CN208172093U - A kind of distribution transformer power loss synchronous measuring apparatus - Google Patents
A kind of distribution transformer power loss synchronous measuring apparatus Download PDFInfo
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- CN208172093U CN208172093U CN201820824519.5U CN201820824519U CN208172093U CN 208172093 U CN208172093 U CN 208172093U CN 201820824519 U CN201820824519 U CN 201820824519U CN 208172093 U CN208172093 U CN 208172093U
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- electric power
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Abstract
The utility model relates to the technical fields of power distribution station ancillary equipment, more specifically, it is related to a kind of distribution transformer power loss synchronous measuring apparatus, the first acquisition module including central processing module, for acquiring transformer input side electric power signal, the second acquisition module and power module for acquiring transformer outlet side electric power signal, the output end of central processing module are connected with data memory module and display module.The utility model acquires transformer input side electric power signal by the first acquisition module and obtains transformer input side performance number, transformer outlet side electric power signal, which is acquired, by the second acquisition module obtains transformer outlet side performance number, the electric power signal of input side and outlet side reaches central processing module by GPS wireless transport module, can reach while acquiring the purpose of transformer two sides electric power signal；It is handled by electric power signal of the central processing module to the transformer two sides of acquisition, the power difference for obtaining transformer two sides is the power loss of transformer.
Description
Technical field
The utility model relates to the technical fields of power distribution station ancillary equipment, more particularly, to a kind of distribution transformer function
Synchronous measuring apparatus is lost in rate.
Background technique
Transformer is mainly to be made of iron core and winding two parts.The test method of present transformer efficiency loss is usual
It is that the no-load loss measured by no-load test and short-circuit test measure the sum of short circuit loss to measure.No-load loss approximation with
Iron loss is equal, and short circuit loss can be approximately the copper loss of winding.Currently, transformer efficiency loss test largely take from
Line test, there are many deficiencies for this method：Off-line test influences the continuity of power supply, makes troubles to tester, wastes
Human and material resources resource；The power loss loss of transformer is lost with the power loss in actual motion under the off-line state of test
May be inconsistent, cause measuring accuracy not high；And this method is not suitable for that the transformer of operation of power networks has been put into, and is only applicable in
In the transformer for not entering operation of power networks.
In recent years, there is the on-line testing mode of transformer noload losses and short circuit loss, make up to a certain extent
The shortcoming of off-line test, but this test method, need to take certain calculation method by the change in operation of power networks
The no-load loss and short circuit loss of depressor separate, by no-load loss and short circuit loss carry out Approximate Equivalent handle for iron loss with
Copper loss, this processing method makes transformer efficiency loss test precision not high to a certain extent, and calculation method is more complex,
Derivation process is comparatively laborious.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and it is synchronous to provide a kind of distribution transformer power loss
Measuring device, while the electric power signal of transformer two sides is acquired, the power difference of transformer two sides is required transformer
Power loss, simple and easy to do, measuring accuracy is high.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of distribution transformer power loss synchronous measuring apparatus is provided, including central processing module, for acquiring transformation
First acquisition module of device input side electric power signal, the second acquisition module for acquiring transformer outlet side electric power signal and
Power module, first acquisition module, the second acquisition module are connect by GPS wireless transport module with central processing module,
The power module is connect with central processing module, and it is steady that battery charging is connected between the power module and central processing module
Die block；The output end of the central processing module is connected with data memory module and display module；The electric power signal packet
Include voltage analog signal and current-mode analog quantity signal.
The distribution transformer power loss synchronous measuring apparatus of the utility model acquires transformer by the first acquisition module
Input side voltage analog signal and current-mode analog quantity signal obtain transformer input side performance number, pass through the second acquisition module
Acquisition transformer outlet side voltage analog signal obtains transformer outlet side performance number, the electric power signal of input side and outlet side
Central processing module is reached by GPS wireless transport module, can reach while acquiring the purpose of transformer two sides electric power signal；It is logical
It crosses central processing module to handle the electric power signal of the transformer two sides of acquisition, obtains the power difference of transformer two sides i.e.
For the power loss of transformer.The utility model is simple and easy to do, and measuring accuracy is high, provides just for the test job of testing crew
Benefit.
Further, the central processing module includes being connect with the first acquisition module by GPS wireless transport module
First ADC analog-to-digital conversion module and the 2nd ADC analog-to-digital conversion being connect with the second acquisition module by GPS wireless transport module
Module.First ADC analog-to-digital conversion module, the 2nd ADC analog-to-digital conversion module turn the analog signals of the transformer two sides of acquisition
Turn to analysis and storage that digital signal is convenient for data；Central processing module uses ARM Cortex-M3 master devices, main negative
The co-ordination of the modules of duty control data collection system, for the sampling precision and sample rate for ensureing data collection system
Necessary condition is provided.
Further, the first ADC analog-to-digital conversion module, the 2nd ADC analog-to-digital conversion module are that 7606ADC modulus turns
Parallel operation, the model NEO-7N UBLOX of the GPS wireless transport module.It is wirelessly transferred using NEO-7N UBLOX model GPS
Module guarantees the electric power signal simultaneity of collected transformer two sides.
Further, first acquisition module includes first voltage analogue collection module and the first current-mode analog quantity
Acquisition module, the first voltage analogue collection module, the first current-mode analog quantity acquisition module are all connected to the first ADC modulus
The input terminal of conversion module.
Further, second acquisition module includes second voltage analogue collection module and the second current-mode analog quantity
Acquisition module, the second voltage analogue collection module, the second current-mode analog quantity acquisition module are all connected to the 2nd ADC modulus
The input terminal of conversion module.
Further, the battery charging and voltage stabilizing module is MP1482 power supply chip, and the central processing module uses
STM32F4 central data processor, the memory module use AT24C data storage, and the display module is that display is thrown in touching
Screen.The friendliness of man-machine interface is improved using touch screen.
Further, the output end of the central processing module is connected with RS485 communication module, sets in the measuring device
There is the RS485 data conversion storage interface be connected with RS485 communication module.
Compared with prior art, the utility model has the beneficial effects that：
（1）The distribution transformer power loss synchronous measuring apparatus of the utility model is acquired by the first acquisition module and is become
Depressor input side voltage analog signal and current-mode analog quantity signal obtain transformer input side performance number, pass through the second acquisition
Module acquisition transformer outlet side voltage analog signal obtains transformer outlet side performance number, the electric power of input side and outlet side
Signal reaches central processing module by GPS wireless transport module, can reach while acquiring the mesh of transformer two sides electric power signal
's；It is handled by electric power signal of the central processing module to the transformer two sides of acquisition, obtains the power of transformer two sides
Difference is the power loss of transformer.
（2）The distribution transformer power loss synchronous measuring apparatus of the utility model, simple and easy to do, measuring accuracy is high, is
The test job of testing crew provides convenience.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the distribution transformer power loss synchronous measuring apparatus of the utility model.
Specific embodiment
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；It is practical at this
In novel description, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore retouch in attached drawing
The term for stating positional relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment 1
It is as shown in Figure 1 the first embodiment of the distribution transformer power loss synchronous measuring apparatus of the utility model, packet
Include central processing module, the first acquisition module for acquiring transformer input side electric power signal, for acquiring transformer output
The second acquisition module and power module of side electric power signal, the first acquisition module, the second acquisition module are wirelessly transferred by GPS
Module is connect with central processing module, and power module is connect with central processing module, between power module and central processing module
It is connected with battery charging and voltage stabilizing module；The output end of central processing module is connected with data memory module and display module；Electricity
Force signal includes voltage analog signal and current-mode analog quantity signal.
The present embodiment acquires transformer input side voltage analog signal and electricity when implementing, through the first acquisition module
Flow field simulation amount signal obtains transformer input side performance number, acquires transformer outlet side voltage analog by the second acquisition module
Signal obtains transformer outlet side performance number, during the electric power signal of input side and outlet side is reached by GPS wireless transport module
Processing module is entreated, can reach while acquiring the purpose of transformer two sides electric power signal；Change by central processing module to acquisition
The electric power signal of depressor two sides is handled, and the power difference for obtaining transformer two sides is the power loss of transformer.
Specifically, central processing module includes the first ADC being connect with the first acquisition module by GPS wireless transport module
Analog-to-digital conversion module and the 2nd ADC analog-to-digital conversion module being connect with the second acquisition module by GPS wireless transport module；The
One acquisition module includes first voltage analogue collection module and the first current-mode analog quantity acquisition module, first voltage analog quantity
Acquisition module, the first current-mode analog quantity acquisition module are all connected to the input terminal of the first ADC analog-to-digital conversion module.First ADC mould
Number conversion module, the 2nd ADC analog-to-digital conversion module convert digital signal just for the analog signals of the transformer two sides of acquisition
In the analysis and storage of data；Central processing module uses ARM Cortex-M3 master devices, is mainly responsible for control data acquisition
The co-ordination of the modules of system, to ensure that sampling precision and the sample rate of data collection system provide necessary condition.
In the present embodiment, the first ADC analog-to-digital conversion module, the 2nd ADC analog-to-digital conversion module are that 7606ADC modulus turns
Parallel operation, the model NEO-7N UBLOX of GPS wireless transport module；Battery charging and voltage stabilizing module is MP1482 power supply chip, in
Processing module is entreated to use STM32F4 central data processor, memory module uses AT24C data storage, and display module is touching
Display screen is thrown, the friendliness of man-machine interface is improved；The output end of central processing module is connected with RS485 communication module, surveys
Amount device is equipped with the RS485 data conversion storage interface be connected with RS485 communication module.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (7)
1. a kind of distribution transformer power loss synchronous measuring apparatus, which is characterized in that including central processing module, for acquiring
First acquisition module of transformer input side electric power signal, the second acquisition module for acquiring transformer outlet side electric power signal
And power module, first acquisition module, the second acquisition module are connected by GPS wireless transport module and central processing module
It connects, the power module is connect with central processing module, is connected with battery between the power module and central processing module and is filled
Electric Voltage stabilizing module；The output end of the central processing module is connected with data memory module and display module；The electric power letter
Number include voltage analog signal and current-mode analog quantity signal.
2. distribution transformer power loss synchronous measuring apparatus according to claim 1, which is characterized in that the centre
Reason module includes the first ADC analog-to-digital conversion module being connect with the first acquisition module by GPS wireless transport module and with the
The 2nd ADC analog-to-digital conversion module that two acquisition modules are connected by GPS wireless transport module.
3. distribution transformer power loss synchronous measuring apparatus according to claim 2, which is characterized in that described first
ADC analog-to-digital conversion module, the 2nd ADC analog-to-digital conversion module are 7606ADC analog-digital converter, the GPS wireless transport module
Model NEO-7N UBLOX.
4. distribution transformer power loss synchronous measuring apparatus according to claim 1, which is characterized in that described first adopts
Collecting module includes first voltage analogue collection module and the first current-mode analog quantity acquisition module, the first voltage analog quantity
Acquisition module, the first current-mode analog quantity acquisition module are all connected to the input terminal of the first ADC analog-to-digital conversion module.
5. distribution transformer power loss synchronous measuring apparatus according to claim 1, which is characterized in that described second adopts
Collecting module includes second voltage analogue collection module and the second current-mode analog quantity acquisition module, the second voltage analog quantity
Acquisition module, the second current-mode analog quantity acquisition module are all connected to the input terminal of the 2nd ADC analog-to-digital conversion module.
6. distribution transformer power loss synchronous measuring apparatus according to any one of claims 1 to 4, which is characterized in that
The battery charging and voltage stabilizing module is MP1482 power supply chip, and the central processing module is handled using STM32F4 central data
Device, the memory module use AT24C data storage, and the display module is that display screen is thrown in touching.
7. distribution transformer power loss synchronous measuring apparatus according to claim 6, which is characterized in that the centre
The output end of reason module is connected with RS485 communication module, and the measuring device is equipped with to be connected with RS485 communication module
RS485 data conversion storage interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820824519.5U CN208172093U (en) | 2018-05-30 | 2018-05-30 | A kind of distribution transformer power loss synchronous measuring apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820824519.5U CN208172093U (en) | 2018-05-30 | 2018-05-30 | A kind of distribution transformer power loss synchronous measuring apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761195A (en) * | 2018-05-30 | 2018-11-06 | 广东电网有限责任公司 | A kind of distribution transformer power attenuation synchronous measuring apparatus |
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2018
- 2018-05-30 CN CN201820824519.5U patent/CN208172093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761195A (en) * | 2018-05-30 | 2018-11-06 | 广东电网有限责任公司 | A kind of distribution transformer power attenuation synchronous measuring apparatus |
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