SPW301-Metal Case

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HC SP系列設計使用堅固的鋼製外殼，具有良好的抗電磁干擾能力及較高的電氣過載能力。是具有穩定可靠的量測單元，適用於現場操作及實驗室。

SPW-WATT利用乘法器進行電壓及電流的轉換進而計算出瓦特數值，設計為精準量測單。

SPW301適用於3相4線三元件系統

0 to 1 mAdc 標準輸出
精確為0.25% 讀值 + 0.02% 範圍值
具有抗高磁場干擾能力
符合IEEE SWC 測試標準

Accuracy : 0.25% RD + 0.02%RO / 23 ± 3 oC
Input ( each element ) :
Range : Effective voltage 85-150V; current 0-6A
Over capability :
Voltage 200V continuous 250V ... 10sec / hour; 500V ... 2sec / hour
Current 15A continuous 50A ... 10sec / hour; 250A...1sec / hour; 400A ... 0.5sec / hour
Burden : Voltage < 0.1VA at 120V input; current < 0.2VA at 5A input
Frequency : Watt 57-63Hz; Var 60Hz only
Protection : Full protection for SURGE, EMI & RFI
Output ( isolated with input ) :
Range :
DC 0 to ± 1mA
DC 0 to ± 1mA calibration vs 0 to ± 500W / ± 500Var ...1ø2W / 1element
0 to ± 1000W / ± 1000Var...3ø3W / 2elements
0 to ±1 500W / ± 1500Var...3ø4W / 3elements
Output load : Maximum 10Kohm for 0 to +1 mA output
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 55oC
Adjustment : Span +5% / 10%; zero +2.5% / 5% on request
Protection : No damage ... open or short; full protection for SURGE, EMI, & RFI
Magnetic effect < 0.04% at center 400 A-T / M
Power Supply : AC 115 + 20%, 50-70Hz, < 3VA
Operation Condition :
Temperature Environment: -5 ~ 60 oC
Humidity : 20~99% RH non condensed
Elevation : Under 3000 meters
Magnetic Field : 500 A-T / M
Waveform :
Watt - Fundamental with 20% 3rd harmonics
Var - Sinusoidal
Power Factor : Any
Dielectric strength : 4KV AC rms 1 minute between input / output / power / case;
fulfills IEC688 standards
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)