AUTOMATIC VERIFICATION SYSTEM AND METHOD FOR
FOUR QUADRANT ENERGY MEASUREMENT IN
ELECTRONIC TRIVECTOR METER
A) TECHNICAL FIELD
[0001] The present invention generally relates to a testing method and system for energy meter and more particularly relates to an automatic testing method and system for verifying the four quadrant energy measurement in energy meter such as electronic trivector meter.
B) BACKGROUND OF THE INVENTION
[0002] An electric meter or energy meter is a device that measures the amount of electrical energy supplied to a residence or business. The most common type is more properly known as a (kilo) watt-hour meter or a joule meter. The most common unit of measurement on the electricity meter is the kilowatt-hour which is equal to the amount of energy used by a load of one kilowatt over a period of one hour, or 3,600,000 joules. The demand is normally measured in watts, but averaged over a period, most often a quarter or half an hour.
[0003] The meters for measuring single phase energy are also available. It also provides capabilities like Maximum demand with date & time, a kWh Backups, etc. The modem electricity meters operate continuously by measuring the instantaneous voltage (volts) and current (amperes) levels and computing the product of these to give an instantaneous electrical power (watts) which is then integrated against time to

give the energy consumed (in joules, kilowatt-hours etc). The meters fall into two basic categories, namely, the electromechanical meters and the electronic meters.
[0004] The most common type of electricity meter is the electromechanical induction meter. The electromechanical induction meter operates by counting the revolutions of an aluminum disc which is made to rotate at a speed proportional to the power. The number of revolutions is thus proportional to the energy used. It consumes a small amount of power, typically around 2 watts.
[0005] The metallic disc is acted upon by two coils. One coil is connected in such a way that it produces a magnetic flux in proportion to the voltage and the other produces a magnetic flux in proportion to the current. This produces eddy currents in the disc and the effect is such that a force is exerted on the disc in proportion to the product of the instantaneous current and voltage. A permanent magnet exerts an opposing force proportional to the speed of rotation of the disc so that the rotation of the disc is stopped, when power is not supplied. As a result, the disc is rotated at a speed proportional to the power being used. The type of meter described above is used on a single-phase AC supply. Different phase configurations use additional voltage and current coils.
[0006] Some of the electricity meters are solid state type and they display the power used on an LCD module, while the electronic meters can be read automatically. In addition to measuring the consumption of the electricity, the solid state meters may also record other parameters of the load and supply such as maximum demand, power factor and reactive power used etc. They may also include the electronic clock

mechanisms to compute a value, rather than an amount, of electricity consumed, with the pricing varying of by the time of day, day of week, and seasonally.
[0007] The Automatic Meter Reading (AMR) and Remote Meter Reading (RMR) describe various systems that allow meters to be checked by without the need to send a meter reading personnel out. This may be effectively achieved using the off-site metering technology. The electronic meter is placed at the junction point where all the connections originate, inaccessible to the end-user, and it relays the readings via the AMR technology to the utility,
[0008] The testing of the electronic meters have always generated a problem. A special mode of register operation known as the test mode is available in the industry to perform the testing operation. However no effort has been made to improve the overall meter testing operation. The electronic meters have the potential of providing the faster testing times, multiple metering functions and calibration of the meter through software adjustment process. However the implementation of such functions may be expensive and complicated.
[0009] It is necessary that the watt- hour meters are to be tested and serviced periodically to ensure the reliability and the accuracy of the energy meter.
[0010] The Four Quadrant Energy measurement is a basic feature of Electronic Trivector Meter (ETVM). Since the important usage of ETVM is for billing of energy usage, the verification of energy measurement is very crucial during the validation of the ETVM. The number of conditions in which the testing needs to be done are many

and hence the testing of the quadrant energy measurement in an ETVM is a monotonous job.
[0011] At present a dial test is performed to verify the energy registration in an energy meter. It involves noting the initial and final readings manually. Then the displayed energy consumption is compared with the energy that is calculated based on the voltage and current given to the meter and the test duration. The main disadvantage of this testing method is that the testing is done manually and many conditions are required to be checked. Thus the dial test method leads to several errors in measurement.
[0012] Hence there is a need to perform the verification of the four quadrant energy measurement in an ETVM automatically, accurately, easily, efficiently and quickly.
C) OBJECTS OF THE INVENTION
[0013] The primary object of the invention is to provide a testing method and system to verify the quadrant energy measurement in an ETVM automatically and quickly.
[0014] Another object of the present invention is to provide a testing method and system to verify the quadrant energy measurement in an ETVM automatically and accurately thereby reducing the generation of human error.

[0015] Yet another object of the present invention is to provide a testing method and system to verify the quadrant energy measurement in an ETVM automatically and accurately without requiring a manual intervention thereby saving valuable man-hours.
[0016] Yet another object of the present invention is to provide a testing method and system to verify the quadrant energy measurement in an ETVM automatically and accurately during the non office hours and to enable to verify the test results during the office hours.
[0017] Yet another object of the present invention is to provide a testing method and system to verify the quadrant energy measurement in an ETVM automatically and accurately by verifying all the possible test conditions within the available testing time.
[0018] Yet another object of the present invention is to provide a testing method and system to enable a user to define the test conditions to verify the quadrant energy measurement in an ETVM automatically and accurately so that the device may test any conditions in the ETVM.
[0019] Yet another object of the present invention is to provide a testing method and system to verify the quadrant energy measurement in an ETVM automatically and accurately and to enable the user to programme the test duration dynamically and easily.

[0020] The other objects and advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.
D) SUMMARY OF THE INVENTION
[0021] The above mentioned shortcomings, disadvantages and problems are addressed herein and which will be understood by reading and studying the following specification.
[0022] The various embodiments of the present invention provides a method and system to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently.
[0023] According to one embodiment of the present invention, an automatic static power source is coupled to an Electronic Trivector Meter (ETVM) to verify the four quadrant energy measurement in the ETVM automatically. A personal computer is communicatively connected to the automated power source to input the commands into the automatic power source to set the source parameters like voltage, current, power factor, etc, and to set the pre defined test conditions. The test conditions and the source parameters are input into the ETVM from the automatic power source to start a test operation.

[0024] The ETVM connected to the source is allowed to accumulate energy for fixed test duration. The initial and the final energy readings are collected through an optical communication port in the ETVM and stored by the Personal Computer (PC), The instantaneous values of power are also collected from the ETVM. Then the energy consumption is calculated from the power readings received from the ETVM during the test duration and compared with the energy incremented and registered in the ETVM. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0025] According to another embodiment of the present invention, a method is provided to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently. According to the embodiment an automated power source is connected to an ETVM to input voltages, currents and power factor as per the predefined conditions.. The commands are input into the automated power source through a personal computer through an interface. The Source parameters such as Voltage, Current, Power factor may be set automatically using an application software. The commands are sent to the automated power source to set several predefined power system conditions.
[0026] When the predefined power system test conditions are set in, the ETVM that is connected to the automatic power source is allowed to accumulate energy for fixed

test duration. The initial and the final energy readings are collected and stored by the personal computer during the each test duration. The instantaneous values of power are also collected from the ETVM for each test duration. Then the energy value is calculated for each test duration from the power readings collected during the test duration and compared with the increment in energy level registered in the ETVM during the test duration. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0027] Thus the various embodiments of the present invention provides a method and system to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently. The test device and method enables a user to define the test conditions with respect to his requirement so that the method and device is used to test the ETVM in any desired test condition easily, efficiently quickly and automatically. The test device and the method further enable the user to program the test duration to any test duration easily and automatically. The test results are indicated in an excel sheet to enable the user to understand the test report easily efficiently and quickly. The method and the device enables to verify the measurement of four quadrant energy levels in an ETVM automatically thereby eliminating the need for manual intervention and helps to save the valuable man hours. The testing may be carried out during the non-office hours and the test result may be

verified during the next office period. Since the quadrant energy measurement is verified automatically using the test method and the device of the present invention, the need for the manual intervention is eliminated thereby preventing the generation of human errors in recording and calculating the numerical data and the energy levels. The test method and device of the present invention also helps to test all the possible conditions within the available testing time.
[0028] The automatic verification method and system for the measurement of four quadrant energies in an ETVM may be used by the meter manufacturers for the black box testing of ETVMs and also by the electricity distribution and supply companies for executing the sample meter testing operation.
[0029] These and other objects and advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.
E) BRIEF DECRIPTION OF THE DRAWINGS
[0030] The other objects, features and advantages will occur to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings in which:

[0031] FIGURE. 1 illustrates the functional block diagram a testing system for verifying the measurement of four quadrant energy levels automatically in an ETVM according to one embodiment of the present invention.
[0032] FIGURE. 2 illustrates a flow chart explaining the method for verifying the four quadrant energy measurement automatically in an ETVM according to one embodiment of the present invention.
[0033] FIGURE* 3 illustrates a schematic diagram indicating the four quadrants and the measured energy levels in each quadrant in the system and the method for verifying the four quadrant energy measurement automatically in an ETVM according to one embodiment of the present invention.
[0034] Although specific features of the present invention are shown in some drawings and not in others. This is done for convenience only as each feature may be combined with any or all of the other features in accordance with the present invention.
F) DETAILED DESCRIPTION OF THE INVENTION
[0035] The various embodiments of the present invention provides a method and system to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently.

[0036] According to one embodiment of the present invention, an automatic static power source is coupled to an Electronic Trivector Meter (ETVM) to verify the four quadrant energy measurement in the ETVM automatically. A personal computer is communicatively connected to the automated power source to input the commands into the automatic power source to set the source parameters like voltage, current, power factor, etc., and to set the pre defined test conditions.
[0037] The ETVM connected to the source is allowed to accumulate energy for fixed test duration. The initial and the final energy readings are collected through an optical communication port in the ETVM and stored by the personal computer (PC). The instantaneous values of power are also collected from the ETVM. Then the energy consumption is calculated from the power readings received from the ETVM during the test duration and compared with the energy incremented and registered in the ETVM. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0038] According to another embodiment of the present invention, a method is provided to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently. According to the embodiment an automated power source is connected to an ETVM to input the test conditions, test duration, and test parameters into the ETVM. The commands are input into the automated power source

through a personal computer through an interface. The Source parameters such as Voltage, Current, Power factor may be set automatically using an application software. The commands are sent to the automated power source to set several predefined power system conditions. The set conditions are input into the ETVM through a communication system.
[0039] When the predefined power system test conditions are set in, the ETVM that is connected to the automatic power source is allowed to accumulate energy for fixed test duration. The initial and the final energy readings are collected and stored by the personal computer during the each test duration. The instantaneous values of power are also collected from the ETVM during the each test duration. Then the energy value is calculated for each test duration from the power readings collected during the test duration and compared with the increment in energy level registered in the ETVM during the test duration. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0040] According to one embodiment of the present invention, an automatic static power source is communicatively coupled to an Electronic Trivector Meter (ETVM) to verify the four quadrant energy measurement in the ETVM automatically. The

automatic power source is connected to the electronic trivector meter to input the test conditions and the test parameters.
[0041] A personal computer is communicatively connected to the automated power source to input the commands into the automatic power source to set the source parameters like voltage, current, power factor, etc., and to set the pre defined test conditions. The personal computer is communicatively connected to the automated power source through wired or wireless communication systems to input the commands to set the desired test conditions and the desired test parameters. According to one embodiment of the present invention, the personal computer is provided with two RS232 communication ports to communicatively couple the personal computer with the static power source and the electronic trivector meter respectively.
[0042] The test parameters, the test conditions and the test duration are set using an application software such as Windows based Pc software developed in Visual Basic 6.0. The source parameters include voltage, current, power factor etc. The energy levels to be measured and verified include kWh, kVarh (both Lag and Lead), kVAh energies for both forward and Reverse direction, etc. The test conditions that are input into the ETVM are as follows.
• Energy recording in all four quadrants.
• Three phase, Two phase and single phase conditions
• One/two phase Current reversal conditions

• Low power factor conditions
• kVAh calculation in Lead treated as UPF configuration
• kVAh calculation in Lead treated as Lead configuration
• Unidirectional and Bidirectional energy registration configuration.
The total test conditions that need to be verified will be more than lOO.The data that are input into the ETVM from the automatic power source includes the total number of test conditions, the values of voltage, current and power factor for each phase and for each test condition and the test duration for each test condition. The test conditions and the source parameters are input into the ETVM from the automatic power source to start a test operation.
[0043] The ETVM connected to the source is allowed to accumulate energy for the preset test duration specified by the test device. The initial and the final energy readings are collected through a communication device connected to an optical communication port in the ETVM and stored by the personal computer (PC).
[0044] The communication device may be a wired or wireless communication device. According to one embodiment of the present invention, the communication device may be a RS 232 communication interface.
[0045] The instantaneous values of power are also collected from the ETVM. Then the energy consumption is calculated from the power readings received from the

ETVM during the test duration and compared with the energy incremented and registered in the ETVM. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0046] The FIG. 1 shows the functional block diagram a testing system for verifying the measurement of four quadrant energy levels automatically in an ETVM according to one embodiment of the present invention. With respect to FIG.1, an automatic static power source is coupled to an Electronic Trivector Meter (ETVM) to verify the four quadrant energy measurement in the ETVM automatically. The automatic power source is connected to the electronic trivector meter to input the test conditions and the test parameters.
[0047] A personal computer is communicatively connected to the automated power source to input the commands into the automatic power source to set the source parameters like voltage, current, power factor, etc., and to set the pre defined test conditions. The personal computer is communicatively connected to the automated power source through wired or wireless communication systems to input the commands to set the desired test conditions and the desired test parameters. According to one embodiment of the present invention, the personal computer is provided with two RS232 communication ports are used to communicatively couple

the personal computer with the static power source and the electronic trivector meter respectively.
[0048] The test conditions and the source parameters are input into the ETVM from the automatic power source to start a test operation. The test parameters, the test conditions and the test duration are set using an application software such as Windows based Pc software developed in Visual Basic 6.0. The source parameters include voltage, current, power factor etc. The energy levels to be measured and verified include kWh, kVarh (both Lag and Lead), kVAh energies for both forward and Reverse direction, etc. The test conditions that are input into the ETVM are as follows.
• Energy recording in all four quadrants.
• Three phase, Two phase and single phase conditions
• One/two phase Current reversal conditions
• Low power factor conditions
• kVAh calculation in Lead treated as UPF configuration
• kVAh calculation in Lead treated as Lead configuration
Unidirectional and Bidirectional energy registration configuration.
The total test conditions that need to be verified will be more than 100.

[0049] The ETVM connected to the source is allowed to accumulate energy for the test duration specified by the test device. The initial and the final energy readings are collected through a communication device connected to an optical communication port in the ETVM and stored by the personal computer (PC). The communication device
may be a wired or wireless communication device. According to one embodiment of the present invention, the communication device may be a RS 232 communication interface.
[0050] The instantaneous values of power are also collected from the ETVM. Then the energy consumption is calculated from the power readings received from the ETVM during the test duration and compared with the energy incremented and registered in the ETVM. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0051] The FIG. 2 illustrates a flow chart explaining the method for verifying the four quadrant energy measurement automatically in an ETVM according to one embodiment of the present invention. The method is provided to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently. With respect to the flow chart shown in FIG. 2, an automated power source is connected to

an ETVM to input the test conditions, test duration, and test parameters into the ETVM. The commands are input into the automated power source through a personal computer to set the source parameters like voltage, current, power factor, etc., and to set the pre defined test conditions.
[0052] The Source parameters such as Voltage, Current, Power factor may be set automatically using an application software. The commands are sent to the automated static power source to set several predefined power system conditions. The test conditions and the source parameters are input into the ETVM from the automatic power source to start a test operation. The test parameters, the test conditions and the test duration are set using application software such as Windows based Pc software developed in Visual Basic 6.0. The source parameters include voltage, current, power factor etc. The energy levels to be measured and verified include kWh, kVarh (both Lag and Lead), kVAh energies for both forward and Reverse direction, etc. The test conditions that are input into the ETVM are as follows.
• Energy recording in all four quadrants.
• Three phase. Two phase and single phase conditions
• One/two phase Current reversal conditions
• Low power factor conditions
kVAh calculation in Lead treated as UPF configuration
• kVAh calculation in Lead treated as Lead configuration
• Unidirectional and Bidirectional energy registration configuration.

The total test conditions that need to be verified will be more than 100.
[0053] The set conditions are input into the ETVM through a communication system. When the predefined power system test conditions are set in, the test operation is started and the ETVM that is connected to the automatic power source is allowed to accumulate energy for fixed test duration. The initial and the final energy readings are collected and stored by the personal computer during the each test duration.
[0054] The initial energy consumption reading is collected from the ETVM during the beginning of each test duration. Then the ETVM is allowed to accumulate energy for the test duration specified by the test device. Mean while the instantaneous values of power are also collected from the ETVM during the each test duration. After the completion of the test duration, the energy accumulation by the ETVM is stopped by tuming off the current input from the static power source and the final energy consumption reading registered in the ETVM is collected.
[0055] Then the energy value is calculated for each test duration from the initial and the final power readings collected during the test duration and compared with the increment in energy level registered in the ETVM during the same test duration. The energy registered in the ETVM is verified based on the quadrant of operation, the Unidirectional /Bidirectional configuration, the selected kVAh calculation method. Similarly the ETVM is tested under another test condition which is set by the automatic power source. Thus the verification process is continued until the ETVM is

tested under all the input test conditions. The results may be exported to Microsoft Excel worksheet to generate a test report.
[0056] The FIG. 3 illustrates a schematic diagram indicating the four quadrants and the measured energy levels in each quadrant in the system and the method for verifying the four quadrant energy measurement automatically in an ETVM according to one embodiment of the present invention, the measured and the verified energy level in each quadrant during the test period includes kWh, kVarh (both Lag and Lead), kVAh energies for both forward and Reverse direction.
[0057] Thus the various embodiments of the present invention provides a method and system to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently. The test device and method enables a user to define the test conditions with respect to his requirement so that the method and device is used to test the ETVM in any desired test condition easily, efficiently quickly and automatically. The test device and the method further enable the user to program the test duration to any test duration easily and automatically. The test results are indicated in an excel sheet to enable the user to understand the test report easily efficiently and quickly. The method and the device enables to verify the measurement of four quadrant energy levels in an ETVM automatically thereby eliminating the need for manual intervention and helps to save the valuable man hours. The testing may be carried out during the non-office hours and the test result may be verified during the next office period. Since the quadrant energy measurement is verified automatically using the test method and the device of the present invention,

the need for the manual intervention is eliminated thereby preventing the generation of human errors in recording and calculating the numerical data and the energy levels. The test method and device of the present invention also helps to test all the possible conditions within the available testing time.
[0058] The automatic verification method and device for the measurement of four quadrant energies in an ETVM may be used by the meter manufacturers for the black box testing of ETVMs and also by the electricity distribution and supply companies for executing the sample meter testing operation.
G) ADVANTAGES OF THE INVENTION
[0059] Thus the various embodiments of the present invention provides a method and system to verify the quadrant energy measurement in an ETVM automatically, quickly, easily and efficiently. The test device and method enables a user to define the test conditions with respect to his requirement so that the method and device is used to test the ETVM in any desired test condition easily, efficiently quickly and automatically. The test device and the method further enable the user to program the test duration to any test duration easily and automatically. The test results are indicated in an excel sheet to enable the user to understand the test report easily efficiently and quickly. The method and the device enables to verify the measurement of four quadrant energy levels in an ETVM automatically thereby eliminating the need for manual intervention and helps to save the valuable man hours. The testing may be carried out during the non-office hours and the test result may be

verified during the next office period. Since the quadrant energy measurement is verified automatically using the test method and the device of the present invention, the need for the manual intervention is eliminated thereby preventing the generation of human errors in recording and calculating the numerical data and the energy levels. The test method and device of the present invention also helps to test all the possible conditions within the available testing time.
[0060] The automatic verification method and device for the measurement of four quadrant energies in an ETVM may be used by the meter manufacturers for the black box testing of ETVMs and also by the electricity distribution and supply companies for executing the sample meter testing operation.
[0061] Although the invention is described with various specific embodiments, it will be obvious for a person skilled in the art to practice the invention with modifications. However, all such modifications are deemed to be within the scope of the claims.
[0062] It is also to be understood that the following claims are intended to cover all of the generic and specific features of the present invention described herein and all the statements of the scope of the invention which as a matter of language might be said to fall there between.

CLAIMS
WHAT IS CLAIMED IS:
1. An automatic verification system for quadrant energy measurement in Electronic Trivector Meter (ETVM), the system comprising:
An automatic static power source communicatively connected to the ETVM to input source parameters into the ETVM with respect to a test condition;
A personal computer communicatively connected to the automatic static power source to input commands into the automatic power source to set the source parameters;
Wherein the personal computer is communicatively connected to the ETVM to receive the initial and the final energy readings from the ETVM during a test duration to calculate energy level and to compare the calculated energy level with the increase in the energy level registered in the ETVM during the test period.
2. The system according to claim 1, wherein the source parameters are set automatically by executing an application software in the personal computer.

3. The system according to claim 1, wherein the source parameter is a voltage level.
4. The system according to claim 1, wherein the source parameter is a current level.
5* The system according to claim 1, wherein the source parameter is a power factor.
6. The system according to claim 1, wherein the input commands by the personal computer includes the total number of test conditions, the voltage value, the current value and the power factor for each phase under each test condition.
7. The system according to claim 1, wherein the measured energy level includes kWh, kVarh (both lag and lead), kVAh energies for both forward and reverse directions.
8. The system according to claim 1, wherein the personal computer is connected to the automatic static power source through a communication system.
9. The system according to claim 8, wherein the communication device is a wired communication system.

10. The system according to claim 8, wherein the communication device is a wireless communication system.
11. The system according to claim 1, wherein the personal computer is connected to the ETVM through a communication system.
12. The system according to claim 11, wherein the communication device is a wired communication system.
13. The system according to claim 11, wherein the communication device is a wireless communication system.
14. The system according to claim 1, wherein the automatic static power source is connected to the ETVM through voltage and current cables.
15. An automatic verification method for quadrant energy measurement in Electronic Trivector Meter (ETVM), the method comprising:
Connecting an automatic static power source to the ETVM to input the source parameters into the ETVM with respect to a test condition;

communicatively connecting a personal computer to the automatic static power source to input commands into the automatic power source to set the source parameters;
Wherein the personal computer is communicatively connected to the ETVM to receive the initial and the final energy readings from the ETVM during a test duration to calculate energy level and to compare the calculated energy level with the increase in the energy level registered in the ETVM during the test period.
16. The method according to claim 15, wherein the source parameters are set automatically by executing an application software in the personal computer.
17. The method according to claim 15, wherein the source parameter is a voltage level.
18. The method according to claim 15, wherein the source parameter is a current level.
19. The method according to claim 15, wherein the source parameter is a power factor.
20. The method according to claim 15, wherein the input commands by the personal computer includes the total number of test conditions, the voltage

value, the current value and the power factor for each phase under each test condition.
21.The method according to claim 15, wherein the measured energy level includes kWh, kVarh (both lag and lead), kVAh energies for both forward and reverse directions.
22, The method according to claim 15, wherein the personal computer is connected to the automatic static power source through a communication system.
23. The method according to claim 22, wherein the communication device is a wired communication system.
24. The method according to claim 22, wherein the communication device is a wireless communication system.
25. The method according to claim 15, wherein the personal computer is connected to the ETVM through a communication system.
26, The method according to claim 25, wherein the communication system is a wired communication system.

27. The method according to claim 25, wherein the communication system is a wireless communication system.
28- The method according to claim 15, wherein the automatic static power source is connected to the ETVM through voltage and current cables