AUTOMATIC TAMPER DATA MEMORY ROLLOVER VERIFICATION SYSTEM AND METHOD FOR 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 roll over of tamper data in memory at 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 meters may be manipulated so as to make them under-register or even run backwards, effectively allowing usage of power without paying for it. There are several forms of tampering that are effectively done on inductive meters. The magnets above 0.5 tesla can saturate the magnetic circuits, causing the loss of registration. Some industry traditionally inserts rectifiers in light-bulb sockets to induce DC loads. The grounded, disconnected or reversed terminals also cause misregistration. Some industries historically alternated the inductive motors and capacitive loads (such as arc-smelters) to alternately run the meters forward then backward.
[0009] The neutral lines connecting the energy meter with the load and with the AC power supply may be disconnected and the load and the AC power supply main is directly connected to the load to supply the electrical power to the load directly thereby by passing the energy meter so that the actual consumption is not registered and hence a loss of revenue to the electric supply and distribution company is generated.

[0010] Sometimes the cover of the meters is tampered to induce the malfunctioning of the meters to reduce the power consumption levels. The terminal cover is removed to interfere with the connections or to apply a bridge or to remove the case to interfere with the working of the meter. The internal pressure switches may be fit inside the case to detect the cover tampering event.
[0011] Sometimes the neutral supply to the meter is interrupted. A sensor may be fit to detect the voltage loss or alternatively to detect the imbalances in the live and neutral circuits or to detect the bridging.
[0012] A black box may be used to run the meter backwards. At present the electronic meters are provided with a circuit to indicate the reverse running of the energy meters.
[0013] In some cases the energy meter is completely by passed or tapped into the cutout or the wiring from a location which is far ahead of the meter location.
[0014] The above mentioned meter tamper events are detected by a respective device and method. The detected tamper events are recorded in a tamper data memory for future reference and evidence. The tamper detection function and the logging of the detected tamper events in a memory is a basic feature of the Electronic Trivector Meter (ETVM), Normally the tamper data memory may store more than 100 tamper records. In some cases the tamper data memory may also store more than 300 tamper records. Thus the size of memory block for storing the tamper data is fixed in each ETVM. When the entire memory block in an ETVM is filled and a new tamper data is generated, the roll over of the tamper data memory is performed and the oldest tamper

detection data stored in the tamper data memory is replaced by latest or the new tamper detection data using a first in first out (FIFO) technique. When the memory rollover does not happen as intended, it may overwrite or corrupt other valuable data that are already stored in the tamper data memory. Hence there is a need to verify the rollover of tamper data in the tamper data memory. This tamper data recycling should be checked periodically and is a part of software validation process.
[0015] Since our method of ETVM Firmware testing is a Black-box testing, the verification of tamper data rollover will take minimum lOhours for an ETVM containing 100 tamper records. The testing time will vary based on the number of tamper records provided and the time taken for the meter to record tamper. At present the tamper data rollover in a tamper data memory is tested using the different types of tamper conditions that are created by setting the source parameters manually. The source parameters include abnormal conditions of voltage, current and power factor. The manual setting of the source parameters with respect to different types of tamper conditions manually is a monotonous job and requires more time.
[0016] Hence there is a need to provide an automatic testing method and system to verify the roll over of the tamper data in a tamper memory automatically.
[0017] 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, mutiple metering functions and calibration of the meter

through software adjustment process. However the implementation of such functions may be expensive and complicated.
[0018] 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.
[0019] Thus there is a need to perform the verification of the roll over of the tamper data in a tamper data memory in an ETVM automatically, accurately, easily, efficiently and quickly.
C) OBJECTS OF THE INVENTION
[0020] The primary object of the invention is to provide a testing method and system to verify the tamper data memory roll over in an ETVM automatically and quickly.
[0021] Another object of the present invention is to provide a testing method and system to verify the tamper data memory roll over in an ETVM automatically and accurately thereby reducing the generation of human error.
[0022] Yet another object of the present invention is to provide a testing method and system to verify the tamper data memory roll over in an ETVM automatically and accurately without requiring a manual intervention thereby saving valuable man-hours.

[0023] Yet another object of the present invention is to provide a testing method and system to verify the tamper data memory roll over in an ETVM automatically and accurately during the non office hours and to enable to verify the test results during the office hours.
[0024] Yet another object of the present invention is to provide a testing method and system to verify the tamper data memory roll over in an ETVM automatically and accurately by verifying all the possible test conditions within the available testing time.
[0025] 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 tamper data memory roll over in an ETVM automatically and accurately so that the device may test any conditions in the ETVM.
[0026] Yet another object of the present invention is to provide a testing method and system to verify the tamper data memory roll over in an ETVM automatically and accurately and to enable the user to programme the test duration dynamically and easily.
[0027] 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
[0028] The above mentioned shortcomings, disadvantages and problems are addressed herein and which will be understood by reading and studying the following specification.
[0029] The various embodiments of the present invention provides a method and system to verify the tamper data memory roll over in an ETVM automatically, quickly, easily and efficiently.
0030] 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 tamper data memory roll over 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.
[0031] Once the input is given, the test can be started. The conditions necessary for creating tamper in ETVM are set in static source based on the input by commands from the personal computer. Then the ETVM is run under the set test condition for the tamper persistent time. After the elapse of the tamper persistent time, the normal operating conditions are set in the ETVM to recover the tamper data. When the ETVM recovers from tamper condition, the tamper details are written into the meter

memory. An application software is executed in the personal computer to automatically set the source to another test condition based on the selected type of tamper event. The verification process continued until the required number of tamper records are logged by the ETVM meter in data memory.
[0032] According to another embodiment of the present invention, a method is provided to verify the tamper data memory roll over in an ETVM automatically, quickly, easily and efficiently. According to verification method of the present invention, 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 tamper conditions. The set conditions are input into the ETVM
[0033] When the predefined tamper test conditions are set in, the ETVM is set to run under the selected tamper condition for a fixed test duration. Afterwards the normal operating conditions are set in the ETVM to recover the tamper data. When the ETVM recovers from the tamper condition, the tamper details are written into the meter memory. An application software is executed in the personal computer to automatically set the source to another test condition based on the selected type of tamper event. The verification process continued until the required number of tamper records are logged by the ETVM meter in data memory.

[0034] Thus the various embodiments of the present invention provides a method and system to verify the roll over of tamper data in a tamper data memory 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 a report form to enable the user to understand the test report easily efficiently and quickly. The method and the device enables to verify the roll over of tamper data memory 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 thereby saving the valuable man-hours. Since the roll over of the tamper data memory 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 and saving the precious man-hours. The test method and device of the present invention also helps to test all the possible conditions within the available testing time.
[0035] The automatic verification method and system for the roll over of the tamper data memory 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.

[0036] 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
[0037] 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:
[0038] FIGURE. 1 illustrates the functional block diagram a testing system for verifying the roll over of the tamper data memory automatically in an ETVM according to one embodiment of the present invention.
[0039] FIGURE. 2 illustrates a flow chart explaining the method for verifying the the roll over of the tamper data memory automatically in an ETVM according to one embodiment of the present invention.
[0040] 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
[0041] The various embodiments of the present invention provides a method and system to verify the roll over of the tamper data memory in an ETVM automatically, quickly, easily and efficiently.
[0042] 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 roll over of the tamper data memory 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 tamper test conditions. Based on the selected type of tamper conditions, the source parameters are set to abnormal conditions so that ETVM will log the tamper record in tamper data memory. The condition will persist for predefined duration specified by the user. After the elapse of the tamper persistent time, another different tamper condition will be set in the automatic power source by the application software and the process is continued. The test operation is repeated untill the required number of tamper records are stored by the energy meter.
[0043] The test conditions and the source parameters are input into the ETVM from the automatic power source to start a test operation. The ETVM connected to the source is run under a selected tamper condition and allowed to accumulate tamper data for a fixed test duration. The collected tamper data is stored in a tamper data

memory. 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 and required number of tamper data are written into the tamper data memory. The results may be exported to generate a test report.
[0044] According to another embodiment of the present invention, a method is provided to verify the roll over of the tamper data memory in an ETVM automatically, quickly, easily and efficiently. According to the embodiment an automated power source is connected to an ETVM through voltage and current cables,. 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 tamper conditions. The set tamper conditions are input into the ETVM
[0045] When the predefined tamper conditions are set in, the ETVM that is connected to the automatic power source is set to run under the selected tamper condition for a fixed test duration. Afterwards the normal operating conditions are set in the ETVM to recover the tamper data. When ETVM recovers from tamper condition, the tamper details are written into the meter memory. An application software is executed in the personal computer to automatically set the source to another test condition based on the selected type of tamper event, the source parameters are changed based on the selected tamper condition. The verification process continued until the required

number of tamper records are logged by the ETVM in tamper data memory. The results may be exported to generate a test report.
[0046] According to one embodiment of the present invention, an automatic static power source is coupled to an Electronic Trivector Meter (ETVM) to verify the roll over of the tamper data memory in the ETVM automatically. The automatic power source is connected to the electronic trivector meter to input the test conditions. According to one embodiment of the present invention, the automatic power source is connected to the ETVM through voltage and current cables.
[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 an optical communication ports through which an RS232 communication interfaces is inserted to communicatively couple the personal computer with the static power source.
[0048] 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 input by

the user into the Personal Computer includes the total number of test conditions, the type of tamper conditions selected in the ETVM and the tamper persistent time. The different types of tamper conditions selected in the ETVM includes Voltage failure condition. Voltage Unbalanced condition, current failure condition, current Unbalance condition, Current reversal condition. Low power factor/current reversal condition, low Voltage condition, high Voltage condtion, low Current condition, high Current condition, etc. The Tamper persistent time is the Minimum time required for ETVM to record the abnormal condition as tamper. The tamper persistent time is set in an ETVM based on the input customer specification.
[0049] Voltages, currents and power factor given by the automatic power source are input into the ETVM based on the input given to the personal computer to start a test operation.
[0050]When the predefined tamper conditions are set in, the ETVM that is connected to the automatic power source is set to run under the selected tamper condition for a fixed test duration. Afterwards the normal operating conditions are set in the ETVM to recover the tamper data. When ETVM recovers from tamper condition, the tamper details are written into the meter memory. An application software is executed in the personal computer to automatically set the source to another test condition based on the selected type of tamper event. The verification process continued until the required number of tamper records are logged by the ETVM meter in data memory. The results may be exported to generate a test report.

[0051] The FIG. 1 shows the functional block diagram a testing system for verifying the tamper data roll over in the tamper data memory automatically in an ETVM according to one embodiment of the present invention. With respect to FIG.l, an automatic static power source is coupled to an Electronic Trivector Meter (ETVM) to verify the roll over of the tamper data in the tamper data memory in the ETVM automatically. The automatic power source is connected to the electronic trivector meter to input the test conditions and the test parameters. In one embodiment of the present invention, the automatic power source is connected to the ETVM through voltage and current cables.
[0052] 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 RS232 communication interface to communicatively couple the personal computer with the static power source .
[0053] 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 source parameters are set to abnormal conditions based on the selected tamper condition so that the ETVM detect and store the tamper data in the tamper data memory.
[0054] The input by the user into the Personal Computer includes the total number of test conditions, the type of tamper conditions selected in the ETVM and the tamper persistent time. The different types of tamper conditions selected in the ETVM includes Voltage failure condition, Voltage Unbalanced condition, current failure condition, current Unbalance condition, Current reversal condition, Low power factor/current reversal condition, low Voltage condition, high Voltage condition, low Current condition, high Current condition, etc. The Tamper persistent time is the Minimum time required for ETVM to record the abnormal condition as tamper. The tamper persistent time is set in an ETVM based on the input customer specification.
[0055] Voltages, currents and power factor given by the automatic power source into the ETVM based on the input given to the personal computer to start a test operation.
[0056]When the predefined tamper conditions are set in, the ETVM that is connected to the automatic power source is set to run under the selected tamper condition for a fixed test duration. Afterwards the normal operating conditions are set in the ETVM to recover the tamper data. When ETVM recovers from tamper condition, the tamper details are written into the meter memory. An application software is executed in the personal computer to automatically set the source to another test condition based on the selected type of tamper event. The verification process continued until the

required number of tamper records are logged by the ETVM meter in data memory. The results may be exported to generate a test report.
[0057] The FIG. 2 illustrates a flow chart explaining the method for verifying the roll over of the tamper data memory automatically in an ETVM according to one embodiment of the present invention. The method is provided to verify the roll over of the tamper data in the memory 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.
[0058] 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 tamper 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 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 source parameters are set to abnormal conditions based on the selected tamper condition so that the ETVM detect and store the tamper data in the tamper data memory.

[0059] The input by the user into the Personal Computer includes the total number of test conditions, the type of tamper conditions selected in the ETVM and the tamper persistent time. The different types of tamper conditions selected in the ETVM includes Voltage failure condition. Voltage Unbalanced condition, current failure condition, current Unbalance condition. Current reversal condition, Low power factor/current reversal condition, low Voltage condition, high Voltage condition, low Current condition, high Current condition, etc. The Tamper persistent time is the Minimum time required for ETVM to record the abnormal condition as tamper. The tamper persistent time is set in an ETVM based on the input customer specification.
[0060] Voltages, currents and power factor given by the automatic power source are input into the ETVM based on the input given to the personal computer to start a test operation.
[0061] When the predefined tamper conditions are set in, the ETVM that is connected to the automatic power source is set to run under the selected tamper condition for a fixed test duration. Afterwards the normal operating conditions are set in the ETVM to recover the tamper data. When ETVM recovers from tamper condition, the tamper details are written into the meter memory. An application software is executed in the personal computer to automatically set the source to another test condition based on the selected type of tamper event. The verification process continued until the required number of tamper records are logged by the ETVM meter in data memory. The results may be exported to generate a test report.

[0062] Thus the various embodiments of the present invention provides a method and system to verify the roll over of the tamper data in the tamper data memory 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 a report form to enable the user to understand the test report easily efficiently and quickly. The method and the device enables to verify the roll over of the tamper data memory 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 hours. Since the tamper data memory roll over 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 verifying the roll over operation in the memory. The test method and device of the present invention also helps to test all the possible conditions within the available testing time.
[0063] The automatic verification method and device for the roll over of the tamper data in the tamper data memory 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
[0064] Thus the various embodiments of the present invention provides a method and system to verify the roll over of the tamper data in the tamper data memory 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 a report form to enable the user to understand the test report easily efficiently and quickly. The method and the device enables to verify the roll over of the tamper data memory 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 tamper data memory roll over 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 and saving the precious man hours in verifying the roll over operation in the tamper data memory. The test method and device of the present invention also helps to test all the possible conditions within the available testing time.
[0065] The automatic verification method and device for the roll over of the tamper data in the tamper data memory 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.
[0066] 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.
[0067] 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 saul to fall there between.

CLAIMS
WHAT IS CLAIMED IS:
1. An automatic verification system for roll over of tamper data in a tamper data memory in an Electronic Trivector Meter (ETVM), the system comprising:
An automatic static power source connected to the ETVM through voltage and
current cables 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 automatic power source set a source parameter based on the
selected tamper condition for a given test period so that the ETVM is run
under the selected tamper condition for a given 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 tamper condition.
7. The system according to claim 1, wherein the source parameter is changed based on the type of the tamper condition.
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 8, wherein the communication device is a RS 232 communication interface.
12. The system according to claim 1, wherein the automatic static power source is connected to the ETVM through voltage and current cables.

13. An automatic verification method for roll over of tamper data in tamper data memory 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 automatic power source set a source parameter based on the selected tamper condition for a given test period so that the ETVM is run under the selected tamper condition for a given test period.
14. The method according to claim 13, wherein the source parameters are set automatically by executing an application software in the personal computer.
15. The method according to claim 13, wherein the source parameter is a voltage level.
16. The method according to claim 13, wherein the source parameter is a current level.

17. The method according to claim 13, wherein the source parameter is a power factor.
18, The method according to claim 13, 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.
19. The method according to claim 13, wherein the source parameter is changed based on the type of the tamper condition.
20. The method according to claim 13, wherein the personal computer is connected to the automatic static power source through a communication system.
21. The method according to claim 20, wherein the communication device is a wired communication system.
22. The method according to claim 20, wherein the communication device is a wireless communication system.
23. The method according to claim 13, wherein the personal computer is connected to the ETVM through voltage and current cables..

24. The method according to claim 13, wherein the personal computer is
connected to the ETVM through a communication system..
25. The method according to claim 24, wherein the communication device is a
wired communication system,
26. The method according to claim 24, wherein the communication device is a
wireless communication system.
27. The method according to claim 24, wherein the communication device is a
RS 232 wireless communication interface.
28. The method according to claim 13, wherein the automatic static power source
is connected to the ETVM through voltage and current cables