CN215343907U - On-load automatic voltage regulation tap switch for arc suppression coil - Google Patents
On-load automatic voltage regulation tap switch for arc suppression coil Download PDFInfo
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- CN215343907U CN215343907U CN202121283968.1U CN202121283968U CN215343907U CN 215343907 U CN215343907 U CN 215343907U CN 202121283968 U CN202121283968 U CN 202121283968U CN 215343907 U CN215343907 U CN 215343907U
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Abstract
The utility model discloses an arc suppression coil on-load automatic voltage regulation tap switch, which comprises a selector switch, a tap selector, an energy storage mechanism, a reduction gearbox and an electrical control part, wherein the electrical control part comprises an electrical control circuit and an external controller, the controller is electrically connected with the electrical control circuit, and the electrical control circuit comprises a main loop, a control loop, a gear connection protection loop, a counting loop, a power indicator lamp loop, a limit device loop and a switching protection loop; in general, the utility model has the advantages of automatic operation and high safety.
Description
Technical Field
The utility model relates to a tap switch, in particular to an arc suppression coil on-load automatic voltage regulation tap switch.
Background
The effect of arc suppression coil is after single-phase earth fault takes place for the electric wire netting, the fault point flows through the electric capacity current, arc suppression coil provides the inductive current and compensates, make the fault point current fall to below 10A, be favorable to preventing the reignition after the arc light zero passage, reach the purpose of arc extinction, reduce the probability that high amplitude overvoltage appears, prevent that the accident from further expanding, current arc suppression coil adopts on-load tap changer to adjust usually, the realization is to the effective regulation of arc suppression coil's the access turn in the distribution network, and current tap changer only manual operation mechanism when using, can not realize automatic rising downshift, it is very inconvenient to use.
Therefore, in order to solve the above problems, it is necessary to develop an arc suppression coil on-load automatic voltage regulation tap switch.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides an arc suppression coil on-load automatic voltage regulation tap switch which can control a motor to realize automatic up-down shifting under the condition of constant speed, can be manually operated under the condition of no power supply, can be automatically and intelligently operated, can be remotely operated, and can ensure the safety of power utilization.
The purpose of the utility model is realized as follows: the utility model provides an arc suppression coil has automatic voltage regulation tap switch of carrying, includes change over switch, tapping selector, energy storage mechanism and reducing gear box, still includes the electrical control part, the electrical control part includes electrical control circuit and external controller, controller electric connection electrical control circuit, wherein, electrical control circuit includes main loop, control circuit, links a shelves protection circuit, count return circuit, power indicator lamp return circuit, limit device return circuit and switching protection return circuit, the main loop includes inlet wire power L1, motor protection switch Q, motor M, ac contactor KM3, ac contactor KM2, ac contactor KM1 and electric capacity C, electric M's three wiring end difference electric capacity C's both ends D1 and D2 and N wiring end, electric capacity C's D1 end connects ac contactor KM 1's main contact, electric capacity C's D2 end connects ac contactor KM 2's main contact, the other ends of the main contacts KM1 and KM2 are connected with a normally closed auxiliary contact of an alternating current contactor KM3, the other end of the normally closed auxiliary contact of the alternating current contactor KM3 is connected with a normally open contact of a motor protection switch Q, and the other end of the normally open contact of the motor protection switch Q is connected with an incoming line power supply L1; the control circuit comprises a normally open button 1SB, a normally open button 2SB, a gear indicator panel ZS1, a gear indicator panel ZS2, an alternating current contactor KM1, an alternating current contactor KM2, an alternating current contactor KM3 and a travel switch SXK1, wherein normally open contacts of the motor protection switch Q are respectively connected with the normally open button 1SB, a normally closed end of the travel switch SXK1 and the normally open button 2 SB; the other end of the normally open button 1SB is connected with a gear indicator panel ZS1, the gear indicator panel ZS1 is connected with a coil end of an alternating current contactor KM1, a coil end of the alternating current contactor KM1 is connected with a normally closed auxiliary contact of the alternating current contactor KM2, the other end of the normally closed auxiliary contact of the alternating current contactor KM2 is connected with a normally closed auxiliary contact of the alternating current contactor KM3, and the other end of the normally closed auxiliary contact of the alternating current contactor KM3 is connected with an N terminal; the normally closed end of the travel switch SXK1 is respectively connected with a main contact of an alternating current contactor KM1 and a main contact of an alternating current contactor KM2, the main contact of the alternating current contactor KM1 and the main contact of the alternating current contactor KM2 are respectively connected with a main contact of an alternating current contactor KM3, and the coil end of the alternating current contactor KM3 is connected with an N terminal; the other end of the normally open button 2SB is connected with a gear indicator panel ZS2, the gear indicator panel ZS2 is connected with the coil end of an alternating current contactor KM2, the coil end of the alternating current contactor KM2 is connected with a normally closed auxiliary contact of an alternating current contactor KM1, the normally closed auxiliary contact of the alternating current contactor KM1 is connected with a normally closed auxiliary contact of an alternating current contactor KM3, and the other end of the normally closed auxiliary contact of the alternating current contactor KM3 is connected with an N terminal; the continuous-gear protection circuit comprises a travel switch SXK1, an alternating current contactor KM1, an alternating current contactor KM2 and an alternating current contactor KM3, wherein a normally open contact of a motor protection switch Q is respectively connected with a normally open end of a travel switch SXK1 and a normally open auxiliary contact of an alternating current contactor KM3, a travel switch SXK1 is connected with the alternating current contactor KM3 in parallel, a normally open end of the travel switch SXK1 and a normally open auxiliary contact of an alternating current contactor KM3 are respectively connected with an alternating current contactor KM1 and an alternating current contactor KM2 which are connected in parallel, a normally open end of the travel switch SXK1 and a normally open auxiliary contact of an alternating current contactor KM3 are respectively connected with a main contact of an alternating current contactor KM1 and a main contact of an alternating current contactor KM2, a main contact of the alternating current contactor KM1 and a main contact of the alternating current contactor KM2 are connected with a coil end of an alternating current contactor KM3, and a coil end of an alternating current contactor KM3 is connected with an N terminal; the counting loop comprises an alternating current contactor KM1, an alternating current contactor KM2 and a counter PC, wherein the alternating current contactor KM1 and the alternating current contactor KM2 are connected in parallel, a normally open contact of a motor protection switch Q is respectively connected with normally open auxiliary contacts of the alternating current contactor KM1 and the alternating current contactor KM2, the normally open auxiliary contact of the alternating current contactor KM1 and the normally open auxiliary contact of the alternating current contactor KM2 are connected with the counter PC, and the counter PC is connected with an N terminal; the power indicator light loop comprises a power indicator light H, a normally open contact of the motor protection switch Q is connected with the power indicator light H, and the other end of the power indicator light H is connected with the N wiring terminal; the limit device loop comprises two gear indicating discs ZS, a time relay KT and a resistor R, the two gear indicating discs ZS and the time relay KT are connected in parallel, normally open contacts of the motor protection switch Q are respectively connected with normally open contacts of the two gear indicating discs ZS and the time relay KT, the normally open contact of the time relay KT is connected with the resistor R, and the two gear indicating discs ZS and the resistor R are connected with an N wiring end; switching protection circuit includes travel switch SXK2 and time relay KT, the normally open end of travel switch SXK2 is connected to motor protection switch Q's normally open contact, the coil end of time relay KT is connected to the normally open end of travel switch SXK2, the N wiring end is connected to time relay KT's coil end.
And a pair of passive contacts is also arranged at the position of the incoming line power supply L1 and is connected with an alarm.
The controller adopts a remote controller and is electrically connected with the electric control circuit in a wired or wireless mode.
The change over switch is arranged on the upper left side of the tap changer, the tap selector is arranged on the lower left side of the tap changer, the energy storage mechanism is arranged on the upper right side of the tap changer, the reduction gearbox is arranged in the middle of the right side of the tap changer, and the electric control part is arranged on the lower right side of the tap changer.
The utility model has the beneficial effects that: the inductance value of a tap of an arc suppression coil is adjusted through an on-load voltage regulation switch, the on-load voltage regulation tap can be automatically adjusted through the arrangement of an electric control circuit, the motor is controlled to automatically shift up and down under the condition of constant speed, so that the motor is adjusted to a required compensation gear, meanwhile, the motor can be manually operated under the condition of no power supply, the structure of only manual operation in the prior art is replaced, the conversion of the motor to automatic intelligent operation is realized, and the remote operation is realized by sending an instruction through an external controller and automatically adjusting through the controller, so that the safety of power utilization is further ensured; in general, the utility model has the advantages of automatic operation and high safety.
Drawings
Fig. 1 is a schematic diagram of the connection of the tap changer and the arc suppression coil to the power grid in the present invention.
Fig. 2 is a schematic diagram of the electrical control circuit of the present invention.
Fig. 3 is a schematic view of the connecting terminal of the present invention.
Fig. 4 is a schematic view of the gear indicator disc of the present invention.
Fig. 5 is a schematic diagram of a tap changer according to the utility model.
FIG. 6 is a wiring diagram of the first portion of the present invention.
FIG. 7 is a second partial wiring diagram of the present invention.
Detailed Description
The technical scheme of the utility model is further specifically described below with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, an arc suppression coil on-load automatic voltage regulation tap switch comprises a change-over switch, a tap selector, an energy storage mechanism, a reduction box and an electric control part.
The structure of the connection structure of the arc suppression coil and the on-load tap changer with the power grid is shown in fig. 1, one end of the arc suppression coil is connected with the power grid through a transformer and a high-voltage circuit breaker and is also connected with the tap changer, the other end of the arc suppression coil is connected with a load, the tap changer is connected with a single-phase power supply through a terminal strip, and the tap changer is connected with a controller.
In the tap changer, the change-over switch is arranged at the left upper side of the tap changer, 2 cams on one cam shaft mainly drive 2 vacuum switch tubes to act according to a certain program, and the transition resistor is arranged below the vacuum tube; the tapping selector is arranged at the left lower side of the tapping switch, and four groups of movable contacts are driven to move up and down by a rack and a gear, so that the purpose of selecting tapping contacts is realized; the energy storage mechanism is arranged at the upper right side of the tap switch, stores energy in the spring through a mechanical structure, and then releases the energy stored in the spring to drive the change-over switch to act; the reduction gearbox is arranged in the middle of the right side of the tapping switch, mainly changes the output rotating speed of the motor, and simultaneously transmits power to the tapping selector and the energy storage mechanism; the structure belongs to the prior art, and is not particularly limited herein; the electric control part is arranged at the right lower side of the tapping switch, the motor is controlled to run and reverse by an alternating current contactor and an intermediate relay, and meanwhile, the electric control part is also provided with a motor protection switch, a gear connecting and switching protection and the like.
The controller and the specific circuit connection structure thereof belong to the prior art and are common general knowledge to the skilled in the art, and other special requirements are not made in the application, and only the controller can realize the functions in the application, so that the controller is not limited in detail.
The electric control circuit comprises a main loop, a control loop, a gear connection protection loop, a counting loop, a power indicator light loop, a limit device loop and a switching protection loop.
The main loop comprises an incoming line power supply L1, a motor protection switch Q, a motor M, an alternating current contactor KM3, an alternating current contactor KM2, an alternating current contactor KM1 and a capacitor C, two ends D1, D2 and an N terminal of the capacitor C are respectively arranged at three terminals of the motor M, 5 and 6 main contacts of the alternating current contactor KM1 are connected to a D1 end of the capacitor C, 5 and 6 main contacts of the alternating current contactor KM2 are connected to a D2 end of the capacitor C, 61 and 62 normally closed auxiliary contacts of the alternating current contactor KM3 are connected to 5 and 6 main contacts of the alternating current contactor KM1 and the alternating current contactor KM2, the other ends of the 61 and 62 normally closed auxiliary contacts of the alternating current contactor KM3 are connected to 1 and 2 normally open contacts of the motor protection switch Q, and the other ends of the 1 and 2 normally open contacts of the motor protection switch Q are connected to the incoming line power supply L1.
The control circuit comprises a normally open button 1SB, a normally open button 2SB, a gear indicator panel ZS1, a gear indicator panel ZS2, an alternating current contactor KM1, an alternating current contactor KM2, an alternating current contactor KM3 and a travel switch SXK1, wherein normally open contacts 1 and 2 of the motor protection switch Q are respectively connected with a normally closed end of the normally open button 1SB and a normally closed end of the travel switch SXK1 and the normally open button 2 SB; the other end of the normally open button 1SB is connected with a gear indicator panel ZS1, the gear indicator panel ZS1 is connected with coil ends A1 and A2 of an alternating current contactor KM1, coil ends A1 and A2 of the alternating current contactor KM1 are connected with normally closed auxiliary contacts 61 and 62 of the alternating current contactor KM2, the other ends of the normally closed auxiliary contacts 61 and 62 of the alternating current contactor KM2 are connected with normally closed auxiliary contacts 71 and 72 of the alternating current contactor KM3, and the other ends of the normally closed auxiliary contacts 71 and 72 of the alternating current contactor KM3 are connected with an N terminal; the normally closed end of the travel switch SXK1 is respectively connected with the main contacts 1 and 2 of an alternating current contactor KM1 and the main contacts 1 and 2 of an alternating current contactor KM2, the main contacts 1 and 2 of the alternating current contactor KM1 and the main contacts 1 and 2 of the alternating current contactor KM2 are respectively connected with the main contacts 1 and 2 and the main contacts 13 and 14 of an alternating current contactor KM3, and the coil ends A1 and A2 of the alternating current contactor KM3 are connected with an N terminal; the other end of the normally open button 2SB is connected with a gear indicator panel ZS2, the gear indicator panel ZS2 is connected with the coil ends A1 and A2 of an AC contactor KM2, the coil ends A1 and A2 of the AC contactor KM2 are connected with the normally closed auxiliary contacts 61 and 62 of the AC contactor KM1, the normally closed auxiliary contacts 61 and 62 of the AC contactor KM1 are connected with the normally closed auxiliary contacts 71 and 72 of the AC contactor KM3, and the other ends of the normally closed auxiliary contacts 71 and 72 of the AC contactor KM3 are connected with an N terminal.
In specific implementation, when the motor normally works, the motor protection switch Q is switched on, the normally open button 1SB is pressed, the section 1-3 in fig. 2 is switched on, and the control current flows through the motor protection switch Q, the normally open button 1SB, the gear indicator ZS1, the ac contactor KM1, the ac contactor KM2 and the ac contactor KM3, that is, as shown in fig. 2, the current sequentially flows through the reference numbers L1-1-3-5-6-11-N in fig. 2 to electrify the main loop, the main loop ac contactor KM1 is switched on, that is, the section V2-D1 in fig. 2 is switched on, the motor is started, and simultaneously, the KM1 is switched on, that is, the section 21-5 in fig. 2 is switched on, and then the control current flows through the motor protection switch Q, the travel switch SXK1, the ac contactor KM1, the ac contactor KM1, the ac contactor KM2 and the ac contactor KM3, that is, the current sequentially flows through the reference numbers L1-1-21-5-6-11 in fig. 2 N, the AC contactor KM1 is kept to be attracted, namely, the sections 5-6 in the figure 2 are switched on, the main loop AC contactor KM1 is switched on, namely, the sections V2-D1 are switched on, and the motor is continuously kept to run; when the switching action of the tap switch is finished, the travel switch SXK1 is opened once due to mechanical movement, namely 1-21 sections are disconnected, at the moment, the original control circuit is disconnected, the alternating current contactor KM1 is disconnected, namely V2-D1 sections are disconnected, the motor stops running, and the action in the direction of downshifting n-1 is finished once.
If the normally open button 1SB is not disconnected, namely the sections 1-3 in the figure 2 are not disconnected, the action in the direction of the upshifting 1-N is finished, and the current passes through the motor protection switch Q, the normally open button 1SB, the gear indicator plate ZS1, the AC contactor KM3 and the AC contactor KM3, namely the current passes through the section L1-1-3-5-12-N in the figure 2, and the section KM3 is attracted, namely the section 12-N is connected, the section KM3 is the section 11-N and the section KM3 is the section 1-V2 are disconnected, so that the control loop N-1 or the section 1-N and the main loop can not be connected, and the switch can not be operated next time, and vice versa.
The gear-connecting protection circuit comprises a travel switch SXK1, an alternating current contactor KM1, an alternating current contactor KM2 and an alternating current contactor KM3, wherein normally open contacts 1 and 2 of the motor protection switch Q are respectively connected with a normally open end of the travel switch SXK1 and normally open auxiliary contacts 53 and 54 of the alternating current contactor KM3, the travel switch SXK1 and the alternating current contactor KM3 are connected in parallel, the normally open end of the travel switch SXK1 and the normally open auxiliary contacts 53 and 54 of the alternating current contactor KM3 are respectively connected with the alternating current contactor KM1 and the alternating current contactor KM2 which are connected in parallel, the normally open end of the travel switch SXK1 and the normally open auxiliary contacts 53 and 54 of the alternating current contactor KM3 are respectively connected with main contacts 3 and 4 of the alternating current contactor KM1 and main contacts 3 and 4 of the alternating current contactor KM2, and the main contacts 3 and 4 of the alternating current contactor KM1 and the main contacts 3 and the alternating current contactor KM2 are respectively connected with A1 of the alternating current contactor 3, A2 coil end, and the A1 and A2 coil ends of the alternating current contactor KM3 are connected with an N terminal.
In specific implementation, when the tap switch continues to operate due to the fact that the ac contactor KM1, i.e., the sections 5 to 6 in fig. 2, or the ac contactor KM2, i.e., the sections 4 to 7 in fig. 2, cannot be turned off or turned off with a delay for a special reason, the travel switch SXK1 is turned on, i.e., the sections 1 to 22 in fig. 2, so that the ac contactor KM1, i.e., the sections 22 to 12 in fig. 2, or the ac contactor KM2, i.e., the sections 22 to 12 in fig. 2 passes through, and the ac contactor KM3, i.e., the sections 1 to 22 in fig. 2, turns on the ac contactor KM3, i.e., the section 12 to N in fig. 2, so that the ac contactor KM3, i.e., the section 1 to V2 in fig. 2, and the ac contactor KM3, i.e., the section 11 to N in fig. 2, are turned off, so that the down-1-N control loop and the main loop cannot be turned on, and the switch cannot be turned on until the ac contactor KM1, i.e., the section 5 in fig. 2, returns to normal operation, so that the next operation is resumed until the ac contactor KM1, or the section 4-7 in fig. 2, is completed Do this.
The counting loop comprises an alternating current contactor KM1, an alternating current contactor KM2 and a counter PC, wherein the alternating current contactor KM1 and the alternating current contactor KM2 are connected in parallel, normally open contacts of the motor protection switch Q are respectively connected with 13 and 14 normally open auxiliary contacts of the alternating current contactor KM1 and 13 and 14 normally open auxiliary contacts of the alternating current contactor KM2, the 13 and 14 normally open auxiliary contacts of the alternating current contactor KM1 and the 13 and 14 normally open auxiliary contacts of the alternating current contactor KM2 are connected with the counter PC, and the counter PC is connected with an N wiring terminal.
In specific implementation, when the control loop N-1 or 1-N is switched on once, the alternating current contactor KM1, namely the segments 1-8 in FIG. 2, or the alternating current contactor KM2, namely the segments 1-8 in FIG. 2 is switched on once, a command is sent to the counter PC once, and the counter PC acts once, namely the segment 8-N in FIG. 2 is switched on once, so that the number of times is counted.
The power indicator lamp loop comprises a power indicator lamp H, a normally open contact of the motor protection switch Q is connected with the power indicator lamp H, and the other end of the power indicator lamp H is connected with the N wiring end.
Wherein, limit device return circuit includes two gear indicator panel ZS, time relay KT and resistance R, two gear indicator panel ZS and time relay KT parallel connection, two gear indicator panel ZS and time relay KT's normally open contact are connected respectively to motor protection switch Q's normally open contact, time relay KT's normally open contact is connected with resistance R, two gear indicator panel ZS and resistance R connect N wiring end.
In particular, when the downshift n-1 control circuit is operated to the 1 st gear, the gear indicator ZS1 is turned off, i.e., the segments 3-5 in fig. 2 are turned off, and even if the normally open button 1SB is pressed, i.e., the segments 1-3 in fig. 2 are turned on, the downshift n-1 control circuit current cannot flow, so that the downshift n-1 control circuit does not pass through the gear, and the upshift 1-n control circuit is operated normally, or vice versa.
If the ac contactor KM1, i.e. the sections 5 to 6 in fig. 2, cannot be opened due to a fault, and the N-range is exceeded, the switch continues to operate, the gear indicator ZS, i.e. the sections 1 to N in fig. 2, is closed, the motor protection switch Q is tripped, i.e. the section L1-1 in fig. 2 is opened, the motor stops operating, the main circuit and the control circuit are powered off, and vice versa.
Wherein, it includes travel switch SXK2 and time relay KT to switch protection circuit, the normally open end of travel switch SXK2 is connected to motor protection switch Q's normally open contact, the coil end of time relay KT is connected to the normally open end of travel switch SXK2, the N wiring end is connected to the coil end of time relay KT.
In specific implementation, when the switch is not switched in place due to mechanical reasons, due to mechanical movement, the travel switch SXK2 is pressed, namely sections 1-10 in fig. 2 are switched on, the time relay KT is used for timing, when the timing time is up, the time relay KT is switched on, namely sections 10-N in fig. 2 are switched on, the motor protection switch Q is tripped, namely section L1-1 in fig. 2 is switched off, the main circuit and the control circuit are powered off, the motor protection switch Q is switched on at the same time, a pair of passive contacts are reserved at an incoming line power supply and are connected with an alarm of a user, and once the main circuit and the control circuit are powered off, the alarm of the user alarms, and the fact that the switch is in fault is indicated, namely sections 19-20 in fig. 2 are switched on to alarm outside.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. An arc suppression coil on-load automatic voltage regulation tap switch is characterized in that: comprises a change-over switch, a tapping selector, an energy storage mechanism, a reduction gearbox and an electric control part, wherein the electric control part comprises an electric control circuit and an external controller, the controller is electrically connected with the electric control circuit,
wherein the electric control circuit comprises a main loop, a control loop, a gear-connecting protection loop, a counting loop, a power indicator light loop, a limit device loop and a switching protection loop,
the main loop comprises an incoming line power supply L1, a motor protection switch Q, a motor M, an alternating current contactor KM3, an alternating current contactor KM2, an alternating current contactor KM1 and a capacitor C, three terminals of the motor M are respectively connected with two ends D1, D2 and N terminals of the capacitor C, a D1 end of the capacitor C is connected with a main contact of the alternating current contactor KM1, a D2 end of the capacitor C is connected with a main contact of the alternating current contactor KM2, the other ends of the main contacts of KM1 and KM2 are connected with a normally closed auxiliary contact of the alternating current contactor KM3, the other end of the normally closed auxiliary contact of the alternating current contactor KM3 is connected with a normally open contact of the motor protection switch Q, and the other end of the normally open contact of the motor protection switch Q is connected with the incoming line power supply L1;
the control loop comprises a normally open button 1SB, a normally open button 2SB, a gear indicator panel ZS1, a gear indicator panel ZS2, an alternating current contactor KM1, an alternating current contactor KM2, an alternating current contactor KM3 and a travel switch SXK1, wherein normally open contacts of the motor protection switch Q are respectively connected with the normally open button 1SB, a normally closed end of the travel switch SXK1 and the normally open button 2 SB; the other end of the normally open button 1SB is connected with a gear indicator panel ZS1, the gear indicator panel ZS1 is connected with a coil end of an alternating current contactor KM1, a coil end of the alternating current contactor KM1 is connected with a normally closed auxiliary contact of the alternating current contactor KM2, the other end of the normally closed auxiliary contact of the alternating current contactor KM2 is connected with a normally closed auxiliary contact of the alternating current contactor KM3, and the other end of the normally closed auxiliary contact of the alternating current contactor KM3 is connected with an N terminal; the normally closed end of the travel switch SXK1 is respectively connected with a main contact of an alternating current contactor KM1 and a main contact of an alternating current contactor KM2, the main contact of the alternating current contactor KM1 and the main contact of the alternating current contactor KM2 are respectively connected with a main contact of an alternating current contactor KM3, and the coil end of the alternating current contactor KM3 is connected with an N terminal; the other end of the normally open button 2SB is connected with a gear indicator panel ZS2, the gear indicator panel ZS2 is connected with the coil end of an alternating current contactor KM2, the coil end of the alternating current contactor KM2 is connected with a normally closed auxiliary contact of an alternating current contactor KM1, the normally closed auxiliary contact of the alternating current contactor KM1 is connected with a normally closed auxiliary contact of an alternating current contactor KM3, and the other end of the normally closed auxiliary contact of the alternating current contactor KM3 is connected with an N terminal;
the continuous-gear protection circuit comprises a travel switch SXK1, an alternating current contactor KM1, an alternating current contactor KM2 and an alternating current contactor KM3, wherein a normally open contact of a motor protection switch Q is respectively connected with a normally open end of a travel switch SXK1 and a normally open auxiliary contact of an alternating current contactor KM3, a travel switch SXK1 is connected with the alternating current contactor KM3 in parallel, a normally open end of the travel switch SXK1 and a normally open auxiliary contact of an alternating current contactor KM3 are respectively connected with an alternating current contactor KM1 and an alternating current contactor KM2 which are connected in parallel, a normally open end of the travel switch SXK1 and a normally open auxiliary contact of an alternating current contactor KM3 are respectively connected with a main contact of an alternating current contactor KM1 and a main contact of an alternating current contactor KM2, a main contact of the alternating current contactor KM1 and a main contact of the alternating current contactor KM2 are connected with a coil end of an alternating current contactor KM3, and a coil end of an alternating current contactor KM3 is connected with an N terminal;
the counting loop comprises an alternating current contactor KM1, an alternating current contactor KM2 and a counter PC, wherein the alternating current contactor KM1 and the alternating current contactor KM2 are connected in parallel, a normally open contact of a motor protection switch Q is respectively connected with normally open auxiliary contacts of the alternating current contactor KM1 and the alternating current contactor KM2, the normally open auxiliary contact of the alternating current contactor KM1 and the normally open auxiliary contact of the alternating current contactor KM2 are connected with the counter PC, and the counter PC is connected with an N terminal;
the power indicator light loop comprises a power indicator light H, a normally open contact of the motor protection switch Q is connected with the power indicator light H, and the other end of the power indicator light H is connected with the N wiring terminal;
the limit device loop comprises two gear indicating discs ZS, a time relay KT and a resistor R, the two gear indicating discs ZS and the time relay KT are connected in parallel, normally open contacts of the motor protection switch Q are respectively connected with normally open contacts of the two gear indicating discs ZS and the time relay KT, the normally open contact of the time relay KT is connected with the resistor R, and the two gear indicating discs ZS and the resistor R are connected with an N wiring end;
switching protection circuit includes travel switch SXK2 and time relay KT, the normally open end of travel switch SXK2 is connected to motor protection switch Q's normally open contact, the coil end of time relay KT is connected to the normally open end of travel switch SXK2, the N wiring end is connected to time relay KT's coil end.
2. An arc suppression coil on-load automatic voltage regulation tap switch according to claim 1, characterized in that: and a pair of passive contacts is also arranged at the position of the incoming line power supply L1 and is connected with an alarm.
3. An arc suppression coil on-load automatic voltage regulation tap switch according to claim 1, characterized in that: the controller adopts a remote controller and is electrically connected with the electric control circuit in a wired or wireless mode.
4. An arc suppression coil on-load automatic voltage regulation tap switch according to claim 1, characterized in that: the change over switch is arranged on the upper left side of the tap changer, the tap selector is arranged on the lower left side of the tap changer, the energy storage mechanism is arranged on the upper right side of the tap changer, the reduction gearbox is arranged in the middle of the right side of the tap changer, and the electric control part is arranged on the lower right side of the tap changer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283968.1U CN215343907U (en) | 2021-06-09 | 2021-06-09 | On-load automatic voltage regulation tap switch for arc suppression coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283968.1U CN215343907U (en) | 2021-06-09 | 2021-06-09 | On-load automatic voltage regulation tap switch for arc suppression coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215343907U true CN215343907U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121283968.1U Active CN215343907U (en) | 2021-06-09 | 2021-06-09 | On-load automatic voltage regulation tap switch for arc suppression coil |
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| Country | Link |
|---|---|
| CN (1) | CN215343907U (en) |
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2021
- 2021-06-09 CN CN202121283968.1U patent/CN215343907U/en active Active
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