CN202050165U - Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance - Google Patents
Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance Download PDFInfo
- Publication number
- CN202050165U CN202050165U CN2011201722168U CN201120172216U CN202050165U CN 202050165 U CN202050165 U CN 202050165U CN 2011201722168 U CN2011201722168 U CN 2011201722168U CN 201120172216 U CN201120172216 U CN 201120172216U CN 202050165 U CN202050165 U CN 202050165U
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- loop
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- travel switch
- auxiliary relay
- control circuit
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Abstract
The utility model relates to a control circuit for a vacuum contactor or a vacuum contactor and fuse combined appliance, which is characterized in that a closing action circuit, a closing start circuit, an opening circuit and an auxiliary contact circuit are connected in parallel. The control circuit has the advantages that closing, holding and opening of the vacuum contactor are realized by the aid of a closing coil, a holding coil and an opening coil. A mechanical holding type control circuit with a base plate, a mechanical holding type control circuit without the base plate, an electric holding type control circuit with the base plate and an electric holding type control circuit without the base plate can be derived from the control circuit, problems that conventional control circuits with much electric elements are unstable in work and easy to be interfered are solved, and the control circuit is easy to be expanded, compact in installation, small in space occupation and is electricity-saving.
Description
Technical field
The utility model relates to a kind of vacuum contactor, vacuum contactor-fuse combined electric apparatus control circuit, belong to the design and fabrication technology field of medium voltage switchgear equipment.
Background technology
At present in the high-voltage electrical apparatus technical field, the used control circuit of high-pressure vacuum contactor or vacuum contactor-fuse combined electric apparatus is all assembled by coil, relay, ancillary coil, sensitive switch etc., function singleness, the folding number of times is few, misoperation easily, the properties of product less stable, the degree of product standardization is low.
Summary of the invention
The utility model proposes a kind of vacuum contactor, vacuum contactor-fuse combined electric apparatus control circuit, its purpose is to overcome above-mentioned defective, can directly be disposed at vacuum contactor or withdrawable vacuum contactor-fuse combined electric apparatus.Has the standardization level height, characteristics such as reliability height, handled easily and maintenance.
Technical solution of the present utility model: it is characterized in that by the feed motion loop, close a floodgate and start the loop, sub-gate circuit and auxiliary contact loop are connected in parallel, the ac input end of A rectifier bridge is received by normal battle of two series connection of auxiliary relay in described feed motion loop, the commutation circuit of auxiliary relay and travel switch (S3) composition is parallel to the input of A rectifier bridge simultaneously, the output of A rectifier bridge is connected in the two ends of the series circuit of being made up of closing coil and hold-in winding, counter is parallel to the closing coil two ends, two normally opened contacts of auxiliary relay are parallel to combined floodgate hold-in winding two ends, thereby have finished the feed motion of coil; Described combined floodgate starts the loop and connects with normally closed point, the normally closed point of auxiliary relay, the normally closed point of sensitive switch, auxiliary relay coil one end of travel switch successively by after travel switch and the travel switch parallel connection, the other end of auxiliary relay coil is connected with the other end that close a floodgate to start the loop, simultaneously by the normal anti-jump loop that is composed in series of battle, travel switch and auxiliary relay and in the startup two ends, loop of closing a floodgate of auxiliary relay; Sub-gate circuit is by the two ends that are connected to the B rectifier bridge normal battle of travel switch, and the output of B rectifier bridge is directly connected in the two ends of switching winding; Often made war by 1 group of sensitive switch in the auxiliary contact loop, 4 groups of travel switch often leave, the corresponding connection between 5 groups of normally closed switchs, travel switch.
Advantage of the present utility model: solved in the past the circuit control loop and used electric component many, job insecurity is subject to disturb, and this loop is easy to expansion, install compactness take up room little, power saving.Be furnished with anti-trip relay K3 in the product circuit, when misoperation or error signal put on closing circuit, sub-gate circuit can normally divide deenergizing.Filter capacitor C can filter the high-frequency signal in the circuit, makes outputting current steadily, has improved the stability of closing a floodgate.Circuit can derive as requested joins chassis vehicle and no chassis vehicle, has mechanical maintenance that electric maintenance is also arranged, and has the dc operation type that the alternating current operation type is also arranged, adaptability degree height, and the product circuit element is few, has reduced misoperation.The product element mainly concentrates on the vacuum contactor base plate and makes things convenient for operation and maintenance etc.So manual node complete function is arranged in the circuit.The high-pressure vacuum contactor that is assembled into can use separately, the handcart-type structure contactor-fuse combined electric apparatus that is assembled into, the intermediate switchgear cabinet of the supporting most of producers of energy.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
Contrast accompanying drawing 1, its structure is by the feed motion loop, close a floodgate and start the loop, sub-gate circuit and auxiliary contact loop are connected in parallel, described feed motion loop is by auxiliary relay K2) normal battle of two series connection receive the ac input ends of A rectifier bridge, the commutation circuit of auxiliary relay (K1) and travel switch (S3) composition is parallel to the input of A rectifier bridge simultaneously, the output of A rectifier bridge is connected in the two ends of the series circuit of being made up of closing coil (YC) and hold-in winding (YB), counter (JS) is parallel to closing coil (YC) two ends, two normally opened contacts of auxiliary relay (K1) are parallel to combined floodgate hold-in winding (YB) two ends, thereby have finished the feed motion of coil; Described combined floodgate starts the loop and connects with normally closed point, the normally closed point of auxiliary relay (K3), the normally closed point of sensitive switch (S7), auxiliary relay (K2) coil one end of travel switch (S3) successively by after travel switch (S8) and travel switch (S9) parallel connection, the other end of auxiliary relay (K2) coil is connected with the other end that close a floodgate to start the loop, simultaneously by auxiliary relay (K2) is often made war, travel switch (S3) and auxiliary relay (K3) are composed in series anti-jump loop and in combined floodgate startup two ends, loop; Sub-gate circuit is by the two ends that are connected to the B rectifier bridge normal battle of travel switch (S3), and the output of B rectifier bridge is directly connected in the two ends of switching winding (YO); Often made war by 1 group of sensitive switch (S7) in the auxiliary contact loop, 4 groups of travel switch (S3) often leave, the corresponding connection between 5 groups of normally closed switchs (S8), travel switch (S9).
Closing coil and combined floodgate hold-in winding link together by the mode of outer lead with serial or parallel connection, closing coil and hold-in winding move together during combined floodgate, and the closing coil that breaks during maintenance has only hold-in winding charged, can guarantee that combined electrical apparatus is in closing position this moment, and it is little to consume energy.The hold-in winding that breaks is promptly finished separating brake.
When pressing switch knob SC, auxiliary relay K2, K3 moment starts for mechanical maintenance, K2 normally opened contact closure in the closing circuit, and K1 connects, closing coil moment connection.Make on vacuum contactor or the contactor-fuse combined electric apparatus on the drive plate hook and floor upper latch notch card and and realize the machinery maintenance, because it is to finish moment that mechanical holding circuit is connected, so when link up with in the bayonet socket card and after, control circuit outage, main circuit is by the machinery card and and connect.When needs disconnect main circuit, press opening button SO, switching winding YO connects, and switching winding relies on its electromagnetic force drive mechanism to make the card of hook and bayonet socket and separates the disconnection of realization main circuit.There are S8, S9 travel switch to be used for control contactor in the car circuit of chassis or can the divide-shut brake of combined electrical apparatus in test position or service position carry out for joining.
Design has the anti-rebound function in the circuit, and when " wiring board FT " short circuit, auxiliary relay K3 is equivalent to anti-readjustment relay, and when pressing switch knob SO, the K3 coil is connected, and the K3 normally-closed contact disconnects in the closing circuit, makes the rigid disjunction of closing circuit.HD, LB indicator light are arranged in the indication loop in the circuit, be used to indicate main circuit to be in closure or fragmentation state.Whether S7 fuse travel switch is used for indicating fuse and fuses, when the BD lamp is bright, and expression fuse blows, main circuit disjunction.Rectification design is arranged, if directly insert direct current then special design circuit is arranged in the circuit.The electronic counter design is used to calculate the combined floodgate number of times in the feed motion circuit.
Operating voltage is 220V or 110V alterating and direct current, by closing coil, hold-in winding, switching winding and inner self-locking, chain circuit realize vacuum contactor closure, keep, cut-off.And there are the manual abnormal conditions that reach to cut-off function automatically.This circuit can derive machinery and keep joining the chassis vehicle, and machinery keeps no chassis vehicle, and electricity keeps joining the chassis vehicle, and electricity keeps no chassis vehicle.
Claims (1)
1. vacuum contactor, vacuum contactor-fuse combined electric apparatus control circuit, it is characterized in that by the feed motion loop, close a floodgate and start the loop, sub-gate circuit and auxiliary contact loop are connected in parallel, the ac input end of A rectifier bridge is received by normal battle of two series connection of auxiliary relay (K2) in described feed motion loop, the commutation circuit of auxiliary relay (K1) and travel switch (S3) composition is parallel to the input of A rectifier bridge simultaneously, the output of A rectifier bridge is connected in the two ends of the series circuit of being made up of closing coil (YC) and hold-in winding (YB), counter (JS) is parallel to closing coil (YC) two ends, two normally opened contacts of auxiliary relay (K1) are parallel to combined floodgate hold-in winding (YB) two ends, thereby have finished the feed motion of coil; Described combined floodgate starts the loop and connects with normally closed point, the normally closed point of auxiliary relay (K3), the normally closed point of sensitive switch (S7), auxiliary relay (K2) coil one end of travel switch (S3) successively by after travel switch (S8) and travel switch (S9) parallel connection, the other end of auxiliary relay (K2) coil is connected with the other end that close a floodgate to start the loop, simultaneously by auxiliary relay (K2) is often made war, travel switch (S3) and auxiliary relay (K3) are composed in series anti-jump loop and in combined floodgate startup two ends, loop; Sub-gate circuit is by the two ends that are connected to the B rectifier bridge normal battle of travel switch (S3), and the output of B rectifier bridge is directly connected in the two ends of switching winding (YO); Often made war by 1 group of sensitive switch (S7) in the auxiliary contact loop, 4 groups of travel switch (S3) often leave, the corresponding connection between 5 groups of normally closed switchs (S8), travel switch (S9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201722168U CN202050165U (en) | 2011-05-26 | 2011-05-26 | Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201722168U CN202050165U (en) | 2011-05-26 | 2011-05-26 | Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202050165U true CN202050165U (en) | 2011-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201722168U Expired - Fee Related CN202050165U (en) | 2011-05-26 | 2011-05-26 | Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202050165U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552763A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electric switch-off method for earthing switch of multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105655909A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electric coming in and out control method of multifunctional proofing and grounding cart of centrally installed switchgear |
| CN105655911A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655908A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655910A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electricity-testing and grounding circuit of multifunctional electricity-testing and grounding cart with central cabinet |
-
2011
- 2011-05-26 CN CN2011201722168U patent/CN202050165U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552763A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electric switch-off method for earthing switch of multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552760A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Cabinet-in/out control circuit for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552762A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Cabinet-incoming, electricity-verification and grounding control method for electricity-verification and grounding trolley |
| CN105552765A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electric cabinet-incoming method for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552768A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electricity-verification and grounding operation method for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552769A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Control circuit for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105576543A (en) * | 2014-07-18 | 2016-05-11 | 国家电网公司 | Electric cabinet-out and earthing switch electric opening control method of electrical-inspection earthing trolley |
| CN105576544A (en) * | 2014-07-18 | 2016-05-11 | 国家电网公司 | Electrical-inspection earthing and earthing switch electric opening control method of electrical-inspection earthing trolley |
| CN105655909A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electric coming in and out control method of multifunctional proofing and grounding cart of centrally installed switchgear |
| CN105655911A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655908A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655910A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electricity-testing and grounding circuit of multifunctional electricity-testing and grounding cart with central cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20140526 |