产品名称：WT2030数字功率计
产品型号：WT2030
产品报价：
产品特点：日本YOKOGAWA WT2030数字功率计电力测量仪，0.03级，500KHz/600V/30A，RS232接口，直流和四线测量
WT2030 WT2030数字功率计的详细资料：
日本YOKOGAWA WT2030数字功率计特点
- 额定值（范围）
电压：10/15/30/60/100/150/300/600 V
电流
直接输入：1/2/5/10/20/30 A
外附分流器输入：50/100/200 mV - 频率范围：DC，2Hz至500 kHz（但对功率而言,zui高300 kHz）
- 基本精度（45Hz≤频率f≤66Hz）
电压/电流：±（读数的0.03%＋量程的0.03%）
功率：±（读数的0.04%＋量程0.04%）
功率因数效应（在cosφ＝0时）：加量程的±0.1% - 外型尺寸：约426（宽）×132（高）×400（深）mm
- 重量：约13公斤（ 3单元型），约10公斤（1单元型）
- 连接方法和对应型号
| 产品代码 | 253101 | 253102 | 253103 |
| 单相2线制 | 可用 | 可用 | 可用 |
| 单相3线制 | 1 | 可用 | 可用 |
| 3相3线制 （2电压,2电流） | 1 | 1 | 可用 |
| 3相3线制 （3电压,3电流） | 1 | 1 | 可用 |
| 3相4线制 | 1 | 1 | 可用 |
日本YOKOGAWA WT2030数字功率计技术指标
| 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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