Power Transducer

SPAX-Metal Case

HC power current transducer is with design of reading base accuracy & non zero adjustment required
very ideally applied for an accurate measurement of AC current input.
Self power mode design is to simplify wire connection without external power particularly useful for user
in field application.
Model are available for three current units with average responding scaled to RMS output.
  • Self - power mode, zero adj. - non required
  • Standard output with 0 to 1 mAdc
  • Accuracy of reading base 0.25% reading + 0.02% ro
  • Rugged steel enclosure of high magnetic immunity
  • Meets IEEE SWC test
  • Accuracy : 0.25% RD + 0.02%RO / 23 ± 3 °C
  • Input ( each element ) :
    • Range : Effective current 0 - 6A; nominal current 5A
    • Over capability : 15A continuous 50A ... 10sec / hour; 250A ... 1sec / hour; 400A ... 0.5sec / hour
    • Burden : < 2VA at 5A input
    • Frequency : 50 - 70Hz
    • Protection : Full protection for SURGE, EMI & RFI
  • Output ( isolated with input ) :
    • Range :
      • Standard DC 0 to + 1mA
      • DC 0 to 1mA calibration vs 0 to 5A
    • Output load : Maximum 10Kohm for 0 to 1 mA ouput
    • Output impedance > 30 Mega ohm
    • Response time < 400 ms from 0 to 99% RO at operating
    • Ripple < 0.5% P-P RO
    • Long term stability < 0.1% RO per year ( typically )
    • Temperature stability < 0.01% per degree C, from 0 to 55°C
    • Adjustment : Span ±5% / 10% ; zero ... non
    • Protection : No damage ... open or short; full protection ... SURGE, EMI, RFI
    • Magnetic effect < 0.04% at center 400 A-T / M
  • Operation Condition :
    • Environment Temperature : -5 ~ 60 °C
    • Humidity : 20~99% RH non condensed
    • Elevation : Under 3000 meters
    • Magnetic Field : 500 A-T / M
    • Waveform : Sinusoidal
    • Dielectric strength : 4KV AC rms 1 minute between input / output / power / case IEC688
    • Impulse Test : ANSI C37.90 / 1989, IEEE 587 / 1983, IEC255-3, 6KV (1.2 * 50 us), 3KA (8 * 20 us) ..... current only
    • Surge Test (ring wave) : IEEE 587 / 1983 (3KV - 0.5 us / 100 KHz), IEC255-3 (2.5KV - 0.25ms / 1MHz
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