Megger MVCT VT & CT Analyser - Completely Configurable

Description

A lightweight, robust, portable unit, the Megger MVCT VT & CT Analyser can be used to test current and voltage transformers as well as metering and protection class voltage/potential transformers. To this end, it delivers a microprocessor-controlled variable voltage and current output, and provides precision instrumentation to facilitate automatic testing of single and multi-ratio current transformers (CTs) and voltage transformers (VTs). CTs and VTs may be tested within their equipment configurations, for example, mounted in transformers, oil circuit breakers, or switchgear. However, the equipment must be isolated from the electrical system.

Automatic tests may be activated at the push of a button. These tests are performed according to ANSI C57.13; IEC 60044-1; IEC 60044-6; or IEC 61869-2 regulations on relaying /protection class CTs, and IEC 61869-3 on inductive voltage transformers. Alternatively, personalised test plans can be easily created.

The Megger MVCT VT & CT Analyser also offers customisable test reports. It stores complete test files in an easy-to-use, versatile format that facilitates uploading to Megger’s PowerDB Lite Software and enables printing. The Megger MVCT VT & CT Analyser can store over 1000 test results and saturation curves.

Multiple Model Options

The Megger MVCT VT & CT Analyser is completely configurable allowing you to tailor the model to your requirements.

As illustrated in the ordering information above, the Megger MVCT VT & CT Analyser can be configured to include a display. Megger MVCT VT & CT Analysers with a large, full-colour, high-resolution TFT LCD touchscreen display will show relevant data throughout testing and offer the option to view all readings once the test is complete. Furthermore, the Megger MVCT VT & CT Analyser can be operated via the display, which provides easy access to manual tests and pre-configured/automatic test routines.

Models without a display are controlled via a laptop with Megger’s PowerDB Software or Smart Touch View Interface installed. This enables remote operation.

CT Testing

The Megger MVCT VT & CT Analyser directly connects to multi-ratio CTs. It performs all tests at the push of a button and lead changes, greatly reducing testing time. The Megger MVCT VT & CT Analyser can perform the following tests on CTs:

Saturation (CT kneepoints up to 30kV and concurrent measurement)
Ratio, polarity, and burden
Winding resistance (500/1000V test current)
Demagnetisation: the Megger MVCT VT & CT Analyser automatically demagnetises CTs after testing and offers a decoupled demagnetisation routine that can be performed as required
CT burden
CT grouped testing: demagnetisation, knee points, ratios, saturation curves, winding resistances, polarities, and phase deviation (on all taps of multi-ratio CTs)

VT Testing

In addition to the above, the Megger MVCT VT & CT Analyser can perform the following tests on VTs:

Ratio, polarity, and ratio with burden
Winding resistance (500/1000V test current)
Excitation characteristics and short circuit impedance

The Megger MVCT VT & CT Analyser is a versatile, simple-to-use, portable current and voltage transformer analyser.

Megger MVCT VT & CT Analyser Key Features

A lightweight, robust, portable current and voltage transformer analyser
Microprocessor-controlled variable voltage and current transformer analyser
Precision instrumentation
Automatic testing of single and multi-ratio CTs and VTs
CTs and VTs can be tested within their equipment configurations
Automatic tests are activated at the push of a button
Tests on relaying/protection class CTs are performed according to ANSI C57.13; IEC 60044-6; or IEC 61869-2
Tests on inductive VTs are performed according to IEC 61869-3
Easily create test plans
Customisable test reports
Upload test files to Megger’s PowerDB Lite Software
Print test results (optional printer required)
Stores over 1000 test results and saturation curves
Completely configurable unit
Available with a display and without a display
Directly connects to multi-ratio CTs
Tests can be performed on CTs without having to change leads
CT tests: saturation; ratio, polarity, and burden; winding resistance; demagnetisation; CT burden
CT grouped testing: demagnetisation, knee points, ratios, saturation curves, winding resistances, polarities, and phase deviation (on all taps of multi-ratio CTs)
CT kneepoints up to 30kV
VT tests: ratio, polarity, and ratio with burden; winding resistance; excitation characteristics and circuit impedance
Versatile, simple-to-use, portable current and voltage transformer analyser

What’s Included?

Your Choice of Megger MVCT VT & CT Analyser
Your Choice of Power Cord
Ethernet Cable
Instruction Manual

Downloads

Datasheets

Megger MVCT VT & CT Analyser - Datasheet Datasheets

Tech Specs

Megger MVCT VT & CT Analyser Technical Specifications

Input	100 to 265 V, 50 or 60 Hz, 10 A max
Outputs	Output Voltage	0 to 300 V AC 0 to 300 V DC
	Output Current	0 to 1 A eff
	Output Power	300 VA
Inputs	Ranges	0 to 2/10/50/300 V
	Resolution	0.0001 V
	Accuracy	±0.02% of reading
		and ± .02% range typical
		±0.05% of reading and
		±0.05% range maximum
	Current Measurement	Range 0 to 1.0 A
		Resolution 0.0001 A
		Accuracy ±0.08% of reading ±.08% range typical ±0.2% of reading ±0.2% range maximum
CT Testing
Ratio
Standard option range	Accuracy
0.8 to 2000	±0.02% typical ±0.05% maximum
2000 to 5000	±0.03% typical ±0.1%maximum
5000 to 20000	±0.05% typical ±0.2%maximum
Phase Angle
3 digits
Range	0 to 360 degrees
Resolution	1 min
Accuracy	± 3 min typical ±6 maximum
Winding Resistance Test
Measuring range	0-30Ω
Accuracy	(at 20° C) 0.5% ±3 mΩ (typical) / 1% ±10 mΩ (guaranteed) (0 – 30 Ω)
Insulation Test
Test voltage	1000 VDC, 500 VDC
Measuring range	20 GΩ
Short circuit current	1.5 mA nominal
Test current on load	1 mA at min. pass values of insulation (as specified in BS7671, HD 384 and IEC 364)
Accuracy	1000 volts ±3% ±2 digits ±0.2% per GΩ
	500 volts ±3% ±2 digits ±0.4% per GΩ
Communication interfaces	Ethernet
	USB
Environment
Operating	-10º C to 50º C
Storage	-30º C to 70º C
Standards	IEC 61010 CSA 22.2 CE conformity
Dimensions	14” H X 7.5” W X 12” D (36 H cm X 19.3 W cm X 30.5 D cm)
Weight	20 lb (9.07 kg)
VT Option Specifications
Inductive VT Testing
Outputs	Output Voltage	0 to 300 V AC
	Output Current	0 to 1 A eff
	Output Power	300 VA
Ratio measurement
Voltage Ratio	Voltage Level	Accuracy
1 to 350	.6 kV to 35 kV	±0.03% typical ±0.2% maximum
350 to 1100	35 kV to 110 kV	±0.05% typical ±0.3% maximum
1100 to 2450	110 kV to 245 kV	±0.05% typical ±0.5% maximum
Phase Angle Measurement
Voltage ratio	Voltage Level	Accuracy
1 to 350	.6 kV to 35 kV	±3 min typical ±6 min maximum,
350 to 1100	35 kV to 110 kV	±3 min typical ±6 min maximum
1100 to 2450	110 kV to 245 kV	±3 min typical ±6 min maximum.
Winding Resistance Measurement
Resolution	1m Ω
Guaranteed accuracy	(at 20° C) ±0.5% + 1 mΩ
Insulation Test
Test voltage	1000 VDC, 500 VDC
Measuring range:	20 GΩ
Short circuit current	1.5 mA nominal
Test current on load	1 mA at min. pass values of insulation (as specified in BS7671, HD 384 and IEC 364)
Accuracy	1000 volts ±3% ±2 digits ±0.2% per GΩ 500 volts ±3% ±2 digits ±0.4% per GΩ
Relay Option Specifications
Outputs	All outputs are independent from sudden changes in line voltage and frequency. This provides stable outputs not affected by sudden changes in the power source. All outputs are regulated so changes in load impedance do not affect the output.
Output current	Output power ratings are specified in AC rms values and peak power ratings. Output Current Power 1 ampere 15 VA 15.0 V rms continuous
Output current power	1 ampere 15 VA 15.0 V rms continuous
Max V / duty cycle	4 amperes 200 VA (282 peak)
	50.0 V rms continuous
	15 amperes 200 VA (282 peak)
	13.4 V rms continuous
	30 amperes 200 VA (282 peak)
	6.67 V rms continuous
	75 amperes 300 VA (424 peak)
	5.00 V rms 90 cycles
	DC 200 Watts
AC voltage output	Outputs are rated with the following ranges	Output volts power max I
		30 volts 150 VA 5 amps
		150 volts 150 VA (see Power V)
		300 volts 150 VA 0.5 amps
		DC 150 watts
		Duty Cycle: Continuous
Metering	Measured output quantities such as AC amperes, AC Volts, DC volts or DC amperes, and time may be simultaneously displayed on the large, color TFT LCD, optional STVI touch screen. The AC and DC outputs display the approximate voltage/current output before initiating the outputs.
AC voltage amplitude	Accuracy	±0.05% reading + 0.02% range typical
		±0.15% reading + 0.05% range maximum
	Resolution	.01
	Measurements	AC RMS
	Ranges	30, 150, 300 V
AC current amplitude	Accuracy	±0.05% reading + 0.02% range typical,
		±0.15% reading + 0.05% range maximum
	Resolution	.001/.01
	Measurements	AC RMS
	Ranges	30, 60 A
DC voltage amplitude	Accuracy	0.1% range typical, 0.25% range maximum
	Resolution	.01
	Measurements	RMS
	Ranges	30, 150, 300 V
DC current amplitude	Accuracy	±0.05 % reading + 0.02 % range typical
		±0.15 % reading + 0.05 % range maximum
	Resolution	.001/.01
	Measurements	RMS
	Ranges	30 A

SKU	MVCT
Manufacturer Part Code	MVCT