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Inverter efficiency tester – PR value LXPE93

Inverter efficiency tester – PR value LXPE93

The photovoltaic power station system efficiency PR analyzer PE93 is used for inspection, acceptance, and operation of photovoltaic power stations, to monitor the powe...

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詳細(xì)介紹

The photovoltaic power station system efficiency PR analyzer PE93 is used for inspection, acceptance, and operation of photovoltaic power stations, to monitor the power generation situation of the photovoltaic power generation system in real time. It can monitor the DC voltage, DC current, DC power, AC voltage, AC current, and AC power output of the solar photovoltaic array in real time and quickly, as well as real-time detection of parameters such as power, conversion efficiency, and power factor of the photovoltaic power generation system. Suitable for power analysis of 1500V photovoltaic systems.

Main features

1、Wide voltage testing range, maximum DC testing voltage 1500V;

2、Support network communication function, realize remote synchronous testing control through TCP networking;

3、Power analysis function, detecting DC voltage and DC current before inverter, AC voltage and AC current after inverter, apparent power, active power, conversion efficiency, system efficiency, etc;

4、Real time acquisition of environmental parameters function, combined with the designed irradiance meter to obtain real-time solar irradiance and temperature data;

5、Wireless collection function for environmental parameters, irradiance meter provides wireless communication connection up to 100 meters, making environmental data acquisition more convenient and easy;

6、Easy and convenient to use, with a touch screen color LCD display that allows for direct touch interaction;

7、Internally equipped with a high-voltage isolated power supply design, providing users with reliable safety assurance.

8、Can be tested continuously and automatically store test data results;

9、Built in large capacity replaceable lithium-ion battery, providing sufficient power for testing;

10、Provide users with optional irradiance measurement certificates;

11、Measurable parameters: AC voltage, AC current, DC voltage, DC current, DC power, AC power, power factor, system efficiency, AC voltage harmonics, AC current harmonics, solar cell temperature, ambient temperature, irradiance.

 

Power analysis of photovoltaic power generation system

The LXPE93photovoltaic system efficiency analyzer can provide automatic testing functions for parameters such as voltage true effective value, current true effective value, active power, apparent power, conversion efficiency, and power factor of photovoltaic power generation systems. It can also automatically calculate and analyze system efficiency based on synchronously measured irradiance and temperature values. In addition, reference component parameters can be set according to the actual component reference parameters in the photovoltaic power generation system. Supports TCP networking function and enables remote synchronous testing.

Power analysis and testing of solar photovoltaic power generation system

The PV system efficiency analyzer of the photovoltaic power station performs power analysis and testing on the photovoltaic power generation system to analyze its efficiency. The commonly used test wiring diagram is shown in the following figure.
The single-phase power grid connection (this connection method is only open to channel 1) is shown in Figure 1.

Figure 1

The three-phase three wire system (2-meter method) wiring (this wiring method is only open to channel 1 and channel 2) is shown in Figure 2.

Figure 2

The three-phase four wire system (3-meter method) wiring is shown in Figure 3.

Figure 3

There are two inputs on the DC side and a single-phase output on the AC side. The wiring is shown in Figure 4.

 

Figure 4

Two inputs on the DC side and three-phase output on the AC side (using the two meter method).

Host specifications and performance characteristics

PE93 specification
Range and accuracy of DC voltage testing Range from 0V to 1500V; Accuracy ± 0.5% rdg ± 0.2V
Scope and accuracy of AC voltage testing Phase voltage range: 0V to 600V; Accuracy ± 0.5% rdg ± 0.2V
Line voltage range: 0V to 1000V; Accuracy ± 0.5% rdg ± 0.2V
Range and accuracy of direct current measurement Range: 0.5A~150A/0.5A~1500A (measured with current clamp)
Accuracy within the range of 150A/1500A: depending on the accuracy of the current clamp used
Measurement range and accuracy of AC current Range: 0.5A to 1500A;
Accuracy: Based on the accuracy of the current clamp used
Range and accuracy of irradiance testing ± 3.0% (at 1000W/m2 test point, 25 ℃± 2 ℃)
Temperature testing range and accuracy Range: -20 ℃ to 100 ℃; Accuracy ± 1 ℃
Power factor measurement range and accuracy Range 0.2 to 1.0; Accuracy 0.01
Frequency measurement range and accuracy Range 42.5Hz-69Hz; Accuracy ± 0.2% rdg ± 0.1Hz
Volume
Width x Height x Depth 390mm×300mm×200mm
Weight
Net weight Host: Approximately 5.5kg
Note : The accuracy of irradiance testing may vary due to different atmospheric conditions and the influence of the surrounding environment. The ± 3.0% reading accuracy index is measured under the irradiation of an AAA level solar simulator that meets the AM1.5 spectral distribution.

 

Lailx is committed to the research and production of photovoltaic testing equipment, including photovoltaic power plant system efficiency PR analyzer, portable EL detector, string EL detector, solar portable EL tester, IV power testing series, portable IV tester, power quality analyzer, and other related photovoltaic power plant testing equipment and photovoltaic production line laboratory testing equipment.

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