CN219329612U - Emergency bus segment control circuit - Google Patents
Emergency bus segment control circuit Download PDFInfo
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- CN219329612U CN219329612U CN202320042454.XU CN202320042454U CN219329612U CN 219329612 U CN219329612 U CN 219329612U CN 202320042454 U CN202320042454 U CN 202320042454U CN 219329612 U CN219329612 U CN 219329612U
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Abstract
The utility model relates to an emergency bus segment control circuit, which adopts the arrangement of a breaker on a three-phase power supply; connected to the emergency bus-section by a circuit breaker; setting a current transformer on the emergency bus section; a leakage protector is arranged on one side of the current transformer; after the outputs of the current transformer and the leakage protector are connected to the controller and the emergency contact in parallel, the circuit breaker is controlled to control the output of the emergency bus segment, so that the application of the emergency bus segment control circuit applicable to the emergency field, especially the fire emergency and the like is realized, and the technical problems that the existing bus segment control circuit generally has no function of controlling the emergency bus segment and cannot be applied to the emergency field, especially the fire emergency and the like are solved.
Description
Technical Field
The embodiment of the utility model relates to a bus section control circuit, in particular to an emergency bus section control circuit.
Background
The existing bus section control circuit generally has no function of emergency bus section control, cannot be applied to the emergency field, particularly in the aspect of fire emergency and the like, and needs to be developed.
Disclosure of Invention
An object of an embodiment of the utility model is to provide an emergency bus-section control circuit suitable for use in the field of emergency, in particular in the field of fire emergency and the like.
In order to achieve the above object, an embodiment of the present utility model provides an emergency bus-section control circuit, including:
a three-phase power supply;
the circuit breaker is arranged on the three-phase power supply; the circuit breaker is connected to the emergency bus section;
the current transformer is arranged on the emergency bus section;
the leakage protector is arranged on one side of the current transformer;
and the controller is used for controlling the circuit breaker and controlling the output of the emergency bus section after the outputs of the current transformer and the leakage protector are connected to the controller and the emergency contact in parallel.
Further, the emergency bus segment control circuit is connected with the three-phase power supply at the inlet wire end of the circuit breaker; the current transformer is sleeved on the outgoing line end of the circuit breaker; and the leakage protector is arranged below the current transformer on the outlet end of the circuit breaker.
Further, the emergency bus segment control circuit, the control circuit further includes:
the control power supply takes any one phase of the three-phase power supply; the control power supply is connected to one end of the fuse; the other end of the fuse is connected to the incoming line end of the emergency contact; the other end of the fuse is connected to the DO11 end of the controller;
after the outlet end of the emergency contact is connected with the DO12 end of the controller in parallel; the coil outgoing end of the circuit breaker is connected to a zero line;
the other end of the fuse is connected to the wire inlet end of the first normally open contact of the circuit breaker; the outgoing line end of the first normally open contact of the circuit breaker is connected to the incoming line end of the coil of the first relay; the coil outlet end of the first relay is connected to the zero line;
the other end of the fuse is connected to the wire inlet end of the first normally open contact of the first relay; the outgoing line end of the first normally open contact of the first relay is connected to the incoming line end of the first indicator lamp; the outgoing line end of the first indicator lamp is connected to the zero line;
the other end of the fuse is connected to the wire inlet end of the first normally-closed contact of the circuit breaker; the outgoing line end of the first normally closed contact of the circuit breaker is connected to the incoming line end of the second indicator lamp; the outlet end of the second indicator lamp is connected to the zero line;
the other end of the fuse is connected to the DO41 end of the controller; the DO42 end of the controller is connected to the inlet end of the third indicator lamp; the outlet end of the third indicator lamp is connected to the zero line;
and the other end of the fuse and the zero line are respectively connected to a power supply of the controller.
Further, the emergency bus segment control circuit is characterized IN that an IA end, an IB end, an IC end and an IN end on the controller are respectively connected to an Ia end, an Ib end, an IC end and an IN end of the current transformer;
the VA end, the VB end and the VC end of the controller are respectively connected with an input power supply after passing through the first fuse, the second fuse and the third fuse;
the IR1 end and the IR2 end on the controller are respectively connected with two ends of the leakage protector;
the power end of the controller is connected to one end of a second normally open contact of the first relay and one end of a second normally open contact of the circuit breaker respectively; the other ends of the second normally open contact of the first relay and the second normally open contact of the circuit breaker are respectively connected to a DI1 end and a DI2 end on the controller.
Further, the emergency contact is a contact output by the fire jump device.
Further, the emergency bus segment control circuit is characterized in that the controller is a PMC-550F series controller.
Further, the emergency bus segment control circuit is a 3VA series shunt series breaker with auxiliary alarm.
Further, the emergency bus segment control circuit is characterized in that the current transformer is an MTA-400A-T series current transformer.
Further, the emergency bus segment control circuit is characterized in that the leakage protector is an MIR series leakage protector.
Compared with the prior art, the implementation mode of the utility model adopts the arrangement of the circuit breaker on the three-phase power supply; connected to the emergency bus-section by a circuit breaker; setting a current transformer on the emergency bus section; a leakage protector is arranged on one side of the current transformer; and after the outputs of the current transformer and the leakage protector are connected to the controller and are connected with the emergency contacts in parallel, the circuit breaker is controlled, and the output of the emergency bus section is controlled. After the outputs of the current transformer and the leakage protector are connected to the controller and are connected in parallel with the emergency contacts, the mode of controlling the circuit breaker to control the output of the emergency bus segment is realized, the application of the emergency bus segment control circuit applicable to the emergency field, especially the fire emergency and the like is realized, the technical problems that the existing bus segment control circuit generally has no function of emergency bus segment control, cannot be applied to the emergency field, especially the fire emergency and the like, and the existing bus segment control circuit cannot be applicable to the emergency field, especially the fire emergency and the like are solved.
Drawings
FIG. 1 is a schematic diagram of a main circuit of the present utility model;
FIG. 2 is a schematic diagram of a control circuit according to the present utility model;
fig. 3 is a schematic structural diagram of a controller according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be realized without these technical details and various changes and modifications based on the following embodiments.
Embodiments of the present utility model relate to an emergency bus-section control circuit, as shown in fig. 1, 2 and 3, comprising:
the three-phase power supplies L1, L2, L3 in the present embodiment are power supplies as inputs;
a breaker QF is arranged on the three-phase power supplies L1, L2 and L3; connect to the emergency bus-section through the breaker QF; the circuit breaker QF is used for power-off in case of occurrence of a situation, especially in case of emergency of fire.
Setting current transformers TA1, TA2 and TA3 on the emergency bus segment; the current transformers TA1, TA2, TA3 are used to detect the detection current of the emergency bus-section control circuit in this embodiment. The occurrence of an overcurrent condition of the emergency bus-section control circuit in this embodiment is prevented.
The leakage protector T0 is arranged on one side of the current transformers TA1, TA2 and TA3; the leakage protector T0 is used to detect a detected leakage current of the emergency bus-section control circuit in this embodiment, and prevent the occurrence of a leakage condition of the emergency bus-section control circuit in this embodiment.
The outputs of the current transformers TA1, TA2 and TA3 and the leakage protector T0 are connected to the controller TPU; the controller TPU controls the current transformers TA1, TA2 and TA3 and the leakage protector T0, prevents the overcurrent condition and the leakage condition of the emergency bus segment control circuit in the embodiment, and timely controls the breaker QF to cut off the power supply if the conditions such as fire occur.
In the control circuit, after the controller TPU is connected with the emergency contact KF in parallel, the circuit breaker QF is controlled, and the output of the emergency bus section is controlled. The emergency bus segment control circuit in the embodiment realizes the application of the emergency bus segment control circuit which is applicable to the emergency field, particularly the fire emergency and the like, and solves the technical problems that the existing bus segment control circuit generally has no function of emergency bus segment control and cannot be applied to the emergency field, particularly the fire emergency and the like, and the existing bus segment control circuit cannot be applicable to the emergency field, particularly the fire emergency and the like.
In order to achieve the above technical effects, in the emergency bus-section control circuit in this embodiment, as shown in fig. 1, 2 and 3, three-phase power sources L1, L2 and L3 are connected to the incoming line end of the circuit breaker QF; the outgoing line end of the breaker QF is sleeved with current transformers TA1, TA2 and TA3; on the outgoing line end of the breaker QF, a leakage protector T0 is arranged below the current transformers TA1, TA2 and TA 3. The current transformers TA1, TA2, TA3 and the leakage protector T0 respectively prevent the occurrence of an overcurrent condition and a leakage condition of the emergency bus-section control circuit in the embodiment, for example, a fire disaster and the like, and timely control the circuit breaker QF to cut off the power supply.
In order to achieve the above technical effects, the emergency bus-section control circuit in this embodiment, as shown in fig. 1, 2 and 3, further includes:
the control power supply L1 of the emergency bus segment control circuit in the embodiment adopts L1 phases in three-phase power supplies L1, L2 and L3, and the control power supply takes any one phase in the three-phase power supplies L1, L2 and L3; the control power supply L1 is connected to one end of the fuse FU; the other end of the fuse FU is connected to the wire inlet end of the emergency contact KF; the other end of the fuse FU is connected to the DO11 end of the controller TPU; the fuse FU is used to protect the control power supply L1.
After the wire outlet end of the emergency contact KF is connected in parallel with the DO12 end of the controller TPU; the coil outlet end of the circuit breaker QF is connected to the zero line N; the function that the emergency contact KF and the controller TPU control the disconnection of the emergency contact KF is realized after the wire outlet end of the emergency contact KF is connected with the DO12 end of the controller TPU in parallel.
The other end of the fuse FU is connected to the wire inlet end of the first normally open contact QF-1 of the circuit breaker; the outlet end of the first normally open contact QF-1 of the circuit breaker is connected to the inlet end of the coil of the first relay KA; the coil outlet end of the first relay KA is connected to the zero line N; the primary function of the first relay KA is to extend the contacts of the circuit breaker QF.
The other end of the fuse FU is connected to the wire inlet end of the first normally open contact KA-1 of the first relay; the outgoing line end of the first normally open contact KA-1 of the first relay is connected to the incoming line end of the first indicator lamp HR; the outgoing line end of the first indicator lamp HR is connected to a zero line N; the first indicator lamp HR is used for prompting closing of the circuit breaker QF.
The other end of the fuse FU is connected to the wire inlet end of a first normally-closed contact QF-2 of the circuit breaker; the outgoing line end of the first normally closed contact QF-2 of the circuit breaker is connected to the incoming line end of the second indicator lamp HG; the wire outlet end of the second indicator lamp HG is connected to the zero line N; the second indicator light HG is used for prompting the opening of the breaker QF.
The other end of the fuse FU is connected to the DO41 end of the controller TPU; the DO42 end of the controller TPU is connected to the inlet wire end of the third indicator lamp HY; the outlet end of the third indicator lamp HY is connected to the zero line N; the third indicator light HY is used for giving error notification to the fault of the emergency bus segment control circuit.
At the other end of the fuse FU and the neutral line N are connected to a power supply L, N of the controller TPU, respectively. The controller TPU is powered.
IN order to achieve the above technical effects, IN the emergency bus segment control circuit IN this embodiment, as shown IN fig. 1, 2 and 3, the IA end, the IB end, the IC end and the IN end on the controller TPU are respectively connected to the IA end, the IB end, the IC end and the IN end of the current transformers TA1, TA2 and TA3; this allows the controller TPU to over-flow the emergency bus segment control circuit of this embodiment.
The VA end, the VB end and the VC end on the controller TPU are respectively connected with input power supplies L11, L12 and L13 after passing through a first fuse FU1, a second fuse FU2 and a third fuse FU 3; thus, the controller TPU can perform voltage loss control on the emergency bus segment control circuit of the embodiment, and fault reporting can be performed once a problem exists.
The IR1 end and the IR2 end on the controller TPU are respectively connected with the two ends of the leakage protector T0; thus, the controller TPU can perform electric leakage on the emergency bus segment control circuit of the embodiment and perform fault error reporting.
On the controller TPU, the DIC end of the power supply end of the controller is respectively connected to one end of a second normally open contact KA-2 of the first relay and one end of a second normally open contact QF-3 of the circuit breaker; the other ends of the second normally open contact KA-2 of the first relay and the second normally open contact QF-3 of the breaker are respectively connected to the DI1 end and the DI2 end of the controller TPU. Therefore, the controller TPU can report faults to whether the contacts of the breaker QF in the emergency bus section control circuit of the embodiment complete the switching-on and switching-off states.
In order to achieve the above technical effects, in the emergency bus segment control circuit in this embodiment, as shown in fig. 1 and fig. 2, the emergency contact KF is a contact output by the fire jump device. Therefore, under the condition that the fire disaster jump device outputs, the breaker QF is timely cut off.
In order to achieve the technical effects described above, the emergency bus segment control circuit in this embodiment, as shown in fig. 1, 2 and 3, is a PMC-550F series controller. The controller TPU is mainly used for protecting the conditions of overcurrent, voltage loss, leakage current and the like of the breaker QF, and when a problem occurs, the breaker QF is subjected to opening operation.
In order to achieve the above technical effects, in the emergency bus segment control circuit in this embodiment, as shown in fig. 1, 2 and 3, the circuit breaker QF is a 3VA series circuit breaker with auxiliary alarm shunt.
In order to achieve the above technical effects, in the emergency bus segment control circuit in this embodiment, as shown in fig. 1, 2 and 3, the current transformers TA1, TA2 and TA3 are MTA-400A-T series current transformers. The current transformers TA1, TA2 and TA3 are used for detecting the current condition of the breaker QF, and if the overcurrent condition occurs, the controller TPU performs opening operation on the breaker QF.
In order to achieve the above technical effects, in the emergency bus segment control circuit of this embodiment, as shown in fig. 1, 2 and 3, the leakage protector T0 is a MIR series leakage protector. The leakage protector T0 mainly plays a role in detecting leakage current.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (9)
1. An emergency bus-section control circuit, comprising:
three-phase power supplies L1, L2 and L3;
the breaker QF is arranged on the three-phase power supplies L1, L2 and L3; is connected to the emergency bus-section through the breaker QF;
the current transformers TA1, TA2 and TA3 are arranged on the emergency bus segment;
the leakage protector T0 is arranged on one side of the current transformers TA1, TA2 and TA3;
the outputs of the current transformers TA1, TA2 and TA3 and the leakage protector T0 are connected to the controller TPU;
in the control circuit, after the controller TPU is connected with the emergency contact KF in parallel, the circuit breaker QF is controlled, and the output of the emergency bus section is controlled.
2. The emergency bus-section control circuit according to claim 1, wherein the three-phase power sources L1, L2, L3 are connected at the incoming line end of the circuit breaker QF; the current transformers TA1, TA2 and TA3 are sleeved on the outgoing line end of the circuit breaker QF; and the leakage protector T0 is arranged below the current transformers TA1, TA2 and TA3 on the outlet end of the circuit breaker QF.
3. The emergency bus-section control circuit of claim 1, further comprising:
the control power supply L1, wherein the control power supply L1 takes any one phase of the three-phase power supplies L1, L2 and L3; the control power supply L1 is connected to one end of the fuse FU; the other end of the fuse FU is connected to the incoming line end of the emergency contact KF; the other end of the fuse FU is connected to the DO11 end of the controller TPU;
the outlet end of the emergency contact KF is connected in parallel with the DO12 end of the controller TPU; the coil outlet end of the circuit breaker QF is connected to a zero line N;
the other end of the fuse FU is connected to the wire inlet end of the first normally open contact QF-1 of the circuit breaker; the outlet end of the first normally open contact QF-1 of the circuit breaker is connected to the inlet end of the coil of the first relay KA; the outlet end of the coil of the first relay KA is connected to a zero line N;
the other end of the fuse FU is connected to the wire inlet end of a first normally open contact KA-1 of the first relay; the outgoing line end of the first normally open contact KA-1 of the first relay is connected to the incoming line end of the first indicator lamp HR; the outgoing line end of the first indicator lamp HR is connected to a zero line N;
the other end of the fuse FU is connected to the inlet terminal of the first normally-closed contact QF-2 of the circuit breaker; the outgoing line end of the first normally-closed contact QF-2 of the circuit breaker is connected to the incoming line end of the second indicator lamp HG; the outgoing line end of the second indicator lamp HG is connected to a zero line N;
the other end of the fuse FU is connected to the DO41 end of the controller TPU; the DO42 end of the controller TPU is connected to the inlet wire end of the third indicator lamp HY; the outlet end of the third indicator lamp HY is connected to a zero line N;
the other end of the fuse FU and the zero line N are connected to a power source L, N of the controller TPU, respectively.
4. The emergency bus segment control circuit of claim 1, wherein the IA, IB, IC, IN terminals on the controller TPU are connected to the IA, IB, IC, IN terminals of the current transformers TA1, TA2, TA3, respectively;
the VA end, the VB end and the VC end of the controller TPU are respectively connected with input power sources L11, L12 and L13 after passing through a first fuse FU1, a second fuse FU2 and a third fuse FU 3;
the IR1 end and the IR2 end of the controller TPU are respectively connected with the two ends of the leakage protector T0;
the controller TPU is connected to one end of a second normally open contact KA-2 of the first relay and one end of a second normally open contact QF-3 of the circuit breaker at the DIC end of the power supply end of the controller; the other ends of the second normally open contact KA-2 of the first relay and the second normally open contact QF-3 of the breaker are respectively connected to the DI1 end and the DI2 end of the controller TPU.
5. The emergency bus segment control circuit of claim 1 wherein the emergency contact KF is the contact of the fire trip unit output.
6. The emergency bus-section control circuit of claim 4 wherein the controller TPU is a PMC-550F series controller.
7. The emergency bus-section control circuit of claim 1 wherein the circuit breaker QF is a 3VA series circuit breaker with auxiliary alarm shunt.
8. The emergency bus segment control circuit of claim 1 wherein the current transformers TA1, TA2, TA3 are MTA-400A-T series current transformers.
9. The emergency bus-section control circuit of claim 4 wherein the leakage protector T0 is a MIR series leakage protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320042454.XU CN219329612U (en) | 2023-01-09 | 2023-01-09 | Emergency bus segment control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320042454.XU CN219329612U (en) | 2023-01-09 | 2023-01-09 | Emergency bus segment control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219329612U true CN219329612U (en) | 2023-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320042454.XU Active CN219329612U (en) | 2023-01-09 | 2023-01-09 | Emergency bus segment control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219329612U (en) |
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2023
- 2023-01-09 CN CN202320042454.XU patent/CN219329612U/en active Active
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