and a resistor to measure the current passing through it, while the voltage measurement section consists of a potentiometer and a capacitor to measure the voltage across it. When both current and voltage are measured, the DC energy meter can calculate the energy passing through it. This process is usually done by a microprocessor, which can record and calculate the output of the energy meter.

Types of DC energy meter

According to connection, there are direct connection DC energy meters and indirect connection DC energy meters. As for the direct connection DC energy meter, voltage and current measuring elements are directly connected to the testing DC circuit. However, as for indirect connection DC energy meters, voltage, or current measuring elements need to be connected to the testing DC circuit through DC hall current sensors, shunts, etc.

According to the power supply mode, it can be divided into DC energy meters powered by independent power supply and DC energy meters powered by voltage lines.

According to the installation mode, it can be divided into din rail-type and panel-mounting type.

According to the number of channels, it can be divided into single-channel, dual-channel, and multi-channel.

According to the function, it can be divided into single-function and multi-function.

According to the application, it can be divided into DC metering for EV chargers, DC metering for solar panels, DC metering for telecom, metering for data centers, DC metering for DC screens, DC metering for solar systems, etc.

Regardless of which type of DC energy meter, Blue Jay offers the ideal solution for DC metering. A variety of DC metering options include Panel mounting, din rail mounting, single channel, dual channel, multi-channel, and multifunction. Contact us now for your special DC Metering solution.

Application of DC energy meter

Nowadays, DC metering solutions are widely used in Energy metering, electric vehicle charging, solar photovoltaic, wind turbine power generation, battery energy storage systems (BESS), light rail transportation systems, cellular communication towers, power distribution systems and IT networks, infrastructure data center, DC grid and energy monitoring, energy storage, renewable energy, transportation system, etc.

Which application can use our DC metering solutions?
Our DC energy meter is designed for different applications. For example, DCEM-5MC is for solar systems, communication base stations, and DC circuit monitoring. DCEM-7MS is for solar panels. DCEM-4MS is for EV car charging piles. DCEM-3MS is for DC screens or DC Panels. Want to find your ideal DC energy meter easily? Just Contact us now!

Blue Jay Accessories for DC Energy meter

Our DC energy meters are used with the following accessories:
DC Hall Current Current Sensor: These are crucial components for measuring the DC current in the circuit. Ensure that the CTs are compatible with the specific characteristics of the DC energy meter.

DC Shunt Resistor: It is used to measure the voltage drop across the circuit, enabling accurate calculation of current and power.

Conclusion

DC energy meter is used to measure, collect, and store real-time data of DC power systems, which plays an important role in managing and optimizing DC power systems. By accurately measuring energy consumption, DC metering can help to Improve efficiency, reduce costs, and extend system life.