KR101204755B1 - Transformer loss measurement system, evaluation method using the same and recording medium thereof - Google Patents

Abstract

The present invention relates to a transformer loss measuring system and a method for estimating a transformer synthesis system using the same, and calculates the error and phase error of a voltage transformer, a current transformer, and a power meter possessed by an industry and a national standard organization. The present invention relates to a method for acquiring a synthesis system error by calculating a synthesis error and a synthesis phase error of a transformer loss measuring system using the error error and the phase error. To this end, the voltage transformer measuring apparatus 100 for measuring the non-error and phase error of the industrial voltage transformer 130 used in the industry; A current transformer measuring device 200 for measuring a non-error and a phase error of an industrial current transformer 230 used in an industrial industry; A power meter measuring device 300 for measuring an average power error of the industrial power meter 330 used in the industry; And control means (500) for calculating the synthesized error and the synthesized phase error based on the non-error, the phase error, and the average power error, and calculating the synthesized system error using the calculated synthesized error and the phase error. A transformer loss measuring system is disclosed.

Description

Transformer loss measurement system, transformer synthesis system error evaluation method, and recording medium {Transformer loss measurement system, evaluation method using the same and recording medium etc}

The present invention relates to a transformer loss measuring system and a method for estimating a transformer synthesis system using the same, and more specifically, calculates the error and phase error of a voltage transformer, a current transformer, and a power meter held by industrial and national standards organizations. In addition, the present invention relates to an evaluation of a synthesis system error by calculating a synthesis error and a synthesis phase error of a transformer loss measuring system using the calculated error and phase error.

Recently, the heavy electric machine industry that produces and exports transformers has a transformer power loss measuring system, and uses this to measure no load loss and load loss of the transformer. In order to activate the export of transformers and guarantee the quality of products, the retrospective of the standard from the national standard of transformer loss measuring system is required.

However, due to the lack of a mobile standard for evaluating the transformer loss measuring system and the establishment of a transformer loss measuring technique, the national standard cannot be retroactively applied to the loss measuring system. The heavy electric equipment industry has been working with the National Standards Institute of Canada (NRC) and Haefley, Switzerland, which have the technology to evaluate the transformer loss measurement system. .

Therefore, in the technical field to which the present invention belongs, it was required to develop a synthesis system error evaluation technique of a transformer loss measuring system possessed by the heavy electric machine industry in order to solve the difficulties of the heavy electric machine industry.

Therefore, the present invention was created to solve the problems described above, it is possible to retrospect the national standard of the transformer loss measuring system, the transformer loss measuring system and error estimation method using the same that can guarantee the quality of the transformer produced The purpose is to provide.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

An object of the present invention described above, the voltage transformer measuring device 100 for measuring the non-error and phase error of the industrial voltage transformer 130 used in the industry; A current transformer measuring device 200 for measuring a non-error and a phase error of an industrial current transformer 230 used in an industrial industry; A power meter measuring device 300 for measuring an average power error of the industrial power meter 330 used in the industry; And control means (500) for calculating the synthesized error and the synthesized phase error based on the non-error, the phase error, and the average power error, and calculating the synthesized system error using the calculated synthesized error and the phase error. It can be achieved by providing a transformer loss measuring system, characterized in that.

In addition, the voltage transformer measuring device 100 includes a high voltage generation source 110 for generating a high voltage; A moving voltage transformer 120 in which the high voltage generator 110 and the primary side are connected in parallel; A voltage comparator 140 connected in series with the secondary side of the moving voltage transformer 120; And an industrial voltage transformer 130 in which the high voltage source 110 and the primary side are connected in parallel, and the voltage comparator 140 and the secondary side are connected in series.

In addition, the voltage comparator 140 is characterized in that the voltage comparator of the national standards organization.

In addition, the burden 150 is connected in parallel with the secondary side of the industrial voltage transformer 130; characterized in that it further comprises.

In addition, the current transformer measuring device 200 includes a large current generator 210 for generating a large current; An industrial current transformer 230 in which a large current generator 210 and a primary side are connected; A mobile current transformer 220 in which the primary side and the large current generator 210 and the primary side of the industrial current transformer 230 are connected; And a current comparator 240 connected to the secondary side of the mobile current transformer 220 and the secondary side of the industrial current transformer 230.

In addition, the burden 250 is connected in series with the secondary side of the industrial voltage transformer 130; characterized in that it further comprises.

In addition, the power meter measuring apparatus 300 includes a power source 310 for outputting a voltage and a current for measuring an average power error of the industrial power meter 330; A mobile power meter 320 that receives the voltage and current of the power source 310 and outputs it to the industrial power meter 330 again; And an industrial power meter 330 that receives the voltage and current of the mobile power meter 320.

In addition, the measuring device 400 for measuring the non-error and phase error of the mobile voltage transformer 120, which is held by the national standard organization, and the non-error and phase error of the mobile current transformer 220, which is held by the national standard organization; It characterized in that it further comprises.

On the other hand, the object of the present invention is another category, in the method for evaluating the synthesis system error using the transformer loss measuring system 10, the voltage transformer measuring apparatus 100 of the industrial voltage transformer 130 used in the industry Measuring the rain and phase error, the current transformer measuring device 200 measures the rain and phase error of the industrial current transformer 230 used in the industry, the power meter measuring device 300 is used in the industry Measuring an average power error of the industrial power meter 330, and calculating, by the control unit 500, a non-error and a phase error of the industrial power meter 330 based on the average power error (S110); Calculating, by the control means 500, the synthesized error and the synthesized phase error of the transformer loss measuring system 10 based on the input error and the phase error (S120); And the control means 500 calculating a synthesis system error of the transformer loss measuring system 10 based on the synthesized error and the synthesized phase error (S130). By providing a method for evaluating system errors.

In addition, before the step S110, the measurement device 400 is a non-error and phase error of the mobile voltage transformer 120, which is held by the national standard organization, and the non-error of the mobile current transformer 220, which is held by the national standard organization. And measuring a phase error (S100).

In addition, the step of calibrating the transformer loss measuring system 10 based on the synthesis system error (S140); characterized in that it further comprises.

In addition, the error and phase error of the industrial voltage transformer 130 is characterized in that it is calculated based on the following [Equation].

[Mathematical Expression]

α _x = α _r + α _s

β _x = β _r + β _s

Where α _{x is the} error of the industrial voltage transformer, β _x is the phase error of the industrial voltage transformer, α _{r is the} error of the mobile voltage transformer measured by the voltage comparator, and β _r is the value of the mobile voltage transformer measured by the voltage comparator. Phase error, α _s : Non-error of mobile voltage transformer measured by national standard organization, β _s : Phase error of mobile voltage transformer measured by national standard organization)

In addition, the error and phase error of the industrial current transformer 230 is characterized in that it is calculated based on the following [Equation].

[Mathematical Expression]

α _x = α _r + α _s

β _x = β _r + β _s

(Where, α _{x is the} error of the industry current transformer, β _x is the phase error of the industry current transformer, α _{r is the} error of the mobile current transformer measured in the current comparator, and β _{r is the} current of the mobile current transformer measured in the current comparator) Phase error, α _s : Non-error of mobile current transformer measured by national standard organization, β _s : Phase error of mobile current transformer measured by national standard organization)

In addition, the synthesis error and the synthesis phase error is characterized in that the calculation based on the following equation.

[Mathematical Expression]

(Where, α ₁ : the error of the mobile voltage transformer, b ₁ : the phase error of the mobile voltage transformer, α ₂ : the error of the mobile current transformer, b ₂ : the phase error of the mobile current transformer, α ₃ : the power meter of the mobile voltage transformer) the industrial current transformer: ratio error, b _3: phase error of the portable power meter, α _4: ratio error of industry voltage transformer, b _4: non-error of the industrial current transformer, b _5: phase error of the industry voltage transformer, α ₅ Phase error, α ₆ : industry power meter error, b ₆ : industry power meter phase error, A: synthetic error, B: synthetic phase error)

In addition, the synthesis system error is characterized in that the calculation based on the following equation.

Where C: synthetic system error, A: synthetic error, B: synthetic phase error, and PF: power factor

In addition, the error and phase error of the industrial power meter 330 is characterized in that the calculation based on the following equation.

[Mathematical Expression]

:평균전력 오차, PF:역률, α:산업체 파워미터의 비오차, b:산업체 파워미터의 위상오차)
(here,

: Average power error, PF: power factor, α: industry power meter error, b: industry power meter phase error)

On the other hand, an object of the present invention can be achieved in another category by providing a computer readable recording medium having recorded thereon a program for executing a method for evaluating a composite system error using a transformer loss measuring system.

According to the present invention as described above there is an effect possible to retrospect the national standard of the transformer loss measuring system.

And, according to the present invention, it is possible to guarantee the quality of the transformer produced by the traceability of the national standard.

The following drawings, which are attached to this specification, illustrate one preferred embodiment of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 and 2 is a configuration diagram for explaining the configuration of the transformer loss measuring system according to the present invention,
3 is a configuration diagram for measuring the non-error and phase error of the industrial voltage transformer according to the present invention,
4 is a configuration diagram for measuring the non-error and phase error of the industrial current transformer according to the present invention,
5 is a configuration diagram for measuring the average power error of the industrial power meter according to the invention,
6 is a flowchart sequentially showing a procedure for evaluating a synthesis system error using a transformer loss measuring system according to the present invention.

Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention. In addition, the embodiment described below does not unduly limit the content of the present invention described in the claims, and the entire structure described in this embodiment is not necessarily essential as the solution means of the present invention.

<Configuration of transformer loss measuring system>

1 and 2 is a configuration diagram for explaining the configuration of the transformer loss measuring system according to the present invention, Figure 3 is a configuration diagram for measuring the non-error and phase error of the industrial voltage transformer according to the invention, Figure 4 Is a configuration diagram for measuring the non-error and phase error of the industrial current transformer according to the present invention, Figure 5 is a configuration diagram for measuring the average power error of the industrial power meter according to the present invention.

As shown in Figures 1 and 2, the transformer loss measuring system according to the present invention is approximately voltage transformer measuring device 100, current transformer measuring device 200, power meter measuring device 300, and control means 500 It is preferable to comprise). Hereinafter, the configuration of a transformer loss measuring system according to the present invention will be described with reference to FIGS. 1 to 5.

The voltage transformer measuring device 100 according to the present invention is a device for measuring the error and the phase error of the industrial voltage transformer 130 used in the industry. Accordingly, the voltage transformer measuring apparatus 100 is composed of an approximately high voltage generator 110, a movable voltage transformer 120, an industrial voltage transformer 130, a voltage comparator 140, and a load 150, and thus the industrial voltage transformer 130. The error and phase error of) can be measured.

The high voltage generator 110, which is one component of the above-described voltage transformer measuring apparatus 100, is a device for generating a high voltage as shown in FIG. 3, the primary side of the movable voltage transformer 120 and the industrial voltage transformer 130. It is wired in parallel with (121,131), respectively. And any one intersection of each device connected in parallel is grounded (160).

In addition, the mobile voltage transformer 120 is a voltage transformer owned by the Korea Research Institute of Standards and Science, a national standard organization, and the primary side 121 is parallel to the primary side 131 of the high voltage generator 110 and the industrial voltage transformer 130. The secondary side 122 is connected in series with the voltage comparator 140. At this time, it is connected to the S terminal 141 of the voltage comparator 140.

In addition, the industrial voltage transformer 130 is a voltage transformer used in an industrial field, and the primary side 131 is connected to the primary side 121 of the high voltage generator 110 and the movable voltage transformer 121, and the secondary side ( 132 is connected to the X terminal 142 of the voltage comparator 140. At this time, the secondary side 132 is connected in parallel with the burden (150).

In addition, the voltage comparator 140 is a voltage comparator held by the Korea Research Institute of Standards and Science, a national standard organization. The secondary side 122 of the mobile voltage transformer 120 and the secondary side 132 of the industrial voltage transformer 130 are described above. ) In series with each other. The voltage comparator 140 having the above-described configuration compares the voltage of the secondary side 122 of the mobile voltage comparator with the voltage of the secondary side 132 of the industrial voltage comparator to calculate the error and phase error of the mobile voltage comparator 120. do.

In addition, the burden 150 is connected in parallel with the secondary side 132 of the industrial voltage transformer 130, and the same burden value should be used when measuring the mobile voltage transformer 120 in each of the national standards organization and the industry. This load 150 is a load connected between the secondary terminals of the instrument transformer, and is expressed by the apparent power consumed by the load under the rated secondary current or the rated secondary voltage of the rated frequency and the power factor of the load. Hereinafter, unless otherwise specified, the term burden 150 is used in the same sense.

The current transformer measuring device 200 according to the present invention is a device for measuring the non-error and phase error of the industrial current transformer 230 used in the industry. Accordingly, the current transformer measuring device 200 is composed of a large current generator 210, a mobile current transformer 220, an industrial current transformer 230, a current comparator 240, and a load 250, and the industrial current transformer 230. The error and phase error of) can be measured.

As shown in FIG. 4, the large current generator 210, which is a component of the current transformer measuring device 200, is a device for generating a large current as the primary side of the mobile current transformer 220 and the industrial current transformer 230. And are connected in series with (221, 231), respectively. One intersection of each device connected in series is grounded 260.

In addition, the mobile current transformer 220 is a current transformer owned by the Korea Research Institute of Standards and Science, a national standard organization, and the primary side 221 is in series with the primary side 231 of the large current generator 210 and the industrial current transformer 230. The secondary side 222 is connected to the current comparator 240. At this time, it is connected to the K terminal 243 and the I terminal 244 of the current comparator 240, the I terminal 244 is grounded (260).

In addition, the industrial current transformer 230 is a current transformer used in an industrial field, and the primary side 231 is connected to the primary side 221 of the large current generator 210 and the mobile current transformer 221, and the secondary side ( 232 is connected to the K terminal 241 and I terminal 242 of the current comparator 240. In this case, the I terminal 242 is grounded 260, and the load 250 is connected in series with the K terminal 241.

In addition, the current comparator 240 is a current comparator possessed by the Korea Research Institute of Standards and Science, a national standard organization, and the secondary side 222 and the K terminal 243 and the I terminal 244 of the mobile current transformer 220 described above. Are connected to each other, and the secondary side 232 and the K terminal 241 and the I terminal 242 of the industrial current transformer 230 are connected to each other. The current comparator 240 having the above-described configuration compares the current of the secondary side 222 of the mobile current comparator with the current of the secondary side 232 of the industrial current comparator to calculate the error and phase error of the mobile current comparator 220. do.

The burden 150 is connected in series with the secondary side 232 and the K terminal 241 of the industrial current transformer, and the definition of the burden 150 is as described above. However, the same burden value should be used when measuring the current transformer 220 for movement in each of the national standards organization and industry.

The power meter measuring apparatus 300 according to the present invention includes a power source 310, a mobile power meter 320, and an industrial power meter 330. At this time, the power source 310 is a device possessed by the Korea Institute of Standards and Science, a national standard organization, is a source for supplying voltage and current to measure the average power error of the industrial power meter 330.

The mobile power meter 320 is also a device possessed by the Korea Research Institute of Standards and Science, which is first measured by the Korea Research Institute of Standards and Science before moving to an industrial site to measure the industry power meter (330). The mobile power meter 320 uses an energy standard (Energy STD) that is held by the Korea Research Institute of Standards and Science and maintains national standards.

The industrial power meter 330 is an object to be evaluated. In order to evaluate the industrial power meter 330, a voltage and a current are supplied from the above-described power source 310, and the voltage and the current are output to the mobile power meter 320. At this time, two terminals of the power source 310 for supplying a voltage are connected in parallel with the two terminals of the mobile power meter 320 and the industrial power meter 330. In addition, two terminals of the power source 310 for supplying current are connected in series with two terminals of the mobile power meter 320 and the industrial power meter 330.

The measuring device 400 according to the present invention is a device for measuring the non-error and phase error of the mobile voltage transformer 120 and the current transformer 220, which is held by the Korea Institute of Standards and Science, a national standard organization. The moving voltage transformer 120 and the moving current transformer 220 are first moved by the Korea Research Institute of Standards and Science before measuring the error and phase error of the industrial voltage transformer 130 and the industrial current transformer 230 by moving to an industrial site. And phase error are measured. However, the configuration of the measuring device of the moving voltage transformer 120 and the moving current transformer 220 is the same as the configuration of the voltage transformer measuring device 100 and the current transformer measuring device 200. However, instead of the voltage and current transformers possessed by the industry, the mobile voltage and current transformers are measured.

The control means 500 according to the present invention is an error and phase of the industrial voltage transformer 130, the industrial current transformer 230, the mobile voltage transformer 120, and the mobile current transformer 220 measured in advance by the national standards organization The combined error and the phase error of the error and the mobile power meter 320 and the industrial power meter 330 are used to calculate the combined error and the synthesized phase error.

In this case, the error and phase errors of the moving voltage transformer 120, the moving current transformer 220, and the moving power meter 320 are measured by the Korea Research Institute of Standards and Science before field calibration. The error and phase error of the industrial power meter 330 are calculated using the average power error of the industrial power meter 330 in the equation.

Meanwhile, the control unit 500 calculates a synthesis system error by using the calculated synthesis error and the synthesized phase error. The control means 500 having the above-described functions may be any calculation device capable of calculating a computer or a notebook. However, it will be apparent to those skilled in the art that the present invention is not limited thereto but may be embodied in the present invention as long as it can be simply configured using a microprocessor or the like.

And, the equations necessary for the above calculation, such as synthesis error, synthesis phase error, and synthesis system error used in the control means 500 will be described in the method invention described below.

<Composition system error evaluation method>

6 is a flowchart sequentially showing a procedure for evaluating a synthesis system error using a transformer loss measuring system according to the present invention. An embodiment of the synthesis system error estimation method using the transformer loss measuring system according to the present invention which can be performed by the transformer loss measuring system having the above-described configuration is shown in FIG. 6.

Hereinafter, a method for evaluating a synthesis system error using a transformer loss measuring system according to the present invention will be described with reference to FIG. 6. This step is to perform approximately steps S100 to S140.

First, the step of measuring the non-error and phase error of the mobile voltage transformer 120 and the mobile current transformer 220 in the National Institute of Standards and Science, a national standard organization (S100). However, the step S100 is the same even after measuring the non-error and phase error of the moving voltage transformer 120 and the moving current transformer 220 after performing step S110. This is a natural result because the measurement of the non-error and the phase error before performing the step S120 to calculate the synthesis error and the synthesis phase error.

Next, the rain and phase errors of the industrial voltage transformer 130 used in the industry are measured, and the rain and phase errors of the industrial current transformer 230 used in the industry are measured and used in the industry. The average power error of the industrial power meter 330 is measured to calculate the non-error and phase error of the industrial power meter 330 (S110).

At this time, the error and phase error of the industrial voltage transformer 130 is calculated based on Equation 1 below.

Where α _{x is the} error of the industrial voltage transformer, β _x is the phase error of the industrial voltage transformer, α _{r is the} error of the mobile voltage transformer measured by the voltage comparator, and β _r is the value of the mobile voltage transformer measured by the voltage comparator. Phase error, α _s : Non-error of mobile voltage transformer measured by national standard organization, β _s : Phase error of mobile voltage transformer measured by national standard organization)

In addition, the error and phase error of the industrial current transformer 230 is calculated based on Equation 2 below.

(Where, α _{x is the} error of the industry current transformer, β _x is the phase error of the industry current transformer, α _{r is the} error of the mobile current transformer measured by the current comparator, and β _r is the Phase error, α _s : Non-error of mobile current transformer measured by national standard organization, β _s : Phase error of mobile current transformer measured by national standard organization)

In addition, the average power error of the industrial power meter 330 is held by the Korea Institute of Standards and Science, a national standard organization, and is measured using an energy standard maintaining a national standard. That is, the energy standard means a mobile power meter 320 in the present invention.

In this case, when the average power error is measured, the rain and phase errors of the industrial power meter 330 may be calculated based on Equation 3 below.

:평균전력 오차, PF:역률, α:산업체 파워미터의 비오차, b:산업체 파워미터의 위상오차)
(here,

: Average power error, PF: power factor, α: industry power meter error, b: industry power meter phase error)

Next, the step of calculating the synthesized error and the synthesized phase error of the transformer loss measuring system 10 based on the calculated error and phase error based on Equation 4 below (S120).

(Where, α ₁ : the error of the mobile voltage transformer, b ₁ : the phase error of the mobile voltage transformer, α ₂ : the error of the mobile current transformer, b ₂ : the phase error of the mobile current transformer, α ₃ : the power meter of the mobile voltage transformer) the industrial current transformer: ratio error, b _3: phase error of the portable power meter, α _4: ratio error of industry voltage transformer, b _4: non-error of the industrial current transformer, b _5: phase error of the industry voltage transformer, α ₅ Phase error, α ₆ : industry power meter error, b ₆ : industry power meter phase error, A: synthetic error, B: synthetic phase error)

Next, a step of calculating the synthesis system error of the transformer loss measuring system 10 based on the synthesis error and the synthesis phase error is performed based on Equation 5 below (S130).

Where C: synthetic system error, A: synthetic error, B: synthetic phase error, and PF: power factor

Finally, the step of calibrating the transformer loss measuring system 10 based on the calculated synthesis system error is performed (S140).

<Recording medium>

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (for example, transmission over the Internet). Include. In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

As mentioned above, although demonstrated with reference to one Embodiment of this invention, this invention is not limited to this, A various deformation | transformation and an application are possible. In other words, those skilled in the art can easily understand that many variations are possible without departing from the gist of the present invention.

10: transformer loss measuring system
100: voltage transformer measuring device
110: high voltage source
120: moving voltage transformer
121: primary side
122: secondary side
130: industrial voltage transformer
131: primary side
132: secondary side
140: voltage comparator
141: S terminal
142: X terminal
150: burden
160: ground
200: current transformer measuring device
210: large current generating source
220: mobile current transformer
221: primary side
222: secondary side
230: industrial current transformer
231: primary side
232: secondary side
240: current comparator
241,243: Terminal K
242,244: Terminal I
250: burden
260 ground
300: power meter measuring device
310: power source
320: mobile power meter
330: industrial power meter
500 control means

Claims (17)

A voltage transformer measuring device 100 for measuring a non-error and a phase error of an industrial voltage transformer 130 used in an industry;
A current transformer measuring device 200 for measuring a non-error and a phase error of an industrial current transformer 230 used in an industrial industry;
A power meter measuring device 300 for measuring an average power error of the industrial power meter 330 used in the industry; And
Control means (500) for calculating a synthesized error and a synthesized phase error based on the error, the phase error, and the average power error, and calculating a synthesized system error using the calculated synthesized error and the phase error (500) );
The power meter measuring device 300,
The power source 310 outputs a voltage and a current for measuring an average power error of the industrial power meter 330, and receives the voltage and current of the power source 310 and returns them to the industrial power meter 330. Transformer power measuring system characterized in that it comprises a mobile power meter (320) for outputting and the industrial power meter (330) for receiving the voltage and current of the mobile power meter (320).
The method of claim 1,
The voltage transformer measuring device 100,
A high voltage generator 110 generating a high voltage;
A moving voltage transformer 120 in which the high voltage source 110 and the primary side are connected in parallel;
A voltage comparator 140 connected in series with the secondary side of the movable voltage transformer 120; And
And the industrial voltage transformer (130) connected in parallel with the high voltage generator (110) and the primary side, and connected in series with the voltage comparator (140).
The method of claim 2,
The voltage comparator 140 is a transformer loss measuring system, characterized in that the voltage comparator of the national standards organization.
The method of claim 2,
And a load (150) connected in parallel with the secondary side of the industrial voltage transformer (130).
The method of claim 1,
The current transformer measuring device 200,
A large current generator 210 for generating a large current;
The industrial current transformer 230 in which the large current generator 210 and the primary side are connected;
A mobile current transformer 220 in which a primary side of the industrial current transformer 230 and the large current generator 210 and the primary side are connected; And
And a current comparator (240) connected to the secondary side of the moving current transformer (220) and the secondary side of the industrial current transformer (230).
The method of claim 5, wherein
And a load (250) connected in series with the secondary side of the industrial voltage transformer (130).
delete The method of claim 1,
Measurement device 400 for measuring the non-error and phase error of the mobile voltage transformer 120, which is held by the national standard organization and the current transformer 220, which is held by the national standard organization; Transformer loss measuring system comprising a.
In the method for evaluating the synthesis system error using the transformer loss measuring system 10 according to claim 1,
The voltage transformer measuring device 100 measures the error and phase error of the industrial voltage transformer 130 used in the industry, and the current transformer measuring device 200 uses the ratio of the industrial current transformer 230 used in the industry. Error and phase error, the power meter measuring device 300 measures the average power error of the industrial power meter 330 used in the industry, and the control means 500 is based on the average power error Calculating a rain error and a phase error of the industrial power meter 330 (S110);
Calculating, by the control means, a combined error and a synthesized phase error of the transformer loss measuring system 10 based on the input error and the phase error (S120); And
And calculating, by the control means 500, a synthesis system error of the transformer loss measuring system 10 based on the synthesis error and the synthesis phase error (S130). Synthesis system error evaluation method using
The method of claim 9,
Before step S110,
Non-error and phase error of the mobile voltage transformer 120, which the measuring device 400 holds in the national standard organization, and
Measuring a non-error and phase error of the mobile current transformer 220 is held by a national standard organization (S100); Synthesis system error evaluation method using a transformer loss measuring system, characterized in that it further comprises.
The method of claim 9,
Compensating the transformer loss measuring system (10) based on the synthesis system error (S140); Synthesis system error evaluation method using a transformer loss measuring system, characterized in that it further comprises.
The method of claim 9,
The error ratio and the phase error of the industrial voltage transformer 130 is calculated based on the following Equation [10].
[Mathematical Expression]
α _x = α _r + α _s
β _x = β _r + β _s
Where α _{x is the} error of the industrial voltage transformer, β _x is the phase error of the industrial voltage transformer, α _{r is the} error of the mobile voltage transformer measured by the voltage comparator, and β _r is the value of the mobile voltage transformer measured by the voltage comparator. Phase error, α _s : Non-error of mobile voltage transformer measured by national standard organization, β _s : Phase error of mobile voltage transformer measured by national standard organization)
The method of claim 9,
Non-error and phase error of the industrial current transformer 230 is calculated on the basis of the following [Equation] synthesized system error estimation method using a transformer loss measurement system.
[Mathematical Expression]
α _x = α _r + α _s
β _x = β _r + β _s
(Where, α _{x is the} error of the industry current transformer, β _x is the phase error of the industry current transformer, α _{r is the} error of the mobile current transformer measured in the current comparator, and β _{r is the} current of the mobile current transformer measured in the current comparator) Phase error, α _s : Non-error of mobile current transformer measured by national standard organization, β _s : Phase error of mobile current transformer measured by national standard organization)
The method of claim 9,
The synthesis error and the synthesis phase error is calculated on the basis of the following [Equation] synthesized system error evaluation method using a transformer loss measurement system.
[Mathematical Expression]

(Where, α ₁ : the error of the mobile voltage transformer, b ₁ : the phase error of the mobile voltage transformer, α ₂ : the error of the mobile current transformer, b ₂ : the phase error of the mobile current transformer, α ₃ : the power meter of the mobile voltage transformer) the industrial current transformer: ratio error, b _3: phase error of the portable power meter, α _4: ratio error of industry voltage transformer, b _4: non-error of the industrial current transformer, b _5: phase error of the industry voltage transformer, α ₅ Phase error, α ₆ : industry power meter error, b ₆ : industry power meter phase error, A: synthetic error, B: synthetic phase error)
The method of claim 9,
The synthesis system error evaluation method using the transformer loss measurement system, characterized in that the calculation based on the following [Equation].

Where C: synthetic system error, A: synthetic error, B: synthetic phase error, and PF: power factor
The method of claim 9,
The error ratio and phase error of the industrial power meter 330 is calculated based on the following equation, the synthesis system error evaluation method using a transformer loss measurement system.
[Mathematical Expression]

(here,

: Average power error, PF: power factor, α: industry power meter error, b: industry power meter phase error)
A computer-readable recording medium having recorded thereon a program for executing a method for evaluating a composite system error using the transformer loss measuring system according to any one of claims 9 to 16.

Images