Three Phase Multi-function Smart Meter

Author: Ruby

Jul. 08, 2024

Consumer Electronics

Three Phase Multi-function Smart Meter

ME337 panel type three-phase multi-function power meter, external open Rogowski coil or voltage,type CT, realize the test without removing the wire, simplify the test steps, and save construction costs.ME337 supports three-phase four-wire, three-phase three-wire, one-phase three-wire and single-phase,systems; It can measure multiple electrical parameters such as voltage, current, power factor,harmonics, power, and energy of A, B and C phases.ME337 is equipped with RS485 communication interface, through the standard Modbus-RTU,protocol, can be compatible with various configuration systems, the front-end collected electrical,parameters real-time transmission to the system data center.

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Wiring Terminals:

Wiring Diagram:

Meter support wiring type, three-phase four-wire 4CT (3P4W_4CT), three-phase four-wire 3CT(3P4W_3CT), three-phase three-wire 3CT (3P3W_3CT), three-phase three-wire 2CT (3P3W_2CT),one-phase three-wire (1P3W), one-phase two-wire (1P2W)

Three-phase four-wire 3CT

Three-phase three-wire 3CT

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Dimensions:

3 Phase Power Monitoring | PLCS.net - Interactive Q & A



You said "power", many of us gave you current...

Thank goodness at least a few responders got that right...

And by the way that ABB unit is an ENERGY meter, also not the same.

Current = a component of power, along with voltage and power factor
Power = instantaneous reading of all of the above, a component of energy
Energy = power integrated across time

So as others posted, if you want power, you need a power transducer. You can in theory do it with a voltage transducer and a set of current transducers, but getting true power factor involves comparing wave form displacement and is difficult to do accurately in a PLC. Better to just get a power (kW) transducer that does that inside for you and gives you a simple analog output to go to your PLC.

Lol, I even know better, but made a common error...You said "power", many of us gave you current...Thank goodness at least a few responders got that right...And by the way that ABB unit is an ENERGY meter, also not the same.Current = aof power, along with voltage and power factorPower = instantaneous reading of all of the above, aof energyEnergy = power integrated across timeSo as others posted, if you want power, you need a power transducer. You can in theory do it with a voltage transducer and a set of current transducers, but getting true power factor involves comparing wave form displacement and is difficult to do accurately in a PLC. Better to just get a power (kW) transducer that does that inside for you and gives you a simple analog output to go to your PLC.

For more information, please visit 3 phase power monitor.

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