Hot Product Rogowski Coil Intelligent Three Phase Power Quality and Handheld Energy Analyzer

Product Description

 

Connectivity advantages
Model	ME435
Support Extra sensor	BNC terminal 333mV CT BNC terminal Rogowski coil
Storage	1GB SD card(Max 4GB) (save intervals 1mins default)
Power	4*AA battery(wroking time: approx 7 hours) Or USB Type-C

Feature

Specification
Model	ME435
Product component type	Handheld  poly-phase  power meter
Poles description	3PH4W  3PH3W 1PH2W (L-N); 1PH2W(L-L);1PH3W(L-L-N)
Device application	Power analysis Energy meter
Input type	External Rogowski coil External CT(333mV only)
Display	3.5 inch TFT screen display
Sampling rate	8k samples per second
Harmonic	52th Max
Mechanical characteristics
Weight		350g
Dimension		L*W*D:21.5*10*3.5CM

Power Meter Characteristics
The power meter measures currents and voltages and reports real-time RMS values for all 3-phases and neutral. In addition, the power meter calculates power factor, realpower, reactive power, and more.
The following sections list the metering characteristics of the power meter.
Real-Time Measuring
The following table lists the metering characteristics of the power meter for the real-time
measurement:

Characteristics	Description
Current	Per phase, neutral, and average of 3 phases
Voltage	L-L, L-N, and average of 3 phases
Frequency	45...65 Hz
Active power	Total and per phase (signed)
Reactive power	Total and per phase (signed)
Apparent power	Total and per phase(signed)
Power factor (True)	Total and per phase 0.000 to 1 (signed)
Angle	Voltage angle,Current angle
Current unbalance	Per phase, most unbalanced of 3 phases
Voltage unbalance	most unbalanced of 3 phases

Minimum/Maximum Values
When any one-second real-time reading reaches its highest or lowest value, the power meter saves the minimum and maximum values in its nonvolatile memory.
From the power meter display, you can:
• view all min./max. values since the last reset and the reset date and time.
• reset min./max. values.
All running min./max. values are arithmetic minimum and maximum values. For example, the minimum phase A-N voltage is the lowest value in the range from 0 to 999.9GV that has occurred since last reset of the min./max. values.
The power meter provides time stamping for all minimum/maximum values.
The following table lists the minimum and maximum values stored in the power meter:
 

Characteristics	Description
Current	Per phase and average
Voltage	per phase and average
Active power	Per phase and total
Reactive power	Per phase and total
Apparent power	Per phase and total

Demand Readings
The power meter provides the following demand readings.
 

Characteristics	Description
Current	Per phase and average
Active, reactive, apparent power	Per phase and Total
Peak Demand Values
Current	Per phase and average
Active, reactive, apparent power	Per phase and Total

Demand Calculation Methods
Power demand is the energy accumulated during a specified period divided by the length of the period. Current demand is calculated using arithmetical integration of the current RMS values during a time period, divided by the length of the period. How the power meter performs this calculation depends on the selected method. To be compatible with electric utility billing practices, the power meter provides block interval power/current demand calculations.
For block interval demand calculations, you select a block of time (interval) that the power meter uses for the demand calculation and the mode the meter uses to handle he interval. 2 different modes are possible:
• Fixed block - Select an interval from 1 to 60 minutes (in 1 minute increments). The
 power meter calculates and updates the demand at the end of each interval.
• Sliding block - Select an interval from 1 to 60 minutes (in 1 minute increments). For demand intervals less than 15                 minutes, the value is updated every 15 seconds. For demand intervals of 15 minutes and greater, the demand value is updated every 60 seconds. The power meter displays the demand value for the last completed interval.
                                                                    The following figures illustrate the 2 ways to calculate demand power using the block
method. For illustration purposes, the interval is set to 15 minutes.

Peak Demand
In nonvolatile memory, the power meter maintains a maximum operating demand value called peak demand. The peak is the highest value (absolute value) for each of these readings since the last reset.
You can reset peak demand values from the power meter display. You should reset peak demand after changes to basic power meter setup such as power system configuration.
Energy Readings
The power meter calculates and stores Per phase and total energy values for active,reactive, and apparent energy.
You can view energy values from the display. The resolution of the energy value automatically changes from kWh to MWh to                                                              GWh (kVAh to MVARh to GWh).
The energy values automatically resets to 0 when it reaches the limit of 999.9GWh,999.9GVAh, or 999.9GVARh.
The following table lists the energy readings from the power meter:

Characteristics	Description
Energy values
Active energy	0 to 999.9GWh Auto reset to 0 in case of over limit
Reactive energy	0 to 999.9GVARh Auto reset to 0 in case of over limit
Apparent energy	0 to 999.9GVAh Auto reset to 0 in case of over limit

Power Quality Analysis Values
The power quality analysis values use the following abbreviations:

• Fundamental phase current rms: I1
• Fundamental phase voltage rms: V1
• RMS of up to three harmonics of phase current:
 Ix, Iy, Iz, x, y, z = 2, 3,…, N
• RMS of up to three harmonics of phase voltage:
 Vx, Vy, Vz, x, y, z = 2, 3,…, N
•Total harmonic distortion of the phase current

• Total harmonic distortion of the phase voltage

• Harmonic distortion of up to three harmonics on the phase
current

• Harmonic distortion of up to three harmonics on the phase
voltage:




THD provides a measure of the total distortion present in a waveform. THD is the ratio of harmonic content to the fundamental and provides a general indication of the quality of a waveform. THD is calculated for both voltage and current.
The following table lists the power quality values of the power meter:

Characteristics	Description
THD	X,Y,Z,A,B(5 times each time) Per phase current,total (percent and rms value) X,Y,Z,A,B(5 times each time)Per phase voltage,total (percent and rms value)

Data Record
The power meter records data to SD card, the following table lists data record of the power meter.

Record
Record interval	1s to 9999s(default 1min)
Record format	csv
Record capacity	Micro SD card 1GB(default)
	Store about 1K Bytes data each time
	record 2 years (1min & 1GB)
Record data	Date&time, Voltage(V),UTHD(%),Current(A),ITHD (%), ITHD3(%),ITHD5(%), ITHD7(%), ITHD11(%), ITHD13(%), ITHD3(A), ITHD5(A), ITHD7(A), ITHD11(A), ITHD13(A) Frequency(Hz), PF(power factor), Active Power(W),Reactive Power(Var),Apparent Power(Va), Active Energy(Wh),Reactive Energy(Varh),Apparent Energy(Vah) Current Demand(A),Current Peak Demand(A)&Date Total Active Power Deamnd(W) Total Active Power Peak Deamnd(W)&Date Total Reactive Power Deamnd(W) Total Reactive Power Peak Deamnd(W)&Date Total Apparent Power Deamnd(W) Total Apparent Power Peak Deamnd(W)&Date

Other Characteristics
The following table lists other characteristics of the power meter:

Characteristics	Description
Reset
Minimum and maximum values	-
Peak demand values	-
Current demand calculation method	1 to 60 minutes
Power demand calculation method	1 to 60 minut

Environmental conditions
Operating temperature		-25ºC to +55ºC
Storage temperature		-40ºC to +85ºC
Humidity rating		5 to 95% RH at 50ºC(non-condensing)
Pullution degree		2
Overvoltage category		III,for distribution systems up to 277/480VAC
Dielectric withstand		As per IEC61010-1, Doubled insulated front panel display
Altitude		3000m Max
IP degree of protection	IP20 conforming to IEC 60629
Colour	White
Contractual warranty	12months
EMC
Electrostatic discharge		Level IV(IEC61000-4-2)
Immunity to radiated fields		Level III (IEC61000-4-3)
Immunity to fast transients		Level IV (IEC61000-4-4)
Immunity to surge		Level IV (IEC61000-4-5)
Conducted immunity		Level III (IEC61000-4-6)
Immunity to power frequency magnetic fields		0.5mT (IEC61000-4-8)
Conducted and radiated emissions		Class B (EN55022 )
Standard compliance
EN 62052-11,EN61557-12,EN 62053-21,EN 62053-22,EN 62053-23,EN 50470-1,EN 50470-3, EN 61010-1,EN 61010-2,EN 61010-031

Specification

Measurement accuracy
Rated current (5 level selectable)	100A(0.5% from 10A to 120A)    600A(0.5% from 10A to 720A)   1000A(0.5% from 10A to 1200A)   3000A(0.5% from 30A to 3600A)   6000A(0.5% from 60A to 7200A)
Rogwoski coil connect setting	100A	MRC-16
	600A	MRC-36
	1000A	Y-FCT-200 or Y-FCT-350 or NRC-100
	3000A	NRC-150 or Y-FCT-510
	6000A	NRC-200 or Y-FCT-800
CTs connect setting	Primary setting:	from 1A to 999999A
	Secondary setting:	from 0.001mV to 333mV
Voltage	0.2% from 60V to 500V
Power factor	±0.005
Active/Apparent Power	IEC62053-22 Class 0.5
Reactive power	IEC62053-21 Class 2
Frequency	0.01% from 45 to 65Hz
Active energy	IEC62053-22 Class 0.5s
Reactive energy	IEC62053-21 Class 2
Input-current characteristics
Primary current range	100A       0.5A to 120A 600A       0.5A to 720A 1kA        1A to 1200A 3kA        3A to 3600A  6kA        6A to 7200A
Measurement input range	1/2^25mV-333mV
Permissible overload	600mV for 10s/hours
Power Supply
Power	4*AA battery(working time: approx. 7hours)
	USB Type-C
power consumption
Screen Backlight On	1100mW
Screen Backlight Off	900mW
Wire diameter for terminals
Current input	BNC connector
Voltage input	Banana plug
DC power supply	DC 5.5*2.1 plug

 
Accessories

Accessories
Voltage wires	4pcs voltage clamp wires with banana plug (2 meters,1.5mm²)
Adaptor	85-265 AC to 9V DC adaptor
SD card	1GB
Remark	Rogowski coil and AA battery not included