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Products - Transducers
Tap Position Transducer

Tap Position Transducer

This transducer is used for measurement of the mechanical position of an external device or equipment. The mechanical position of the external device (Transformer Tap Change Gear) is converted to a resistance value with a potentiometer or a resistor network by a rotary switch arrangement. The output ( which is a load independent current or voltage) is proportional to the ratio of the resistance value at a position (tap) to the maximum resistance value in the network [i.e. resistance value at the maximum position (tap)]. The output can be connected directly to indicating instruments, data transmission system, Computer systems or SCADA systems.

Features Characteristics Technical Data Block Diagram


Features
  • High accuracy
  • Withstands wide temperature variations.
  • Wide range of Input / Output to meet National / International requirements.
  • Complies to revised IEC 60688-(1997-10) standards.
  • Flexibility in auxiliary power supply requirements - A.C. / D.
  • Rugged and vibration resistant.
  • Withstands seismic test as per IEC 344-1974 for Nuclear Power Applications.
  • Available in dust proof sheet plastic enclosures suitable for Back panel / Din rail mounting.
  • Multiple outputs also available - upto 4.

  • High input / output isolations : 4.0 KV.
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Characteristics



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Technical Data

Measuring Range 8, 16, 24 or 32 TAPS
Rated Input Resistance Network with 25 ohm to 1 Kilo ohms per tap (step) upto 32 taps [Field adjustable span and step 1]
Sensing Current 20mA to 0.5mA DC
Auxiliary Power Supply 110/240V AC
24/48/110/220V DC
Self Power
Nominal Output
(Unipolar/Bipolar)
0-5.0mA DC
0-10mA DC/0-20mA DC
4 - 20mA / 0 - 10V DC
Output Load
a) Current Output
b) Voltage Output

Max 15 V/I out
Min 1K Ohms
A.C. Ripple < 0.1% PP
Input Overload
a) Continuous

Short and open
Accuracy Class 0.25%
Response Time < 1 sec.
Input/Output/Auxiliary 2.0KV / 4.0KV
Operating Temperature 0 - 50°C
Interference Confirms to IEC 255-4
Environment Condition User group II as per IEC 60688
Configuration 3 Wire Resistor Network
Number of output 1, 2, 3
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Block Diagram

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