Three phase four wire rail prepaid electricity meter

、 overview

Three phase rail type electric meter brandOur company uses microelectronics technology to measure electrical energy,Using imported integrated circuits and applying digital sampling processing technologySMTElectronic energy meters developed using advanced technologies such as manufacturing processes.Can directly measure positive active energy in electrical energy measurement,7positionLCDThe monitor displays functional power, with good reliability, small size, light weight, beautiful appearance, advanced technology35mmDINStandard rail installation and other features: good resistance to electromagnetic interference, low self consumption and energy saving, high precision, high overload, high stability, anti electricity theft, long service life.

This meter is suitable for measuring rated frequencies of50Hzperhaps60HzThree phase AC active electrical energy. For fixed installation indoors, suitable for ambient temperatures not exceeding-25~+55℃, relative humidity not exceeding95%And the air does not contain corrosive gases and should avoid the influence of dust, mold, salt spray, condensation, insects, etc.

2、Three phase rail type electric meter brandMain specification and technical parameter

2.1 Specification of electric energy meter:

name		accuracy	rated voltageUb	Rated current（A）
Three-phase four-wire Electric energy meter		1.0	220/380V 57.5/100V	1.5(6)、5（20）、10（40）A 15（60）A、20（80）A、 30（100）

Note: In the rated current column, the values before parentheses are the calibrated current valuesIbThe value in parentheses is the rated maximum current valueImax.

2.2 Technical Parameter

2.2.1 Error limit:

Basic error limit of electric energy meter with balanced load

current		Power factor（COSΦ）	Percentage error limit（%）
DC connection	Connected through a transformer		1level	2level
0.05Ib	0.02 Ib	1.0	±1.5	±2.5
0.1 Ib	0.05 Ib	0.5L	±1.5	±2.5
		0.8C	±1.5	—
0.1 Ib~1max	0.05 Ib~1max	1.0	±1.0	±2.0
0.2 Ib~1max	0.1 Ib~1max	0.5L	±1.0	±2.0
		0.8C	±1.0	—

current		Power factor（COSΦ）	Percentage error limit（%）
Direct Access	Connected through a transformer		1level	2level
0.1 Ib~1max	0.05 Ib~1max	1.0	±2.0	±3.0
0.2 Ib~1max	0.1 Ib~1max	0.5L	±2.0	±3.0

Basic error limit of electric energy meter with single-phase load

2.2.2start

At rated voltage, rated frequency, andCOSUnder the condition of Φ=1, when the load current of the electric energy meter is the specified value in the table below, the electric energy meter can start and continuously measure the electric energy.

Instrument Type	accuracy1level	accuracy2level
Direct access type	0.004Ib	0.005 Ib
Connected via transformer	0.002 Ib	0.003 Ib

2.2.3 shunt running

When there is no current in the current circuit of the energy meter and the voltage applied to the voltage circuit is at the rated value115%The test output of the electric energy meter should not generate more than one pulse.

2.2.4 Insulation performance

The waveform that all lines of the electric energy meter can withstand between the outer shell is1.2//50μsThe peak value is6KVPulse voltage, continuous tests at different polarities10Secondly, there is no occurrence of arc discharge or breakdown. The frequency that all circuits of the electric energy meter can withstand between the case or the metal parts that can be touched outside the case is50HzThe actual sine waveform AC voltage2KVThe test lasted for one minute without breakdown.

2.2.5 Working voltage limit:70~115%Ub

2.2.6 Power consumption: ≤2Wand10VA

2.2.7 display

LCD

display 2.2.8

Data storage

Can be saved for 12 months, and after power failure, the data can be saved for at least 10 years.3Three phase rail type electric meter brand

3.1 Installment and use

Installation precautions and methods 3.1.1

The electric energy meter can be installed and used after passing the inspection and being sealed with a lead seal before leaving the factory. Electric energy meters without lead seals or stored for too long should be re inspected by relevant departments before installation and use. 3.1.2

When taking out the electric energy meter from the original packaging box, if damage is found to the inner packaging or outer shell, do not install or power on the meter. Please contact our technical service department 3.1.3

Experienced electricians or professionals are required to install an energy meter and ensure that they have read this manual thoroughly. 3.1.4The electric energy meter should be installed in a ventilated and dry indoor area, using35mmDIN

Standard rail installation, the base plate for installing the electric energy meter should be fixed on a sturdy, fire-resistant, and vibration resistant wall. 3.1.5

In places with pollution and potential damage to the structure, the energy meter should be installed in a protective cabinet. 3.1.6

3.2 When installing wiring, follow the wiring diagram on the terminal cover of the electric energy meter or the corresponding wiring diagram in this manual. It is best to adapt to the introduction of multiple copper wires to avoid abnormal operation or burning of the electric energy meter due to poor contact.

instructions 3.2.1

When using an electric energy meter in areas with frequent lightning strikes, lightning protection measures should be taken to avoid damaging the meter due to lightning strikes. 3.2.2The load capacity of an electric energy meter iszero point zero fiveIb~1max(Direct access type) or

zero point zero two Ib~1max

Exceeding this load capacity between (connected through transformers) will result in inaccurate measurement of the energy meter or burning of the current coil due to heating. 3.2.37When an electric energy meter is used with a transformer, that is, an electric energy meter connected through a current transformer must multiply the reading of its electric energy by the transformer multiplier to obtain the actual electricity consumption.3.2.4Data display: Adopting

position LCDDisplay or measure device.3.2.5Power indicator:L1,L2,L3

three LEDWhen the indicator light is on, it indicates that the three-phase power supply is normal; When a certain phase voltage is missing, the corresponding voltage loss indicator light will turn off.3.2.6Pulse indication:PULSE

When the indicator light is on, it indicates that a power pulse has been detected (when there is a sampling signal, the pulse indicator light will light up approximately)80ms）

3.2.9LCDDisplay type, as follows:Total energy consumptionNNNNN.NN1（5+2

45748.91Format, such as the image

What is the total energy consumption value1

45748.91KWh KWh

picture

3.2.12

be careful:

Please check if all programming is correct before using the electricity meterCorrectly functional wiring1 2 3 4 5 6pulse+ pulse -

5normally open

normally closedCommon terminalMeasurement method8The electric energy meter is equipped with a photoelectric coupling type electric energy pulse test output port, located on the terminal box, which connects the testing equipment+5Vdcreceive7On the positive terminal, signal wire

6sreceiveSimply connect it to the negative terminal.

6.1 、Three phase rail type electric energy meterTransportation and storage

6.2 The transportation and unpacking of electric energy meters should not be subjected to severe impacts, and should be carried out according toZBY002-81According to the Basic Environmental Conditions and Test Methods for Transportation and Storage of Instruments and Meters, transportation and storage are regulated.The electric energy meter should be stored in its original packaging box at an ambient temperature of-30~+65

6.3 ℃, relative humidity not exceeding

795%And there should be no gas in the air that can cause corrosion, and the ambient temperature should not change dramatically.The electric energy meter should be placed on the rack in its original packaging condition, with a stacking height of no more than five boxes. After unpacking, the stacking height of a single packaged electric energy meter should not exceed five. The electric energy meter after unpacking the inner packaging (plastic bag) should not be stored.

、12Three phase rail type electric energy meter