GENERIC SPECIFICATION FOR

MULTIFUNCTION POWER AND ENERGY METER

EPM 5500P POWER METERING SYSTEM

1.0 General

Electrical power meter shall provide continuous monitoring of a three-phase system as required. Meter shall measure current, voltage, real, reactive and apparent power, power factor, real and reactive energy, real, reactive and apparent power demand, current and voltage unbalance, load current and frequency. The meter shall also measure total harmonic distortion of voltage and current as well as 31st harmonic.

2.0 Manufacturer

General Electric Company products have been used as the basis for design. Other manufactures’ products of equivalent quality and operating features may be acceptable, at the engineer’s discretion, if they comply with all requirements specified or indicated in these contract documents.

3.0 Electronic Power Meter

Standards and Approvals

For CE certification, the meter shall adhere to LVD directive and EMC directive

Meter shall conform to safety standard: IEC 61010-1

Meter should meet the following standards for EMC compliance:

IEC 60255-22-1 High frequency disturbance

IEC 61000-4-2 Electrostatic discharge

IEC 61000-4-3 Radiated, radio- frequency immunity

IEC 61000-4-4 Fast transient disturbance

IEC 61000-4-5 Surge immunity

IEC 61000-4-6 Conducted disturbances immunity

IEC 61000-4-8 Power frequency magnetic field immunity

IEC 61000-4-11 AC supply dips & short interruptions

EN55011/CISPR 11

Meter shall meeting the following standards for atmospheric environment:

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IEC 60068-2/-1,-2 Cold /dry hot

IEC 60068-2-30 Damp heat, cyclic

IEC 60259 IP41 front panel

Meter shall conform to the IEC 60255-21-1 for mechanical

Meter shall conform to the IEC 62053-21 class1 for KWh accuracy.

Meter shall conform to the DIN43700 standards for dimensions

Power meter shall be able to be stored in (-40 to +85) degrees C. Operating temperature shall be (-10 to +70) degrees C

Metering and Monitoring

Meter shall provide a true RMS monitoring of Ia, Ib, Ic, In, Van, Vbn, Vcn, Vab, Vbc, Vca, power factor, frequency, watts, Vars, VA, Wh, Varh and demand readings for W, Vars, and VA.

Meter shall provide metering of voltage/current unbalance, voltage crest factor, THFF, K factor for Power Qualities, Total Harmonic Distortion (THD) as well as individual harmonic to the 31st order.

Graphic LCD display for the DI status and load current indicator.

Following minimum accuracy for the monitored parameters shall be provided:

o Voltage: ±0.2% of full-scale o Current: ±0.2% of full-scale o Neutral current: ±1.0% of full-scaleo Voltage unbalance: ±1% of full-scaleo Current unbalance: ±1% of full-scaleo KW: ±0.5% of full-scale with 0.1% resolutiono KVar: ±0.5% of full-scale with 0.1% resolutiono KVA: ±0.5% of full-scale with 0.1% resolutiono KWh: ±0.5% of full-scale with 0.1 KWh resolution; meet as per

IEC62053-21 class1o KVarh: ±0.5% of full-scale with 0.1 KVarh resolutiono Power factor: ±1% of full-scaleo Frequency: ±0.2% of full scaleo KW demand: ±0.5% of full-scaleo KVar demand:±0.5% of full-scaleo KVA demand: ±0.5% of full-scaleo Current THD: ±2.0% of full-scaleo Voltage THD: ±2.0% of full-scale

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User shall be able to set Alarm conditions for parameters. The limit of maximum 9 parameters selected from 43 parameters can be set alarm conditions. The over limit value of the parameters and the time of the event shall be recorded in the meter.

Input /Output

The meter shall accept a power supply input of a wide range, from 100 to 240V ac or 100 to 300V dc with a power consumption of maximum 3W.

The meter shall take a PT primary input up to a maximum of 500 kV ac and a PT secondary input of 100Vac with a 20% over range factor, or direct voltage input of 230Vac with a 20% over range factor. The voltage input should be capable of taking voltage inputs with a frequency ranging from 45 to 65 Hz. The voltage inputs should be rated to carry twice the nominal voltage continuously. The voltage inputs should be rated to withstand 2500Vac for a 1 second duration. The burden offered shall be less than 0.2VA.

The meter shall take a CT primary input up to a maximum of 9999 amps ac and a CT secondary input of 5 amps with a 20% over range factor. The current inputs should be rated to carry 10 times the nominal current continuously. The current inputs should be rated to withstand 100 amps for a one second duration. The burden offered shall be less than 0.1VA.

The meter must have provision for taking two digital inputs, which should be optically isolated. PL5500 IO could provide four digital inputs.

PL5500 IO could provide two digital outputs and two relay outputs. Two digital outputs could be used to energy pulse outputs or over limit alarming outputs. When used as an over limit alarm output, the upper and lower limit, time interval and output port shall be programmable.

Communication

The meter should support Modbus RTU protocol through a RS485 communication port from the rear of the meter.

Installation

Panel Cut-Out dimension: High and width: no more than 90 x 90mm Depth: no more than 55mm

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