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2009-12-22 2020-03-04 2021-04-27 2019-05-08 2020-09-27 
WT2030數字功率計
產品型號：WT2030 廠商性質：代理商更新時間：2025-02-20訪 問 量：1970
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日本YOKOGAWA WT2030數字功率計特點
| 產品代碼 | 253101 | 253102 | 253103 |
| 單相2線制 | 可用 | 可用 | 可用 |
| 單相3線制 | 1 | 可用 | 可用 |
| 3相3線制 （2電壓,2電流） | 1 | 1 | 可用 |
| 3相3線制 （3電壓,3電流） | 1 | 1 | 可用 |
| 3相4線制 | 1 | 1 | 可用 |
日本YOKOGAWA WT2030數字功率計技術指標
| Input | |||||||
| Item | VoltageV | CurrentA | |||||
| Input circuit type | Floatinginput | ||||||
| Resistive voltage divider | Shuntinput | ||||||
| Rated inputs（range rms） | 10/15/30/60/150/300/600V | Directinput 1/2/5/10/20/30A External shunt input: Approx.100 kΩ | |||||
| Input impedance | Inputresistance Approx. 2 MΩ Input capacitance Approx.15 pF | Directinput: Approx.6 mΩ +approx.0.07 μH External shunt input: Approx:100kΩ | |||||
| Frequency range | DCand 2 Hz to 500 Hz | ||||||
| Instantaneous maximum allowable input for 1s | Thepeak voltage is 2500V, or the RMS value is 3 times the range, whichever is less. | The peak current is 90A,orthe RMS value is 50A,whichever is less. External input:The peak value is 20times the range or less. | |||||
| Continuousmaximum allowable input | The peak voltageis 1400V, or the RMS value is 2.5 times the range, whichever is less. | Thepeak current is 60A,or the RMS value is 35A,whichever is less. External input:Thepeak value is 10 times the range or less. | |||||
| Continuousmaximum common mode voltage | 600 Vrms（whenthe protective cover for the output connector is used）CATII 400 Vrms（whenthe protective cover for the output connector is removed）CATII | ||||||
| Common mode rejection ratio at 600V rms between input terminals and case （50/60 Hz input） | Voltage input terminals shorted,current input terminals opened:Better than -80 dB（±0.01% of rdg or less） | ||||||
| Reference value: 200 KHz max ±（0.18×f）/（Range rating）% of rdg or less（Unit of f:KHz） | Referencevalue: 200 KHz max ±（0.03 ×f）/（Range rating））% of rdg or less（Unit off:KHz） | ||||||
| Input terminals | Bindingposts | Large binding posts External shuntinput:BNC | |||||
| A/D converter | Simultaneousconversion of voltage and current input Resolution:16 bits Maximum:conversion rate:104 KHz | ||||||
| Overloadinput detection
| Alarm lamp lightsat approx.350% of the input range（approx.700% of range when crest factoris 6） | ||||||
| Range switching | Therange can be switched manually,automatically,or by communication control foreach element. | ||||||
| Auto range switching | Range up:When the measuredvalue exceeds 110% of the rated value.or when the peak value exceeds 350%of the peak value. Range down:When the measured value becomes less than30% of the rated value. | ||||||
| Measurement mode Switching | The mode can be setfor each element and also for each voltage and current measurement circuit. | ||||||
| Display Functions | |||||||
| Display: Display contents: | 7-segment LED （light emittingdiode） 4 displays | ||||||
| DISPLAY | Displaycontents | Display resolution | |||||
| A | V,A,W（eachelement） | V,A,W:50000 Wh,Ah:500000 Hz:199999 | |||||
| B | V,A,W（eachelement） | ||||||
| C | V,A,W,VA,var,PF,deg, Vpk（eachelement） | ||||||
| D | V,A,W,Apk,THD,VHz,AHz,Wh ,Ah（eachelement）,η（efficiency） | ||||||
| Unit: Display update rate: Peak hold function: PEAK: ALL: Response time: | m,k,M,V,A,W,VA,var,pk,Hz,h,deg,% Select from 0.25 sec（FAST）,0.5 sec（MID） and 2.0 sec （SLOW）. Selectable tohold item as follows Vpk and Apk can be held at maximum value Measurementvalue of V,A,W,VA,var,Vpk,Apk can be held at maximum value. Maximum of twicethe display update rate（The time taken for the display to fall within is OFF andan abrupt change is made from 0 to 100% of the range, of from 100 to 0% of therange） | ||||||
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