TES Transformer Turns Ratio Meter PROVA-1660

PROVA 1660

Transformer Turns Ratio Meter

Product Features

Transformator/VT/CT Turns Ratio 1 and 3 measurements
CT ratio of 0.82000, VT/PT ratio of 0.810000.
Using a large, back-lit dot matrix LCD, measurements and connections are graphically and literally illustrated. For simple interpretation, display test data with nameplate transformer values.
(50–400Hz) Ten test frequencies.
For simple understanding of transformer quality, display Turns Ratio, Deviation, Secondary Output, Excitation Voltage and Current, Phase Angle, and Nameplate Transformer/VT/CT Values on a single page.
Before each measurement, check for Live Test Points, Short Circuits, Open Circuits, and Reverse Polarity. A warning message is shown to users (But, checking is not performed once measurement starts).
Save 4096 files of measurement data and the transformer nameplate values (VT/PT/CT, 1/3, test frequency, primary and secondary voltages or ratio).
There are 9 different types of 3 Winding Connections pre-installed for user convenience.
Bluetooth wireless communication with a computer.
Choose a filter to eliminate field noise (Slow, Normal, Fast).
Auto-Power-Off with Programmable Time can be enabled or disabled.
Clock with calendar built-in.
Date and time stamped records.
3400mAH powerful lithium battery with integrated charging circuit.
RCF (Reference Correction Factor, 0.99–1.01) is programmable by the user and corrects accuracy to within 1% error.
Friendly File System for Nameplate Values Management and Simple On-Site Data Retrieval.
includes PC application software.

Electrical Specifications:

Reference Conditions：23℃± 5℃ (30 to 50% RH) range.

Add 25ppm/℃ for 0° to 18℃ and 28° to 50℃ to all accuracy specifications.

No external electrical or magnetic fields.

Output current ≦150 mA for VT/PT and ≦50mA for CT. Calibration cycle is 1 year.

Ratio Range (VT/PT)	Autoranging：0.8000 to 10000：1
Accuracy (70Hz)	Ratio Range	Accuracy (% of Reading)
	0.8000 ~ 999.99	± 0.1%
	1000.0 ~ 4999.9	± 0.2%
	5000.0 ~ 10000	± 0.25%
Ratio Range (CT)	Autoranging：0.8000 to 2000.0
Accuracy (70Hz)	Ratio Range	Accuracy (% of Reading)
	0.8000 to 2000.0	± 0.5%
Excitation Signal	VT/PT Mode：34Vrms max CT Mode：Auto Level 0 to1A, 0.1 to 20Vrms
Excitation Current Display	Range：0 to 1000mA Accuracy：±(2% of Reading +2mA)
Excitation Frequency (Hz)	50, 55, 60, 70, 100, 120, 200, 240, 300, 400
Display	5” Large dot matrix LCD display (240*128) with backlight
Power Source	Rechargeable Lithium Battery, 3400mAh
Battery Life	Over 10 hrs of continuous operation. Battery life (%) indication
Battery Charger	Universal input (90 to 264Vrms input)
Charging Time	＜4 hrs
Data Storage	4096 Files Each (VTM, CTM, VTR, CTR, BMP)
Date/ Time	Battery-backed, Real-time Calendar clock
Measurement Method	ANSI / IEEE C57.12.90 and IEC 600076.1
Operation Environment	5°C ~ 50°C, 85% RH
Storage Environment	-20°C ~ 60°C, 75% RH

Accessory: