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Home / Products / Test & Measuring Instruments / Winding Resistance Meter (Model :TWRM-40AuP)
 
Winding Resistance Meter
Model : TWRM-40AuP

Introduction

Winding Resistance Meter is designed to measure the winding resistance of transformers, Inductors, generators and motor windings, Tap Changers Etc.

It is specially designed for Highly Inductive objects like 400KV/220KV. This is only indigenous TWRM which gives very fast readings The built in open circuit Voltage of DC Supply ensures that core of the transformer is saturated for fast measurements to be taken. Care is taken to absorb the Back emf of such transformers. For user safety, Instrument has built in 40A regulated and highly stable current source with current selection of 40Amp & 10Amp.

Instrument uses ratio-metric circuit where the resistance of specimen is compared with known internal standard and 4 ½ digit LED/LCD display is provided for resistance measurement in milliohms and in micro ohms.

SPECIAL FEATURES

  • Regulated and highly stable 40Amp,10A current source.

  • 4½ digit LED/LCD display

  • Simultaneous measurements of voltage & current.

  • True four terminal measurement.

  • Resolution of 0.01 micro ohm

  • Protection against inductive kickback and discharge.

  • Line voltage interference suppression , making instrument most suitable for field
    applications.

  • Light weight with carrying case & with 10 meter leads.

  • Inbuilt Printer 2.5 inch, RS232 port Data acquisition software Windows Based.

  • Automatic Discharge.

  • Thermally Protected Power Supply.

TECHNICAL SPECIFICATIONS

RANGES 19999 mW ,1999.9 mW & 199.99 mW
TEST CURRENT RANGE 40Amp & 10 Amp Selectable
MEMORY 100 READINGS max
PORTS RS232 Port, Dot Matrix Epson Printer
RESOLUTION
Range Resolution
19999 mW 1 mW
1999.9 mW 0.1 mW
199.99 mW 0.01 mW
ACCURACY 0.5% ± 3 digits
OPERATING POWER 200 TO 240VAC 50/60Hz
DATA ACQUISITION SOFTWARE Windows Based. 98 , 2000, xp.
CONTROLS Power On Switch.
Current Range selection switch.
Matrix Switching for winding selection.
DIMENSIONS L=440x B=350x H= 240mm ± 10mm
WEIGHT Approx. 15Kg
To keep pace with the latest technology Sivananda Electronics reserves the right to update it's system. Hence, information in the brochure is likely to change without notice.

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(PDF format, Size= 74KB)

 

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See Also
Automatic Transformer Ratio- Meter Model :ATRM-1
Automatic Transformer Ratio - Meter Model :ATRM-1uP

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Over 250 Innovative Products Caters priority sectors - Defense, Power, Communication, Railways
Sivananda Electronics
Head Office & Works : Deepak Mahal, Lam Road, Devlali, Nashik, Maharashtra, India - 422 401
Tel.: +91-253-2491816,2491423,2491504 Fax: +91-253-2492291 ,Email: mkb@sivanandaelctronics.com , Web : www.sivanandaelectronics.com

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