Hsiang Cheng Model LPA/LPAR/LPAX

AC Current Transducer Series

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Hsiang Cheng FPW and FPK Watt transducers

Product Parameters:
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Input Option Option Option Output
Voltage 75 – 150 V 150 – 300 V 300 – 600 V 0-1 mA 0-20 mA 4-20 mA
Current 0 – 1.5 A 0 – 7.5 A 0-15A 0-1 V 0-5 V 0-10 V
Aux. Pwr. 120 ± 15% 240 ± 15% Internal Power 2-10 V Specified
•Specified Auxillary Power (DC24 / 48 / 125 V ± 20%)
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Model Type Description
LPA Current 1 unit of avg. to rms conversion
LPAX Current 3 unit of avg. to rms conversion
LPAR Current True rms conversion
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Specifications :
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General Specifications
Accuracy ( 23±3°C ) 0.1% RO ………. LPA, LPAX0.2% RO ………. LPAR
Maximum output load DC current mode : maximum 10V dropDC voltage mode : maximum 5mA drive
Dielectric strength AC 2KV 1 minute between terminals; AC 2.6KV 1 minute / terminals to case
Surge and impulse test ANSI C37.90 / 1989, IEEE-587, 1983
Maximum input over:
Current related input Voltage related input
1A / 5A4 x rated / continuous 10 x rated / 10 seconds 50 x rated / 1 second 80 x rated / 0.5 second 10A2 x rated / continuous 25 x rated / 1 second 50 x rated / 0.5 second 1.5 x rated / continuous2 x rated / 10 seconds
Input burden Current less 0.2 VA; voltage less 0.1 VA
Response time & ripple ≤400 ms for step change 0-99% ripple less 0.5% ro peak to peak
Frequency 45 ~ 400 Hz
Stability
Temperature range ( 20 to 26°C ) long term stability / year
Maximum 60 ppm / °C less 0.2% draft / year typically
Storage condition Temperature range -25 to 70°C, RH 20 to 95% non condensed
Operating condition Temperature range -20 to 65°C, RH 0 to 99% non condensed
Magnetic field effect < 0.01% under 100 ampere turns at 1M center
Power dissipation Maximum 3.5 VA for LPA / LPAR ; 8 VA for LPAX
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pdf_pic Downloads: General Specifications
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