CN212725163U - Operating mechanism case power supply input unit, control circuit and operating mechanism case - Google Patents

Abstract

The utility model provides an operating device case power input unit, control circuit and operating device case, operating device case power input unit includes: the power supply remote control switching-off contact is used for feeding back a power supply switching-off instruction of the remote control end by closing and opening the contact; the power supply remote control closing contact is used for feeding back a power supply closing instruction of the remote control end by closing the contact and breaking the opening contact; the power supply releasing circuit comprises a first intermediate relay, a second intermediate relay and an alternating current contactor, wherein a control coil of the alternating current contactor is the same as a control coil of the first intermediate relay in working state, and a contact of the alternating current contactor is used for controlling a control loop of the operating mechanism box body and the on-off of a main loop. The embodiment of the utility model provides a realize carrying out the efficient feedback to the break-make of power remote control combined floodgate contact and power remote control separating brake contact through first auxiliary relay, second auxiliary relay and ac contactor, realize whether the control of coming into operation to operating device's major loop and control circuit simultaneously.

Description

Operating mechanism case power supply input unit, control circuit and operating mechanism case

Technical Field

The utility model belongs to the isolator field, concretely relates to unit, control circuit and operating device case are put in to operating device case power.

Background

With the development of power grid utilities and power transmission engineering, the requirement for the intellectualization of a transformer substation is higher and higher, and the intellectualization engineering also becomes the inevitable trend of the development of the power grid utilities. The isolating switch operating mechanism box is a core part for controlling the action of the isolating switch, and is a ring which is difficult to avoid in intelligent control, so that higher requirements are put forward for the control function of the isolating switch operating mechanism box. At present, the opening and closing operations of the isolating switch operating mechanism box on the market are divided into two types, wherein one type is the local manual opening and closing operation; the other method is to keep the power supply of the isolating switch operating mechanism box in an on state in advance and then carry out remote switch-on by utilizing the communication with a controller in the isolating switch operating mechanism box. For the remote switching-on mode by using the controller, the isolating switch operating mechanism box needs to be kept in the power-on state all the time, and once the power-on state is not carried out, the remote switching-on and switching-off operation cannot be realized. The control of the power-on state of the isolating switch operating mechanism box can be manually operated only locally.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an operating device case power supply input unit, the simple structure of operating device case power supply input unit has solved the problem that isolator operating device case can only local control on state. The utility model also provides an operating device case control circuit and an operating device case.

According to the utility model discloses operating device case power supply input unit of first aspect embodiment, include: the power supply remote control switching-off contact is used for feeding back a power supply switching-off instruction of the remote control end by closing and opening the contact; the power supply remote control closing contact is used for feeding back a power supply closing instruction of the remote control end by closing the contact and breaking the opening contact; the power supply throwing circuit comprises a first intermediate relay, a second intermediate relay and an alternating current contactor, wherein a control coil of the first intermediate relay, a normally closed contact of the second intermediate relay and a power remote control switch-on contact are sequentially connected in series and then connected between control power lines of an operating mechanism box body, a control coil of the second intermediate relay and a power remote control switch-off contact are connected in series and then connected between the control power lines, a normally open contact of the first intermediate relay is connected in parallel with the power remote control switch-on contact, a control coil of the alternating current contactor is the same as the working state of the control coil of the first intermediate relay, and a contact of the alternating current contactor is used for controlling a control loop of the operating mechanism box body and the on-off of a main loop.

According to the utility model discloses operating device case power input unit has following technological effect at least: the power supply switching-on and switching-off command of the remote control end can be fed back in real time through the power supply remote control switching-on contact and the power supply remote control switching-off contact, and the power supply switching-on and switching-off command can be effectively utilized by the power supply releasing circuit through the feedback of the switching-on and switching-off mode of the contacts. The first intermediate relay, the second intermediate relay and the alternating current contactor are used for realizing efficient feedback on the on-off of the power supply remote control switch-on contact and the power supply remote control switch-off contact, and meanwhile, the control on whether a main loop and a control loop of an operating mechanism are put into use or not is realized. The utility model discloses operating device case power supply input unit provides the basis that realizes the remote control power input, has solved the problem that can only local manual operation operating device case circular telegram.

According to some embodiments of the utility model, ac contactor's control coil with first auxiliary relay's normally open contact is established ties the back and is connected between the control power cord, ac contactor's normally open contact is used for bypass control the control circuit main switch and the main circuit main switch of operating device case.

According to the utility model discloses a some embodiments, the circuit is put in to the power still includes power remote control main switch, power remote control main switch is used for controlling whether the power input function can use.

According to the second aspect of the present invention, the control circuit of the operating mechanism box comprises the above-mentioned power supply putting unit of the operating mechanism box; the control loop is connected with the operating mechanism box power supply putting unit; the main loop is connected with the operating mechanism box power supply throwing unit; the main loop and the control loop are jointly used for controlling a driving motor of the operating mechanism box body to perform switching-off and switching-on operations.

According to the utility model discloses operating device case control circuit has following technological effect at least: through increasing the utility model discloses operating device case power supply input unit has realized whether can the circular telegram work control circuit and major loop. The control of the driving motor of the operating mechanism box body is realized through the control loop and the main loop.

According to some embodiments of the utility model, above-mentioned operating device case control circuit is still including being used for reducing the damp-repellent circuit of this internal humidity of operating device case.

According to some embodiments of the utility model, the damp-repellent circuit includes: the temperature and humidity controller is connected with the control power supply and is used for outputting a dehumidification starting signal; and the heater is connected with the temperature and humidity controller and is controlled by the temperature and humidity controller to start and stop.

According to the utility model discloses a some embodiments, drive damp circuit is still including being used for control whether the humiture controller works drive damp master switch.

According to some embodiments of the invention, the moisture drive circuit further comprises an exhaust fan connected in parallel with the heater.

According to some embodiments of the utility model, above-mentioned operating device case control circuit is still including establishing ties in proper order light switch and light between the control power cord.

According to the utility model discloses operating device case of third aspect embodiment, including operating device case body and foretell operating device case control circuit.

According to the utility model discloses operating device case has following technological effect at least: through the control circuit of the operating mechanism box, the operation of the operating mechanism box body is controlled, and whether the operating mechanism box body is put into use or not is controlled from a remote control end.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a power supply delivery circuit according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a control loop of an embodiment of the present invention;

fig. 3 is a schematic diagram of a primary loop of an embodiment of the present invention;

fig. 4 is a schematic diagram of a moisture removal circuit in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural view (side view) of an operating mechanism case according to an embodiment of the present invention;

fig. 6 is a schematic structural view (front view) of an operating mechanism case according to an embodiment of the present invention.

Reference numerals:

a power supply remote control switch-off contact 110, a power supply remote control switch-on contact 120,

A control loop 200,

A main loop 300,

A driving motor 400,

A moisture-removing circuit 500, a temperature and humidity controller 510, a heater 520,

An illumination switch 610 and an illumination lamp 620.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, if there are first, second, third, fourth, etc. described, it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

An operating mechanism box power supply delivery unit according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 6.

According to the utility model discloses operating device case power supply input unit of first aspect embodiment, include: the power supply remote control switch-off contact 110, the power supply remote control switch-on contact 120 and the power supply throwing circuit. The power supply remote control switching-off contact 110 is used for feeding back a power supply switching-off instruction of a remote control end by closing and opening the contact; the power supply remote control closing contact 120 is used for feeding back a power supply closing instruction of the remote control end by closing the contact and breaking the opening contact; the power supply throwing circuit comprises a first intermediate relay ZJ1, a second intermediate relay ZJ2 and an alternating current contactor KM3, a control coil of the first intermediate relay ZJ1, a normally closed contact of the second intermediate relay ZJ2 and a power remote control closing contact 120 are sequentially connected in series and then connected between control power lines of an operating mechanism box body, a control coil of the second intermediate relay ZJ2 and a power remote control opening contact 110 are connected in series and then connected between the control power lines, a normally open contact of the first intermediate relay ZJ1 is connected with the power remote control closing contact 120 in parallel, the control coil of the alternating current contactor KM3 and the control coil of the first intermediate relay ZJ1 are in the same working state, and a contact of the alternating current contactor KM3 is used for controlling the on-off of a control loop 200 and a main loop 300 of the operating mechanism box body.

Referring to fig. 1 to 3, the power remote opening contact 110 and the power remote closing contact 120 are contacts that reflect a control command of a remote terminal. If the remote control end is close to the operating mechanism box, the remote control end can directly adopt a key switch as the power supply remote control opening contact 110 and the power supply remote control closing contact 120. If the remote control end is far away from the operating mechanism box, a controller can be added in the operating mechanism box, the controller receives a control instruction sent by the remote control end in a wireless or wired mode, and then the on-off of the power supply remote control opening contact 110 and the power supply remote control closing contact 120 is controlled. When the controller is required to be used for auxiliary control, other power supplies are required to be used for power supply, and the power supply mode can adopt a storage battery to supply power or directly connect power from a power distribution network where the storage battery is located.

The first intermediate relay ZJ1, the second intermediate relay ZJ2 and the alternating current contactor KM3 are mainly used for controlling the on-off of the loop 200. Referring to fig. 1, the control coil of the ac contactor KM3 is connected in series with the normally open contact of the first intermediate relay ZJ1, enabling almost simultaneous energization with the control coil of the first intermediate relay ZJ 1. The control coil of the alternating current contactor KM3 can also be directly connected in parallel with the control coil of the first intermediate relay ZJ1, so that the control coil of the first intermediate relay ZJ1 is powered simultaneously. The normally open contacts of the alternating current contactor KM3 are provided with multiple groups and are respectively used for a main switch QF2 of a bypass control loop and a main switch QF3 of a main loop, and when a control coil of the alternating current contactor KM3 is electrified, even if the main switch QF2 of the bypass control loop and the main switch QF3 of the main loop are not closed, short circuit can be directly bypassed, and power supply is further achieved.

The working process of the operating mechanism box power supply releasing unit according to the embodiment of the present invention is briefly described below with reference to fig. 1 to 3.

The power supply throwing and closing process comprises: when power remote control closing contact 120 closed under the control of remote control end, first intermediate relay ZJ 1's control coil got electric, first intermediate relay ZJ 1's normally open contact closed, then form the return circuit after establishing ties with second intermediate relay ZJ 2's normally closed contact, first intermediate relay ZJ 1's normally open contact closure can be with power remote control closing contact 120 short circuit simultaneously, first intermediate relay ZJ 1's control coil can form the self-sustaining state this moment. When the normally open contact of the first intermediate relay ZJ1 is closed, the control coil of the ac contactor KM3 connected in series with the normally open contact of the first intermediate relay ZJ1 is energized, and all the normally open contacts of the ac contactor KM3 are closed, so that the control loop 200 and the main loop 300 are connected.

The power supply throwing-in and opening process: when the power remote control opening contact 110 is closed under the control of the remote control end, the control coil of the second intermediate relay ZJ2 is electrified, at the moment, the control coil of the first intermediate relay ZJ1 connected in series with the normally open contact of the second intermediate relay ZJ2 is electrified, so that the control coil of the alternating current contactor KM3 is electrified, finally, the normally open contact of the alternating current contactor KM3 for controlling the on-off of the main circuit 300 and the control circuit 200 is electrified and disconnected, and the main circuit 300 and the control circuit 200 are powered off.

According to the utility model discloses operating device case power supply input unit can realize the real-time feedback to the power divide-shut brake instruction of remote control end through power remote control combined floodgate contact 120 and power remote control separating brake contact 110, and the mode feedback through the contact break-make can make the power put in the circuit and can effectually utilize power divide-shut brake instruction. The first intermediate relay ZJ1, the second intermediate relay ZJ2 and the alternating current contactor KM3 are used for realizing the high-efficiency feedback of the contact make-and-break of the power supply remote control switch-on contact 120 and the power supply remote control switch-off contact 110, and simultaneously realizing the control on whether the main loop 300 and the control loop 200 of the operating mechanism are put into use. The utility model discloses operating device case power supply input unit provides the basis that realizes the remote control power input, has solved the problem that can only local manual operation operating device case circular telegram.

In some embodiments of the present invention, the control coil of the ac contactor KM3 is connected between the control power lines after being connected in series with the normally open contact of the first intermediate relay ZJ1, and the normally open contact of the ac contactor KM3 is used for the control circuit main switch QF2 and the main circuit main switch QF3 of the bypass control operation mechanism box. The control coil of the first intermediate relay ZJ1 is electrified, then the normally open contact of the first intermediate relay ZJ1 is closed, and then all the normally open contacts of the alternating current contactor KM3 are closed, so that the main loop main switch QF3 and the control loop main switch QF2 which are bypassed by the normally open contacts of the alternating current contactor KM3 are all shorted.

In some embodiments of the present invention, referring to fig. 1, the power supply delivery circuit further includes a power supply remote control main switch QF4, and the power supply remote control main switch QF4 is used to control whether the power supply delivery function can be used. Referring to fig. 1, the main purpose of adding the power supply remote control main switch QF4 is to prevent the remote control end from being operated by mistake, and only on the premise of confirming that the remote control operation is performed at the far end, the power supply remote control main switch QF4 is switched on, thereby ensuring that the remote control end can be operated.

In some embodiments of the present invention, referring to fig. 5 and 6, the power remote control main switch QF4 is disposed on the main control panel of the operating mechanism box body. The first intermediate relay ZJ1, the second intermediate relay ZJ2 and the AC contactor KM3 are arranged in the operating mechanism box body.

According to the utility model discloses operating device case control circuit of second aspect embodiment includes: the utility model discloses operating device case power supply input unit, control circuit 200, major loop 300. The control loop 200 is connected with the power supply putting unit of the operating mechanism box; the main loop 300 is connected with the power supply putting unit of the operating mechanism box; the main circuit 300 and the control circuit 200 are used together to control the driving motor 400 of the operating mechanism box body to perform opening and closing operations.

Referring to fig. 1 to 3, the control circuit 200 controls the corresponding control coil of the closing contactor KM1 or the corresponding control coil of the opening contactor KM2 to be powered according to the opening and closing operation, so as to control the normally open contact of the closing contactor KM1 or the normally open contact of the opening contactor KM2 in the main circuit 300 to be closed and opened, and finally controls the driving motor 400 to realize forward and reverse rotation. As to whether the above operation can be performed or not, depending mainly on whether the control circuit 200 and the main circuit 300 can be powered or not, the control circuit 200 and the main circuit 300 can be powered by the operation mechanism box power supply unit in addition to directly switching on the control circuit main switch QF2 and the main circuit main switch QF 3.

According to the utility model discloses operating device case control circuit, through increasing the utility model discloses operating device case power supply input unit has realized whether can whether control circuit 200 and major loop 300 can the circular telegram work control. The control of the driving motor 400 of the operating mechanism case body is realized by the control circuit 200 and the main circuit 300.

In some embodiments of the present invention, the operating mechanism control circuit further comprises a moisture-removing circuit 500 for reducing the humidity in the operating mechanism box body. The operating device case can be in an overtime environment under many circumstances, and although most operating device cases all can have better sealed effect, still be difficult to avoid letting the inside humidity of operating device case rise, if not carrying out certain degree dehumidification operation this moment, then can make the insulating of operating device case reduce and cause the corruption to the operating device case. The increase or decrease of the dampening circuit 500 can effectively avoid the problem.

In some embodiments of the present invention, referring to fig. 4, the moisture expelling circuit 500 includes: temperature and humidity controller 510, heater 520. A temperature and humidity controller 510 connected to the control power supply for outputting a dehumidification start signal; and the heater 520 is connected with the temperature and humidity controller 510 and is controlled to start and stop by the temperature and humidity controller 510. The temperature and humidity controller 510 can sense the temperature and humidity in the air and perform corresponding operations according to the temperature and humidity. For example, when the humidity is too high, a close signal is outputted to operate the heater 520, thereby performing a dehumidifying operation. And temperature acquisition can avoid the temperature in the operating mechanism case to hang down or too high to cause the damage to the operating mechanism case.

In some embodiments of the present invention, referring to fig. 4, the moisture expelling circuit 500 further includes a moisture expelling main control switch QF1 for controlling whether the temperature and humidity controller 510 works. The moisture expelling function is in an idle state in most of the time, and when the moisture expelling function does not need to be started, the temperature and humidity controller 510 can be powered off by closing the moisture expelling main control switch QF1, so that the energy loss of the belt is reduced.

In some embodiments of the present invention, the dampening circuit 500 further comprises an exhaust fan connected in parallel with the heater 520. The increase of the exhaust fan can lead the speed of removing damp to be faster.

In some embodiments of the present invention, the control circuit of the operating mechanism box further comprises a lighting switch 610 and a lighting lamp 620 sequentially connected in series between the control power lines. Referring to fig. 4, the illumination switch 610 may directly control whether the illumination lamp 620 is turned on or off. The use of illumination can be convenient for maintenance personnel to overhaul and patrol the operating mechanism box.

According to the utility model discloses operating device case of third aspect embodiment, including operating device case body and foretell operating device case control circuit.

According to the utility model discloses operating device case through operating device case control circuit, has realized whether to drop into to use operating device case body moving control, has realized from remote control end control operating device case body.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and those skilled in the art can understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An operating mechanism box power supply delivery unit, comprising:

the power supply remote control switching-off contact is used for feeding back a power supply switching-off instruction of the remote control end by closing and opening the contact;

the power supply remote control closing contact is used for feeding back a power supply closing instruction of the remote control end by closing the contact and breaking the opening contact;

the power supply throwing circuit comprises a first intermediate relay, a second intermediate relay and an alternating current contactor, wherein a control coil of the first intermediate relay, a normally closed contact of the second intermediate relay and a power remote control switch-on contact are sequentially connected in series and then connected between control power lines of an operating mechanism box body, a control coil of the second intermediate relay and a power remote control switch-off contact are connected in series and then connected between the control power lines, a normally open contact of the first intermediate relay is connected in parallel with the power remote control switch-on contact, a control coil of the alternating current contactor is the same as the working state of the control coil of the first intermediate relay, and a contact of the alternating current contactor is used for controlling a control loop of the operating mechanism box body and the on-off of a main loop.

2. The operating mechanism box power supply throwing unit according to claim 1, wherein a control coil of the ac contactor is connected between the control power lines in series with a normally open contact of the first intermediate relay, and the normally open contact of the ac contactor is used for bypass control of a control loop main switch and a main loop main switch of the operating mechanism box.

3. The operating mechanism box power supply delivery unit of claim 1, wherein the power supply delivery circuit further comprises a power supply remote control main switch for controlling whether the power supply delivery function is enabled.

4. An operating mechanism box control circuit, comprising:

the operating mechanism box power supply unit of any one of claims 1 to 3;

the control loop is connected with the operating mechanism box power supply putting unit;

the main loop is connected with the operating mechanism box power supply throwing unit; the main loop and the control loop are jointly used for controlling a driving motor of the operating mechanism box body to perform switching-off and switching-on operations.

5. The operator pod control circuit of claim 4 further comprising a dampening circuit for reducing humidity within the operator pod body.

6. The operator pod control circuit of claim 5 wherein the dampening circuit comprises:

the temperature and humidity controller is connected with the control power supply and is used for outputting a dehumidification starting signal;

and the heater is connected with the temperature and humidity controller and is controlled by the temperature and humidity controller to start and stop.

7. The operating mechanism box control circuit of claim 6, wherein the moisture removing circuit further comprises a moisture removing main control switch for controlling whether the temperature and humidity controller works.

8. The operator pod control circuit of claim 6 or 7, wherein the moisture removal circuit further comprises a suction fan in parallel with the heater.

9. The operator box control circuit according to claim 4, further comprising an illumination switch and an illumination lamp connected in series in this order between the control power lines.

10. An operator's box comprising an operator's box body and an operator's box control circuit according to any one of claims 4 to 9.

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