CN108389758A - A kind of pole-mounted circuit breaker of integrated mutual inductor - Google Patents
A kind of pole-mounted circuit breaker of integrated mutual inductor Download PDFInfo
- Publication number
- CN108389758A CN108389758A CN201810088850.XA CN201810088850A CN108389758A CN 108389758 A CN108389758 A CN 108389758A CN 201810088850 A CN201810088850 A CN 201810088850A CN 108389758 A CN108389758 A CN 108389758A
- Authority
- CN
- China
- Prior art keywords
- mutual inductor
- pole
- mounted circuit
- circuit breaker
- current
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/38—Instruments transformers for polyphase ac
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
Abstract
The present invention provides a kind of pole-mounted circuit breakers of integrated mutual inductor, including current transformer, voltage transformer and breaker body, the current transformer and voltage transformer are electrically connected with the operating mechanism of the breaker body respectively, and sending it with the operating mechanism respectively measures current data and voltage data.The object of the present invention is to provide a kind of pole-mounted circuit breakers of integrated electronic type mutual inductor, make the integrated level higher of pole-mounted circuit breaker, install and use more convenient, and power consumption and input cost are lower.
Description
Technical field
The present invention relates to field of circuit breakers.It is more particularly related to a kind of pole-mounted circuit breaker of integrated mutual inductor.
Background technology
Pole-mounted circuit breaker needs to install mutual inductor acquisition electric current, voltage signal additional, and old-fashioned mutual inductor is former using electromagnetic induction
Reason, internal with cored, product power consumption is high, volume is big, weight is high, poor with breaker integrated level.In order to make pole-mounted circuit breaker
Integrated level higher, installs and uses more convenient, and power consumption and input cost are lower, and the present invention proposes a kind of column of integrated mutual inductor
Upper breaker.
Invention content
The object of the present invention is to provide a kind of pole-mounted circuit breakers of integrated electronic type mutual inductor, make the integrated of pole-mounted circuit breaker
Higher is spent, installs and uses more convenient, power consumption and input cost are lower.
In order to realize these purposes and other advantages according to the present invention, open circuit on a kind of column of integrated mutual inductor is provided
Device, including current transformer, voltage transformer and breaker body, the current transformer and voltage transformer respectively with it is described
The operating mechanism of breaker body is electrically connected, to send the current data measured and voltage data to the operating mechanism respectively.
Preferably, in a kind of pole-mounted circuit breaker of integrated mutual inductor, the current transformer is arranged described
On the pole of the arc-chutes of breaker body.
Preferably, in a kind of pole-mounted circuit breaker of integrated mutual inductor, the breaker body has babinet, institute
It states operating mechanism to be arranged in the babinet, the voltage transformer is arranged on the babinet.
Preferably, in a kind of pole-mounted circuit breaker of integrated mutual inductor, holder is provided on the babinet, it is described
Voltage transformer is arranged on the bracket.
Preferably, in a kind of pole-mounted circuit breaker of integrated mutual inductor, the current transformer is electronic type electricity
Current transformer.
Preferably, in a kind of pole-mounted circuit breaker of integrated mutual inductor, the electric current pressure mutual inductor is electronic type
Voltage transformer.
The present invention is integrated with electronic mutual inductor on the basis of pole-mounted circuit breaker original function, has acquisition three-phase electricity
The ability of stream, three-phase voltage, zero-sequence current, residual voltage, meet calculate active power, reactive power, power factor (PF), frequency and
The requirement of electric flux；Electronic type voltage transformer uses electric resistance partial pressure principle, electronic current mutual inductor to use low-power consumption coil
Principle has many advantages, such as that iron-core-free, damage is low, precision is high, small, light-weight.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pole-mounted circuit breaker of integrated mutual inductor of the present invention；
Fig. 2 is the schematic diagram of LPCT of the present invention；
Fig. 3 is the equivalent circuit diagram of LPCT of the present invention；
Fig. 4 is the structural schematic diagram of electronic type voltage transformer of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and is not the dress of instruction or hint meaning
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
As shown in Figure 1, the embodiment of the present invention provides a kind of pole-mounted circuit breaker of integrated mutual inductor, including electronic current
Mutual inductor 1, electronic type voltage transformer 2 and breaker body 3, the current transformer 1 are arranged in the breaker body 3
On the pole 4 of arc-chutes, there is the breaker body 3 babinet 5, the operating mechanism to be arranged in the babinet 5, the electricity
Press mutual inductor 2 to be arranged on the babinet 5, the current transformer 1 and voltage transformer 2 respectively with the breaker body 3
Operating mechanism electrical connection, to send the current data that measures and voltage data to the operating mechanism respectively.
In above-mentioned technical proposal, breaker is the protection element of current supply circuit, when circuit is in the event of failure by its tripping circuit,
And the protections such as loop protection overcurrent, overload, short circuit need to use current signal and voltage signal, so it is mutual to have installed electric current
Sensor 1 and voltage transformer 2, and circuit also needs to installing ammeter or other facilities for needing to use current signal sometimes,
So being also required to the current signal of the offer of current transformer 1.So in this programme on the basis of pole-mounted circuit breaker original function
It is integrated with electronic current mutual inductor 1 and electronic type voltage transformer 2, has acquisition three-phase current, three-phase voltage, zero sequence electricity
The ability of stream, residual voltage meets the requirement for calculating active power, reactive power, power factor (PF), frequency and electric flux；Electronics
Formula voltage transformer 2 use electric resistance partial pressure principle, electronic current mutual inductor 1 use low-power consumption coil principle, have iron-core-free,
Damage the advantages that low, precision is high, small, light-weight.
Specifically, as shown in Fig. 2-Fig. 3, electronic current mutual inductor uses iron-core coil low power current transformer
(LPCT), it is designed according to high-impedance resistors, under very high primary current, saturated characteristic is improved, and is expanded
Big measurement range, reduces power consumption, can be measured without the high accuracy of saturation be up to short circuit current overcurrent, it is complete partially
Short circuit current is moved, measurement and protection can share an iron-core coil low power current transformer；
LPCT is mainly by electromagnetic current transducer CT, sample resistance RsIt is formed with signal transmission unit.Busbar electricity
Stream is converted into secondary low current is, sample resistance secondary current is converted to be proportional to primary current small voltage signal it is defeated
Go out；Signal transmission unit is made of double layer screen twisted wire and connection terminal, and transformer output voltage signal is mainly transmitted to intelligence
Energy electronic equipment IED, while realizing external electromagnetic field function of shielding；
As shown in figure 4, the structure of electronic type voltage transformer is as shown in the figure.Mutual inductor is mainly by resitstance voltage divider, transmission
System and signal processing unit composition.Resitstance voltage divider is by high-voltage arm resistance R1, low-voltage arm resistance R2With the gas of overvoltage protection
Discharge tube S is constituted, low-voltage arm resistance R2Lower end connect with threaded ground connection inserts, to by be grounded inserts realize it is reliable
Ground connection.By double layer screen twisted wire and connection resitstance voltage divider as sensor head, mainly by a proportional conversion of busbar voltage
It is exported for small voltage signal；Transmission unit terminal is constituted, and divider output signal is mainly transmitted to signal processing unit, simultaneously
Realize outside electromagnetic interference function of shielding；Signal processing unit is mainly by voltage follow, phase compensation and proportion adjustment circuit group
At realizing the impedance transformation, phase compensation and amplitude regulatory function of voltage transformer.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and embodiment shown and described herein.
Claims (6)
1. a kind of pole-mounted circuit breaker of integrated mutual inductor, including current transformer (1), voltage transformer (2) and breaker body
(3), which is characterized in that the current transformer (1) and voltage transformer (2) actuating with the breaker body (3) respectively
Mechanism is electrically connected, to send the current data measured and voltage data to the operating mechanism respectively.
2. a kind of pole-mounted circuit breaker of integrated mutual inductor as described in claim 1, which is characterized in that the current transformer
(1) it is arranged on the pole (4) of the arc-chutes of the breaker body (3).
3. a kind of pole-mounted circuit breaker of integrated mutual inductor as described in claim 1, which is characterized in that the breaker body
(3) there is babinet (5), in the babinet (5), the voltage transformer (2) is arranged in the case for the operating mechanism setting
On body (5).
4. a kind of pole-mounted circuit breaker of integrated mutual inductor as claimed in claim 3, which is characterized in that set on the babinet (5)
It is equipped with holder (6), the voltage transformer (2) is arranged on the holder (6).
5. a kind of pole-mounted circuit breaker of integrated mutual inductor according to any one of claims 1-4, which is characterized in that the electric current
Mutual inductor (1) is electronic current mutual inductor (1).
6. a kind of pole-mounted circuit breaker of integrated mutual inductor according to any one of claims 1-4, which is characterized in that the electric current
Pressure mutual inductor is electronic type voltage transformer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088850.XA CN108389758A (en) | 2018-01-30 | 2018-01-30 | A kind of pole-mounted circuit breaker of integrated mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088850.XA CN108389758A (en) | 2018-01-30 | 2018-01-30 | A kind of pole-mounted circuit breaker of integrated mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108389758A true CN108389758A (en) | 2018-08-10 |
Family
ID=63074782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810088850.XA Pending CN108389758A (en) | 2018-01-30 | 2018-01-30 | A kind of pole-mounted circuit breaker of integrated mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108389758A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116500328A (en) * | 2023-06-06 | 2023-07-28 | 无锡市锡山湖光电器有限公司 | High-precision three-phase current sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202749310U (en) * | 2012-08-07 | 2013-02-20 | 南京贝尔电气设备有限公司 | Replaceable built-in voltage transformer high voltage alternating current dividing circuit breaker |
| DE102011083825A1 (en) * | 2011-09-30 | 2013-04-04 | Siemens Aktiengesellschaft | Switch e.g. low-voltage circuit breaker for interrupting current flowing through conductor into touch sensitive display device of mobile device, displaces the finger gestures within predefined coordinate system of display device |
| CN205028839U (en) * | 2015-09-08 | 2016-02-10 | 北京泽源惠通科技发展有限公司 | Vacuum circuit breaker |
| CN206451646U (en) * | 2017-02-22 | 2017-08-29 | 广东安普智信电气有限公司 | A kind of integral intelligent breaker |
-
2018
- 2018-01-30 CN CN201810088850.XA patent/CN108389758A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011083825A1 (en) * | 2011-09-30 | 2013-04-04 | Siemens Aktiengesellschaft | Switch e.g. low-voltage circuit breaker for interrupting current flowing through conductor into touch sensitive display device of mobile device, displaces the finger gestures within predefined coordinate system of display device |
| CN202749310U (en) * | 2012-08-07 | 2013-02-20 | 南京贝尔电气设备有限公司 | Replaceable built-in voltage transformer high voltage alternating current dividing circuit breaker |
| CN205028839U (en) * | 2015-09-08 | 2016-02-10 | 北京泽源惠通科技发展有限公司 | Vacuum circuit breaker |
| CN206451646U (en) * | 2017-02-22 | 2017-08-29 | 广东安普智信电气有限公司 | A kind of integral intelligent breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116500328A (en) * | 2023-06-06 | 2023-07-28 | 无锡市锡山湖光电器有限公司 | High-precision three-phase current sensor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180810 |