CN217134236U - Universal circuit breaker delay starting circuit with cost control function - Google Patents
Universal circuit breaker delay starting circuit with cost control function Download PDFInfo
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- CN217134236U CN217134236U CN202220611781.8U CN202220611781U CN217134236U CN 217134236 U CN217134236 U CN 217134236U CN 202220611781 U CN202220611781 U CN 202220611781U CN 217134236 U CN217134236 U CN 217134236U
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Abstract
The utility model discloses an universal circuit breaker delay starting circuit with take accuse function, including the expense accuse return circuit, delay circuit, contactor return circuit, energy storage motor return circuit and the manual separating brake return circuit that connect in parallel each other. The time delay closing of the time delay relay is utilized, the energy storage motor of the universal circuit breaker works in a time delay manner, the remote control loop controls the universal circuit breaker to be switched on in a time delay manner, a user power grid is not connected into a power supply power grid at the moment of power transmission, and equipment such as lines, cables and the like in the user power grid cannot receive the impact of large current, so that secondary faults caused by the large current are avoided, the safety power utilization safety of a user side is ensured, and the property safety of the user is ensured; meanwhile, the charge control function is added, automatic charging is realized, and the workload of the staff is reduced.
Description
The technical field is as follows:
the utility model relates to a distribution electrical equipment field, concretely relates to universal circuit breaker delay starting circuit with take accuse function.
Background art:
the universal circuit breaker is an electrical device used in various circuits, and is a mechanical switch electrical appliance which can connect, bear and break current under normal circuit conditions, and can also connect, bear and break current for a certain time under specified abnormal circuit conditions. For convenient use, the on-site reset function of the undervoltage protection needs to be removed to realize the direct control of the on-off of the universal circuit breaker through a remote control loop, but the starting load of a circuit is increased instantaneously when power is transmitted, the current is increased, the circuit breaker of a transformer substation can trip due to overcurrent, and devices such as the circuit and the cable and places with weak insulation in a user power grid are broken down, so that the service life of the circuit is shortened, secondary faults are formed, and the power transmission time is prolonged.
The utility model has the following contents:
an object of the utility model is to provide an universal circuit breaker delay starting circuit with take accuse function.
The utility model discloses by following technical scheme implement:
a time-delay starting circuit of a universal circuit breaker with a cost control function comprises a cost control loop, a time-delay loop, a contactor loop, an energy storage motor loop and a manual brake-separating loop which are connected in parallel;
the fee control loop is formed by connecting a normally open contact of the fee controller and a coil of the fee control relay in series;
the time delay loop is formed by connecting an automatic end contact of the manual-automatic change-over switch, a normally closed contact of the fee control relay, a normally closed auxiliary contact of the universal circuit breaker and a coil of the time delay relay in series;
the normally open contact of the time delay relay is connected with the manual control circuit in parallel and then is connected with the normally closed contact of the cost control relay, the normally closed auxiliary contact of the universal circuit breaker and the coil of the contactor in series to form an energy storage motor circuit;
the manual control loop is formed by connecting a manual switch and a normally open contact of a contactor in parallel in series with a manual end contact of a manual automatic change-over switch;
the energy storage motor loop is formed by connecting a normally open contact of a contactor and an energy storage motor control branch coil of a universal circuit breaker in a remote control loop in series;
the manual opening circuit is formed by connecting a manual opening switch and a shunt coil control branch coil of a universal circuit breaker in a remote control circuit in series.
Preferably, the system further comprises an arrearage indicating loop which is connected with the energy storage motor loop in parallel, and the arrearage indicating loop is formed by connecting a normally open contact of a fee control relay and an arrearage indicating lamp in series.
Preferably, the energy storage motor circuit further comprises a closing indication circuit and an opening indication circuit which are connected in parallel with the energy storage motor circuit, the closing indication circuit is formed by connecting a normally open auxiliary contact of the universal circuit breaker and a closing indication lamp in series, and the opening indication circuit is formed by connecting a normally closed auxiliary contact of the universal circuit breaker and an opening indication lamp in series.
The utility model has the advantages that: the time delay closing of the time delay relay is utilized, the energy storage motor of the universal circuit breaker works in a time delay manner, the remote control loop controls the universal circuit breaker to be switched on in a time delay manner, a user power grid is not connected into a power supply power grid at the moment of power transmission, and equipment such as lines, cables and the like in the user power grid cannot receive the impact of large current, so that secondary faults caused by the large current are avoided, the safety power utilization safety of a user side is ensured, and the property safety of the user is ensured; meanwhile, the charge control function is added, automatic charging is realized, and the workload of the staff is reduced.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: the intelligent charging system comprises a universal circuit breaker QF, a cost control relay KA, a manual automatic change-over switch SA, a time delay relay KT, a contactor KM, a manual switch SB1, a manual brake-off switch SB2, an owing indicator lamp L1, a closing indicator lamp L2 and a brake-off indicator lamp L3.
The specific implementation mode is as follows:
as shown in fig. 1, the time-delay starting circuit of the universal circuit breaker with the cost control function comprises a cost control loop, a time-delay loop, a contactor KM loop, an energy storage motor loop and a manual opening loop which are connected in parallel; the cost control loop is formed by connecting a normally open contact of the cost controller and a coil of the cost control relay KA in series; the time delay loop is formed by connecting an automatic end contact of the manual-automatic change-over switch SA, a normally closed contact of the fee control relay KA, a normally closed auxiliary contact of the universal circuit breaker QF and a coil of the time delay relay KT in series; a normally open contact of the time delay relay KT is connected with the manual control loop in parallel and then is connected with a normally closed contact of the cost control relay KA, a normally closed auxiliary contact of the universal circuit breaker QF and a coil of the contactor KM in series to form an energy storage motor loop; the manual control loop is formed by connecting a manual switch SB1 and a normally open contact of a contactor KM in parallel in series with a manual end contact of a manual-automatic change-over switch SA; the energy storage motor loop is formed by connecting a normally open contact of the contactor KM and an energy storage motor control branch coil of a universal circuit breaker QF in a remote control loop in series; the manual brake-separating loop is formed by connecting a manual brake-separating switch SB2 and a shunt coil control branch coil of a universal circuit breaker QF in a remote control loop in series;
when the automatic control circuit is used for controlling the universal circuit breaker QF to be switched on, the automatic end contact of the manual-automatic change-over switch SA is closed, the normally closed contact of the fee control relay KA does not act at the moment, the universal circuit breaker QF is still in an open stage, the normally closed auxiliary contact of the universal circuit breaker QF is still in a closed state, the delay circuit is electrified, the coil of the delay relay KT is electrified, the normally open contact of the delay relay KT in the contact KM circuit is in a delay closed state, the normally closed auxiliary contact of the universal circuit breaker QF is still in a closed state, the contact KM circuit is electrified, the coil of the contact KM is electrified, the normally open contact of the contact KM in the energy storage motor circuit is closed, the energy storage motor controls the branch circuit to be electrified, the energy storage motor of the universal circuit breaker QF stores energy, the remote control circuit can control the universal circuit breaker QF to be switched on, the normally closed auxiliary contact of the universal circuit breaker QF in the delay circuit and the contact KM circuit is switched on, the coil of the time delay relay KT and the coil of the contactor KM are both in power loss, a normally open contact of the contactor KM is disconnected, the energy storage motor controls the branch line coil to be in power loss, the energy storage motor of the universal circuit breaker QF stops storing energy, and the switching-on process of the universal circuit breaker QF is completed; the delay closing of the delay relay KT is utilized, the energy storage motor of the universal circuit breaker QF works in a delay mode, the remote control loop controls the universal circuit breaker QF to be switched on in a delay mode, a user power grid is not connected into a power supply power grid at the moment of power transmission, and lines, cables and other equipment in the user power grid cannot receive impact of large current, so that secondary faults caused by the large current are avoided, the safety power utilization safety of a user side is guaranteed, and the property safety of users is guaranteed;
when manual power transmission is adjusted, a manual end contact of a manual automatic transfer switch SA is closed, a manual switch SB1 is pressed, a manual control loop is connected, a contactor KM loop is electrified, a contactor KM coil is electrified, a normally open contact of a contactor KM in the manual control loop is closed to form self locking, the normally open contact of the contactor KM in the energy storage motor loop is closed, an energy storage motor control branch line is electrified, an energy storage motor of a universal circuit breaker QF stores energy, at the moment, a remote control loop can control the universal circuit breaker QF to be switched on, after the switch-on, a normally closed auxiliary contact of the universal circuit breaker QF in the contactor KM loop is disconnected, the contactor KM coil is electrified, the normally open contact of the contactor KM is disconnected, and one-time manual switch-on is completed;
when the user account has the cost, the normally open contact can not be closed by the cost controller, and the action process is normally carried out; when the user account has no cost, the normally open contact is closed, the cost control loop is electrified, the cost control relay KA is electrified, the normally closed contacts of the cost control relay KA in the delay loop and the contactor KM loop are both disconnected, the delay loop and the contactor KM loop are disconnected, the energy storage motor of the universal circuit breaker QF cannot store energy, and the universal circuit breaker QF cannot be switched on;
when the brake is required to be opened, a manual brake-opening switch SB2 in the manual brake-opening loop is pressed, a shunt coil of the universal circuit breaker QF is electrified, and the universal circuit breaker QF is opened under the action of a shunt release.
The system also comprises an arrearage indicating loop which is connected with the energy storage motor loop in parallel, wherein the arrearage indicating loop is formed by connecting a normally open contact of a cost control relay KA and an arrearage indicating lamp L1 in series; when the user account has no cost, the normally open contact is closed, the cost control loop is electrified, the cost control relay KA is electrified, the normally open contact of the cost control relay KA in the arrearage indicating loop is closed, and the arrearage indicating lamp L1 is electrified to emit light to play a role in warning and prompting.
The energy storage motor control system also comprises a closing indication loop and an opening indication loop which are connected with the energy storage motor loop in parallel, wherein the closing indication loop is formed by connecting a normally-open auxiliary contact of the universal circuit breaker QF and a closing indicator lamp L2 in series, and the opening indication loop is formed by connecting a normally-closed auxiliary contact of the universal circuit breaker QF and an opening indicator lamp L3 in series; when the universal circuit breaker QF is in switching-off, the switching-on indicating circuit is not switched on, the switching-on indicating lamp L2 is not electrified and does not emit light, the switching-off indicating circuit is switched on, and the switching-off indicating lamp L3 is electrified and emits light; when the universal circuit breaker QF is switched on, the normally open auxiliary contact of the universal circuit breaker QF in the switching-on indicating circuit is closed, the normally closed auxiliary contact of the switching-off indicating circuit is disconnected, the switching-on indicating circuit is switched on, the switching-on indicating lamp L2 is electrified and emits light, the switching-off indicating circuit is not switched on, and the switching-off indicating lamp L3 is not electrified and does not emit light, so that the warning and prompting functions are realized.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A time-delay starting circuit of a universal circuit breaker with a cost control function is characterized by comprising a cost control loop, a time-delay loop, a contactor loop, an energy storage motor loop and a manual opening loop which are connected in parallel;
the fee control loop is formed by connecting a normally open contact of the fee controller and a coil of the fee control relay in series;
the time delay loop is formed by connecting an automatic end contact of the manual-automatic change-over switch, a normally closed contact of the fee control relay, a normally closed auxiliary contact of the universal circuit breaker and a coil of the time delay relay in series;
the normally open contact of the time delay relay is connected with the manual control circuit in parallel and then is connected with the normally closed contact of the cost control relay, the normally closed auxiliary contact of the universal circuit breaker and the coil of the contactor in series to form an energy storage motor circuit;
the manual control loop is formed by connecting a manual switch and a normally open contact of a contactor in parallel in series with a manual end contact of a manual automatic change-over switch;
the energy storage motor loop is formed by connecting a normally open contact of a contactor and an energy storage motor control branch coil of a universal circuit breaker in a remote control loop in series;
the manual opening circuit is formed by connecting a manual opening switch and a shunt coil control branch coil of a universal circuit breaker in a remote control circuit in series.
2. The time-delay starting circuit of the universal circuit breaker with the charge control function as claimed in claim 1, further comprising an arrearage indicating circuit connected in parallel with the energy storage motor circuit, wherein the arrearage indicating circuit is formed by connecting a normally open contact of a charge control relay and an arrearage indicating lamp in series.
3. The time-delay starting circuit of the universal circuit breaker with the cost control function as claimed in claim 1 or 2, further comprising a closing indication circuit and a breaking indication circuit connected in parallel with the energy storage motor circuit, wherein the closing indication circuit is formed by connecting a normally open auxiliary contact of the universal circuit breaker with a closing indication lamp in series, and the breaking indication circuit is formed by connecting a normally closed auxiliary contact of the universal circuit breaker with a breaking indication lamp in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220611781.8U CN217134236U (en) | 2022-03-18 | 2022-03-18 | Universal circuit breaker delay starting circuit with cost control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220611781.8U CN217134236U (en) | 2022-03-18 | 2022-03-18 | Universal circuit breaker delay starting circuit with cost control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217134236U true CN217134236U (en) | 2022-08-05 |
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ID=82645730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220611781.8U Active CN217134236U (en) | 2022-03-18 | 2022-03-18 | Universal circuit breaker delay starting circuit with cost control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217134236U (en) |
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2022
- 2022-03-18 CN CN202220611781.8U patent/CN217134236U/en active Active
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