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Date: 2016/12/08

User Manual

V1.00

Guangzhou ZHIYUAN Electronics Co., Ltd.

PA5000 Series Power Analyzer Start Guide

Figure 5-1: System settings menu

5.3 Zero Calibration

5.3.1

Function Introduction

It is necessary to perform zero calibration for the instrument before use it. The zero level

of the circuit within power analyzer may be slightly modified due to environment and

other change. The zero calibration operation can eliminate the effect of current zero

level and therefore improves the measurement correctness of instrument. The zero

calibration mode contains auto zero calibration and manual zero calibration.

Users may set auto-zeroing in the measurement menu shown in Figure 5-2. If the

auto-zeroing is enabled, the instrument automatically performs zero calibration

operation after the measurement range and input filter are modified; however, if same

measurement range and input filter are used during a long time, the zero level of power

analyzer may be modified due to the change of ambient environment, in this case, a

manual zero calibration should be performed, and the operation is performed once

every time, as shown in Figure 5-2.

Содержание PA5000 Series

Страница 1: ...PA5000 Series Power Analyzer Start Guide Date 2016 12 08 V1 00 Guangzhou ZHIYUAN Electronics Co Ltd www zlg cn User Manual UM01010101 ...

Страница 2: ...18 2 7 1 Waveform display 18 2 7 2 Trend Analysis 19 2 7 3 Harmonic analysis function 20 2 7 4 FFT Function 21 2 7 5 IEC Harmonics Measurement 22 2 7 6 Vector Display 23 2 7 7 Flicker Analysis 24 2 7 8 Cycle by cycle Analysis 25 2 7 9 Normal Analysis Mode 26 2 7 10 Waveform Operation 26 2 7 11 Motor Measurement 27 2 8 Supplemental Information 28 2 8 1 Input Element 28 2 8 2 Wiring Unit 30 Chapter ...

Страница 3: ...0 6 1 Select wiring mode 60 6 2 Set measurement range 60 6 2 1 Set the measurement range for direct input 60 6 2 2 How to set the range when using the external current sensor 63 6 2 3 Ratio Factor 63 6 3 Measurement Interval Setting 65 6 3 1 Set synchronous source 65 6 3 2 Set data update rate 66 6 4 Filter Configuration 67 6 5 Power Measurement Parameter Initialization 69 6 5 1 Set calculation fo...

Страница 4: ...8 2 Monitor 83 8 3 Accuracy 83 8 3 1 Basic Accuracy 83 8 3 2 Input Range 87 8 3 3 Input Display Value 87 8 3 4 Influence of Line Filter 87 8 3 5 Angle Error 88 8 3 6 Temperature Coefficient 88 8 3 7 Accuracy of 12 months 88 8 4 Measurement Modes 88 8 5 Measurement Items 89 8 6 Measurement Functions Measurement Conditions 90 8 7 Motor Function 91 8 7 1 Analog Input Parameters 91 8 7 2 Pulse Frequen...

Страница 5: ...d high current impulse please check all ratings and instructions of the instrument before use the instrument For the detail information about all ratings please refer to the related user manual Use appropriate over voltage protection In order to avoid the electric shock to operators make sure an over voltage such as the voltage caused by thunderstorm will not occur Do not operate the instrument wh...

Страница 6: ...rtation safety To avoid damage to the parts such as keys knobs or interfaces on the panel due to falling of instrument during transportation please note transportation safety Warning signs CAUTION symbol indicates a hazard Improper handling or execution in a specified process operation and so on can lead to loss of important data or damage to the instrument Please completely read and fully underst...

Страница 7: ...utput socket industrial device and other devices of the distribution board circuit breaker and wirings include cables bus bars junction boxes switches and fixed facilities such as those stationary motors permanently attached to fixed facilities Measurement CategoryⅡ It is applicable to measure for circuits directly connected to the low voltage device For example measured for household appliances p...

Страница 8: ...ways hold and pull by the plug If the power cord is damaged check the part number and purchase a replacement from the distributor Keep electrically charged objects away from the instrument Keep electrically charged objects away from the input terminals They may damage the internal circuits Unplug during extended non use If the instrument will not be used in a long time turn off the power to the ci...

Страница 9: ...earth to prevent electric shock before turning on the power The power cord that comes with the instrument is a three pin power cord So the power cord should be connected to a properly grounded three prong outlet Do not impair the protective grounding Never cut off the internal or external protective earth wire or disconnect the wiring of the protective earth terminal otherwise the electric shock m...

Страница 10: ...t terminal do not touch the current sensor input terminal Similarly when the measuring circuit is being applied to the current sensor input terminal do not touch the current direct input terminal Since these terminals are electrically connected inside the instrument the operation is very dangerous Withstand voltage of Potential Transformer and Current Transformer When using the external potential ...

Страница 11: ...d PA5000 Series Power Analyzer Start Guide If a measurement accessory is used in a manner not specified by ZHIYUAN Electronics the protection provided by the accessory will be impaired In order to avoid the injury of operators or damage to the instrument do not use a defective or damaged measurement accessory ...

Страница 12: ...lysis and other functions The appearance of PA5000 power analyzer is shown in Figure 1 1 Figure 1 1 The appearance of PA5000 power analyzer 1 2 Features The features of PA5000 power analyzer are described as follows Phase synchronous acquisition and accurate measurement of AD DC voltage current and power parameters Support for up to seven phase power input All input elements with up to 5kV electri...

Страница 13: ...sure the motor torque speed and mechanical power which is suitable for the motor and drive applications Equipped with standard USB Ethernet GPIB and RS 232 interfaces Users can control the power analyzer remotely through these interfaces In addition it supports audio input and output interfaces Supports rich measurement and analysis functions as well as waveforms trend graphs bar graphs FFT vector...

Страница 14: ...onics Date 2016 12 08 User Manual V1 00 C Guangzhou ZHIYUAN Electronics Co Ltd PA5000 Series Power Analyzer Start Guide 1 3 Application System Figure 1 2 shows the application system of the power analyzer Figure 1 2 Application system ...

Страница 15: ... as sampled value 2 2 Measurement Functions Table 2 1 lists the measurement functions of the power analyzer Table 2 1 Measurement functions Measurement Functions of input elements 6 Voltage Voltage RMS Urms 1 Voltage mean Rectified mean voltage calibrated to the RMS value Umn 2 Linear average voltage Udc 3 Rectified mean voltage Urmn 4 Voltage RMS removed DC component Uac Voltage maximum minimum U...

Страница 16: ...ning the average value of a DC input signal or the value of a DC signal that is superimposed on an AC signal 4 Urmn Irmn is the rectified mean voltage current One period of the voltage or current is rectified and the resulting average is obtained 5 Crest factor is defined as the ratio of the waveform peak value to the rms value 6 Waveform factor is defined as the ratio of the waveform rms value to...

Страница 17: ...he calculation mode of the sampling data Some measurement functions of the power analyzer are related to the selection of the voltage current mode The voltage current mode includes five values as follows RMS True RMS MEAN Rectified mean value calibrated to RMS DC Linear average voltage AC Effective value of AC component RMEAN Rectified mean value 2 5 Communication Interface The power analyzer come...

Страница 18: ...display For numeric data display users can select the number of displayed items The number of items can be selected from 6 12 24 and All Display all In addition each display item can be set separately It is convenient for users to quickly check each parameter to improve the measurement efficiency as shown in Table 2 2 Table 2 2 Measurement functions Display format Picture Description 6 items Each ...

Страница 19: ... Each screen displays the measurement data as much as possible When there are more than 2 pieces of motor cards the numeric value display can reach ten pages at most The displayed items can be assigned for each page By selecting a displayed item the numeric data value that is displayed at the position can be changed Single column The measurement data of a harmonic measurement item can be displayed...

Страница 20: ...olumn Two different harmonics measurement can be displayed at the same time in six column display format User defined Users can set and display measurement items according to their own measurement requirements 2 Combined view Users can use the combined view to observe the numeric value vs waveform the numeric value vs trend graph and the numeric value vs histogram simultaneously For example the co...

Страница 21: ...nction selection soft key The user can press the function selection soft key on the display screen to pop up the function module selection window and select the function module in the selection window as shown in Figure 2 4 If there is no operation within 12 seconds after the function selection window pops up the function selection window is automatically hidden Figure 2 4 Measurement function sel...

Страница 22: ...C harmonics analysis cycle by cycle analysis waveform display and vector display of the sampled data 2 7 1 Waveform display The waveforms of voltage current rotating speed torque and other signals are measured This function is used to view and analyze the phase difference of voltage and current signal as well as waveform distortion Several waveforms can be compared in the same group or be divided ...

Страница 23: ...orms display in split screen mode 2 7 2 Trend Analysis The average values of various data in a period of time are measured This function is used to monitor the trends of power supply fluctuation current consumption and other data Up to 16 items of data trends can be viewed simultaneously as shown in Figure 2 7 and Figure 2 8 Figure 2 7 Trend analysis of single measurement item ...

Страница 24: ... Harmonic analysis function The power analyzer provides high bandwidth harmonic analysis function for analyzing harmonic components in the signal such as voltage current power and phase angle The results of harmonic analysis are displayed in bar graphs Harmonics up to 500th order can be displayed and up to eight groups of harmonics measurement can be display simultaneously as shown in Figure 2 9 a...

Страница 25: ...nics 2 7 4 FFT Function The FFT module takes the original data such as voltage and current to implement FFT operation so that the frequency distribution of the original data can be obtained The power analyzer can calculate eight groups of FFT data simultaneously as well as display the numeric values graphs and the numeric values graphs For each FFT waveform you can set the information such as labe...

Страница 26: ...measurement requirements Figure 2 11 FFT numeric values graphs display 2 7 5 IEC Harmonics Measurement Make DFT processing for the original sampling points in IEC harmonics mode then calculate the corresponding results and display data according to the IEC61000 4 7 specification including harmonics interharmonics subgroup power spectrum data and harmonics interharmonics indicator as shown in Figur...

Страница 27: ...er Analyzer Start Guide Figure 2 12 Power spectrum Figure 2 13 All views of IEC harmonics measurement 2 7 6 Vector Display It is used to measure the fundamental voltage phase angle and current phase angle of each wiring unit the phase difference of voltage and current as well as voltage current and power as shown in Figure 2 14 ...

Страница 28: ...lity of light illumination results in the visual response of human eyes which known as flicker The power analyzer measures the relative steady state voltage change dc the maximum relative voltage change dmax the time exceeding the threshold relative to the voltage change d t the short time flicker value Pst the long time flicker value Plt manual measurement can only test dmax and determines whethe...

Страница 29: ...alysis automatic measurement view 2 7 8 Cycle by cycle Analysis Cycle analysis calculates the voltage current active power apparent power reactive power power factor speed torque and mechanical power for each cycle of each AC input unit and wiring unit based on the synchronization source signal The instrument can display the data of 22 cycles of 7 kinds of measurement items in one page The period ...

Страница 30: ... to perform analysis one by one In the normal mode the power analyzer will automatically save the current measurement data and then enter into the normal analysis mode Users can recall the current saved measurement data as well as perform all measurement and analysis operations in the normal mode 2 7 10 Waveform Operation In addition to the waveform display the waveform operation module can also u...

Страница 31: ...d mechanical power directly The signal from the speed sensor or torque meter can select either the analog signal DC voltage or pulse signal In addition by setting the number of motor poles users can calculate the electrical phase angle synchronous speed and slip of the motor and can measure the active power frequency and motor output by this instrument to calculate the motor efficiency and total e...

Страница 32: ...t or the combination of power element and motor element such as 5 channel power input element and 1 channel motor input element as shown in Figure 2 20 The number of input elements is from 1 to 5 An element number is appended to the measured symbol so that the correspondence between the numeric data and the element can be seen For example Urms1 indicates the true voltage RMS of element 1 The volta...

Страница 33: ...08 User Manual V1 00 C Guangzhou ZHIYUAN Electronics Co Ltd PA5000 Series Power Analyzer Start Guide Figure 2 20 Motor signal input Figure 2 21 shows the connection between the input element and the input signal Figure 2 21 Input signal to input element ...

Страница 34: ...uide 2 8 2 Wiring Unit A wiring unit refers to a set of two or three input elements of the same wiring system that are grouped to measure input signals According to the type of wiring mode there are up to three wiring units can be grouped which are indicated by the symbol of ΣA ΣB and ΣC respectively as shown in Figure 2 22 Figure 2 22 Wiring unit ...

Страница 35: ...panel 3 1 Front Panel 3 1 1 Panel components Figure 3 1 Front panel The functions of each part in Figure 3 1 are described as follows Handle Use the handle when moving the instrument as shown in note of Figure 3 1 Power switch The power switch is a push button as shown in note of Figure 3 1 Press the button once to turn it ON and press it again to turn it OFF USB Host port It is used to connect a ...

Страница 36: ... screen is also different Figure 3 2 shows the screen display example when measuring power numeric display in normal measurement Mode Figure 3 2 Screen example in normal measurement mode The functions of each area in Figure 3 2 are described as follows Current operating mode It shows the current operating mode of the power analyzer Over range indicator When the measured value of a power input elem...

Страница 37: ...etc Page number It shows the number of the page where the current measurement data is displayed Input element indicator Used to indicate the currently selected measurement unit to be configured System date time It shows the current date and time USB and Ethernet connection status It shows the USB and Ethernet connection status For detailed information please see Table 3 1 Internal memory usage Its...

Страница 38: ...r Start Guide Figure 3 3 Common setting 2 Display symbols Figure 3 4 shows the symbols that are probably displayed Figure 3 4 Non numeric value display 3 Over rage indication If the measured rms value exceeds 110 of its current range or the measured peak value exceeds 324 of its current range the measured value is display in red color to ...

Страница 39: ... rage indication 3 1 3 Function Key area 1 Overview Figure 3 6 shows the function key area For the keys with Shift function users can double click them to switch the key function For example double click the Element key in Figure 3 6 to select all input elements simultaneously Long press each key to display the help information of this key Figure 3 6 Setting the display key and execution key in th...

Страница 40: ...Press this key to display the System Function Setting menu 2 Help key Press this key to display the help window that provides help information about the current menu 3 Capture key Press this key to save print the screen image data 4 Store key This key is used to start stop the storage operation 5 Touch key It is the switch of the power analyzer touch screen 6 Shift key It is the shift function of ...

Страница 41: ... mode and range 4 Menu operation Run Control key area 1 Function key area description Menu operation Run Control key area is used for menu operation as well as the running and controlling of measurement functions as shown in Figure 3 9 Figure 3 9 Run Control function key area 2 Key function description The description of key functions in Figure 3 9 is as follows Table 3 4 Run Control function key ...

Страница 42: ...on result key description No Function key Description 1 Item key Press Item key to display the item configuration menu when numeric data is displayed on the screen 2 Numeric key Press this key to display the measurement data 3 Form key Configure the display format for the current measurement or analysis function 4 Wave key Display the corresponding waveform of the current measurement data 5 Vector...

Страница 43: ...L function key Perform NULL function and the NULL indicator lights At this time the DC component in the sampled input element or the measurement circuit is removed 4 NULL Set key Press the Shift NULL key to display NULL setting menu Users can specify the NULL operation for each measurement circuit 5 Measure key Display the user defined measurement function menu and set the measurement functions 6 ...

Страница 44: ...lyzer as shown in note of Figure 3 12 Power socket It is shown in note of Figure 3 12 AUX multi device synchronization interface It is shown in note of Figure 3 12 USB Host port There are two USB Host ports as shown in note of Figure 3 12 They are used to connect a USB memory or USB keyboard Trigger input It is sent to each slave card and used for the synchronous triggering of slave cards as shown...

Страница 45: ... is shown in note of Figure 3 12 It is the USB 2 0 high speed Device interface which support for the customized protocol and remote operation GPIB interface It is used for remote control of the terminal as shown in note of Figure 3 12 Now only slave mode is supported Standard serial interface The maximum speed is up to 115200bps as shown in note of Figure 3 12 RGB video output interface The physic...

Страница 46: ...ompatible 3 3 Side Panel Figure 3 13 Right panel description The functions of each part in Figure 3 13 are described as follows Input element 1 5 These are shown in note of Figure 3 13 Input voltage terminal It is used to connect the voltage test line as shown in note of Figure 3 13 Input current terminal It is used to connect the current test line as shown in note of Figure 3 13 External current ...

Страница 47: ...minal motor version It is shown in note of Figure 3 13 B pulse input terminal motor version It is shown in note of Figure 3 13 A pulse input terminal motor version It is shown in note of Figure 3 13 Torque signal input connector motor version It is shown in note of Figure 3 13 This is only for the motor version Receives signals from torque meters when evaluating motors ...

Страница 48: ...easurement circuit Figure 4 1 shows the diagram of the voltage input terminal and current input terminal of PA5000 Series Power Analyzer Figure 4 1 Voltage input terminal current input terminal 4 1 1 Wiring System 1 Wiring setting In order to measure the power of various single phase and three phase power transmission systems users can specify five wiring systems single phase two wire 1P2W single ...

Страница 49: ... ensure measurement accuracy the stray capacitance and the influence factor of measuring voltage and current must be considered Influence of stray capacitance When measuring a single phase device the current input terminal of the instrument is connected to the terminal of Source near the ground This reduces influence of stray capacitance on the measurement accuracy as shown in Figure 4 3 Figure 4 ...

Страница 50: ...s Power Analyzer Start Guide Figure 4 4 Influence of measuring voltage and current on the measurement 1 Single phase two wire system In the single phase two wire system the wiring methods of measuring instrument are different as shown in Figure 4 5 Figure 4 5 Single phase two wire system 1P2W wiring of measuring instrument ...

Страница 51: ...s that is three phase without neutral line In the three phase three wire system the wiring method of measuring instrument is shown in Figure 4 7 Figure 4 7 Three phase three wire system wiring of measuring instrument 4 Three phase three wire three voltage three current In addition there is another three phase three wire three voltage three current system In this system three input elements are con...

Страница 52: ... network transmission lines generally use a three phase four wire system where there are three phase lines and one neutral line N if the neutral point of loop power supply side is grounded the neutral line is also called the zero line In the three phase four wire system the wiring method of measuring instrument is shown in Figure 4 9 Figure 4 9 Three phase four wire system wiring of measuring inst...

Страница 53: ... 4 2 2 Wiring Method When the maximum current value of the measuring object exceeds the maximum measuring range of the instrument users should use the external current transformer to measure the usage of potential transformer is similar and the external voltage transformer PT current transformer CT should be connected to the voltage current input terminal of the input element by cables If it is th...

Страница 54: ...gzhou ZHIYUAN Electronics Co Ltd PA5000 Series Power Analyzer Start Guide 1 One phase two wire system Figure 4 12 One phase two wire system 1P2W wiring example of using PT CT 2 One phase three wire system Figure 4 13 One phase three wire system 1P3W wiring example of using PT CT ...

Страница 55: ...eries Power Analyzer Start Guide 3 Three phase three wire system 1 Three phase three wire system 3P3W Figure 4 14 Three phase three wire system 3P3W wiring example of using PT CT 2 Three voltage three current system 3V3A Figure 4 15 Three phase three wire three voltage three current system wiring of measuring instrument ...

Страница 56: ...r wire system Figure 4 16 Three phase four wire system 3P4W wiring example of using PT CT 4 2 3 Diagram of Connecting Test Accessories Figure 4 17 Use current transformer CT and current input terminal to measure current 4 3 Connect Measuring Circuit by Current Sensor The terminal symbols of external current sensor in PA5000 series power analyzer is shown in Figure 4 18 ...

Страница 57: ...t interface to measure current 4 3 2 Wiring Method When the maximum current value of the measuring object exceeds the maximum measuring range of the instrument users should use the external current transformer to measure and the external current sensor should be connected to the current input interface by cables Before customers use the PA power analyzer be sure to read Connect external sensors an...

Страница 58: ... V1 00 C Guangzhou ZHIYUAN Electronics Co Ltd PA5000 Series Power Analyzer Start Guide 4 3 3 Diagram of Connecting Test Accessories Figure 4 20 Use shunt sensor input terminal to measure current Figure 4 21 Use voltage output sensor input terminal to measure current ...

Страница 59: ...ment is switched on at least 30 minutes warm up time Users can also use the configuration wizard to complete the initialization of above measurement conditions For detailed information please refer to the Configuration Wizard section 5 2 System Settings The following system function can be performed or set on the instrument date time key lock key configuration monitor capture power management touc...

Страница 60: ...ent zero level and therefore improves the measurement correctness of instrument The zero calibration mode contains auto zero calibration and manual zero calibration Users may set auto zeroing in the measurement menu shown in Figure 5 2 If the auto zeroing is enabled the instrument automatically performs zero calibration operation after the measurement range and input filter are modified however if...

Страница 61: ...ble Disable auto zeroing function Press the auto zeroing soft key in the measurement menu shown in Figure 5 2 and then users can select whether to enable the auto zeroing function in the pop up dialog box 4 Perform manual zero calibration Press the zero calibration soft key in the measurement menu shown in Figure 5 2 to perform manual zero calibration For accurate measurements it is recommended th...

Страница 62: ... go to the next setting step finally press the Finish soft key to make the settings take effect and exit the wizard The wiring measurement harmonics and motor configuration can be completed in turn in the configuration wizard Users can easily set various parameters for measurement in the interface shown in Table 5 1 Figure 5 3 Configuration wizard Table 5 1 Configuration wizard operation interface...

Страница 63: ...ronics Date 2016 12 08 User Manual V1 00 C Guangzhou ZHIYUAN Electronics Co Ltd PA5000 Series Power Analyzer Start Guide Motor settings Remark the motor settings only appear in the configuration wizard of power analyzer motor version ...

Страница 64: ...sible The effect of the inappropriate range is described as follows 1 Measurement accuracy since the accuracy indicator is reading range the range error will increase if select an inappropriate range 2 Frequency measurement PA5000 supports hardware frequency measurement The hardware frequency measurement can be performed only if the input signal range is greater than 30 of the current range If the...

Страница 65: ...nt range 1 1 The crest factor of power analyzer is fixed to 3 1 Select input element Press the Element button on the front panel to select an input element for which the range should be set and the input element selection interface as shown in Figure 6 1 will pop up The corresponded indicator will light up after select the input element Figure 6 1 shows the input element 1 is selected and the indi...

Страница 66: ...the current range Disable the external sensor Users can press the ExtSensor button on the front panel shown in Figure 3 8 to turn off the external sensor and the ExtSensor button goes out Adjust current range Adjust the current range knob to set the current range Adjust the knob in clockwise to increase the range Adjust the knob in counter clockwise to decrease the range When the knob is pressed t...

Страница 67: ... range adjustment knob Adjust the knob in clockwise to increase the range Adjust the knob in counter clockwise to decrease the range When the knob is pressed the auto range mode is activated and the corresponding Auto indicator lights up Fox example when the current sensor with 10mV A transformation ratio is used to measure a 100A current the maximum voltage of 10mV A 100A 1V will be generated The...

Страница 68: ...hen the voltage and current data before transformation as well as the corresponding waveform display data can be calculated Enable Disable PT CT ratio settings Users can enable disable PT CT ratio settings in the dialog box shown in Figure 6 4 If the potential or current transformer is used in the measurement select the check boxes beside the PT or CT ratio Then the voltage U current I power P S Q...

Страница 69: ...nce signal for the measurement operation and the data update rate determines the update period of the sampled data 6 3 1 Set synchronous source 1 Steps Synchronous source display menu Press the Sync Source soft key and the synchronous source display menu shown in Figure 6 7 will pop up Figure 6 7 Synchronous source menu Select the element Select the element for which the synchronous source should ...

Страница 70: ...nchronous signal is distorted If the synchronous source signal is distorted or there is high frequency noise overlapped it may cause a signal that is different from the signals within fundamental frequency range to be measured If this is the case please turn on the frequency filter If the signal level of synchronous source is too low If the signal level of synchronous source is below the zero cros...

Страница 71: ...ure 6 10 Figure 6 10 Data update rate selection 6 4 Filter Configuration 1 Function Introduction The power analyzer has two kinds of filters They are line filter and frequency filter which are used to eliminate the noise in the measurement signal The line filter is used in the voltage and current measurement circuit and the frequency filter is used in the frequency measurement circuit The user can...

Страница 72: ...re 6 12 When OFF is selected the line filter is turned off for the voltage and current channel of corresponding input element The cut off frequency of line filter can be selected from 1MHz 300kHz 100Hz 100kHz If the cut off frequency is selected within 100Hz 100kHz users can set a cut off frequency in the range of 100Hz 100kHz and the unit is kHz as shown in Figure 6 13 Figure 6 13 Cut off frequen...

Страница 73: ...e cut off frequency of frequency filter can be selected from 1kHz 500Hz 100Hz as shown in Figure 6 15 Figure 6 15 Enable Disable frequency filter Please pay the following attentions when using the frequency filter The frequency filter can be used for accurate zero crossing point detection There is about 5 lag when the power analyzer detects the zero crossing point When the frequency of input signa...

Страница 74: ...wer and reactive power are different according to the above formula Therefore three kinds of calculation formulas are provided for apparent power and reactive power Users can select the calculation formula for apparent power and reactive power from Type1 3 shown in Table 6 2 Table 6 2 Selectable calculation formulas in each measurement mode Measurement mode Calculation formulas of S and Q TYPE1 TY...

Страница 75: ...the coefficient should be set The standard and coefficient should be selected before setting the corrected power The selectable standards include IEC76 1 1976 IEEE C57 12 90 1993 IEC76 1 1993 and the P1 and P2 coefficient can be set in the range of 0 0001 9 9999 2 Steps 1 Display formula dialog box Press the Measure button on the front panel to display the measurement menu and then click the formu...

Страница 76: ... and select the standard from IEC76 1 1976 IEEE C57 12 90 1993 or IEC76 1 1993 or IEC76 1 1993 as shown in Figure 6 18 Figure 6 18 Select the Pc formula Set coefficient When the applicable standard of the formula is IEC76 1 1976 IEEE C57 12 90 1993 users can set the P1 and P2 coefficient as shown in Figure 6 19 Figure 6 19 Set coefficient 3 Note The formula settings of apparent power and reactive ...

Страница 77: ...100 The η formula is set by users based on the specific circumstance For example if the input power of device is PΣA and the output power of device is PΣB the power conversion efficiency of device can be calculated by setting η PΣB PΣA however for the instrument with motor input element the formula can be set to η Pm PΣA or Pm PΣB and the power conversion efficiency of motor is calculated through ...

Страница 78: ...elect Udef1 or Udef2 as the numerator or denominator and configure Udef1 or Udef2 The Udef1 can be set as the sum of individual power as shown in Figure 6 22 Figure 6 22 Efficiency calculation items setting 3 Note The efficiency calculation cannot be performed in the IEC harmonic measurement mode voltage fluctuation and flick measurement mode and cycle analysis mode Please make sure that all the p...

Страница 79: ...al frequency is low the numerical value display is unstable and difficult to be read in this case the averaging function is enabled and used to obtain and display the average value of multiple measurements As a result if the input signal changes drastically the response of the measured value to the change becomes slower The power analyzer supports both exponential average and moving average 1 Expo...

Страница 80: ... is Lin moving average the average number is set 6 7 Synchronous Measurement The alone master or slave mode can be selected in the synchronous measurement The alone mode is selected for a single instrument When two instruments are connected together the synchronous master slave measurement can be performed Figure 6 25 shows the synchronous measurement menu Figure 6 25 Synchronous measurement menu ...

Страница 81: ...l sensor transformer is connected The power analyzer provides the U I phase setting for phase delay compensation and phase angle measurement error decrease thus improving the measurement accuracy The U I phase can be set in the range of 50000 00ns 50000 00ns and its minimum resolution is 0 01ns For the specific setting value please refer to the specifications of sensor transformer Figure 6 26 U I ...

Страница 82: ...ection of power cord and host power interface as well as the power outlet connection is correct Check the supply voltage is set within the allowable range Check the display settings Check the fuse is blown The displayed data are improper Check the ambient temperature and humidity conform to the specifications of power analyzer Check whether it is affected by noise Check the connection of measuring...

Страница 83: ...lace a new media as needed The operation cannot be set or controlled via the communication interface Check whether the settings of GPIB address or serial port conform to the specifications Check whether the interface is satisfied with electrical and mechanical specifications 7 2 Recommended Accessory Replace Period The following accessories are recommended to be replaced regularly Please contact Z...

Страница 84: ...rent Floating input shunt input 8 1 3 Number of Input Elements Table 8 3 Number of input elements Parameters Description Number of elements Support up to 7 input elements The power and motor input element can be combined with each other 8 1 4 Voltage Measurement Range Table 8 4 Voltage measurement range Input Parameters Parameters Description PA5000 Series Voltage measurement range rated 1 5V 3V 6...

Страница 85: ...imes the measurement range and the RMS value should not exceed 3 times the measurement range Sensor input impedance Input resistance about 1MΩ input capacitance about 45pF 2 50A input element Table 8 6 Current measurement range of 50A input element 50A Direct Input Input Parameters Description Current measurement range rated 1A 2 5A 5A 10A 25A 50A The crest factor is 3 Maximum continuous allowable...

Страница 86: ...ching of power input element Range The range can be set for each input element Auto range Range increase When the measurement value of U and I exceeds 108 of the rated range When the peak value exceeds 324 of the rated range Range decrease When the measurement value of U and I is less than 30 of the rated range When the peak value is less than 300 of the lower range Table 8 11 Range switching of m...

Страница 87: ...ency Data update Rate 500ms Table 8 14 Measurement accuracy of PA5000 series 5A power element Indicator reading measurement range Frequency range of input signal Current Voltage Sensor Power DC 0 05 0 10 0 05 0 10 0 1Hz f 30Hz 0 10 0 10 0 20 0 20 30Hz f 45Hz 0 10 0 10 0 10 0 20 45Hz f 66Hz 0 10 0 05 0 10 0 05 66Hz f 1kHz 0 10 0 10 0 20 0 10 1kHz f 10kHz 0 15 0 10 0 30 0 10 10kHz f 50kHz 0 20 0 10 ...

Страница 88: ...KHz Voltage Sensor 0 50 0 30 Direct current input 0 10f 0 2 0 10 Sensor 0 70 0 50 Direct current input 0 30f 9 5 0 50 100KHz f 200KHz Voltage Sensor 0 004f 0 8 0 5 Direct current input 0 05f 5 0 0 5 Sensor 0 02f 0 3 1 0 Direct current input 0 09f 11 1 0 200KHz f 500KHz Voltage Sensor 0 004f 0 8 0 5 Sensor 0 02f 0 3 1 0 500KHz f 1MHz Voltage Sensor 0 01f 2 2 1 0 Sensor 0 042f 12 2 0 Notes The measu...

Страница 89: ...ge of 10kHz 1MHz if the current exceeds 0 33A the current accuracy is just reference value The current accuracy is just reference value within the range of 30kHz 1MHz 50A 3A 0 33A 10Hz 45Hz 10kHz 100kHz 500kHz Frequency Current 400Hz 30kHz 20A 5kHz For the waveform display data the accuracy of Upk and Ipk should be their respective accuracy value 3 of the range reference value However for the exte...

Страница 90: ... reading and plus 10 7 U2 of the range 5A input element current and power accuracy Input AC current 6 10 3 I2 of the reading Input DC current 6 10 3 I2 4 10 3 I2 μA of the reading 50A input element current and power accuracy Input AC current 6 10 5 I2 of the reading Input DC current 6 10 5 I2 4 10 3 I2 mA of the reading Even if the input current decreases the self heating effect will continue unti...

Страница 91: ...uld be 10 110 of the measurement range Urmn and lrmn should be 10 110 of the measurement range The synchronous source level should satisfy the input signal level for frequency measurement 8 3 3 Input Display Value The maximum display value is 140 of the voltage or current rated range The minimum display value Urms Uac Irms and Iac can be as low as 0 5 of the measurement range Umn Urmn Imn and Irmn...

Страница 92: ... Accuracy of 12 months Accuracy of 12 months accuracy of 6 months plus the reading error for accuracy of 6 months X 0 5 8 4 Measurement Modes Table 8 16 Measurement modes Measurement modes Description Normal Mode The voltage current power waveform computation and integral values are measured in this mode You can use the waveform display X 8 bar graph display X 8 vector graph display X 2 and X Y fi...

Страница 93: ... Voltage V Urms TRMS Umn ARV calibrated to RMS Udc Linear Average Voltage Urmn Rectified Mean Voltage Uac Voltage RMS that remove DC signal Support for simultaneous measurements peak factor up to 300 Current A Irms TRMS Imn ARV calibrated to RMS Idc Linear Average Current Irmn Rectified Mean Current Iac Current RMS that remove DC signal Support for simultaneous measurements peak factor up to 300 A...

Страница 94: ...ent function and computation The measurement interval is dependent on the zero crossing point of the reference signal except watt hour integral value WP and current integral value q in DC mode In harmonics mode the measurement interval is the time period from the beginning of the data update cycle until 8192 points have been sampled at the harmonics sampling frequency Wiring Method You can select ...

Страница 95: ...same time Display Update Rate Same as the data update rate Response Time Same as the data update rate Hold Maintain data display Single Measurement Perform one measurement in the HOLD state 8 7 Motor Function 8 7 1 Analog Input Parameters Table 8 19 Analog input parameters Items Specification Input mode Safety BNC floating isolated electrical isolation between A B and Z of TORQUE and SPEED Input i...

Страница 96: ...irection is detected the A and B phase of rotary encoder input into the A and B terminals and Z phase inputs into the Z terminal of rotary encoder for electrical phase angle measurement 8 8 Waveform Sampling Data Storage Function Table 8 21 Waveform sampling data storage function Parameters Description Storage Items Voltage waveform current waveform computing waveform FFT computation data rotating...

Страница 97: ...n Storage temperature 20 C 50 C Transportation temperature 20 C 50 C VGA interface Support VGA interface Communication interface GPIB 1000Mbit LAN RS 232 USB2 0 High Speed Device USB2 0 High Speed Host support for U disk SFP triggering input output AUX Back up battery CR2032 lithium battery maintains real time clock operation Weight About 12kg host 7 power units the national standard power cord me...

Страница 98: ...te 2016 12 08 User Manual V1 00 C Guangzhou ZHIYUAN Electronics Co Ltd PA5000 Series Power Analyzer Start Guide 8 11 External Dimensions Figure 8 1 shows the external dimensions of PA5000 power analyzer unit mm Figure 8 1 External dimensions ...

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