Three-Phase Energy Meter Field Harmonic Analysis Calibrator

China Three-Phase Energy Meter Field Harmonic Analysis Calibrator, Find details about China pH Meter, Test System from Three-Phase Energy Meter Field Harmonic Analysis Calibrator

Basic Info.

Model NO.

PEH-3C

Resistance-Temperature Detector (RTD)

Pt100(385)

LCD Display

With LCD Display

Customized

Accuracy Classes

0.1

Clamp-on CT

100A

Self Adjust CT

Measurement of Harmonics

2ND to 51st

Measured Results Can Be Stored

1000PC Meter Data

Power Supply

AC 87~265V

Power Consumption

10va

Data Storage

8 Mega Bite

Trademark

JUNKE

Specification

CE ROHS

Origin

Zhejiang Yueqing

HS Code

902890100

Model NO.

PEH-3C

Resistance-Temperature Detector (RTD)

Pt100(385)

LCD Display

With LCD Display

Customized

Accuracy Classes

0.1

Clamp-on CT

100A

Self Adjust CT

Measurement of Harmonics

2ND to 51st

Measured Results Can Be Stored

1000PC Meter Data

Power Supply

AC 87~265V

Power Consumption

10va

Data Storage

8 Mega Bite

Trademark

JUNKE

Specification

CE ROHS

Origin

Zhejiang Yueqing

HS Code

902890100

Product Desciption

Harmonic analysis

Function description

1. Perform the 2nd ~ 51st harmonic analysis on the measured signal, and test the total harmonic

distortion rate, the content of odd and even and each harmonic.

Press "3 harmonic" key, and the interface displays as follows:

Press [←→] key to turn pages. Press [F4] to sort.

Press [F1] key to measure A phase voltage and current harmonics.Three-phase energy meter field calibrator

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Press [F2] key to measure B phase voltage and current harmonics.

Press [F3] key to measure C phase voltage and current harmonics.

Press [F5] to switch to digital mode.

The instrument can measure 2nd ~ 52nd harmonics, show harmonic spectrums and give out

the percentage content of each harmonic.

Explanation to name:

The content of nth harmonic voltage is expressed as HRUn.

Total harmonic distortion of voltage harmonic (THDu) and total harmonic distortion of current

harmonic (THDi) are defined as, respectively

THDu=(UH/U1)×100%

THDi=(In/I1)×100%

Harmonic order - refers to the multiples of fundamental wave frequency, relative to

fundamental wave. If the frequency of mains supply is 50Hz, the 2nd harmonic is 100Hz AC

component, the 3rd harmonic is 150Hz AC component and so on.

Harmonic influence

Harmonic pollution to power grid is becoming more and more serious, so the harm caused by

harmonics can not be ignored, mainly reflected in:

1. Greatly increasing the chance of resonance in power grid, thus causing the risk of accidentsThree-phase energy meter field calibrator

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arisen from very high overcurrent or overvoltage;

2. Increasing additional loss, and reducing the efficiency of power generation, transmission and

power equipment and the equipment utilization;

3. Increasing the losses to electrical equipment (rotary motors, capacitors, transformers, etc.),

accelerating the insulation aging, and thus shortening the service life;

4. Leading to the metering and measuring instruments (such as: energy meter) not to give correct

instructions or measurement;

5. Interfering with the communication system, lowering down the quality of signal transmission,

disturbing the normal transmission signal, and even damaging the communications equipment.

3.7 Time Settings

1. Press [7] to enter into the time settings interface;

2. Input time, and press [Enter] and the settings take effect.

3.8 Data Query

Query means to inquire the calibration records, line inspection results, and fundamentalThree-phase energy meter field calibrator

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frequency error data stored in the instrument.

Operating steps:

1. Press [Query] to enter into the calibration data query interface as shown in the figure below:

Store the data by date, and the meter calibration data within the same date are stored in a

folder named for the date.

2. Press [Enter] key to view the calibration record on the date.

3. Press [Enter] to view the data details.

Note: if the calibration task you want to find can't be found on the current interface,Three-phase energy meter field calibrator

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search by turning pages through [← →] key.

Press [F5] to delete the data of the current date.

3.9 Communication

General
Power supply	AC57~450V, 50~60Hz
Power consumption	About 10VA
Ambient temperature	-20ºC--+40ºC (accuracyassured)
Relative humidity (not condensing)	40%-95%
Dimension(L×W×H, mm)	249×154×58
Weight	1.8Kg
Warm-up time	< 3 minutes
Battery endurance	4 hours
LCD color display	5.7", 320×240 TFT
Communication port	RS 232
Safety
Declaration of conformity	CE conformed
Operation reference
Measuring ranges
Voltage	AC 30~480V
Current:	Direct connection-1A, 5A Via clamp-on CT's: 5A, 20A(±0.2%, self adjusted), 100A, 500A, 1000A(±0.5%)
Frequency	45~65Hz
Phase	-180 º ~+180º
Constant of pulse	5A: FL=3.6×10⁴P/KWh FH=3.6×10⁷P/KWh Others: FL=36000×5/rated current (P/KWh) FH=3.6×10⁷×5/ rated current (P/KWh)
Harmonic measurement	Range: 2^nd ~51^st Accuracy: ±0.01% (compared to 100% fundamental wave)
Transformation ratio deviation	< ±0.5%
Voltage deviation	< ±0.01%
Frequency deviation	< ±0.01%(45-55Hz)
Influence of temperature	< ±5ppm/ ºC(typical)
Variation in 24hrs.	<±0.02% (class 0.1)		<±0.01% (class 0.05)
Intrinsic error
Current input ( via Clamp-on CT's)		5A (self adjusted), 20A: ±0.2% 100A, 500A, 1000A, 1500A: ±0.5%
Direct connection
	Accuracy class: 0.1		Accuracy class: 0.05
Active energy	±0.1%		±0.05%
Reactive energy	±0.1%		±0.1%
Active power	±0.1%		±0.05%
voltage	±0.1%		±0.05%
current	±0.1%		±0.05%
Frequency	±0.05Hz		±0.05Hz
Phase	±0.1º		±0.05º