NAJBC南澳電氣NAJBC單相繼電保護(hù)測(cè)試儀
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訪問次數(shù):1434更新時(shí)間:2017-04-17 15:19:28
南澳電氣NADXC電力諧波測(cè)量儀NADXC power harmonic measuring tester
南澳電氣NADXC電力諧波測(cè)量儀主要性能及技術(shù)指標(biāo)
電網(wǎng)的電能質(zhì)量是指供給用戶受電端,并供用戶使用的電能品質(zhì)的優(yōu)劣程度的量度。它涵蓋五個(gè)方面:供電電壓允許偏差、公用電網(wǎng)諧波、三相電壓不平衡度、電力系統(tǒng)頻率允許偏差、電壓允許波動(dòng)和閃變。測(cè)試對(duì)象為45~65Hz交流工頻信號(hào)的測(cè)量,具體技術(shù)參數(shù)如下:
- 測(cè)量精度:
表1 南澳電氣NADXC電力諧波測(cè)量儀儀表主要性能及技術(shù)指標(biāo)
參 數(shù) | 測(cè)量范圍 | 工 作 誤 差 | 分辨力 | 備 注 |
交流電壓 | ( 10~500)V | ±(0.4%讀數(shù)+0.1%量程) | 0.1V | zui大:600V |
交流電流 | 選配電流鉗 | 0.001A | zui大:1.1倍 | |
功 率 | U*I*PF | PF=1.0:±(0.4%讀數(shù)+0.1%量程) PF=0.5:±(0.8%讀數(shù)+0.2%量程) | < 200W 0.1W ≥200W 1W | 測(cè)試電流 > 0.01*電流量程 |
功率因數(shù) | 0.20~1.00 | ±0.02 | 0.01 | > 0.5A; |
頻 率 | (45~65)Hz | ±0.01 Hz | 0.01 Hz | U > 50 V |
電 能 | 9999.9 MWh | PF=1.0:±(0.4%讀數(shù)+0.1%量程) PF=0.5:±(0.8%讀數(shù)+0.2%量程) |
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時(shí) 間 | 1m~999h59m | ±0.05 % | 1 秒鐘 |
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諧 波 | 1 ~ 50 次 |
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實(shí)時(shí)時(shí)鐘 |
| 24 小時(shí)格式 | 1 秒鐘 |
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注: 南澳電氣NADXC電力諧波測(cè)量儀電流量程參照儀表選配的電流鉗,顧客訂貨時(shí)應(yīng)該確認(rèn)適宜的電流鉗。
- 南澳電氣NADXC電力諧波測(cè)量儀其他參數(shù):
輸入方式:電壓電流均為浮置輸入;
輸入阻抗: 電壓端子:≥ 600 kΩ;
電流端子:電流鉗
測(cè)量信號(hào)zui大峰值:電壓電流均為zui大量程的1.6倍;
轉(zhuǎn)換速率:約20000次/秒;
顯示更新:約2次/秒;
整機(jī)功耗:< 5W;
儀表重量:約 4 kg
儀表尺寸: 寬 x 高 x高:(264×117×330)mm
- 南澳電氣NADXC電力諧波測(cè)量儀工作環(huán)境:
大氣壓力:(86~106)kPa ;
溫度:(0~40)℃ ;
濕度:≤85 %RH
工作電源: AC 220V±15% 50/60Hz
The main performance and technical indicators
This power quality of the power grid is a measure of the quality of the power supplied to the user at the receiving end and for the user to use. It covers five aspects: supply voltage tolerance, utility harmonic, three-phase voltage unbalance, power system frequency tolerance, voltage fluctuation and flicker.
NADXB power harmonic measurement alarm object for the 45 ~ 65Hz AC frequency measurement of the signal, The specific technical parameters are as follows:
1. Measurement accuracy:
Table 1. main instrument performance and technical indicators
Data | Measuring range | Working error | Resolution | Remarks |
AC Voltage | ( 10~500)V | ±(0.4%Reading + 0.1% of range) | 0.1V | Max:600V |
AC Current | Current clamp can option | 0.001A | Max:1.1 times | |
Power | U*I*PF | PF=1.0:±(0.4%Reading + 0.1% of range) PF=0.5:±(0.8%Reading + 0.2% of range) | < 200W 0.1W ≥200W 1W | Test current > 0.01*Current range |
Power factor | 0.20~1.00 | ±0.02 | 0.01 | > 0.5A; |
Frequency | (45~65)Hz | ±0.01 Hz | 0.01 Hz | U > 50 V |
Electricity | 9999.9 MWh | PF=1.0:±(0.4%Reading + 0.1% of range) PF=0.5:±(0.8Reading + 0.2% of range) |
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Time | 1m~999h59m | ±0.05 % | 1 Second |
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Harmonics | 1~50 times |
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Real time |
| 24 Hour Format | 1 Second |
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Note: The current range of reference meter matching current clamp, customer orders should confirm the appropriate current clamp.
2. Other parameters:
Input mode: voltage and current are floating input;
Input impedance: Voltage terminals: ≥ 600 kΩ;
Current terminal: current clamp
Measurement signal maximum peak: voltage and current are 1.6 times the maximum range;
Conversion rate: about 20,000 times / second;
Display update: about 2 times / sec;
Power consumption: <5W;
Instrument weight: about 4 kg
Meter size: width x height x height: (264 × 117 × 330) mm
3. Working environment:
Atmospheric pressure: (86 ~ 106) kPa;
Temperature: (0 ~ 40) ℃;
Humidity: ≤ 85% RH
Working power: AC 220V ± 15% 50 / 60Hz