Digital Instrument Transformer Calibrator

Product Description

Digital Instrument Transformer Calibrator

General Information:

The high-voltage electric energy metering devices of power plants and substations, as well as the electric energy metering devices of many users, are related to the interests of power generation, transmission, power supply and users. To ensure the accuracy of the measurement, the inspection must be carried out in accordance with the "Inspection Regulations for Electric Energy Metering Devices" and "Technical Management Regulations for Electric Energy Metering Devices".

EPTR-60 transformer field calibrator is based on high-end testing technology and large-scale electronic circuit design. It solves the problem of large work intensity and cumbersome operation of field verification transformers. At the same time, the product has reliable performance and powerful functions.

1. Conventional Transformer Test Function

Features

√ Digital LCD display.

√ Automatically indicate polar and alarm in case of wrong polarity.

√ Its built-in self-test circuit can monitor the precision of instrument itself.

√ Easy in operation, fast in measurement, compact in design, suitable for field test.

√ It can test for conventional voltage transformers according to IEC 61869-3, IEC 61869-5 standards.

√ It can test for conventional current transformers according to IEC 61869-2 standard.

√ Voltage measurement range: 0 ~ 300 V

√ Current measurement range: 0.05 A ~ 10 A

√ Ratio error of conventional voltage transformer and current transformer: ≤ ± 1.0% reading (display value)

√ Phase angle error of conventional voltage transformer and current transformer: ≤ ± 0.2 min.

2. Electronic Transformer Test Function

Introductions

Electronic transformer calibrator is mainly used to calibrate the electronic transformer that complies with IEC 61850-9-1, IEC 61850-9-2, IEC 61850-9-2LE standards. Calibration includes: ratio error, phase displacement, delay, polarity, etc. Equipped with small-signal input terminal, it can calibrate the small-signal output of the electronic transformer as well as the small-signal input merged unit, etc.

Display: TFT LCD touch screen with resolution 800x600 pixels. 

Main features:

√ It can test for electronic voltage transformers (having an analogue output or a digital output): test according to IEC 61850-9-1, IEC 61850-9-2, IEC 61850-9-2LE standards.

√ It can test for electronic current transformers (having an analogue output or a digital output): test according to IEC 61850-9-1, IEC 61850-9-2, IEC 61850-9-2LE standards.

√ Test items included: ratio difference, phase difference, delay, polarity, etc..

√ Packets full frame resolution protocol of IEC 61850-9-1, IEC 61850-9-2, IEC 61850-9-2LE standards automatic analysis of ASDU (Application Service Data Unit) number and sampling points etc., all channel waveform display without capture can be intuitive to view all the channels of data.

 

Functions:

1. Verification of electronic voltage transformers (with analogue output).

2. Verification of electronic current transformers (with analogue output).

3. Verification of electronic voltage transformers (with digital output).

4. Verification of electronic current transformer (with digital output).

5. Test according to IEC 61850-9-1, IEC 61850-9-2, IEC 61850-9-2LE standards.

Specification

Measure item:	Ratio errors & Phase errors of the CT and PT
Rated current:	5A, 1A
Rated voltage:	100V, 110V, 115V, 120V, 150V, 200V, 220V, 230V
Multiplier:	1/√3, 1/3, 1, 1.5, 2
Accuracy class:	±2%
Operation range:	(1%-200%). In, (20%-200%). Un
Frequency:	50Hz/60Hz
Ratio error range:	±0.0001% ~ ±19.99%(3 ranges: 0.1999%,1.999%, 19.99%).
	Minimum resolution:0.0001%.
Phase error range:	0.1' ~ ±900'(3 ranges: 9.00', 90.0', 900')
	Minimum resolution: 0.01'
Impedance range:	0.001Ω~ 19.99Ω. (2 ranges: 1.999Ω, 19.99Ω).
	Minimum resolution: 0.001Ω.
Admittancerange:	0.001ms ~ 19.99ms. (2 ranges: 1.999ms, 19.99ms).
	Minimum resolution:0.001 ms.
Alarm Function:	Provided thesound& light alarm function when the polarity abnormal or ratio inconsistent.
Input Load:	- On Standard CT secondary side: ≈0.11Ω, COSφ≈1.0 - On Test Object CT secondary side: ≈0.003Ω, COSφ≈1.0 - On Standard PT secondary side: ≈0.05VA (100V)
Communication Interface:	Provided the RS232 serial communication interface
Display model:	LCD
Power supply:	AC 220V±10%, 50Hz
Power consumption:	< 20VA
Overall dimension:	460mm ×360mm ×160mm
Weight:	8KGS

Packing List:

1	Tester	1 Pc
2	Cable of the Power Supply	1 Pc
3	Fuses	2 pcs of 0.1A and 0.5A
4	Communication Cable of RS232	1 Pc
5	User’s Guide	1 Pc
6	Factory Calibration Cert	1 Pc
7	Warranty Cert	1 Pc

Company Profile

Packing & Delivery

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