WP3000 variable frequency power analyzer is a high precision power analyzer after the YINHE ELECTRIC’s WP4000 variable frequency power analyzer is introduced and a low cost broadband, is suitable for the detection of transformer, rectifier, inverter, inverter and other types of converters and motors, electrical products, energy efficiency evaluation and harmonic test.
The WP3000 frequency conversion power analyzer is composed by a digital output power unit and a digital input host. The attenuation and interference of transmission links in complex electromagnetic environment are avoided.
Currently, the sensor for high voltage and large current power frequency measurement accuracy, especially precision voltage sensor angle accuracy index is far behind the power analyzer, it is an important factor restricting the precision of power analyzer system. WP3000 variable power analyzer has 100 available kinds of power units , different configuration of power unit, DC current signal without external sensor can directly measure 1mV~15kV DC voltage signal and 100uA~7000A, reduce intermediate links, improve measurement accuracy and bandwidth.
WP3000 variable frequency power analyzer in amplitude, frequency and power factor in a wide range, can achieve the nominal accuracy index, its accuracy can achieve the requirement of test transformer, inverter and other various converter and motors, electrical appliances, new energy products. The voltage and current sensor and the range conversion circuit of the power analyzer system are greatly simplified, and the cost of the test system is reduced, and the occupation area is reduced.
Each WP3000 variable frequency power analyzer can be configured 1~4 power unit, a synchronous measurement analyzer can realize inverter DC input power and AC power output; using two watt meter method, can simultaneously measure two independent threephase circuit and related electrical parameters.
Big instrument technology
Direct measurement of 1mV~15000V, 100uA~7000A
The range of conventional high precision power analyzer’s power unit is small, can not measure the test voltage over 1000V, the maximum test current usually below 50A; the power unit of the type of less, and all kinds of variable frequency electric transducer / sensor has no unified product standards exist all kinds of high precision power analyzer, broadband power analyzer and various frequency / power transmitter the sensor range matching problem; conventional high precision power analyzer may have a smaller angle difference, but with the support of the various types of variable frequency electric transducer / sensor is often not the nominal angle difference index system composed of angle difference index is not clear, it isdifficult to guarantee the precision of the power measurement.
WP3000 variable frequency power analyzer using large instrument technology, combine the first sensor and second meter by digital optical fiber transmission perfectly, it can achieve 1mV~15000V voltage, 100uA~7000A current and power and harmonic.
WP3000 frequency conversion power analyzer based on the selected circuit diagram, can be directly displayed on the main interface and the circuit diagram of the corresponding parameters, and each parameter is named after the customary name. The voltage and current parameters according to the needs can choose to display the true effective value RMS, fundamental RMS H01, arithmetic average AVG, average mean power calibration, according to needs can choose to display the total active power of Pavg, the fundamental active power Ph01. By default, the analyzer enables automatic seamless range conversion, and displays the currently used gear on the right side of the measured parameter.
Calculate the frequency stability, amplitude stability, total harmonic distortion THD, total harmonic factor THF, voltage harmonic factor HVF, current harmonic factor HCF and other electrical characteristics. To calculate the positive sequence component and negative sequence component, zero sequence symmetrical component method. According to the national standard, IEEE, NEMA, CIGRE and other standards to calculate the threephase imbalance and other parameters. The utility model can conveniently judge whether the test power supply of the transformer and the inverter and the motor test bench achieve the relevant standard requirements.
WP3000 frequency conversion power analyzer oscilloscope function using the fixed sampling rate of real time sampling technology, avoid the variable sampling rate of oscilloscope with high bandwidth and low frequency PWM waveform due to aliasing distortion caused by the low sampling frequency and equivalent sampling oscilloscope can not accurately measure the non periodic waveform, can view the PWM waveform as low as 0.1Hz. WP3000 frequency conversion power analyzer can be used in motor, transformer, frequency converter and the electric parameter test of all kinds of converters.
WP3000 frequency conversion power analyzer uses high performance dual core embedded CPU module, large memory, fast computing speed, under the 250kHz sampling frequency, the realization of the 0.1Hz fundamental frequency SPWM waveform DFT transform. To ensure the synchronization of sampling frequency and signal frequency, to ensure the correctness and accuracy of the harmonic analysis results. The instrument can directly display the 100 harmonic, and can realize the real time operation of 2000 times (not more than 100kHz) by the extended host computer software. WP3000 frequency conversion power analyzer can replace all kinds of harmonic analyzer, especially suitable for inverter output SPWM waveform harmonic analysis.
WP3000 variable frequency power analyzer is provided with function of collecting screenshots. Screenshot function is equivalent to the camera, each time you press the recording, a screen snapshot. The sampling function records the instantaneous sampling data of all the channels and the steadystate values of the operation. Screenshots and recorded as a file stored in the directory memory provided external connection or system. The storage capacity depends on the connected storage device (analyzer builtin 150GB hard disk), almost unrestricted, completely solved the problem of the conventional paperless recorder storage capacity is small, can not meet the problem of long time recording.
The conventional power analyzer as second meter, and first sensor with analog signal transmission, especially a broadband sensor power analyzer matching usually output signal is small, the operation of the inverter nonlinear devices such as the occasion, inevitably affected by electromagnetic interference effects, resulting in the measurement accuracy is decreased, but also serious damage to power analyzer.
WP3000 variable frequency power analyzer is composed of a host machine and power unit, the power unit uses the frontend digital technology, installed on the measured point, and the measured signal in digital output, the power unit of the digital signal through the optical fiber connected with the host, the host receives the digital signal from the power unit and the operation, processing and display.
The optical fiber transmission can effectively avoid the loss and interference in the transmission process, cut off the important way of the interference propagation of the sensor and the analyzer, and improve the electromagnetic compatibility of the sensor and the analyzer. Fiber transmission eliminates the error caused by load matching and range matching. Because the host is a pure digital operation, without increasing the error, the possibility of being affected by temperature or longterm drift is eliminated.
Effect of WP3000 frequency precision power analyzer only power unit (SP series or DT series inverter power sensor digital transmitter), effectively improve the system accuracy, the nominal accuracy of the power unit can be realized in complex electromagnetic environment.
Broadband high precision power analyzer  the principle of WP3000 frequency conversion power analyzer
Ordinary sensor and power analyzer generally only in a narrow range to ensure the accuracy of measurement, the measured signal has a wide range, usually using multiple sensors with a shift switch shift to expand the measurement range.
WP3000 variable frequency power analyzer is provided with 8 gears in a power unit, each gear in the gear measuring range in the range of 50%~100% signal, to achieve high accuracy measurement in the range of 1%~200% rated current and rated voltage input in 0.75%~150%. Due to the use of seamless range conversion technology, when switch the gear, the data is not lost, can achieve the wide range of dynamic measurement.
Although some high precision power analyzer can be divided into a number of
stalls, you can achieve a wide range of highprecision measurement. However,
when the sensor is connected, the measurement accuracy is still not guaranteed
because of the lack of appropriate range matching. For example, voltage range of
an imported high precision power analyzer is divided into: 15V, 30V, 60V, 150V,
300V, 600V, 1000V, 1/2 in accordance with the general principle, the instrument
can achieve high accuracy in the range of 1000V ~ 7.5V. However, for the
variable frequency power measurement of a variety of Holzer voltage sensor, the
general output voltage is about 7.5V, that means, after connecting the sensor,
in fact, only one effective range.
In the case of motor and transformer, the power factor is very low when the noload, and the input power is often the main loss of equipment. High accuracy measurement under low power factor is an important technical index for evaluating high efficiency products such as motors and transformers.
The reference condition of the power measurement accuracy level of most high precision power analyzer is the power factor equal to 1, and the accuracy of the low power factor is not clear.
Most of the sensors used for variable frequency power measurement are not nominal phase indicators, and the phase error of the system is not clear.
The power unit of the WP3000 frequency conversion power analyzer has a very
small angular difference, which achieve the high accuracy measurement in the
range of 0.05~1 power factor.
Most of the sensors used for variable frequency power measurement and broadband power analyzer, often with the measurement accuracy as the nominal accuracy index. The measurement accuracy of non power frequency is low, or is not clear, resulting in a high degree of accuracy of the user procurement of measurement equipment, measurement results are very different from the actual.
The WP3000 frequency conversion power analyzer realizes the high accuracy measurement in the full frequency of the motor, frequency converter, transformer and so on.
Chart 1 and chart 2 show the accuracy of the WP3000 frequency conversion power analyzer and the accuracy of the imported high precision power analyzer with a nominal level of 0.02, which is different from the fundamental frequency in the wide frequency range, sine wave and PWM wave.
1、Comparison of sine wave measurement accuracy between WP3000 frequency conversion power analyzer and imported high precision power analyzer
Serial number  Frequency (Hz)  Imported high precision power analyzer  AnyWay 
1  0.1～30  ≥0.5%rd（0.2%rd+0.3%fs）  A type： ≥0.05%rd（0.02%rd+0.03fs） B type： 0.1%rd C type： 0.2%rd 
2  30～45  ≥0.1%rd（0.05%rd+0.05%fs）  
3  45～66  ≥0.06%rd（0.02%rd+0.04%fs）  
4  66～400  ≥0.1%rd（0.05%rd+0.05%fs） 
2、Comparison of PWM base wave measurement accuracy between WP3000 frequency conversion power analyzer and imported high precision power analyzer
Serial number  Frequency (Hz)  Imported high precision power analyzer  AnyWay 
1  4～30  0.9%rd（0.5%rd+0.4%fs） Sampling frequency is greater than 10kHz; 5.5kHz filter active 
Atype： 0.05%rd（0.02%rd+0.03fs） B type： 0.1%rd C type： 0.2%rd 
2  30～66  0.55%rd（0.45%rd+0.1%fs） Sampling frequency is greater than 10kHz; 5.5kHz filter active 

3  66～400  1.3%rd（1.2%rd+0.1%fs） Sampling frequency is greater than 10kHz; 5.5kHz filter active 
The Hunan YINHE Electric Co. Ltd. is a national power frequency measuring instrument measuring station founder, is the establishment of national measurement standards of variable frequency power unit is variable frequency electrical measuring instrument (instrument high precision power analyzer, broadband power analyzer, harmonic monitoring instrument and sensor, transmitter) standard drafting unit, the unit is developed specification for variable frequency electrical measuring instrument calibration, the frequency current testing research center has the most perfect means of traceability and verification device the most advanced. WP3000 frequency conversion power analyzer nominal full accuracy indicators can be traced back to the national standard for variable frequency power measurement. Therefore, the WP3000 frequency conversion power analyzer can be used for all kinds of highprecision power analyzer, broadband power analyzer, harmonic detector and related sensors, transmitters verification / calibration.
Hunan YINHE Electric Co., Ltd. has a fully independent intellectual property rights of WP3000 frequency conversion power analyzer, which is superior to all kinds of imported highprecision power analyzer and broadband power analyzer.
Most of the WP3000 frequency conversion power analyzer is made in china.
The length of the Fourier window is changed from 2500000 points of the WP4000 frequency conversion power analyzer to the 62500 point, and the lower limit of the fundamental frequency and harmonic detection is increased to 4Hz.
Cancel the torque, temperature and other extended test interface and software, the abolition of the VGA extended output interface, the abolition of the WIFI expansion interface.
WP4000 frequency conversion power analyzer can be connected up to 6 power units, WP3000 frequency conversion power analyzer can be connected up to 4 power units.
In addition to the above changes, the WP3000 inverter power analyzer retains all of the features of the WP4000, and all performance indicators remain unchanged.
The measured range of voltage and current, power unit using WP3000 inverter power analyzer is different, also known as the power unit of variable frequency power transmitter WP3000 frequency power analyzer, can be configured as SP series inverter power sensor or DT series digital transmitter.
rate voltage  model  rate current  rate voltage  model  rate current 
380V  SP381201X SP381301X SP381401X SP381501X SP381751X SP381102X SP381152X SP381202X SP381252X SP381302X SP381352X 
200A 300A 400A 500A 750A 1000A 1500A 2000A 2500A 3000A 3500A 
690V  SP691201X SP691301X SP691401X SP691501X SP691751X SP691102X SP691152X SP691202X SP691252X SP691302X SP691352X 
200A 300A 400A 500A 750A 1000A 1500A 2000A 2500A 3000A 3500A 
1140V  SP112201X SP112301X SP112401X SP112501X SP112751X SP112102X SP112152X SP112202X SP112252X SP112302X SP112352X 
200A 300A 400A 500A 750A 1000A 1500A 2000A 2500A 3000A 3500A 
3300V  SP332201X SP332301X SP332401X SP332501X SP332751X SP332102X SP332152X SP332202X SP332252X SP332302X SP332352X 
200A 300A 400A 500A 750A 1000A 1500A 2000A 2500A 3000A 3500A 
6600V  SP662201X SP662301X SP662401X SP662501X SP662751X SP662102X SP662152X SP662202X SP662252X SP662302X SP662352X 
200A 300A 400A 500A 750A 1000A 1500A 2000A 2500A 3000A 3500A 
10000V  SP103201X SP103301X SP103401X SP103501X SP103751X SP103102X SP103152X SP103202X SP103252X SP103302X SP103352X 
200A 300A 400A 500A 750A 1000A 1500A 2000A 2500A 3000A 3500A 
model  test range  model  test range 
DT100 A/B  channel1：0.1~1280V channel2：0.1~1280V 
DT211 A/B  channel1：5V~1280V channel2：0.5A~128A 
DT111 A/B  channel1：0.1~1280V channel2：0.1~1280V 
DT212 A/B  channel1：5V~1280V channel2：20mA~6.4A 
DT122 A/B  channel1：0.5~128V channel2：0.5V~128V 
DT233 A/B  channel1：0.1V~25.6V channel2：4mA~1.28A 
DT200 A/B  channel1：0.1~1280V channel2：100uA~6.4A 
DT300 A/B  channel1：100uA~6.4A channel2：100uA~6.4A 
WP3000 variable frequency power analyzer is the core product of AnyWay brand, is widely used in ship electric propulsion, motor, fan, water pump, wind power generation, rail transportation, electric vehicles, inverter, special transformer, fluorescent lamp, LED lighting in areas such as product inspection and testing, energy efficiency evaluation and harmonic detection. Especially suitable for variable frequency motor testbed, efficient motor testbed, traction motor testbed, wind turbine testbed and transformer, inverter, rectifier and other types of inverter test system.
WP3000 frequency conversion power analyzer can be used for various types of high precision power analyzer, broadband power analyzer, harmonic detector and related sensors, transmitters in the frequency range of the calibration of the frequency range.
The products throughout the 32 provinces and regions, hundreds of wellknown enterprises covering three major power group and Chinese Electric Power Research Institute, Shanghai Electrical Science Research Institute, Suzhou Electrical Science Research Institute, XEME, CSR, Goldwind science and technology at home and abroad. As of 2011 low, has nearly ten national third party testing agencies to provide a complete product testing, energy efficiency evaluation and harmonic detection of the overall solution.
Please refer to the product application section
WP3000 frequency conversion power analyzer configuration chart
project  configure  project  configure 
screen size  12.1 inches  resolving power  800*600 color 
installation mode  embedded/desktop  operation  6 shortcut +8 softkeys 
Conventional measurement  √  Realtime waveform  √ 
harmonic analysis  √  Three phase unbalance  √ 
Positive sequence component  √  negative sequence component  √ 
Total harmonic distortionTHD  √  Total harmonic distortionTHF  √ 
Total harmonic distortionHVF  √  Total harmonic distortionHCF  √ 
Torque / speed  ×  temperature measurement  × 
Ethernet interface  √  Extended large screen output (VGA)  × 
Extended interfaceRS485  ×  WIFI  × 
WP3000 frequency conversion power analyzer technical index
project  index  condition 
Realtime sampling frequency  250kHz  
bandwidth  100kHz  
voltage  Atype：0.05%rd Btype：0.1%rd Ctype：0.2rd 
amplitude：0.75% ~150%UN（SP series）；0.5%~100% UN（DT series）。 fundamental frequency：DC，4Hz~400Hz（SP series）； DC，4Hz~1500Hz（DT series）。 
current  Atype：0.05%rd Btype：0.1%rd Ctype：0.2%rd 
amplitude：1%~200% IN。 fundamental frequency：DC，4Hz~400Hz（SP series）； DC，4Hz~1500Hz（DT series）。 
power  Atype：0.05%rd Btype：0.1%rd Ctype：0.2%rd 
power factor=1； rated voltage、 rated current；fundamental frequency：45~66Hz。 
Atype：0.1%rd Btype：0.2%rd Ctype：0.5%rd 
power factor：0.2~1。 fundamental frequency：DC，4Hz~400Hz（SP series）； 4Hz~1500Hz（DT series）。 

Atype：0.2%rd Btype：0.5%rd Ctype：1%rd 
power factor：0.05~0.2。 fundamental frequency：DC，4Hz~400Hz（SP series）； DC，4Hz~1500Hz（DT series）。 

Frequency measurement accuracy  0.02%rd  4Hz~1500Hz 
Voltage overload time  10min  U < 1.5UN(SP series) 
current overload time  3min  I < 2IN 