厂商 :南澳电气(武汉)有限公司
湖北 武汉- 主营产品:
- 局部放电检测仪
- 试验变压器
- 标准电压互感器
NADXC电力谐波测量仪
NADXC power harmonic measuring tester
主要性能及技术指标
电网的电能质量是指供给用户受电端,并供用户使用的电能品质的优劣程度的量度。它涵盖五个方面:供电电压允许偏差、公用电网谐波、三相电压不平衡度、电力系统频率允许偏差、电压允许波动和闪变。
NADXB电力谐波测量报警仪的测试对象为45~65Hz交流工频信号的测量,具体技术参数如下:
1. 测量精度:
表1 仪表主要性能及技术指标
参 数 |
测量范围 |
工 作 误 差 |
分辨力 |
备 注 |
交流电压 |
( 10~500)V |
±(0.4%读数+0.1%量程) |
0.1V |
最大:600V |
交流电流 |
选配电流钳 |
0.001A |
最大:1.1倍 |
|
功 率 |
U*I*PF |
PF=1.0:±(0.4%读数+0.1%量程) PF=0.5:±(0.8%读数+0.2%量程) |
< 200W 0.1W ≥200W 1W |
测试电流 > 0.01*电流量程 |
功率因数 |
0.20~1.00 |
±0.02 |
0.01 |
> 0.5A; |
频 率 |
(45~65)Hz |
±0.01 Hz |
0.01 Hz |
U > 50 V |
电 能 |
9999.9 MWh |
PF=1.0:±(0.4%读数+0.1%量程) PF=0.5:±(0.8%读数+0.2%量程) |
|
|
时 间 |
1m~999h59m |
±0.05 % |
1 秒钟 |
|
谐 波 |
1 ~ 50 次 |
|
|
|
实时时钟 |
|
24 小时格式 |
1 秒钟 |
|
注:电流量程参照仪表选配的电流钳,顾客订货时应该确认适宜的电流钳。
2. 其他参数:
输入方式:电压电流均为浮置输入;
输入阻抗: 电压端子:≥ 600 kΩ;
电流端子:电流钳
测量信号最大峰值:电压电流均为最大量程的1.6倍;
转换速率:约20000次/秒;
显示更新:约2次/秒;
整机功耗:< 5W;
仪表重量:约 4 kg
仪表尺寸: 宽 x 高 x高:(264×117×330)mm
3. 工作环境:
大气压力:(86~106)kPa ;
温度:(0~40)℃ ;
湿度:≤85 %RH
工作电源: 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) |
|
|
Time |
1m~999h59m |
±0.05 % |
1 Second |
|
Harmonics |
1~50 times |
|
|
|
Real time |
|
24 Hour Format |
1 Second |
|
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