CN214123820U - Turbine 10kV bus protection structure of compressed air energy storage power station - Google Patents
Turbine 10kV bus protection structure of compressed air energy storage power station Download PDFInfo
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- CN214123820U CN214123820U CN202023293289.0U CN202023293289U CN214123820U CN 214123820 U CN214123820 U CN 214123820U CN 202023293289 U CN202023293289 U CN 202023293289U CN 214123820 U CN214123820 U CN 214123820U
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- electromagnetic coil
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Abstract
The utility model provides a turbine 10kV generating line protection architecture of compressed air energy storage power station. The electromagnetic switch comprises an insulating shell, wherein thread threading terminals are respectively arranged on two sides of the inside of the insulating shell, each thread threading terminal is connected with one static contact, a movable contact is arranged above each static contact, the two movable contacts are connected together through a conducting rod, an armature is arranged on the upper side of the conducting rod, a sliding hole is formed in the shell corresponding to the position of the armature, a manual control switch is installed in the sliding hole, a permanent magnet block is arranged on the lower portion of the conducting rod, a permanent magnet ring is arranged at the position of the sliding hole, an electromagnetic coil is arranged on the lower portion of the permanent magnet block, an upward magnetic pole direction generated after the electromagnetic coil is electrified is the same as the downward magnetic pole direction of the permanent magnet block, and the electromagnetic coil is connected in series with the thread threading terminals. The utility model discloses the cost is comparatively cheap, and the reliable operation.
Description
The technical field is as follows:
the utility model relates to a turbine 10kV generating line protection architecture of compressed air energy storage power station belongs to the energy and power technology field.
Background art:
in a compressed air energy storage power station, due to the asymmetry of load capacity, the load capacity of a bus of a factory compression section is far larger than that of a factory turbine section. Therefore, the short-circuit current of the compression section bus is larger than that of the turbine section bus. The performance requirement of the compression section bus incoming line switch for short-circuit current impact is higher than that of the turbine section bus incoming line switch.
When the compression section bus takes place the short circuit, because of its short-circuit current is too big, the short-circuit current that comes from the transmission of pouring bus can cause short-circuit current to strike to turbine section bus inlet wire switch, if will guarantee turbine section bus inlet wire switch's safety, then should adopt the circuit breaker with compression section bus inlet wire switch isomorph, and compression section bus inlet wire switch generally is generator circuit breaker level circuit breaker. The turbine section bus incoming line switch adopts the circuit breaker that can arouse the unnecessary promotion of cost with the same model of compression section, and the circuit breaker performance also unnecessary greatly surpasss the required performance of this circuit breaker simultaneously.
With satisfying other system short-circuit current of generating transformer group as the standard, directly adopt high performance circuit breaker with the switch wiring mode of traditional power plant, in compressed air energy storage power station, can cause following problem:
1. increased cost
The cost of the incoming line breaker can be greatly improved by adopting a breaker with a higher performance grade, even a generator breaker.
2. Waste of resources
In general, the bus load of the turbine section is far less than that of the compression section. The low-level high-level configuration of the high-performance circuit breaker causes resource waste.
The invention content is as follows:
the utility model aims at the problem that exists provides a turbine 10kV generating line protection architecture in compressed air energy storage power station to the aforesaid, can solve above-mentioned cost rising and the extravagant problem of resource.
The above purpose is realized by the following technical scheme:
a turbine 10kV bus protection structure of a compressed air energy storage power station comprises an insulating shell, wherein two sides inside the insulating shell are respectively provided with a main line threading terminal, each main line threading terminal is connected with a fixed contact, a movable contact is arranged above each fixed contact, the two movable contacts are connected together through a conducting rod, the upper side of the conducting rod is provided with an armature, the shell is provided with a slide hole corresponding to the position of the armature, a manual control switch is arranged inside the slide hole, the lower part of the conducting rod is provided with a permanent magnet block, a permanent magnet ring is arranged in the shell at the position of the slide hole, the lower part of the permanent magnet block inside the shell is provided with an electromagnetic coil, and the upward magnetic pole direction generated after the electromagnetic coil is electrified is the same as the downward magnetic pole direction of the permanent magnet block, the electromagnetic coil is connected in series to the main wire threading terminal.
The turbine 10kV generating line protection architecture of compressed air energy storage power station, manual control switch include with the litter that armature is connected, litter upper portion stretch out the casing connect the handle.
In the turbine 10kV bus protection structure of the compressed air energy storage power station, the repulsive force of the magnetic force generated after the electromagnetic coil is electrified in a normal over-current state to the permanent magnet block is 0.8-0.9 time of the sum of the gravity of the conductive rod, the armature and the permanent magnet block.
Has the advantages that:
1. the utility model connects two movable contacts through a conducting rod, under the normal over-current condition, because the sum of the gravity of the conducting rod and the armature iron and the permanent magnet block which are arranged on the conducting rod is larger than the repulsion force of the magnetic force generated under the condition that the electromagnetic coil is electrified to the permanent magnet block, the movable contact point and the fixed contact point are in contact closure under the action of the gravity, when the main circuit is overloaded or short-circuited, the current in the main circuit is increased instantly, so that the magnetic force generated by the electromagnetic coil is increased instantly, the repulsive force to the permanent magnet is increased, the permanent magnet drives the conducting rod to move upwards, meanwhile, the armature is attracted by the permanent magnet ring at the upper part, so that the armature is adsorbed on the permanent magnet ring, the movable contact is separated from the fixed contact, the circuit is cut off, play power-off protection's effect to the load on the main line, effectively ensured main line safety, and the utility model discloses simple structure is with low costs.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an insulating housing; 2. a threading terminal; 3. a stationary contact; 4. a movable contact; 5. a conductive rod; 6. an armature; 7. a slide hole; 8. permanent magnet blocks; 9. a permanent magnet ring; 10. an electromagnetic coil; 11. a slide rod; 12. a handle.
The specific implementation mode is as follows:
example 1:
as shown in fig. 1: the 10kV turbine bus protection structure of the compressed air energy storage power station comprises an insulating shell 1, two sides of the inside of the insulating shell are respectively provided with a main line threading terminal 2, each main line threading terminal is connected with a fixed contact 3, a movable contact 4 is arranged above each fixed contact and is connected with the two movable contacts through a conductive rod 5, the upper side of the conductive rod is provided with an armature 6, the position of the shell corresponding to the armature is provided with a slide hole 7, a manual control switch is arranged in the slide hole, the lower part of the conductive rod is provided with a permanent magnet block 8, a permanent magnet ring 9 is arranged at the slide hole in the shell, an electromagnetic coil 10 is arranged at the lower part of the permanent magnet block in the shell, the upward magnetic pole direction generated after the electromagnetic coil is electrified is the same as the downward magnetic pole direction of the permanent magnet block, the electromagnetic coil is connected in series to the main wire threading terminal.
In the protection structure for the turbine 10kV bus of the compressed air energy storage power station in this embodiment, the manual control switch includes a slide rod 11 connected to the armature, and the upper portion of the slide rod extends out of the shell connecting handle 12.
In the turbine 10kV bus protection structure of the compressed air energy storage power station in the embodiment, the repulsive force of the magnetic force generated after the electromagnetic coil is electrified in a normal over-current state to the permanent magnet block is 0.8-0.9 times of the sum of the gravity of the conductive rod, the armature and the permanent magnet block.
The working principle is as follows:
adopt above-mentioned scheme, the utility model discloses a theory of operation is: under the normal over-current condition, because conducting rod and the armature of setting on the conducting rod, the gravity sum of permanent magnet piece is greater than the repulsion force of the magnetic force that produces to the permanent magnet piece under the solenoid circular telegram circumstances, consequently, receive the effect of gravity, movable contact and stationary contact point contact closure, under the state of overloading or short circuit in the main line, electric current in the main line increases in the twinkling of an eye, make the magnetic force that solenoid produced increase in the twinkling of an eye, the repulsion force to the permanent magnet piece increases, the permanent magnet piece drives the conducting rod upward movement, armature receives the attraction of the permanent magnet ring on upper portion simultaneously and makes armature adsorb on the permanent magnet ring, the movable contact has come off the stationary contact, the circuit cuts off the power supply, play power-off protection's effect to the load on the main line, main line safety has effectively been ensured, and the utility model discloses simple structure is with low costs. When the power is needed to be manually cut off, the handle is grasped to pull up the conducting rod, so that the conducting rod is attracted to the permanent magnet ring through the armature.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme consisting of the equivalent replacement of the technical features. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.
Claims (3)
1. The utility model provides a turbine 10kV generating line protection architecture in compressed air energy storage power station which characterized by: comprises an insulating shell, wherein two sides in the insulating shell are respectively provided with a main line threading terminal, each main line threading terminal is connected with a static contact, a movable contact is arranged above each static contact correspondingly, the two movable contacts are connected together through a conducting rod, an armature is arranged on the upper side of the conducting rod, a sliding hole is arranged on the shell corresponding to the position of the armature, a manual control switch is arranged in the sliding hole, a permanent magnet block is arranged at the lower part of the conducting rod, the electromagnetic wire drawing device is characterized in that a permanent magnet ring is arranged at the position, located in the sliding hole, in the shell, an electromagnetic coil is arranged at the lower portion, located in the permanent magnet block, in the shell, the upward magnetic pole direction generated after the electromagnetic coil is electrified is the same as the downward magnetic pole direction of the permanent magnet block, and the electromagnetic coil is connected to the main wire threading terminal in series.
2. The turbine 10kV bus protection architecture of compressed air energy storage power station of claim 1, characterized in that: the manual control switch comprises a sliding rod connected with the armature, and the upper part of the sliding rod extends out of the shell and is connected with a handle.
3. The turbine 10kV bus protection architecture of compressed air energy storage power station of claim 1, characterized in that: under the normal over-current state, the repulsion force of the magnetic force generated after the electromagnetic coil is electrified to the permanent magnet block is 0.8-0.9 time of the sum of the gravity of the conducting rod, the armature and the permanent magnet block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023293289.0U CN214123820U (en) | 2020-12-31 | 2020-12-31 | Turbine 10kV bus protection structure of compressed air energy storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023293289.0U CN214123820U (en) | 2020-12-31 | 2020-12-31 | Turbine 10kV bus protection structure of compressed air energy storage power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214123820U true CN214123820U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023293289.0U Active CN214123820U (en) | 2020-12-31 | 2020-12-31 | Turbine 10kV bus protection structure of compressed air energy storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214123820U (en) |
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2020
- 2020-12-31 CN CN202023293289.0U patent/CN214123820U/en active Active
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