CN116014683A - Emergency bus segment control circuit - Google Patents
Emergency bus segment control circuit Download PDFInfo
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- CN116014683A CN116014683A CN202310023193.1A CN202310023193A CN116014683A CN 116014683 A CN116014683 A CN 116014683A CN 202310023193 A CN202310023193 A CN 202310023193A CN 116014683 A CN116014683 A CN 116014683A
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- circuit breaker
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Abstract
The invention 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 invention 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 invention 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 invention 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 light; 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 invention 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 invention;
FIG. 2 is a schematic diagram of a control circuit according to the present invention;
fig. 3 is a schematic structural diagram of a controller according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention 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 invention, 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 invention 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 supply (L1, L2, L3); connected to the emergency bus-section by a circuit breaker (QF); circuit breakers (QF) are used to power down in situations, especially in the event of a fire emergency.
Setting current transformers (TA 1, TA2 and TA 3) on the emergency bus segment; the current transformers (TA 1, TA2, TA 3) 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 (TA 1, TA2 and TA 3); the leakage protector (T0) is used to detect the detected leakage current of the emergency bus-section control circuit in this embodiment, and prevent the occurrence of the leakage condition of the emergency bus-section control circuit in this embodiment.
The outputs of the current transformers (TA 1, TA2, TA 3) and the leakage protector (T0) are connected to a controller (TPU); the controller (TPU) controls the current transformers (TA 1, TA2 and TA 3) and the leakage protector (T0) to prevent the overcurrent condition and the leakage condition of the emergency bus segment control circuit in the embodiment, such as fire and the like, and timely controls the breaker (QF) to cut off the power supply.
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, a three-phase power supply (L1, L2 and L3) is connected to the line-in end of a circuit breaker (QF); the outgoing line end of the circuit breaker (QF) is sleeved with current transformers (TA 1, TA2 and TA 3); on the outgoing line end of the circuit breaker (QF), a leakage protector (T0) is arranged below the current transformers (TA 1, TA2, TA 3). The current transformers (TA 1, TA2, TA 3) and the leakage protector (T0) respectively prevent the occurrence of overcurrent and leakage of the emergency bus segment control circuit in the embodiment, and timely control the circuit breaker (QF) to cut off the power supply if a fire or the like occurs.
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 the L1 phase in the three-phase power supplies (L1, L2 and L3), and the control power supply adopts any one phase in the three-phase power supplies (L1, L2 and L3); a 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 Fuse (FU) is used for protecting 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 wire outlet end of the circuit breaker (QF) is connected to the zero wire (N); the function of the emergency contact (KF) and the controller (TPU) for controlling 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 a 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 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 a first normally open contact (KA-1) of the first relay; the outlet end of the first normally open contact (KA-1) of the first relay is connected to the inlet end of the first indicator lamp (HR); the outlet end of the first indicator lamp (HR) is connected to a zero line (N); the first indicator light (HR) is used for prompting the 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 outlet end of the first normally closed contact (QF-2) of the circuit breaker is connected to the inlet end of the second indicator lamp (HG); the 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.
The other end of the Fuse (FU) and the zero line (N) are connected to a power supply (L, N) of the controller (TPU), respectively. Providing power to a controller (TPU).
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, the IA end, IB end, IC end and IN end on the controller (TPU) are respectively connected to the IA end, IB end, IC end and IN end of the current transformer (TA 1, TA2 and TA 3); this allows for over-flow control of the emergency bus-section control circuit of the present embodiment at the controller (TPU).
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 (FU 1), a second fuse (FU 2) 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 reporting.
On the controller (TPU), the power end (DIC) 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) and the second normally open contact (QF-3) of the first relay 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 circuit breaker (QF) in the emergency bus section control circuit of the embodiment complete the state of closing and opening.
In order to achieve the above technical effects, in the emergency bus segment control circuit in this embodiment, as shown in fig. 1 and 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 above technical effects, 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 circuit breaker (QF), and when a problem occurs, the circuit 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 (TA 1, TA2 and TA 3) are MTA-400A-T series current transformers. The current transformers (TA 1, TA2, TA 3) are used for detecting the current condition of the circuit breaker (QF), and if an overcurrent condition occurs, the controller (TPU) performs the opening operation on the circuit breaker (QF).
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 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 invention and that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. An emergency bus-section control circuit, comprising:
a three-phase power supply (L1, L2, L3);
a breaker (QF) provided on the three-phase power supply (L1, L2, L3); is connected to the emergency bus-section by means of said circuit breaker (QF);
the current transformers (TA 1, TA2 and TA 3) are arranged on the emergency bus segment;
a leakage protector (T0), wherein the leakage protector (T0) is arranged at one side of the current transformers (TA 1, TA2 and TA 3);
the outputs of the current transformers (TA 1, TA2 and TA 3) 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. Emergency bus-section control circuit according to claim 1, characterized in that said three-phase power supply (L1, L2, L3) is connected at the incoming line end of said circuit breaker (QF); the current transformers (TA 1, TA2 and TA 3) are sleeved on the outlet end of the circuit breaker (QF); and the leakage protector (T0) is arranged below the current transformers (TA 1, TA2 and TA 3) on the outlet end of the circuit breaker (QF).
3. The emergency bus-section control circuit of claim 1, further comprising:
a control power supply (L1) which 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); a coil wire outlet end of the circuit breaker (QF) is connected to a zero wire (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 outlet end of the first normally open contact (KA-1) of the first relay is connected to the inlet 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 wire inlet end 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 outlet 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);
and a power supply (L, N) connected to the controller (TPU) at the other end of the Fuse (FU) and the zero line (N) respectively.
4. Emergency bus-section control circuit according to claim 1, characterized IN that the IA, IB, IC, IN terminals on the controller (TPU) are connected to the IA, IB, IC, IN terminals of the current transformers (TA 1, TA2, TA 3), respectively;
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 (FU 1), a second fuse (FU 2) 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);
on the controller (TPU), the power end (DIC) 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 breaker; the other ends of the second normally open contact (KA-2) and the second normally open contact (QF-3) of the first relay 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 control of a large motor start-stop circuit using a controller according to claim 4, wherein said controller (TPU) is a PMC-550F series controller.
7. The control of a large motor start-stop circuit using a controller according to claim 1, wherein the circuit breaker (QF) is a 3VA series shunt circuit breaker with auxiliary alarm.
8. The large motor start-stop circuit controlled by the controller according to claim 1, wherein the current transformers (TA 1, TA2, TA 3) are MTA-400A-T series current transformers.
9. The controller-controlled large motor start-stop circuit according to claim 4, wherein the leakage protector (T0) is a MIR series leakage protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023193.1A CN116014683A (en) | 2023-01-09 | 2023-01-09 | Emergency bus segment control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023193.1A CN116014683A (en) | 2023-01-09 | 2023-01-09 | Emergency bus segment control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116014683A true CN116014683A (en) | 2023-04-25 |
Family
ID=86037097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310023193.1A Pending CN116014683A (en) | 2023-01-09 | 2023-01-09 | Emergency bus segment control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116014683A (en) |
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2023
- 2023-01-09 CN CN202310023193.1A patent/CN116014683A/en active Pending
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