CN201398072Y - High capacity overvoltage protector - Google Patents
High capacity overvoltage protector Download PDFInfo
- Publication number
- CN201398072Y CN201398072Y CN2009200329776U CN200920032977U CN201398072Y CN 201398072 Y CN201398072 Y CN 201398072Y CN 2009200329776 U CN2009200329776 U CN 2009200329776U CN 200920032977 U CN200920032977 U CN 200920032977U CN 201398072 Y CN201398072 Y CN 201398072Y
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Abstract
The utility model discloses a high capacity overvoltage protector. A1 is sequentially connected with a pressure conducting circuit A2 and a nonlinear resistance circuit A3 in series. B1 is sequentially connected with a pressure conducting circuit B2 and a nonlinear resistance circuit B3 in series. C1 is sequentially connected with a pressure conducting circuit C2 and a nonlinear resistance circuitC3 in series. The other ends of the circuits A3, B3, C3 are connected with a shared capacity absorbing circuit E in parallel. The other end of the shared capacity absorbing circuit E is sequentiallyconnected with a capacity storage circuit F and a ground circuit G. The high capacity overvoltage protector has simple structure, wide protection scope, high capacity, good absorption ability, high through flow capacity and low residual voltage, can be automatically intervened, has no pollution to the environment, integrates the environmental protection, belongs to the product of energy saving andenvironmental protection, can be widely used in the state grid construction and various power equipment protection, in particular to generators, motors, transformers, reactors, circuits and the like,and has high absorption capacity which is 3 to 10 times greater than the equivalent product.
Description
Technical field
The utility model relates to the electric equipment protection device, is specifically related to a kind of novel high-capacity overvoltage protection device.
Background technology
Lightning arrester and overvoltage protection device are the equipment that topmost anti-thunder and lightning overvoltage reaches anti-switching overvoltage protection in the present power system device; complicated, diversified according to present power grid construction and operating position; it is little that lightning arrester and common overvoltage protection device exist protection range in actual applications; the cost height; absorptive capacity is little; operational efficiency is low; easily cause because of the overvoltage protection device self-capacity little; it is little and accident blast takes place to absorb energy, exists simultaneously because of the protector body and damages the defective that can't protect protected power equipment.
Summary of the invention
Goal of the invention of the present utility model provides a kind of simple in structure; protection range is wide; the capacity height; absorbability is good, and discharge capacity is big, and residual voltage is low; life-span is long; automatically get involved when overvoltage appears in system, environmentally safe is really realized a kind of novel high-capacity overvoltage protection device of energy savings, environment protection.
In order to overcome the deficiencies in the prior art, the technical solution of the utility model is to solve like this: a kind of novel high-capacity overvoltage protection device, comprise A, B, C three-phase high-voltage wire line, its special character is the above-mentioned A phase high-voltage conducting wires circuit pressure conducting channel that is connected in series, the pressure conducting channel nonlinear resistive network that is connected in series; The above-mentioned B phase high-voltage conducting wires circuit pressure conducting channel that is connected in series, the pressure conducting channel nonlinear resistive network that is connected in series; The C phase high-voltage conducting wires circuit pressure conducting channel that is connected in series, the pressure conducting channel nonlinear resistive network that is connected in series; Above-mentioned nonlinear resistive network, nonlinear resistive network, the nonlinear resistive network other end shared capacity that is connected in parallel absorbs circuit, shared capacity absorbs the circuit other end capacity storage circuit that is connected in series, the capacity storage circuit other end earthed circuit that is connected in series, the earthed circuit other end and the earth connect to form capacity and discharge circuit.
The utility model is compared with prior art, and is simple in structure, and protection range is wide, the capacity height, and absorbability is good, and discharge capacity is big, and residual voltage is low, and the life-span is long, gets involved automatically when overvoltage appears in system, and environmentally safe is really realized energy savings, environment protection.Core is when the electric power system operate as normal; protector is failure to actuate and is stayed out of; when abnormal overvoltage appears in system voltage; protector is got involved automatically; make protected equipment in the shortest time, finish the purpose that protected equipment is protected with opening circuit, when system voltage just often this protector withdraw from automatically.Because of the core component of protector is the response speed that material that non-linear resistor adopts has nanosecond; under normal operation; the high-impedance state that presents mega-ohms; make the loop current of novel high-capacity overvoltage protection device minimum; play and the electrical network buffer action, and under system's overvoltage effect, be converted into tens low resistance states rapidly to hundreds of ohm; make the overvoltage protection device automatic immediate insert electrical network, play a protective role.Really realized energy savings, automation, environment protection has reduced national grid construction and the electricity consumption enterprise update cost expenditure to equipment.Advantage of the present utility model is to install simple, and protection range is wide, the capacity height; absorbability is big, and discharge capacity is big, and residual voltage is low; automation, cost is low, reaches a kind of novel high-capacity overvoltage protection device of protection power equipment or circuit with the method for high absorptive capacity.Its capacity absorbability is greater than 3～10 times of present like products.
Description of drawings
Fig. 1 is the utility model 6-10KV master TV structure schematic block diagram;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the utility model 35KV master TV structure schematic block diagram;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is a circuit structure signal theory diagram of the present utility model;
Fig. 6 is an electrical schematic diagram.
Embodiment
Accompanying drawing is embodiment of the present utility model.
Below in conjunction with accompanying drawing summary of the invention is described further:
Shown in Fig. 1～6, a kind of novel high-capacity overvoltage protection device, comprise A, B, C three-phase high-voltage wire line, the above-mentioned A phase high-voltage conducting wires circuit A1 pressure conducting channel A2 that is connected in series, the pressure conducting channel A2 nonlinear resistive network A3 that is connected in series; The above-mentioned B phase high-voltage conducting wires circuit B1 pressure conducting channel B2 that is connected in series, the pressure conducting channel B2 nonlinear resistive network B3 that is connected in series; The C phase high-voltage conducting wires circuit C1 pressure conducting channel C2 that is connected in series, the pressure conducting channel C2 above-mentioned nonlinear resistive network A3 of nonlinear resistive network C3, nonlinear resistive network B3, a nonlinear resistive network C3 other end shared capacity that is connected in parallel that is connected in series absorbs circuit E, shared capacity absorbs the circuit E other end capacity storage circuit F that is connected in series, the capacity storage circuit F other end earthed circuit G that is connected in series, the earthed circuit G other end and the earth D connect to form capacity and discharge circuit.
Above-mentioned high-voltage conducting wires circuit is high performance insulation sheath, (material of High Performance Insulation crust is an electrically insulating silicone rubber, more than the withstand voltage 50KV of insulating properties), and inner core is a copper wire.
Above-mentioned pressure conducting channel is one and compresses stage clip and copper sheet connects to form, (copper sheet is wrapped on the stage clip).
Above-mentioned nonlinear resistive network is connected in series by at least two zinc oxide resistance sheets and forms.
Above-mentioned capacity absorption circuit is connected in parallel by three capacitors at least and forms.
Above-mentioned capacity storage circuit is connected to form by two capacitors in series at least.
Above-mentioned earthed circuit connects to form with copper cash and screw rod.
High-voltage conducting wires circuit A1, B1, C1 are used for A2, B2, the C2 conducting that is connected with system equipment A, B, C; A2, B2, C2 belong to and compress and for A1, B1, C1 and A3, B3, C3 electric installation; A3, B3, C3 get involved and absorb the energy of overvoltage part automatically when system's overvoltage; capacity absorbs circuit E and is the may command capacity and transfers to capacity storage circuit F in the Conversion of energy that A3, B3, C3 absorb when getting involved work; capacity storage circuit F is released into ground D through earthed circuit G with capacity, thereby realizes the defencive function of power equipment when system's overvoltage.
In sum; wherein nonlinear resistive network A3, B3, C3 sample to protected equipment system for use in carrying voltage in real time, absorb circuit E, capacity storage circuit F by shared capacity again; earthed circuit G forms the power-frequency discharge circuit, realizes the reliably protecting to equipment.
ABC is a circuit on power system, and H is protected equipment, and A1, B1, C1 are high-voltage conducting wires, and this lead has high performance insulation sheath, and inner core is 10
2Copper wire.A2, B2, C2 are the pressure power springs, and its structure is stage clip and copper sheet, have to compress and conducting function.A3, B3, C3 are nonlinear resistances, are to be in series through parameter configuration by the multi-disc zinc oxide resistance sheet.Capacitor E is that a plurality of capacitors composition capacity that is connected in parallel absorbs electric capacity, and its effect is the overvoltage capacity that comes of absorption resistance circuit transmission and passes to capacity storage electric capacity F.Its structure of capacity storage electric capacity F is made up of capacitors in series, and its effect is that storage absorbs the overvoltage capacity that the circuit transfer is come through capacity.Earth lead and port G are made up of copper cash and screw rod, and effect is that the capacity that connection capacity memory circuit and ground wire (D or greatly) are finished the overvoltage part discharges.
In sum, wherein nonlinear resistive network A3, B3, C3 sample to protected equipment system for use in carrying voltage in real time, absorb circuit E by shared capacity again, capacity storage circuit F, and earthed circuit G forms the power-frequency discharge circuit, realizes the reliably protecting to equipment
Claims (7)
1, a kind of high power capacity overvoltage protection device, comprise A, B, C three-phase high-voltage wire line, it is characterized in that above-mentioned A phase high-voltage conducting wires circuit (A1) the pressure conducting channel (A2) that is connected in series, pressure conducting channel (A2) nonlinear resistive network (A3) that is connected in series; Above-mentioned B phase high-voltage conducting wires circuit (B1) the pressure conducting channel (B2) that is connected in series, pressure conducting channel (B2) nonlinear resistive network (B3) that is connected in series; C phase high-voltage conducting wires circuit (C1) the pressure conducting channel (C2) that is connected in series, pressure conducting channel (C2) nonlinear resistive network (C3) that is connected in series; Above-mentioned nonlinear resistive network (A3), nonlinear resistive network (B3), nonlinear resistive network (C3) the other end shared capacity that is connected in parallel absorbs circuit (E), shared capacity absorbs circuit (E) other end capacity storage circuit (F) that is connected in series, capacity storage circuit (F) other end earthed circuit (G) that is connected in series, earthed circuit (G) other end and the earth (D) connect to form capacity and discharge circuit.
2, according to the described high power capacity overvoltage protection device of claim 1, it is characterized in that above-mentioned high-voltage conducting wires circuit is high performance insulation sheath, inner core is a copper wire.
3,, it is characterized in that above-mentioned pressure conducting channel is one and compresses stage clip and copper sheet connects to form according to the described high power capacity overvoltage protection device of claim 1.
4,, it is characterized in that above-mentioned nonlinear resistive network is connected in series by at least two zinc oxide resistance sheets to form according to the described high power capacity overvoltage protection device of claim 1.
5,, it is characterized in that above-mentioned capacity absorbs circuit and is connected in parallel by three capacitors at least and forms according to the described high power capacity overvoltage protection device of claim 1.
6,, it is characterized in that above-mentioned capacity storage circuit is connected to form by two capacitors in series at least according to the described high power capacity overvoltage protection device of claim 1.
7,, it is characterized in that above-mentioned earthed circuit connects to form with copper cash and screw rod according to the described high power capacity overvoltage protection device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200329776U CN201398072Y (en) | 2009-05-06 | 2009-05-06 | High capacity overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200329776U CN201398072Y (en) | 2009-05-06 | 2009-05-06 | High capacity overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201398072Y true CN201398072Y (en) | 2010-02-03 |
Family
ID=41620602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200329776U Expired - Fee Related CN201398072Y (en) | 2009-05-06 | 2009-05-06 | High capacity overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201398072Y (en) |
-
2009
- 2009-05-06 CN CN2009200329776U patent/CN201398072Y/en not_active Expired - Fee Related
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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 |
Granted publication date: 20100203 Termination date: 20150506 |
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| EXPY | Termination of patent right or utility model |