CN107064600A - A kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface - Google Patents
A kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface Download PDFInfo
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- CN107064600A CN107064600A CN201710137042.3A CN201710137042A CN107064600A CN 107064600 A CN107064600 A CN 107064600A CN 201710137042 A CN201710137042 A CN 201710137042A CN 107064600 A CN107064600 A CN 107064600A
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- square piece
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- 238000005259 measurement Methods 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims 1
- 229920002647 polyamide Polymers 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 25
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 4
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010068052 Mosaicism Diseases 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- General Physics & Mathematics (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface, the voltage measuring apparatus includes metal sensor square piece, gas insulated combined electrical equipment, resistance, cable, manograph and voltage display；Wherein, gas insulated combined electrical equipment includes high-pressure conductor and outer tank body with cylindrical structure；Metal sensor square piece is the part cut down from the side surface of outer tank body, and before measurement voltage, is pasted the incision in outer tank body side surface；One end connection metal sensor square piece of resistance, other end connection outer tank body；The terminating resistor of cable one, another termination manograph；Voltage display connects manograph, for magnitude of voltage of the high-pressure conductor to outer tank body to be calculated and be shown.Therefore, the voltage measuring apparatus provided using the present invention, can be obtained magnitude of voltage of the gas insulated combined electrical equipment inner high voltage conductor to outer tank body, realizes the purpose of the running status of monitoring ultra-high-tension power transmission line in real time by measuring resistive voltage.
Description
Technical field
The present invention relates to field of power, more particularly to a kind of GIS buses electricity set up in low-pressure tank body side surface
Pressure measuring device.
Background technology
Safety power transmission, reliable transmission of electricity, economic electric transmission are present main trends, and under the promotion of this main trend, it is defeated
Power technology is continued to develop, and the scale of power network constantly expands, the voltage class of power system constantly raises, and especially extra-high voltage is handed over
Direct current mixes the shaping and innovation of field of power transmission technology.
At present, China successfully have developed 1000kV exchanges and ± 800kV direct current hybrid power systems, promote China
Enter the new stage of UHV transmission.But, while the new stage of UHV transmission is entered, also to real-time monitoring electric power
The running status of system and the maintenance of power equipment add difficulty.So, how to be monitored in real time when transmission line of electricity is run
Its state is just particularly important.The state letter of transmission line of electricity can be extracted exactly wherein in higher and higher voltage class
Breath is even more the most important thing.
In the prior art, the voltage of ultra-high-tension power transmission line is monitored often through voltage transformer, to detect power train in real time
The running status of system.However, the voltage transformer using transformer as essence exists many in the voltage of monitoring ultra-high-tension power transmission line
Problem, such as traditional electromagnetic type and capacitance type potential transformer are due to the reason of interpolation iron core, and secondary side in use can not
Short circuit, occur magnetic hysteresis and magnetic saturation in iron core, and then result in that measurement low, the static and dynamic true scope of the linearity is small, wink
The problems such as state error characteristics are undesirable；In substation isolating-switch operating process, electromagnetic type and capacitance type mutual inductor easily draw
Send out failure.There is the limitation of crystal half-wave voltage, light stability sex chromosome mosaicism, the stabilization of optics connection in electronic mutual inductor
Property, the skew of optical transmission loss and intrinsic standoff ratio the problems such as, there is significant deficiency in terms of a sensing arrangement and electromagnetic shielding,
It is easily caused serious measurement error.Other voltage transformer has that transformer build is big, involves great expense, safeguard and cost of overhaul use
The common faults such as high, measurement is dumb, big, the insulating requirements height of loss.Therefore, it is badly in need of a kind of brand-new device, is abandoning mutual induction of voltage
On the basis of device, magnitude of voltage during ultra-high-tension power transmission line operation can be obtained, and then monitors the operation of ultra-high-tension power transmission line in real time
State.
The content of the invention
It is an object of the invention to provide a kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface, it is
On the basis of conventional voltage transformer is abandoned, by simple voltage measuring apparatus, measure in gas insulated combined electrical equipment
High-pressure conductor to the magnitude of voltage of outer tank body, and then magnitude of voltage when obtaining ultra-high-tension power transmission line operation realizes that monitoring is high in real time
The purpose of the running status of pressure transmission line.
To achieve the above object, the invention provides following scheme：
A kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface, the GIS bus voltage measurements device
Including：Metal sensor square piece, gas insulated combined electrical equipment, resistance, cable, manograph and voltage display；The gas is exhausted
Edge combined electrical apparatus includes high-pressure conductor and outer tank body with cylindrical structure；The outer tank body is the gas insulated combined electrical equipment
Metal shell；The high-pressure conductor is located at the inside of the gas insulated combined electrical equipment；The outer tank body include side surface and
Blind end；
Wherein, the metal sensor square piece is the part cut down from the side surface of the outer tank body, and is being surveyed
Measure before voltage, the metal sensor square piece is pasted into the incision in the side surface；
One end of the resistance connects the metal sensor square piece, and the other end of the resistance connects the outer tank body, and
Described cable one end is connected with the resistance；
The manograph connects the other end of the cable, for obtaining resistive voltage value；
The voltage display connects the manograph, for showing magnitude of voltage of the high-pressure conductor to outer tank body.
Optionally, the metal sensor square piece is separated by insulation film with the side surface, for the metal that insulate
Sense square piece and the outer tank body.
Optionally, the insulation film is Kapton or other insulating materials.
Optionally, the gas insulated combined electrical equipment is cylinder, and is placed horizontally at the pallet apart from ground h meters of height
On.
Optionally, the Standard resistance range of the resistance is 0.1M Ω~200M Ω.
Optionally, the cable is coaxial cable.
Optionally, described device also includes metal shielding box；The metal shielding box, on the side surface, makes
The resistance and the metal sensor square piece are arranged between the metal shielding box and the side surface, are hedged off from the outer world；Institute
Metal shielding box is stated, for shielding outside electromagnetic interference.
The specific embodiment provided according to the present invention, the invention discloses following technique effect：
The GIS bus voltage measurements the invention discloses a kind of foundation in low-pressure tank body side surface that the present invention is provided are filled
Put, the GIS bus voltage measurements device include metal sensor square piece, gas insulated combined electrical equipment, resistance, cable, manograph with
And voltage display；Wherein, gas insulated combined electrical equipment includes high-pressure conductor and outer tank body；Metal sensor square piece is from outer tank body
The part that cuts down of side surface, and before measurement voltage, metal sensor square piece is pasted into the otch in side surface
Place；One end connection metal sensor square piece of resistance, other end connection outer tank body；The terminating resistor of cable one, the other end and manograph
It is connected；The manograph other end connects voltage display, for magnitude of voltage of the high-pressure conductor to outer tank body to be calculated and be shown.Therefore,
Using the GIS bus voltage measurement devices that provide of the present invention, gas-insulated combination can be obtained by measuring the magnitude of voltage of resistance
Electrical equipment inner high voltage conductor is to the magnitude of voltage of outer tank body, and then magnitude of voltage when obtaining ultra-high-tension power transmission line operation, realizes prison in real time
Survey the purpose of the running status of ultra-high-tension power transmission line.
In addition, the present invention is compared with prior art, voltage transformer has been abandoned, has been solved in monitoring high voltage transmission line in real time
During the running status on road, voltage transformer is used, and transformer build is big, involve great expense, safeguard and the cost of overhaul is used in the presence of having
The problems such as high, measurement is dumb, loss is big, insulating requirements are high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is GIS bus voltage measurement apparatus structure schematic diagram of the foundation of the embodiment of the present invention in low-pressure tank body side surface；
Fig. 2 is that foundation of the embodiment of the present invention is shown in the GIS bus voltage measurement device annexations of low-pressure tank body side surface
It is intended to；
Fig. 3 is GIS bus voltage measurement device longitudinal sectional drawing of the foundation of the embodiment of the present invention in low-pressure tank body side surface；
Fig. 4 is GIS bus voltage measurement device lateral profile of the foundation of the embodiment of the present invention in low-pressure tank body side surface；
Fig. 5 is that foundation of the embodiment of the present invention is longitudinally cutd open in the GIS bus voltage measurement devices part of low-pressure tank body side surface
Face figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is an object of the invention to provide a kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface, energy
The running status of enough gas insulated transformer substation high voltage bus of monitoring in real time.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Fig. 1 is GIS bus voltage measurement apparatus structure schematic diagram of the foundation of the embodiment of the present invention in low-pressure tank body side surface,
Fig. 2 is GIS bus voltage measurement device annexation schematic diagram of the foundation of the embodiment of the present invention in low-pressure tank body side surface；Fig. 3
The GIS bus voltage measurement device longitudinal sectional drawings in low-pressure tank body side surface are set up for the embodiment of the present invention；Fig. 4 is the present invention
Embodiment sets up the GIS bus voltage measurement device lateral profiles in low-pressure tank body side surface；Fig. 5 builds for the embodiment of the present invention
Stand in the GIS bus voltage measurement device partial longitudinal sections of low-pressure tank body side surface.As shown in figure 1, what the present invention was provided
A kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface, including：Metal sensor square piece 101, gas-insulated group
Close electrical equipment 102, resistance 103, cable 104, manograph 105 and voltage display 106；Fig. 2 is that the embodiment of the present invention is specifically electric
Pressure measuring device annexation schematic diagram, as shown in Fig. 2 including metal sensor square piece 101, gas insulated combined electrical equipment 102, electricity
Resistance 103, cable 104, manograph 105, insulating barrier 203；Wherein, gas insulated combined electrical equipment 102 includes high-pressure conductor 201 and outer
Tank body 202；As shown in figure 3, including high-pressure conductor 201, outer tank body 202, metal sensor square piece 101；As shown in figure 4, including height
Press conductor 201, outer tank body 202, metal sensor square piece 101 and metal shielding box 401；As shown in figure 5, including resistance 103, gold
Belong to shielding box 401, cable 104.
The gas insulated combined electrical equipment 102 includes high-pressure conductor 201 and outer tank body 202 with cylindrical structure；It is described
Outer tank body 202 is the metal shell of the gas insulated combined electrical equipment 102；The high-pressure conductor 201 is located at the gas-insulated
The inside of combined electrical apparatus 102；The outer tank body 202 includes side surface and blind end；The metal sensor square piece 101 is from described
The part that the side surface of outer tank body 202 is cut down, and before measurement voltage, the metal sensor square piece 101 is pasted
Incision in the side surface of outer tank body 202；One end of the resistance 103 connects the metal sensor square piece 101, the electricity
The other end of resistance 103 connects the outer tank body 202, and the one end of the cable 104 connects the resistance 103；The manograph 105
The other end of the cable 104 is connected, for obtaining resistive voltage value；The voltage display 106 connects the manograph
105, for according to the resistive voltage value, magnitude of voltage of the high-pressure conductor to outer tank body to be calculated and be shown.
The metal sensor square piece 101 is separated by insulating barrier 203 with the side surface of outer tank body 202, for preventing
Metal sensor square piece 101 is stated to be powered with the outer tank body 202.
The insulating barrier 203 is Kapton or other insulating materials.
The gas insulated combined electrical equipment 102 is cylinder, and is placed horizontally on the pallet of ground h meters of height,
And be grounded.
The Standard resistance range of the resistance 103 is 0.1M Ω~200M Ω.
The cable 104 is coaxial cable.
The device also includes metal shielding box 401；The metal shielding box 401, installed in the side table of outer tank body 202
Face, makes the resistance 103 and the metal sensor square piece 101 be arranged on the metal shielding box and the side table of outer tank body 202
Between face, it is hedged off from the outer world；The metal shielding box 401, for shielding outside electromagnetic interference.
In order to preferably enable the above objects, features and advantages of the present invention more obvious understandable, below by substep
The rapid manufacturing process to disclose voltage measuring apparatus, be specially
The first step：Measure before voltage, cut down a metal sensor square piece in the side surface of outer tank body 202 first
101, in side surface, incision coats Kapton, and metal sensor square piece 101 is pasted and cut in the side surface of outer tank body 202
At mouthful；In side surface, incision coats Kapton, for preventing metal sensor square piece to be powered with outer tank body.
Second step：By one end connection metal sensor square piece 101 of resistance 103, other end connection outer tank body 202, and electricity consumption
The resistance 103 in parallel of cable 104.
3rd step：By the connection cable 104 of manograph 105, the connection manograph 105 of voltage display 106.
After gas insulated combined electrical equipment 102 is powered, manograph 105 can obtain the magnitude of voltage of resistance 103 and by its voltage
Value is sent to voltage display 106；Then voltage display 106, according to this magnitude of voltage, are calculated and be shown high-pressure conductor to outer tank
The magnitude of voltage of body.
Wherein, voltage display 106 is that magnitude of voltage of the high-pressure conductor to outer tank body is determined according to formula (1), formula (1)
For：
Wherein, U2Represent the magnitude of voltage of high-pressure conductor, U1Resistive voltage value, R represents resistance value, and f represents frequency, ε0Represent
The Gases dielectric constant of gas insulated combined electrical equipment, r1Represent high-pressure conductor radius, r2Outer tank body radius is represented, p represents that metal is passed
Feel the circumferential lengths of square piece, l represents the axial length of metal sensor square piece.
The present invention obtains resistive voltage value, according to this magnitude of voltage, measures high pressure and lead by simply measuring voltage device
Body is to the magnitude of voltage of outer tank body, and then magnitude of voltage when obtaining ultra-high-tension power transmission line operation, reaches monitoring high voltage transmission line in real time
The purpose of the running status on road.And the measurement apparatus that the present embodiment is provided, installed in the lateral surface of outer tank body, during pressure measurement, without
Other operations, directly just can be with pressure measurement；Small volume, cost is low, will not be broken down because of isolator operation.In addition, will survey
Pressure device is arranged on the lateral surface of outer tank body, and the inspection and maintenance of gas insulated combined electrical equipment are not influenceed, gas-insulated is simplified
The body design of combined electrical apparatus.
In order to which the voltage measuring apparatus for the offer for verifying the present invention can accurately obtain the magnitude of voltage on high voltage transmission line,
Now proved with following examples.
Embodiment one
It is 50kV (magnitude of voltage i.e. on high voltage transmission line is 50kV) to apply crest voltage in high-pressure conductor 201, and high pressure is led
A diameter of 110mm of body 201, overall diameter is 130mm, and length is 800mm；A diameter of 317mm of outer tank body 202, overall diameter is
325mm, length is 500mm；The area of the selection of resistance 103 and metal sensor square piece, actual conditions are relevant；Survey for convenience
Amount, can setting measurement resistance value according to high voltage bus voltage.If the voltage of resistance 103 is that 1V is optimal, different resistance values correspondence
Metal sensor square piece area, as shown in table 1；Different metal senses the corresponding resistance value of area of square piece, as shown in table 2.
The resistive voltage of table 1 is the area of the corresponding metal sensor square piece of different resistance values under the conditions of 1V
The resistive voltage of table 2 is the corresponding resistance value of area of different metal sensing square piece under the conditions of 1V
It is 0.1M Ω to choose first group of data, the i.e. resistance of resistance 103 in table 1, and the circumferential p of metal sensor square piece is
101.68mm, axial l are 100mm, the measurement magnitude of voltage U of metal sensor square piece1It is can be calculated for 1V by formula (1), it is high
Press the magnitude of voltage U of conductor2For 49.89kV, measurement accuracy is up to 99.78%, and phase angle error is 0.155 degree.Therefore, by this
Embodiment can verify that the present invention provides a kind of voltage measuring apparatus based on GIS low-pressure tank body side surfaces, can accurately obtain
Magnitude of voltage when taking the ultra-high-tension power transmission line to run, and the purpose of the running status of monitoring ultra-high-tension power transmission line in real time can be realized.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
The bright method and its core concept for being only intended to help to understand the present invention；Simultaneously for those of ordinary skill in the art, foundation
The thought of the present invention, will change in specific embodiments and applications.In summary, this specification content is not
It is interpreted as limitation of the present invention.
Claims (7)
1. a kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface, it is characterised in that the GIS buses electricity
Pressure measuring device includes：Metal sensor square piece, gas insulated combined electrical equipment, resistance, cable, manograph and voltage display；
The gas insulated combined electrical equipment includes high-pressure conductor and outer tank body with cylindrical structure；The outer tank body is that the gas is exhausted
The metal shell of edge combined electrical apparatus；The high-pressure conductor is located at the inside of the gas insulated combined electrical equipment；The outer tank body bag
Include side surface and blind end；
Wherein, the metal sensor square piece is the part cut down from the side surface of the outer tank body, and in measurement electricity
Before pressure, the metal sensor square piece is pasted into the incision in the side surface；
One end of the resistance connects the metal sensor square piece, and the other end of the resistance connects the outer tank body, and described
Cable one end is connected with the resistance；
The manograph connects the other end of the cable, for obtaining resistive voltage value；
The voltage display connects the manograph, for showing magnitude of voltage of the high-pressure conductor to outer tank body.
2. GIS bus voltage measurements device according to claim 1, it is characterised in that the metal sensor square piece passes through
Insulation film is separated with the side surface, for the metal sensor square piece and the outer tank body of insulating.
3. GIS bus voltage measurements device according to claim 2, it is characterised in that the insulation film is that polyamides is sub-
Amine film or other insulating materials.
4. GIS bus voltage measurements device according to claim 1, it is characterised in that the gas insulated combined electrical equipment
For cylinder, and it is placed horizontally on the pallet of ground h meters of height.
5. it is according to claim 1 a kind of based on GIS low-pressure tank body side surface voltage measuring apparatus, it is characterised in that institute
The Standard resistance range for stating resistance is 0.1M Ω~200M Ω.
6. GIS bus voltage measurements device according to claim 1, it is characterised in that the cable is coaxial cable.
7. GIS bus voltage measurements device according to claim 1, it is characterised in that described device also includes metal screen
Cover box；The metal shielding box, on the side surface, makes the resistance and the metal sensor square piece be arranged on described
Between metal shielding box and the side surface, it is hedged off from the outer world；The metal shielding box, for shielding outside electromagnetic interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137042.3A CN107064600B (en) | 2017-03-09 | 2017-03-09 | A kind of GIS bus voltage measurement device established in low-pressure tank body side surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137042.3A CN107064600B (en) | 2017-03-09 | 2017-03-09 | A kind of GIS bus voltage measurement device established in low-pressure tank body side surface |
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| CN107064600A true CN107064600A (en) | 2017-08-18 |
| CN107064600B CN107064600B (en) | 2019-08-23 |
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| CN201710137042.3A Expired - Fee Related CN107064600B (en) | 2017-03-09 | 2017-03-09 | A kind of GIS bus voltage measurement device established in low-pressure tank body side surface |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593997A (en) * | 2018-06-04 | 2018-09-28 | 华北电力大学 | A kind of voltage measuring apparatus and method suitable for transmission line of electricity |
| CN108872676A (en) * | 2018-06-04 | 2018-11-23 | 华北电力大学 | A kind of substation bus bar duplex frequency voltage measuring device |
| CN110542777A (en) * | 2019-09-29 | 2019-12-06 | 华北电力大学 | Three-phase integrated GIS independent bus voltage measuring device |
| CN110596553A (en) * | 2019-10-10 | 2019-12-20 | 华北电力大学 | Transformer on-line monitoring measuring device |
| CN111089999A (en) * | 2020-02-10 | 2020-05-01 | 华北电力大学 | Parallel AC high-voltage line voltage measuring device and method |
| CN111190086A (en) * | 2020-03-11 | 2020-05-22 | 华北电力大学 | GIS partial discharge on-line monitoring device |
| CN111273070A (en) * | 2020-02-10 | 2020-06-12 | 华北电力大学 | Tandem type alternating-current high-voltage bus measuring device and method |
| CN112034235A (en) * | 2020-09-07 | 2020-12-04 | 广东电网有限责任公司广州供电局 | Device and method suitable for measuring power frequency voltage of T-shaped cable connector |
| CN112904253A (en) * | 2021-01-15 | 2021-06-04 | 华北电力大学 | Electronic measuring device with temperature self-calibration function |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593997A (en) * | 2018-06-04 | 2018-09-28 | 华北电力大学 | A kind of voltage measuring apparatus and method suitable for transmission line of electricity |
| CN108872676A (en) * | 2018-06-04 | 2018-11-23 | 华北电力大学 | A kind of substation bus bar duplex frequency voltage measuring device |
| CN108593997B (en) * | 2018-06-04 | 2019-12-06 | 华北电力大学 | Voltage measuring device and method suitable for power transmission line |
| CN110542777A (en) * | 2019-09-29 | 2019-12-06 | 华北电力大学 | Three-phase integrated GIS independent bus voltage measuring device |
| CN110542777B (en) * | 2019-09-29 | 2020-08-14 | 华北电力大学 | Three-phase integrated GIS independent bus voltage measuring device |
| CN110596553A (en) * | 2019-10-10 | 2019-12-20 | 华北电力大学 | Transformer on-line monitoring measuring device |
| CN111089999A (en) * | 2020-02-10 | 2020-05-01 | 华北电力大学 | Parallel AC high-voltage line voltage measuring device and method |
| CN111273070A (en) * | 2020-02-10 | 2020-06-12 | 华北电力大学 | Tandem type alternating-current high-voltage bus measuring device and method |
| CN111190086A (en) * | 2020-03-11 | 2020-05-22 | 华北电力大学 | GIS partial discharge on-line monitoring device |
| CN112034235A (en) * | 2020-09-07 | 2020-12-04 | 广东电网有限责任公司广州供电局 | Device and method suitable for measuring power frequency voltage of T-shaped cable connector |
| CN112034235B (en) * | 2020-09-07 | 2023-06-27 | 广东电网有限责任公司广州供电局 | Device and method suitable for power frequency voltage measurement of cable T-shaped connector |
| CN112904253A (en) * | 2021-01-15 | 2021-06-04 | 华北电力大学 | Electronic measuring device with temperature self-calibration function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107064600B (en) | 2019-08-23 |
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