CN212540598U - An intelligent and safe power distribution device for grounding system - Google Patents
An intelligent and safe power distribution device for grounding system Download PDFInfo
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Abstract
The utility model relates to an intelligent security distribution device for ground system, concatenate during the use between power supply system and consumer, including control module, the safety protection module, metering module, insulating monitoring module, the fault indication module, fault arc detection module, power module and short-circuit protection module, the safety protection module, metering module, insulating monitoring module, fault arc detection module and short-circuit protection module link to each other with existing ground system respectively, the safety protection module, metering module, insulating monitoring module, fault indication module and fault arc detection module link to each other with control module respectively, control module, insulating monitoring module, fault indication module and fault arc detection module link to each other with power module respectively. Compared with the prior art, the utility model has the advantages of collect safe distribution, fault monitoring and instruction, short circuit and overload protection and show function in an organic whole, security height in real time.
Description
Technical Field
The utility model relates to a safe distribution device especially relates to an intelligent security distribution device for ground system.
Background
People's daily life can not leave the electricity, to most users, considers the problem of cost, all uses the ground system, takes place the electric shock accident easily, and when taking place short circuit fault, causes the outage, has influenced the security and the reliability of power consumption. In the prior art, an isolation transformer is generally connected into a system to change a grounding system into an ungrounded system for guaranteeing the safety and continuity of power supply, but the monitoring and protection of the system are lacked, so that the running information of the system cannot be fed back to a user in time, and a fault loop cannot be cut off quickly when a short-circuit fault occurs in a line, the risk of fire is reduced, and the personal and property safety is guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an intelligent security distribution device for ground system who collects safe distribution, fault monitoring and instruction, short circuit and overload protection and show function in an organic whole, security height in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
an intelligent safety power distribution device for a grounding system is connected in series between a power supply system and electric equipment during use, and comprises a control module, a safety protection module, a metering module, an insulation monitoring module, a fault indication module, a fault arc detection module, a power supply module and a short-circuit protection module; the safety protection module, the metering module, the insulation monitoring module, the fault arc detection module and the short-circuit protection module are respectively connected with an existing grounding system; the safety protection module, the metering module, the insulation monitoring module, the fault indication module and the fault arc detection module are respectively connected with the control module; the control module, the insulation monitoring module, the fault indication module and the fault arc detection module are respectively connected with the power supply module.
Preferably, the safety protection module comprises a circuit breaker and an isolation transformer; one end of the breaker is connected with a power supply system, and the other end of the breaker is connected with an isolation transformer; and the control end of the circuit breaker is connected with the control module.
Preferably, the metering module is a three-phase metering chip.
Preferably, the insulation monitoring module is provided with a signal generator.
Preferably, the fault indication module comprises an operation state indicator light, a communication state indicator light and a fault indicator light; the fault indicator lamp comprises an insulation fault indicator lamp, a short-circuit fault indicator lamp, an overload fault indicator lamp and a fault arc indicator lamp.
Preferably, the fault arc detection module is a fault arc detector.
Preferably, the safety power distribution device is provided with a display module; the display module is connected with the control module and is powered by the power module.
More preferably, the display module is an LCD liquid crystal display.
Preferably, the short-circuit protection module comprises a short-circuit protection power supply, a signal acquisition module, a short-circuit protection controller and a solid-state switch; the solid-state switch is arranged in an ungrounded system; and the short-circuit protection power supply, the signal acquisition module and the solid-state switch are respectively connected with the short-circuit protection controller.
More preferably, the signal acquisition module is a current transformer.
Compared with the prior art, the utility model has the advantages of it is following:
the safety power distribution device of the utility model integrates the functions of safety power distribution, fault monitoring and indication, short circuit and overload protection and real-time display, and the safety of power utilization is taken into account while the reliability of power supply is ensured; meanwhile, a microsecond-level solid-state switch is adopted, so that a fault loop can be quickly cut off when a short circuit or overload fault occurs, and the possibility of fire disaster is reduced; the safety power distribution device is also provided with a fault arc detector, so that fault arcs generated by the system can be quickly detected, and the safety of the system is further improved.
Drawings
Fig. 1 is a schematic structural view of a main body of a middle safety power distribution device of the present invention;
fig. 2 is a schematic structural diagram of a middle short-circuit protection module according to the present invention;
fig. 3 is a schematic structural diagram of the middle short-circuit protection module of the present invention installed in an ungrounded system.
The reference numbers in the figures indicate:
1. the device comprises a control module, 2, a safety protection module, 3, a metering module, 4, an insulation monitoring module, 5, a fault indication module, 6, a fault arc detection module, 7, a power supply module, 8, a short-circuit protection module, 9, a display module, 801, a short-circuit protection power supply, 802, a signal acquisition module, 803, a short-circuit protection controller, 804 and a solid-state switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Example 1:
an intelligent safety power distribution device for a grounding system is connected between a power supply system and electric equipment in series when in use, and the main structure of the intelligent safety power distribution device is shown in figure 1 and comprises: control module 1, safety protection module 2, metering module 3, insulating monitoring module 4, fault indication module 5, fault arc detection module 6, power module 7 and short-circuit protection module 8, safety protection module 2, metering module 3, insulating monitoring module 4, fault arc detection module 6 and short-circuit protection module 8 link to each other with existing ground system respectively, safety protection module 2, metering module 3, insulating monitoring module 4, fault indication module 5 and fault arc detection module 6 link to each other with control module 1 respectively, control module 1, insulating monitoring module 4, fault indication module 5 and fault arc detection module 6 link to each other with power module 7 respectively. The short-circuit protection module 8 is schematically shown in fig. 2.
The control module 1 adopts an STM32 single-chip microcomputer and is used for processing signals collected by the metering module 3 and controlling the safety protection module 2, the metering module 3, the insulation monitoring module 4, the fault indication module 5 and the fault arc detection module 6;
the safety protection module 2 comprises a circuit breaker and an isolation transformer, one end of the circuit breaker is connected with a power supply system, the other end of the circuit breaker is connected with the isolation transformer, the control end of the circuit breaker is connected with the control module 1, and the circuit breaker is a circuit breaker which comprises normally open and normally closed contacts and is mutually exclusive;
the metering module 3 is used for collecting electric signals in real time and sending the collected data to the control module 1;
the insulation monitoring module 4 is internally provided with a signal generator which can generate a +/-48V direct current signal.
The fault indicating module 5 comprises an operating state indicating lamp, a communication state indicating lamp and a fault indicating lamp, wherein the fault indicating lamp comprises an insulation fault indicating lamp, a short-circuit fault indicating lamp, an overload fault indicating lamp and a fault arc indicating lamp;
the fault arc detection module 6 selects an Ankeri AAFD-40 fault arc detector;
the power module 7 adopts an independent power supply design, power is not supplied through a power transmission line, and if the current is suddenly increased, the control module 1 controls the circuit breaker to cut off a loop to complete short-circuit protection. Because the power module 7 does not supply power through the power transmission line, the power failure problem of the intelligent safety power distribution device in the embodiment does not need to be considered.
Example 2:
the intelligent safety power distribution device for the grounding system further comprises a display module 8, and the display module 8 is connected with the control module 1; the display module 8 in this embodiment is an LCD liquid crystal display.
The structure of the short-circuit protection module 8 in this embodiment is as shown in fig. 2 and fig. 3, and includes a short-circuit protection power source 801, a signal acquisition module 802, a short-circuit protection controller 803, and a microsecond-level solid-state switch 804, where the solid-state switch 804 is installed in an ungrounded system, and the short-circuit protection power source 801, the signal acquisition module 802, and the solid-state switch 804 are respectively connected to the short-circuit protection controller 803. When the signal acquisition module 802 acquires the condition of sudden increase of current, the short-circuit protection controller 803 controls the solid-state switch to cut off the circuit, so that the possibility of fire is reduced, and the personal and property safety is guaranteed. The signal acquisition module 802 in this embodiment is a current transformer.
The intelligent safety power distribution device in the embodiment has the following functions:
1. safe power distribution: when the device is used, the device is connected between a power supply system and electric equipment in series, and a grounding system is converted into a non-grounding system through an isolation transformer.
2. Fault detection and indication: the control module 1 judges whether the system has insulation fault, short-circuit fault and overload fault through the signal collected by the metering module 3; the device is also provided with a fault arc detector which can detect whether the system generates fault arc or not, so the device can also detect the fault arc; meanwhile, the device is provided with a fault indication module 5 for indicating the running state, the communication state and the faults.
3. Short circuit and overload protection: this device is equipped with the circuit breaker, and the control end of circuit breaker links to each other with control module 1, and when control module 1 was judged the system according to the data that metering module 3 gathered and is short-circuited trouble or overload fault appeared, through the disconnection of circuit breaker control end control circuit breaker, realization short circuit and overload protection.
4. And (3) displaying in real time: the device is provided with a display module 8, the display module 8 is connected with the control module 1, and the display module 8 can display the power consumption data of the system, including current, voltage and electric energy, and can display corresponding fault types.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020796910.6U CN212540598U (en) | 2020-05-13 | 2020-05-13 | An intelligent and safe power distribution device for grounding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020796910.6U CN212540598U (en) | 2020-05-13 | 2020-05-13 | An intelligent and safe power distribution device for grounding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047372A (en) * | 2022-03-03 | 2022-09-13 | 南京华易泰电子科技有限公司 | Short circuit monitoring system based on short circuit monitoring controller |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047372A (en) * | 2022-03-03 | 2022-09-13 | 南京华易泰电子科技有限公司 | Short circuit monitoring system based on short circuit monitoring controller |
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