CN201478886U - High-voltage bus-bar electricity-obtaining power supply with splittable rectangular minicrystal iron core - Google Patents
High-voltage bus-bar electricity-obtaining power supply with splittable rectangular minicrystal iron core Download PDFInfo
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- CN201478886U CN201478886U CN2009201635586U CN200920163558U CN201478886U CN 201478886 U CN201478886 U CN 201478886U CN 2009201635586 U CN2009201635586 U CN 2009201635586U CN 200920163558 U CN200920163558 U CN 200920163558U CN 201478886 U CN201478886 U CN 201478886U
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Abstract
The utility model provides a high-voltage bus-bar power supply with a splittable rectangular minicrystal iron core, relating to a high-voltage bus-bar electricity-obtaining coil and a power supply design. The upper half rectangular iron core and the lower half rectangular iron core are oppositely arranged so as to composite the splittable rectangular minicrystal iron core; the clearances at the left side and the right side, used for connecting the rectangular bus-bar, are filled with adhesive; furthermore, the clearance is sheathed with a connecting sheath; the rectangular bus-bar is arranged between the upper half rectangular iron core and the lower half rectangular iron core; the lower half rectangular iron core is provided with a secondary electricity-obtaining coil; and a high-voltage tap, a middle-voltage tap and a low-voltage tap of the secondary electricity-obtaining coil are connected with a rectifying, filtering and voltage-stabilizing circuit. In the utility model, the electricity is obtained from high-voltage bus-bar or cables by induction, the volume is small, and the bus-bar or the cable used for power supply has large current range; and as electric connection with the low voltage side is not adopted and connection with the bus-bar in the way of equal potential is adopted, insulation breakdown does not occur, the insulation performance of the original power supply system is not affected, and the continuous output of stable direct current power supply can be realized.
Description
Technical field
The utility model relates to high voltage bus power taking coil and power supply, a kind of specifically high voltage bus power taking power supply of detachable rectangle crystallite iron core.
Background technology
In high tension loop, often to monitor various parameters of electric power, as temperature, voltage, electric current, vibration and insulation status etc., high-pressure side itself can't power, and can not take resistance and capacity earth dividing potential drop to power, and can influence the insulation property of system like this.Under this condition, in order to realize power supply, the photocell of prior art employing energy storage battery, laser tube energy supply and high voltagehigh frequency isolating transformer are (as publication number CN1441541A, high-voltage switch gear, Bus Temperature on-line inspection system and its power supply method) power supply, its shortcoming is: the cost height, system complex, poor reliability.
The utility model content
At the defective that exists in the prior art, the purpose of this utility model is to provide a kind of high voltage bus power taking power supply of detachable rectangle crystallite iron core, take from high voltage bus or cable induction power taking, volume is little, the bus of power supply or the current range of cable are big, owing to low-pressure side any being electrically connected do not arranged, adopt the equipotential mode with bus, there is not insulation breakdown or influences the insulation property of former electric power system, can realize exporting continuously stable dc power supply.
For reaching above purpose, the technical scheme that the utility model is taked is:
A kind of high voltage bus power taking power supply of detachable rectangle crystallite iron core, it is characterized in that: first rectangle iron core 1 and second rectangle iron core 2 are oppositely arranged and constitute detachable rectangle crystallite iron core, the gap location that being used to of the left and right sides connects rectangular bus bar is filled with bonded adhesives 7, and described gap location is set with and connects sheath 4, rectangular bus bar 3 is arranged between first rectangle iron core 1 and second rectangle iron core 2, second rectangle iron core 2 is provided with secondary power taking coil 5, the high pressure tap 11 of secondary power taking coil 5, after tap 12 of middle pressure and low pressure tap 13 are switched by winding transfer relay K, be connected with rectification filtering voltage stabilizing circuit 6, the material of first rectangle iron core 1 and second rectangle iron core 2 is a ultramicro-crystal alloy.
On the basis of technique scheme, rectification filtering voltage stabilizing circuit 6 adds DC/DC conversion voltage stabilizing circuit for rectifying and wave-filtering.
On the basis of technique scheme, winding transfer relay K and rectifying and wave-filtering add and are parallel with great power bidirectional TVS Transient Voltage Suppressor-TVS-1, TVS-2 between DC/DC conversion voltage stabilizing circuit.
On the basis of technique scheme, be provided with high-power unidirectional TVS transient voltage suppresser spare at the output of current rectifying and wave filtering circuit.
On the basis of technique scheme, be provided with high-power unidirectional TVS transient voltage suppresser spare at the output of DC/DC translation circuit.
The high voltage bus power taking power supply of detachable rectangle crystallite iron core described in the utility model, take from high voltage bus or cable induction power taking, volume is little, the bus of power supply or the current range of cable are big, owing to any being electrically connected do not arranged with low-pressure side, adopt the equipotential mode with bus, do not have insulation breakdown or influence the insulation property of former electric power system, can realize exporting continuously stable dc power supply.The utlity model has following advantage:
1, first rectangle iron core 1 and second rectangle iron core 2 adopt ultramicro-crystal alloys, and it is little to have a volume, magnetic field intensity height, the advantage that eddy current loss is little.
2, first rectangle iron core 1 and second rectangle iron core 2 constitute detachable rectangle crystallite iron core, are convenient to install and construction.
3, its stationary device can adopt buckle structure, convenient fixing.
4, adopt secondary coil, can in the current rectifying and wave filtering circuit of back, can switch the number of turn of secondary winding adaptively according to the size of bus current, voltage stabilizing circuit still obtains stable DC voltage when the bus current wide fluctuations.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 structural representation of the present utility model
The automatically switch control circuit of power taking coil turn of Fig. 2
The automatically switch control relay circuit of power taking coil turn of Fig. 3
Fig. 4 rectification and overvoltage crowbar
The functional block diagram of Fig. 5 DC/DC translation circuit chip
Fig. 6 DC/DC translation circuit figure
Fig. 7 adopts linear voltage-stabilizing circuit and the pin key diagram of NCP699
Output of Fig. 8 linear voltage-stabilizing circuit and overvoltage crowbar figure
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model is mainly used in the high voltage bus power taking, be applied in the supervisory control system in high-pressure system loop, as the high-voltage switch gear monitoring temperature of high-voltage board and the current measurement of bus, replace and use powered battery, relate in particular to bus and high-tension cable and pass the crystallite iron core as primary coil, the coil that is wrapped in the crystallite iron core provides Alternating Current Power Supply as the secondary secondary coil to current rectifying and wave filtering circuit, presses by voltage stabilizing circuit output galvanic current, for the high-pressure side secondary meter provides electric energy again.As Fig. 1, shown in 2, the high voltage bus power taking power supply of detachable rectangle crystallite iron core described in the utility model, comprise by first rectangle iron core 1 and second rectangle iron core 2 and be oppositely arranged the detachable rectangle crystallite iron core that constitutes, the gap location that being used to of the left and right sides connects rectangular bus bar is filled with bonded adhesives 7, and described gap location is set with and connects sheath 4, rectangular bus bar 3 is arranged between first rectangle iron core 1 and second rectangle iron core 2, second rectangle iron core 2 is provided with secondary power taking coil 5, the high pressure tap 11 of secondary power taking coil 5, after tap 12 of middle pressure and low pressure tap 13 are switched by winding transfer relay K, be connected with rectification filtering voltage stabilizing circuit 6, the material of first rectangle iron core 1 and second rectangle iron core 2 is a ultramicro-crystal alloy.In the technique scheme, the rectangular profile of detachable rectangle crystallite iron core is to pass iron core and be convenient to installation easily and efficiently for the ease of rectangular bus bar, the ultramicro-crystal alloy that iron core uses is a kind of novel soft magnetic material, the ultramicro-crystal alloy soft magnetic material has superior comprehensive electromagnetic performance and good prospects for application, has the advantage that volume is little, performance is high, cheap, begun progressively to replace electromagnetic devices such as traditional silicon steel, permalloy, ferrite, be used for the electromagnetic device field.
On the basis of technique scheme, rectification filtering voltage stabilizing circuit 6 adds DC/DC conversion voltage stabilizing circuit for rectifying and wave-filtering.Specifically can be divided into current rectifying and wave filtering circuit, DC/DC translation circuit and voltage stabilizing circuit three bulks, all devices of rectification filtering voltage stabilizing circuit 6 can adopt the SMT surface mount process, make its volume little, the technology compactness, and reliability improves.In the technique scheme, direct current regulation circuit in the rectification filtering voltage stabilizing circuit 6 adopts the DC/DC translation circuit, still can operate as normal under the situation of rectifying and wave-filtering output voltage fluctuation range big (4V-40V), and output current is big, can reach the electric current output of 1A.The DC/DC translation circuit can adopt self-oscillatory MC34063 switching voltage chip, the functional block diagram of MC34063 switching voltage chip as shown in Figure 5, Fig. 6 is a specific embodiment that can be used for the DC/DC translation circuit in the utility model, its peripheral circuit is simple, practical, cost is low.Rectification shown in Figure 4 and overvoltage crowbar are a specific embodiment that can be used for the current rectifying and wave filtering circuit in the utility model, and the alternating voltage of input is received D1 by the JPW connector, D2; D3, D4, D5; rectification and overvoltage crowbar that D6 forms; R1 and C1 eliminate high-frequency signal and surge pulse, and D1 and D6 are two-way TVS surge voltage absorption tubes, C2; C3; C4 and C5 play filter action, and rectifying tube adopts SS14 Xiao Te machine based diode, reduces the pressure drop of diode.Fig. 7,8 is a specific embodiment that can be used for the voltage stabilizing circuit in the utility model; Fig. 7 is for adopting linear voltage-stabilizing circuit and the pin key diagram of NCP699; Fig. 8 is linear voltage-stabilizing circuit output and overvoltage crowbar figure; as required; NCP699 can select to export 3.3V and 3.0V, and wherein U2 is the output voltage overvoltage crowbar, and model is MMBZ5V6ALT1; be equivalent to the effect of a voltage-stabiliser tube, prevent the output voltage overvoltage.C8, C9, C10, C11 and U3 form linear low pressure reduction voltage stabilizing circuit.
On the basis of technique scheme, as shown in Figure 2, winding transfer relay K and rectifying and wave-filtering add and are parallel with great power bidirectional TVS Transient Voltage Suppressor-TVS-1, TVS-2 between DC/DC conversion voltage stabilizing circuit, can prevent to exchange input high-voltage breakdown rectifying tube and the filter circuit overvoltage damages.
On the basis of technique scheme, be provided with high-power unidirectional TVS transient voltage suppresser spare at the output of current rectifying and wave filtering circuit, can prevent the overvoltage of filtering output direct current, damage the DC/DC conversion voltage stabilizing circuit and the chip of its back.The concrete set-up mode of high-power unidirectional TVS transient voltage suppresser spare can adopt existing techniques in realizing.
On the basis of technique scheme, be provided with high-power unidirectional TVS transient voltage suppresser spare at the output of DC/DC translation circuit, can prevent the overvoltage of DC/DC conversion voltage stabilizing circuit output direct current, damage corresponding circuit and chip that it is powered later.The concrete set-up mode of high-power unidirectional TVS transient voltage suppresser spare can adopt existing techniques in realizing.
The utility model provides more stable voltage in order to solve the different coil tap of under bus current wide fluctuations situation switching for the rectification circuit of back; make the output voltage stabilization of rectification filtering voltage stabilizing circuit 6; the control circuit of automatic switchover power taking coil turn as shown in Figure 2; by winding transfer relay K often open with normally-closed contact under control circuit shown in Figure 3 control; the number of turn of automatic switchover power taking coil; regulate the alternating voltage size of output, and under the protection of TVS1 and TVS2, prevent the influence of surge voltage the back circuit.That is: according to the size of bus current, can switch the number of turn of secondary winding adaptively, under the situation of bus current wide fluctuations, voltage stabilizing circuit still obtains galvanic current and presses.In the control relay circuit of automatic switchover power taking coil turn shown in Figure 3; when VIN is smaller; not conducting of D8; the basis set of Q1 is a low level; not conducting of Q1 makes the higher tap of the number of turn receive input protection and current rectifying and wave filtering circuit by the normally-closed contact of winding transfer relay K (model is HRAH-S-5-DC5V).Otherwise; when VIN when higher; the D8 conducting; the basis set of Q1 is a high level, the Q1 conducting, and relay gets electric closure; make the lower tap of the number of turn receive input protection and current rectifying and wave filtering circuit by the normally opened contact of relay K; the number of turn of automatic switchover power taking coil is regulated the alternating voltage size of output, and prevent the influence of surge voltage to the back circuit under the protection of TVS-1 and TVS-2.
The course of work of the present utility model is as follows: adopt the coil (similar open type punching current transformer) of detachable crystallite rectangle iron core to obtain the induction AC power from high voltage bus or Voltage Cable Lines Construction; switch winding through winding transfer relay K and be connected to current rectifying and wave filtering circuit; again by the voltage stabilizing of DC/DC voltage-stabilizing switch power source circuit; the output galvanic current is pressed; to corresponding instrument and instrument; perhaps testing circuit power supply, and in each grade circuit, adopt two-way or unidirectional high-power TVS transient voltage suppresser spare to protect its output circuit.When the input exchange signal overtension of induction coil, the comparator circuit control relay closure by the hysteresis winding switches to the less winding of the number of turn, reduces the alternating voltage of input, prevents to damage the rectifying and wave-filtering and the DC/DC translation circuit of back.
The utlity model has advantage and function:
(1) according to bus current size and load condition, the number of turn of automatic switchover power taking coil prevents that input ac voltage is too high, damages the voltage stabilizing circuit of back.
(2) adopt TVS1 and TVS2 diode to absorb surge voltage in AC side.
(3) adopt Schottky rectifier diode SS14 to constitute rectifier bridge, reduce the voltage drop of rectifier bridge, be under smaller bus current situation, the DC/DC translation circuit of back also can operate as normal.
(4) adopt MC34063 in the DC/DC translation circuit, its input voltage range is wide, can both operate as normal from 4-38V, and also cost is low.
(5) whole system adopts SMT Surface Mount technology, and volume is little, satisfies the requirement of hyperbaric environment.
(6) the working voltage rate range is wide, owing to there is not secondary side, as long as satisfy the safe insulation distance,, can use to the superhigh pressure electric power system from low-pressure system.
In the utility model, the high pressure rectangular bus bar passes through from the centre of rectangle iron core, whole electricity getting device does not have secondary ground connection and Insulation Problems, entire circuit ground reference and high voltage bus are formed the equipotential body, there are not insulation and breakdown problem, and as long as guarantee that adjacent bus directly can at the safe distance of relevant voltage grade.As long as on the bus certain load current is arranged, the coil on second rectangle iron core just can be responded to certain voltage, and under the little situation of bus load electric current, by the switching of relay K, higher voltage is compared in output.
In the utility model, by four germanium tube SS14 rectification, obtain direct voltage after the filtering, this direct voltage fluctuates very big when the bus current conversion, as long as this voltage conversion between 4V-40V, MC34063 by the back just can obtain stable DC voltage, in order to cooperate the direct voltage of exporting 3.3V, in Fig. 6, choose R3=4.7K Ω with the low pressure reduction voltage stabilizing circuit of linearity of back, R4=2K Ω, W1=1K Ω is in order to finely tune output voltage, to make output voltage about 3.8V, and this voltage is input to NCP699, at the direct voltage of the low Ripple Noise of the output 3.3V of NCP699, supply with corresponding circuit.
In order to guarantee to obtain the upper voltage limit that direct voltage is no more than 38V behind the rectifying and wave-filtering:
1, the ac circuit before rectification and on D1 bi-directional voltage stabilizing pipe, limiting AC voltage is no more than about 25V.
2, the circuit after rectification is by R2 and two-way high-power voltage-stabiliser tube by R2 and two-way high-power voltage-stabiliser tube at circuit after the rectification, and the restriction output voltage is no more than 30V, in case overvoltage damages the MC34063 chip.
3, wherein R1 and C1 are instantaneous surge voltage absorbing circuit.
4, C2, C3, C4, C5 are filter capacitor.
Claims (6)
1. the high voltage bus power taking power supply of a detachable rectangle crystallite iron core, it is characterized in that: first rectangle iron core (1) and second rectangle iron core (2) are oppositely arranged and constitute detachable rectangle crystallite iron core, the gap location that being used to of the left and right sides connects rectangular bus bar is filled with bonded adhesives (7), and described gap location is set with and connects sheath (4), rectangular bus bar (3) is arranged between first rectangle iron core (1) and second rectangle iron core (2), second rectangle iron core (2) is provided with secondary power taking coil (5), the high pressure tap (11) of secondary power taking coil (5), after tap (12) of middle pressure and low pressure tap (13) are switched by winding transfer relay K, be connected with rectification filtering voltage stabilizing circuit (6), the material of first rectangle iron core (1) and second rectangle iron core (2) is a ultramicro-crystal alloy.
2. the high voltage bus power taking power supply of detachable rectangle crystallite iron core as claimed in claim 1 is characterized in that: rectification filtering voltage stabilizing circuit (6) adds DC/DC conversion voltage stabilizing circuit for rectifying and wave-filtering.
3. the high voltage bus power taking power supply of detachable rectangle crystallite iron core as claimed in claim 2 is characterized in that: winding transfer relay K and rectifying and wave-filtering add and are parallel with great power bidirectional TVS Transient Voltage Suppressor-TVS-1, TVS-2 between DC/DC conversion voltage stabilizing circuit.
4. as the high voltage bus power taking power supply of claim 2 or 3 described detachable rectangle crystallite iron cores, it is characterized in that: the output at current rectifying and wave filtering circuit is provided with high-power unidirectional TVS transient voltage suppresser spare.
5. as the high voltage bus power taking power supply of claim 2 or 3 described detachable rectangle crystallite iron cores, it is characterized in that: the output at the DC/DC translation circuit is provided with high-power unidirectional TVS transient voltage suppresser spare.
6. the high voltage bus power taking power supply of detachable rectangle crystallite iron core as claimed in claim 4 is characterized in that: the output at the DC/DC translation circuit is provided with high-power unidirectional TVS transient voltage suppresser spare sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201635586U CN201478886U (en) | 2009-07-06 | 2009-07-06 | High-voltage bus-bar electricity-obtaining power supply with splittable rectangular minicrystal iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201635586U CN201478886U (en) | 2009-07-06 | 2009-07-06 | High-voltage bus-bar electricity-obtaining power supply with splittable rectangular minicrystal iron core |
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| Publication Number | Publication Date |
|---|---|
| CN201478886U true CN201478886U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201635586U Expired - Fee Related CN201478886U (en) | 2009-07-06 | 2009-07-06 | High-voltage bus-bar electricity-obtaining power supply with splittable rectangular minicrystal iron core |
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| CN (1) | CN201478886U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904697A (en) * | 2014-04-28 | 2014-07-02 | 国家电网公司 | Power draw-out method for electric transmission line |
| CN106059119A (en) * | 2016-06-13 | 2016-10-26 | 国网山东省电力公司滨州供电公司 | 10kV (Kilovolt) power unit of high voltage side of electronic current transformer |
| JP2018170838A (en) * | 2017-03-29 | 2018-11-01 | 富士通株式会社 | Power receiver, power transmission system, and control method for power receiver |
| CN109791834A (en) * | 2016-09-29 | 2019-05-21 | Sht有限公司 | The manufacturing method of core component, the core with gap, current sensor and the core with gap |
-
2009
- 2009-07-06 CN CN2009201635586U patent/CN201478886U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904697A (en) * | 2014-04-28 | 2014-07-02 | 国家电网公司 | Power draw-out method for electric transmission line |
| CN106059119A (en) * | 2016-06-13 | 2016-10-26 | 国网山东省电力公司滨州供电公司 | 10kV (Kilovolt) power unit of high voltage side of electronic current transformer |
| CN109791834A (en) * | 2016-09-29 | 2019-05-21 | Sht有限公司 | The manufacturing method of core component, the core with gap, current sensor and the core with gap |
| CN109791834B (en) * | 2016-09-29 | 2022-03-01 | Sht有限公司 | Core member, core with void, current sensor, and method for manufacturing core with void |
| JP2018170838A (en) * | 2017-03-29 | 2018-11-01 | 富士通株式会社 | Power receiver, power transmission system, and control method for power receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20100519 Termination date: 20170706 |