PROVA-1660PROVA-1660 Transformer Turns Ratio Meter-泰纳电子科技有限公司

Harmonic Clamp Meter

PROVA-1660

PROVA-1660 Transformer Turns Ratio Meter

Product Features

■ Measurements of 1Φand 3ΦTransformer/VT/CT Turns Ratio.
■ VT/PT ratio 0.8~10000, CT ratio 0.8~2000.
■ Graphical and Literal Illustration of Measurements and Connections with Large Back-lighted Dot Matrix 240 x 128 LCD. Display Test Data with Nameplate Transformer Values for Easy Interpretation.
■ Ten Test Frequencies (50~400Hz).
■ Display Turns Ratio, Deviation, Secondary Output, Excitation Voltage and Current, Phase Angle and Nameplate Transformer/VT/CT Values in one page for easy transformer quality interpretation. ■ Check for Live Test Points, Short Circuit, Open Circuit, and Reverse Polarity before Each Measurement. Message is displayed to Warn Users (But, checking is not performed once measurement starts).
■ Store 4096 Files of Transformer Nameplate Values (VT/PT/CT, 1Φ/3Φ, Test Frequency, Primary and Secondary Voltages or Ratio, RCF) and Measuring Data.
■ 9 types of 3Φ Windings Connections pre-installed for easy user selection.
■ Wireless Blue Tooth Communication with PC.
■ Select Filter to Remove Field Noise (Slow, Normal, Fast).
■ Disable or Enable Auto-Power-Off with Programmable Time.
■ Built-in calendar clock. Records with Date and Time Stamp.
■ Powerful Lithium Battery (3400mAH) with built-in Charging Circuit.
■ User Programmable RCF (Reference Correction Factor, 0.99~1.01) to Correct Accuracy within 1% Error.
■ Friendly File System for Easy On-site Data Retrieval and Nameplate Values Management.
■ PC Application Software included.

PROVA-1660 Transformer Turns Ratio Meter introduction

■ Measurements of 1Φand 3ΦTransformer/VT/CT Turns Ratio.
■ VT/PT ratio 0.8~10000, CT ratio 0.8~2000.
■ Graphical and Literal Illustration of Measurements and Connections with Large Back-lighted Dot Matrix 240 x 128 LCD. Display Test Data with Nameplate Transformer Values for Easy Interpretation.
■ Ten Test Frequencies (50~400Hz).
■ Display Turns Ratio, Deviation, Secondary Output, Excitation Voltage and Current, Phase Angle and Nameplate Transformer/VT/CT Values in one page for easy transformer quality interpretation. ■ Check for Live Test Points, Short Circuit, Open Circuit, and Reverse Polarity before Each Measurement. Message is displayed to Warn Users (But, checking is not performed once measurement starts).
■ Store 4096 Files of Transformer Nameplate Values (VT/PT/CT, 1Φ/3Φ, Test Frequency, Primary and Secondary Voltages or Ratio, RCF) and Measuring Data.
■ 9 types of 3Φ Windings Connections pre-installed for easy user selection.
■ Wireless Blue Tooth Communication with PC.
■ Select Filter to Remove Field Noise (Slow, Normal, Fast).
■ Disable or Enable Auto-Power-Off with Programmable Time.
■ Built-in calendar clock. Records with Date and Time Stamp.
■ Powerful Lithium Battery (3400mAH) with built-in Charging Circuit.
■ User Programmable RCF (Reference Correction Factor, 0.99~1.01) to Correct Accuracy within 1% Error.
■ Friendly File System for Easy On-site Data Retrieval and Nameplate Values Management.
■ PC Application Software included.

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	土 0.1%
	1000.0 〜4999.9	土 0.2%
	5000.0 〜10000	土 0.25%
Ratio Range (CT)	Autoranging ： 0.8000 to 2000.0
Accuracy (70Hz)	Ratio Range	Accuracy (% of Reading)
	0.8000 to 2000.0	土 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℃ 〜50℃, 85% RH
Storage Environment	-20℃〜60℃, 75%RH

Accessory: