CN208636391U - A kind of device of high pressure equipotential measuring transformer loss - Google Patents
A kind of device of high pressure equipotential measuring transformer loss Download PDFInfo
- Publication number
- CN208636391U CN208636391U CN201821341542.5U CN201821341542U CN208636391U CN 208636391 U CN208636391 U CN 208636391U CN 201821341542 U CN201821341542 U CN 201821341542U CN 208636391 U CN208636391 U CN 208636391U
- Authority
- CN
- China
- Prior art keywords
- transformer
- winding
- electric power
- voltage
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model relates to a kind of devices of high pressure equipotential measuring transformer loss, belong to technical field of electrical measurement.Technical solution is: (6) one end Jie of Hi-pot test line is tested on power supply (7), in indirectly at the winding high voltage end of voltage transformer (1), the other end passes through current transformer (2) and connects in subject transformer (8)；The low-pressure end of voltage transformer is grounded, measurement winding one end of voltage transformer (1) is connected with Hi-pot test line (6), the measurement winding of voltage transformer accesses electric power measurement device (3), the measurement winding of current transformer accesses electric power measurement device, and the shell of electric power measurement device is connected with Hi-pot test line (6)；DATA REASONING terminal (5) is connect by wireless communication module one (4) with electric power measurement device.The utility model effectively prevents influence of the high voltage electric field to measuring system, realizes the high-voltage end measurement of transformer loss, reduces measuring device cost, reduce operation safety risk.
Description
Technical field
The utility model relates to a kind of devices of high pressure equipotential measuring transformer loss, belong to Electrical Measurement Technology neck
Domain.
Background technique
The zero load of 110kV and the above high-power transformer and the in-site measurement of load loss, have increasingly obtained electric system
With the attention of enterprise.The test item of no-load transformer and load loss is included in by the anti-accident technical measures of State Grid Corporation of China
Live transformer commissioning test must do project.Currently, the zero load of high-power transformer and the test of load loss, general to use
High voltage, high current are converted into being able to use low-voltage, the low current of apparatus measures by voltage transformer and current transformer, real
The zero load of existing high-power transformer and the indirect measurement of load loss.Voltage applied in transformer loss test is relatively high, root
According to the voltage rating of transformer low voltage winding, 10kV, 35kV or 66kV have been respectively reached.Therefore, used voltage transformer
There is higher dielectric level with current transformer, bear higher voltage.
Since voltage levels, the voltage transformer of high measurement accuracy, current transformer cost are higher, especially electric current is mutual
Sensor application range in power supply company, districts and cities is relatively narrow, generally seldom configures in power supply company, districts and cities, thus causes large size
The difficulty that transformer loss on-the-spot test is promoted in power supply company, districts and cities.Currently, high-power transformer loss on-the-spot test mainly by
It saves DianKeYuan to undertake, needs to build complicated power-supply system at the scene, and high using high-pressure and high-precision voltage transformer and high pressure
Precision current transformer accesses dedicated electrical parameter measuring instrument, low-pressure end is taken to measure, since test equipment is to be directly accessed
The low pressure measurement winding of voltage transformer and current transformer is easy high pressure introducing test equipment, cause if insulation is impaired
The damage of test equipment or even serious it can jeopardize personal safety.
104181429 B of CN discloses a kind of three-winding transformer loss on-line measurement system.The system is applied to survey
The loss for measuring, calculating running transformer, the voltage transformer and current transformer by being connected to three side of transformer measure three
Winding transformer voltage and current obtains the electric current of three winding three-phase and the fundametal compoment of voltage by Fast Fourier Transform (FFT)
With each harmonic component, show that three-winding transformer is lost according to loss computing method.The measuring system transformer loss is to pass through
Complicated theoretical calculation obtains, can not substitute the result really measured；It is complicated to measure wiring, needs to configure a fairly large number of phase
Answer the voltage transformer and current transformer of voltage class.
202563014 U of CN discloses a kind of transformer loss measurement console.Pass through the opening and closing of different contactors, group
Unloaded load loss test circuit, inducting-voltage proof test circuit are built, and allows testing crew to understand and learn transformer test with this
Basic operation and equipment basic principle.The console applies 380V alternating voltage, and contactor voltage is 660V, can not carry out
The experiment work of the transformer of 110kV and the above high voltage large capcity；Measuring circuit intermediate link is more, not can guarantee in high electricity
Measuring accuracy requirement under pressure, high current；Voltage, electric current are directly accessed the measuring instrumentss of console, belong to low-pressure end measurement.
Utility model content
The utility model aim is to provide a kind of device of high pressure equipotential measuring transformer loss, by using in high pressure
The voltage transformer of end design measurement winding realizes that the high-voltage end measurement of voltage, measurement data wireless transmission reduce measurement dress
It is set to this, operation safety risk is reduced, efficiently solves the above problem present in background technique.
The technical solution of the utility model is: a kind of device of high pressure equipotential measuring transformer loss, mutual comprising voltage
Sensor, current transformer, electric power measurement device, wireless communication module one, data display screen, Hi-pot test line, test electricity
Source and subject transformer, the voltage transformer include by the matched winding of iron core and measurement winding, the Hi-pot test line
One end Jie is tested on power supply, in indirectly at the winding high voltage end of voltage transformer, the other end passes through current transformer and connects in quilt
It tries on transformer；The winding low-pressure end of voltage transformer is grounded, and the measurement winding output end access electrical power of voltage transformer is surveyed
Device is measured, the one of output end of measurement winding of voltage transformer is connected with Hi-pot test line in tie point one simultaneously, electric current
The measurement winding of mutual inductor accesses electric power measurement device, and the shell of electric power measurement device is metal material, shell and high pressure
P-wire is connected in tie point two；Data display screen is connect by wireless communication module one with electric power measurement device；Electric work
Rate measuring device includes electric power meter, DC power supply, charger and wireless communication module two, voltage transformer and current transformer
Output end connect respectively with electric power meter, electric power meter is connected with charger, point source module respectively with charger and channel radio
It interrogates module two to connect, wireless communication module two is wirelessly connect with wireless communication module one；The tie point one is located at
It tests between power supply and current transformer, tie point two is located between current transformer and subject transformer.
The electric power meter is commercially available digital electric power table；The wireless communication module one and wireless communication module second is that
Commercially available wireless connection module, is mutually matched, and emits and receive wireless signal.
The winding of the voltage transformer is made of two section windings in series, is winding and following winding above respectively, above
It can be dismantled between winding and following winding.
The course of work: the DC power supply of electric power measurement device, the electricity of voltage transformer and current transformer acquisition are opened
Pressure and current data enter the electric power meter of electric power measurement device, electric power meter measurement data by wireless communication module two with
Wireless communication module one communicates wirelessly, and final measurement is shown by long-range data display screen.Test electricity
Source starts to apply and increase test voltage, and data display screen continuously displays measurement result.
The beneficial effects of the utility model are: measuring voltage transformer, the low pressure punching electric current of winding by high-voltage end band
Mutual inductor and electric power measurement device, and pass through reasonable equipotential link, high voltage electric field is effectively prevented to measuring system
Influence, realize transformer loss high-voltage end measurement, reduce measuring device cost, reduce operation safety risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of utility model device；
In figure: voltage transformer 1, current transformer 2, electric power measurement device 3, wireless communication module 1, data are shown
Screen 5, Hi-pot test line 6, test power supply 7, subject transformer 8, tie point 1, tie point 2 10, electric power meter 31, direct current
Power supply 32, wireless communication module 2 33, charger 34.
Specific embodiment
Below in conjunction with attached drawing, by embodiment, the utility model is described in further detail.
A kind of device of high pressure equipotential measuring transformer loss, includes voltage transformer 1, current transformer 2, electrical power
Measuring device 3, wireless communication module 1, data display screen 5, Hi-pot test line 6, test power supply 7 and subject transformer 8, institute
Stating voltage transformer 1 includes by the matched winding of iron core and measurement winding, and the 6 one end Jie of Hi-pot test line tests power supply
On 7, in indirectly at the winding high voltage end of voltage transformer 1, the other end passes through current transformer 2 and connects on subject transformer 8；Electricity
The winding low-pressure end ground connection of mutual inductor 1 is pressed, the measurement winding output end of voltage transformer 1 accesses electric power measurement device 3, voltage
The one of output end of measurement winding of mutual inductor 1 is connected with Hi-pot test line 6 in tie point 1 simultaneously, current transformer 2
It measures winding and accesses electric power measurement device 3, the shell of electric power measurement device 3 is metal material, shell and Hi-pot test line 6
It is connected in tie point 2 10；Data display screen 5 is wirelessly connected by wireless communication module 1 and electric power measurement device 3；Electricity
Power-measuring device 3 includes electric power meter 31, DC power supply 32, charger 34 and wireless communication module 2 33, voltage transformer 1
It is connect respectively with electric power meter 31 with the output end of current transformer 2, electric power meter 31 and charger 34 connect, DC power supply 32
It is connect respectively with charger 34 and wireless communication module 2 33, wireless communication module 2 33 and wireless communication module 1 pass through nothing
Line mode connects；The tie point 1 is located between test power supply 7 and current transformer 2, and tie point 2 10 is located at Current Mutual Inductance
Between device 2 and subject transformer 8.
The electric power meter 31 is commercially available digital electric power table；The wireless communication module 1 and wireless communication module
2 33 are commercially available wireless connection module, are mutually matched, and emit and receive wireless signal.
The winding of the voltage transformer 1 is made of two section windings in series, is winding and following winding above respectively, above
It can be dismantled between winding and following winding.
The course of work: opening the DC power supply 32 of electric power measurement device, and voltage transformer 1 and current transformer 2 acquire
Voltage and current data enter the electric power meter 31 of electric power measurement device, 31 measurement data of electric power meter passes through wireless telecommunications
Module 2 33 is communicated wirelessly with wireless communication module 1, and final measurement is carried out by long-range data display screen 5
Display.Test power supply starts to apply and increase test voltage, and data display screen continuously displays measurement result.
Voltage transformer 1 is measurement winding in the voltage transformer of high-voltage end, and voltage transformer is by two section windings in series groups
At, be winding and following winding above respectively, above can be dismantled between winding and following winding；When only using winding above,
Dismantle winding above and following winding, above winding low-pressure end ground connection, 10kV voltage can be measured；It connects when using two sections
When, above winding and following windings in series, below winding low-pressure end ground connection, 66kV voltage, such voltage transformer can be measured
It is combined by two section windings, meets the measurement request of all kinds of transformers at present；Current transformer 2 is low-voltage high-precision punching
Current transformer, due to current transformer and Hi-pot test line equipotential, without that can be met using high-tension current inductor
Insulating requirements；Electric power measurement device 3 is the electric power measurement device with wireless communication function, by electric power meter 31, direct current
Power supply 32, charger 34 and 2 33 4 part of wireless communication module composition: the measurement of electric power meter 31 realization voltage, current parameters
And data processing；Wireless communication module 1 and wireless communication module 2 33 realize data communication, and adjustment measurement parameter, control are surveyed
Amount output；Data display screen 5 realizes the analysis of measurement data and the control to measurement process.
The utility model measures voltage transformer, low pressure punching current transformer and the electric work of winding by high-voltage end band
Rate measuring device, and pass through reasonable equipotential link, influence of the high voltage electric field to measuring system is effectively prevented, change is realized
The high-voltage end measurement of depressor loss.
Voltage transformer that present patent application is related to, current transformer, wireless communication module, data display screen, electric work
Element used in rate table, DC power supply, charger etc. is common technology contents known in this field, those of ordinary skill in the art
It can buy according to requiring or voluntarily assemble on the market.
In embodiment, wireless communication module is using the JN516X wireless communication module of grace intelligence Pu production, it can be achieved that low-power consumption
Wireless communication and data connection.IEEE 802.15.4 standard is suitable for low rate wireless personal domain network (LRWPAN),
2400 MHz frequency ranges support the wireless data rates for being up to 250 kbps.
Electric power meter uses the APN1211 alternating current-direct current power measurement module of Guangzhou Ai Te accurate measurement Co., Ltd production,
It is capable of measuring the parameters such as voltage, electric current, power, the frequency of alternating current and direct current load.Charger uses common phone charger.
Claims (2)
1. a kind of device of high pressure equipotential measuring transformer loss, it is characterised in that: mutual comprising voltage transformer (1), electric current
Sensor (2), wireless communication module one (4), data display screen (5), Hi-pot test line (6), is surveyed electric power measurement device (3)
Power supply (7) and subject transformer (8) are tried, the voltage transformer (1) includes by the matched winding of iron core and measurement winding, institute
State (6) one end Jie of Hi-pot test line test power supply (7) on, in indirectly in the winding high voltage end of voltage transformer (1), the other end
It is connect in subject transformer (8) across current transformer (2)；The winding low-pressure end of voltage transformer (1) is grounded, voltage transformer
(1) output end of measurement winding accesses electric power measurement device (3), one of them is defeated for the measurement winding of voltage transformer (1)
Outlet is connected with Hi-pot test line (6) in tie point one (9), the measurement winding access electric power measurement dress of current transformer (2)
It sets (3), the shell of electric power measurement device (3) is metal material, and shell is with Hi-pot test line (6) in tie point two (10) phase
Even；Data display screen (5) is connect by wireless communication module one (4) with electric power measurement device (3)；Electric power measurement device
(3) comprising electric power meter (31), DC power supply (32), charger (34) and wireless communication module two (33), voltage transformer (1)
It is connect respectively with electric power meter (31) with the output end of current transformer (2), electric power meter (31) and charger (34) connection, directly
Galvanic electricity source (32) is connect with charger (34) and wireless communication module two (33) respectively, wireless communication module two (33) and channel radio
News module one (4) wirelessly connect；The tie point one (9) be located at test power supply (7) and current transformer (2) it
Between, tie point two (10) is located between current transformer (2) and subject transformer (8).
2. a kind of device of high pressure equipotential measuring transformer loss according to claim 1, it is characterised in that: the electricity
The winding of pressure mutual inductor (1) is made of two section windings in series, is winding and following winding above respectively, above winding and it is following around
It is removable between group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821341542.5U CN208636391U (en) | 2018-08-20 | 2018-08-20 | A kind of device of high pressure equipotential measuring transformer loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821341542.5U CN208636391U (en) | 2018-08-20 | 2018-08-20 | A kind of device of high pressure equipotential measuring transformer loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208636391U true CN208636391U (en) | 2019-03-22 |
Family
ID=65741975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821341542.5U Expired - Fee Related CN208636391U (en) | 2018-08-20 | 2018-08-20 | A kind of device of high pressure equipotential measuring transformer loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208636391U (en) |
-
2018
- 2018-08-20 CN CN201821341542.5U patent/CN208636391U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cataliotti et al. | Oil-filled MV/LV power-transformer behavior in narrow-band power-line communication systems | |
| CN102305893B (en) | Method and device for checking power-factor angle of high voltage line of intelligent substation on site | |
| CN201319064Y (en) | Test circuit for field accuracy detection of high-voltage current transformer | |
| CN102608472B (en) | Power grid measurement and monitoring system and methods thereof | |
| CN104749408A (en) | Capacitor voltage transformer applied to harmonic measurement | |
| CN103336188A (en) | Current boosting apparatus suitable for GIS equipment | |
| CN103884933A (en) | Temperature rise test method for large transformer | |
| CN102338844B (en) | Method for performing on-site partial discharge test on ultrahigh voltage converter transformer | |
| CN202075405U (en) | Onsite overall detection system of three-phase electric energy metering system of distribution network | |
| CN101893694A (en) | Error testing device of voltage transformator | |
| CN202330691U (en) | Field calibrating equipment for voltage transformer | |
| CN208636391U (en) | A kind of device of high pressure equipotential measuring transformer loss | |
| CN104808022A (en) | Temperature rise test connection method for three-side combined operation of three-phase three-winding transformer | |
| CN202886585U (en) | On-line test device for voltage/current transformer | |
| CN102866378B (en) | Voltage or current transformer on-line test device and voltage or current transformer on-line test method | |
| CN204789750U (en) | High voltage energy meter | |
| CN104076226A (en) | Device and method for measuring energy efficiency of transformer based on voltage difference value and current difference value | |
| CN109375047B (en) | System and method for testing double-end asynchronous polarity of high-voltage transmission line | |
| CN204359883U (en) | A kind of transformer multifunctional tester | |
| CN203084124U (en) | Multi-parameter batch test system of transformer | |
| CN111289938B (en) | Current transformer error calibration equipment | |
| CN108983028A (en) | A kind of device and method of high pressure equipotential measuring transformer loss | |
| CN204441079U (en) | A kind of novel measurement power taking Current Transformer | |
| CN104111438A (en) | Primary large-current loop monitoring method in current transformer error test | |
| CN103439616A (en) | Transformation-loss precision-measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20190820 |