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Products - Transducers
Power Factor Transducer

Power Factor Transducer

The STE-A-7T transducer converts the phase angle between current and voltage of a single phase or 3 phase balanced network into an output signal that can serve several receiving instruments such as indicators, recorders, alarm units etc.
Features Characteristics Technical Data Block Diagram

Features
  • Available in accuracy class index - 0.5, & 1.0
  • Withstands wide temperature variations.
  • VA burden on CT/PT very low. - < 0.5 VA
  • Wide range of Input / Output to meet National / International requirements.
  • Comply to revised IEC 60688 1997-10 standards.
  • Flexibility in auxiliary power supply requirements - A.C. / D.C.
  • 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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Characteristics
Measuring Range 60° Lag - 0 - 60° Lead
Rated Input 110/415V AC, 1/5A AC
Input Frequency 50Hz +/- 10%
Internal Consumption < 0.5 VA for each input
< 4VA for ry voltage if Self Powered
Auxiliary Power Supply 110/240 V AC
12/24/48/110/220V DC
Self Powered
Nominal Output
(Unipolar/Bipolar)		 0-2.5-5.0 mA DC
0-5mA DC / 4-20mA
10-0-10 mA DC
Load Range (Ohms)
a) Current Output
b) Voltage Output
Max 15V/Iout
Min 1K Ohms
Residual A.C. Ripple < 1% (P-P)
Overload Capacity
a) Continuous
b) Momentary
1.2 Vn, 2.0 In
2.0 Vn for 1 sec
20 In for 1 sec.
Accuracy Class 0.5 / 1.0
Response Time < 0.5 sec
Input - output Isolation 4 KV
Operating Temperature 0 - 50°C
Impulse Voltage Test Confirms to IEC 251- 5KV having waveform of 1.2/50 microseconds.
HF Interference Confirms to IEC 255-4
Environment Condition User group II as per IEC 688
Configuration 1-Phase,3-Phase/3-wire,3-Phase/4-wire
Number of output 1, 2, 3


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Block Diagram
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