CN207896717U - A kind of CT electricity getting devices for energy monitoring apparatus - Google Patents
A kind of CT electricity getting devices for energy monitoring apparatus Download PDFInfo
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- CN207896717U CN207896717U CN201820194161.2U CN201820194161U CN207896717U CN 207896717 U CN207896717 U CN 207896717U CN 201820194161 U CN201820194161 U CN 201820194161U CN 207896717 U CN207896717 U CN 207896717U
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Abstract
The utility model discloses a kind of CT electricity getting devices for energy monitoring apparatus, including electricity-fetching module and electric energy conversion module, electricity-fetching module includes taking electromagnet core and being wrapped in the electricity taking coil taken on electromagnet core, power circuit is passed through from taking in electromagnet core, the both ends of electricity taking coil are connected with electric energy conversion module, electric energy conversion module includes the current rectifying and wave filtering circuit being sequentially connected, DC DC circuits, power conditioning circuitry and voltage-stabilizing output circuit, voltage-stablizer output circuit connects energy monitoring apparatus, the output end of current rectifying and wave filtering circuit is parallel with energy storage device, energy storage device is connected with energy monitoring apparatus.Electromagnetic energy on power circuit is converted to voltage signal by electricity taking coil, after rectified filter circuit is changed into d. c. voltage signal, in part deposit accumulator, is powered for energy monitoring apparatus after another part is conditioned.The utility model can convert the electromagnetic energy around conducting wire to electric energy, stable power supply be provided for energy monitoring apparatus, proof load is run with security and stability.
Description
Technical field
The utility model is related to energy monitoring apparatus fields more particularly to a kind of CT for energy monitoring apparatus to take Denso
It sets.
Background technology
Electric system on-line monitoring is the important means that operation power department obtains operation data, complete with intelligent grid
Face is built, and in order to improve the management level of power grid, improves power supply quality and people's power supply reliability, there is an urgent need to have to power grid
The monitoring of effect needs to set various energy monitoring apparatus such as The Rogowski Optical Current Transformer, temperature measurement equipment and vibration monitoring
Standby etc. be installed on power equipment carries out monitoring steady in a long-term.Above-mentioned energy monitoring apparatus is due to being directly installed on transmission line of electricity
On, it can not directly power from ground side to it, therefore the powerup issue of energy monitoring apparatus is energy monitoring apparatus normal operation
And important guarantee.
For existing energy monitoring apparatus generally in such a way that transformer takes electricity and current transformer to take electricity, transformer takes electricity
The volume of power supply is larger, and cost is higher and safety is bad, takes electricity that can reduce volume although electric currentization has been done, reduces cost,
But when current transformer stops to charge the battery, Current Transformer Secondary side is likely to occur high pressure, to cause electric power
Monitoring device is damaged, and the safe and stable operation of energy monitoring apparatus is influenced.
Utility model content
The purpose of this utility model is to provide a kind of CT electricity getting devices for energy monitoring apparatus, can be by conducting wire week
The electromagnetic energy enclosed is converted into electric energy, and stable power supply is provided for energy monitoring apparatus, and proof load is run with security and stability.
To achieve the above object, the utility model adopts the following technical solution：
A kind of CT electricity getting devices for energy monitoring apparatus, including electricity-fetching module and electric energy conversion module, it is described to take electricity
Module includes taking electromagnet core and being wrapped in the electricity taking coil taken on electromagnet core, and power circuit is passed through from taking in electromagnet core, takes electric wire
The both ends of circle are connected with electric energy conversion module, electric energy conversion module include the current rectifying and wave filtering circuit being sequentially connected, DC-DC circuit,
Power conditioning circuitry and voltage-stabilizing output circuit, voltage-stabilizing output circuit connect energy monitoring apparatus, the current rectifying and wave filtering circuit it is defeated
Outlet is parallel with energy storage device, and energy storage device is connected with energy monitoring apparatus.
Preferably, the electric energy conversion module further includes measuring iron core and being wrapped in the measuring coil measured on iron core, electric
Line of force road is passed through from measurement iron core, and the both ends of measuring coil are connected with electric energy conversion module.
Preferably, described that electromagnet core and measurement iron core is taken to be all made of open type iron core, i.e., by upper and lower two semicircular iron
Core is composed, and electromagnet core and the outer circle of measurement iron core is taken to be arranged with sealing ring.
Preferably, further include protection module, the protection module includes exchange over-voltage detection circuit, DC over-voltage detection electricity
Road, first phase zero cross detection circuit, trigger circuit and bidirectional triode thyristor exchange the both ends of over-voltage detection circuit and electricity taking coil
It is connected, first phase zero cross detection circuit is connected with the input terminal of rectification filtering module, and DC over-voltage detection circuit is filtered with rectification
The output end of wave module is connected, and the output end of first phase zero cross detection circuit is connected with master controller, the output of master controller
End and the output end of DC over-voltage detection circuit are connected with the input terminal of trigger circuit respectively, the output end of trigger circuit with it is two-way
Silicon-controlled control pole is connected, and the anode and cathode of bidirectional triode thyristor is connected with the both ends of electricity taking coil respectively；The accumulator
Both ends be parallel with voltage detecting circuit, the output end of voltage detecting circuit is connected with master controller.
Preferably, the protection module further include the second phase zero cross detection circuit being connected with the both ends of measuring coil and
The output end of original edge voltage detection circuit, second phase zero cross detection circuit and original edge voltage detection circuit respectively with master controller
It is connected
Preferably, the energy storage device uses accumulator.
The utility model on power circuit by being arranged electricity taking coil and taking electromagnet core by the electromagnetic energy around conducting wire
Amount is converted into electric energy, and stable power supply is provided for energy monitoring apparatus, and electricity taking coil converts the electromagnetic signal on power circuit
For voltage signal, after rectified filter circuit is changed into d. c. voltage signal, in part deposit accumulator, another part is successively
It powers for energy monitoring apparatus through DC-DC circuit, power conditioning circuitry and voltage-stabilizing output circuit, the both ends of accumulator are parallel with electricity
Detection circuit, voltage detecting circuit is pressed to detect the voltage value at accumulator both ends in real time, when accumulator, which charges, to be saturated, voltage detecting
Circuit controls bidirectional triode thyristor conducting by controller, and electricity taking coil is exported short circuit, prevent electricity taking coil output HIGH voltage and
Energy monitoring apparatus is caused to damage；In addition, protection circuit detects the voltage of each position of the present apparatus in real time, when a certain voltage is more than
When setting value, master controller is connected by trigger circuit triggers bidirectional triode thyristor, to ensure the steady of electricity taking coil output voltage
It is fixed, stable power supply is provided for energy monitoring apparatus, proof load is run with security and stability.
Description of the drawings
Fig. 1 is the principles of the present invention block diagram.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described reality
The section Example that example is only the utility model is applied, instead of all the embodiments.Based on the embodiments of the present invention,
Other all embodiments that those of ordinary skill in the art are obtained without making creative work belong to this
The protection domain of utility model.
As shown in Figure 1, a kind of CT electricity getting devices for energy monitoring apparatus described in the utility model, including take electric mould
Block and electric energy conversion module, electricity-fetching module include taking electromagnet core 1 and measuring iron core 4, and power circuit 3 is successively from measurement 4 He of iron core
It takes in electromagnet core 1 and passes through, in the present embodiment, take electromagnet core 1 and measurement iron core 4 to be all made of open type iron core, i.e., by upper and lower two
A semicircular iron core is composed, and takes electromagnet core 1 and the outer circle of measurement iron core 4 to be arranged with sealing ring, for preventing up and down
Two iron core fitting position water inlets cause iron core corrosion, take and are wound with electricity taking coil 2 on electromagnet core 1, measure and be wound on iron core 4
The both ends of measuring coil 5, electricity taking coil 2 and measuring coil 5 are connected with electric energy conversion module respectively, electric energy conversion module include according to
Secondary connected current rectifying and wave filtering circuit, DC-DC circuit, power conditioning circuitry and voltage-stabilizing output circuit, voltage-stabilizing output circuit connection electricity
The output end of power monitoring device, current rectifying and wave filtering circuit is parallel with energy storage device, and in the present embodiment, energy storage device uses electric power storage
Pond, for storing the electric energy that electricity taking coil 2 generates, accumulator is connected accumulator with energy monitoring apparatus.
Electromagnetic energy on power circuit 3 is converted to voltage signal by electricity taking coil 2, and rectified filter circuit is changed into directly
After flowing voltage signal, in part deposit accumulator, another part is defeated through DC-DC circuit, power conditioning circuitry and voltage stabilizing successively
Go out circuit to power for energy monitoring apparatus.
The utility model further includes protection module, and protection module includes exchange over-voltage detection circuit, DC over-voltage detection electricity
Road, first phase zero cross detection circuit, trigger circuit and bidirectional triode thyristor, exchange over-voltage detection circuit and the two of electricity taking coil 2
End is connected, and first phase zero cross detection circuit is connected with the input terminal of rectification filtering module, DC over-voltage detection circuit and rectification
The output end of filter module is connected, and the output end of first phase zero cross detection circuit is connected with master controller, master controller it is defeated
The output end of outlet and DC over-voltage detection circuit is connected with the input terminal of trigger circuit respectively, the output end of trigger circuit with it is double
It is connected to the control pole of silicon-controlled OSC1, the anode and cathode of bidirectional triode thyristor OSC1 is connected with the both ends of electricity taking coil 2 respectively；
The both ends of accumulator are parallel with voltage detecting circuit, and the output end of voltage detecting circuit is connected with master controller；Measuring coil
Both ends are connected separately with second phase zero cross detection circuit and original edge voltage detection circuit, second phase zero cross detection circuit and original
The output end of polygonal voltage detection circuit is connected with master controller respectively.
The voltage at 2 both ends of over-voltage detection circuit detection electricity taking coil is exchanged, DC over-voltage detection circuit acquires rectifying and wave-filtering
The voltage of circuit output end, when above-mentioned a certain voltage is more than setting value, master controller is two-way controllable by trigger circuit triggers
Silicon OSC1 conductings, the output voltage of electricity taking coil 2 are reduced to zero, prevent from causing electricity taking coil since the voltage on power circuit is excessive
The excessive phenomenon of voltage of 2 outputs, master controller monitor the defeated of transmission line of electricity primary current, phase difference and DC-DC circuit in real time
Go out voltage, ensures that energy monitoring apparatus long-term safety is steadily run.
Voltage detecting circuit detects the voltage value at accumulator both ends, and when accumulator, which charges, to be saturated, voltage detecting circuit is defeated
Go out signal to master controller, master controller controls bidirectional triode thyristor OSC1 by trigger circuit and is connected, by the output of electricity taking coil 2
Short circuit by accumulator is that energy monitoring apparatus is powered after short circuit, timer, bidirectional triode thyristor OSC1 conductings is equipped in master controller
Afterwards, timer starts timing, and after timing time arrives, main controller controls bidirectional triode thyristor OSC1 cut-offs, electricity taking coil 2 continues
It powers for accumulator and energy monitoring apparatus.
The utility model can convert the electromagnetic energy around conducting wire to electric energy, be provided for energy monitoring apparatus stable
Power supply, proof load are run with security and stability.
Claims (6)
1. a kind of CT electricity getting devices for energy monitoring apparatus, it is characterised in that：Including electricity-fetching module and electric energy conversion module,
The electricity-fetching module includes taking electromagnet core and being wrapped in the electricity taking coil taken on electromagnet core, and power circuit is worn from taking in electromagnet core
Cross, the both ends of electricity taking coil are connected with electric energy conversion module, electric energy conversion module include the current rectifying and wave filtering circuit being sequentially connected,
DC-DC circuit, power conditioning circuitry and voltage-stabilizing output circuit, voltage-stabilizing output circuit connect energy monitoring apparatus, the rectification filter
The output end of wave circuit is parallel with energy storage device, and energy storage device is connected with energy monitoring apparatus.
2. a kind of CT electricity getting devices for energy monitoring apparatus as described in claim 1, it is characterised in that：The electric energy turns
Mold changing block further includes measuring iron core and being wrapped in the measuring coil measured on iron core, and power circuit is passed through from measurement iron core, surveyed
The both ends of amount coil are connected with electric energy conversion module.
3. a kind of CT electricity getting devices for energy monitoring apparatus as claimed in claim 2, it is characterised in that：It is described to take electromagnetism
Core and measurement iron core are all made of open type iron core, i.e., are composed of upper and lower two semicircular iron cores, take electromagnet core and measurement
The outer circle of iron core is arranged with sealing ring.
4. a kind of CT electricity getting devices for energy monitoring apparatus as claimed in claim 3, it is characterised in that：It further include protection
Module, the protection module include exchange over-voltage detection circuit, DC over-voltage detection circuit, first phase zero cross detection circuit,
Trigger circuit and bidirectional triode thyristor, exchange over-voltage detection circuit are connected with the both ends of electricity taking coil, first phase zero passage detection electricity
Road is connected with the input terminal of rectification filtering module, and DC over-voltage detection circuit is connected with the output end of rectification filtering module, and first
The output end of phase zero cross detection circuit is connected with master controller, the output end of master controller and DC over-voltage detection circuit it is defeated
Outlet is connected with the input terminal of trigger circuit respectively, and the output end of trigger circuit is connected with the control pole of bidirectional triode thyristor, two-way
Silicon-controlled anode and cathode is connected with the both ends of electricity taking coil respectively；The both ends of the energy storage device are parallel with voltage detecting electricity
The output end on road, voltage detecting circuit is connected with master controller.
5. a kind of CT electricity getting devices for energy monitoring apparatus as claimed in claim 4, it is characterised in that：The protection mould
Block further includes the second phase zero cross detection circuit being connected with the both ends of measuring coil and original edge voltage detection circuit, second phase
Zero cross detection circuit and the output end of original edge voltage detection circuit are connected with master controller respectively.
6. a kind of CT electricity getting devices for energy monitoring apparatus as claimed in claim 5, it is characterised in that：The energy storage is set
It is standby to use accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820194161.2U CN207896717U (en) | 2018-02-05 | 2018-02-05 | A kind of CT electricity getting devices for energy monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820194161.2U CN207896717U (en) | 2018-02-05 | 2018-02-05 | A kind of CT electricity getting devices for energy monitoring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207896717U true CN207896717U (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820194161.2U Active CN207896717U (en) | 2018-02-05 | 2018-02-05 | A kind of CT electricity getting devices for energy monitoring apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048516A (en) * | 2019-05-29 | 2019-07-23 | 青岛科汇电气有限公司 | A kind of electric current electricity getting system of wide scope high current protection |
| CN113746212A (en) * | 2021-07-30 | 2021-12-03 | 广西电网有限责任公司电力科学研究院 | High-efficiency induction power taking system for high-voltage line |
| CN114256993A (en) * | 2022-02-24 | 2022-03-29 | 浙江新图维电子科技有限公司 | Electric installation is got around package type cable |
-
2018
- 2018-02-05 CN CN201820194161.2U patent/CN207896717U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048516A (en) * | 2019-05-29 | 2019-07-23 | 青岛科汇电气有限公司 | A kind of electric current electricity getting system of wide scope high current protection |
| CN113746212A (en) * | 2021-07-30 | 2021-12-03 | 广西电网有限责任公司电力科学研究院 | High-efficiency induction power taking system for high-voltage line |
| CN114256993A (en) * | 2022-02-24 | 2022-03-29 | 浙江新图维电子科技有限公司 | Electric installation is got around package type cable |
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