CN204304420U - User demarcation switch intelligent miniature protective device - Google Patents

User demarcation switch intelligent miniature protective device Download PDF

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Publication number
CN204304420U
CN204304420U CN201520009684.1U CN201520009684U CN204304420U CN 204304420 U CN204304420 U CN 204304420U CN 201520009684 U CN201520009684 U CN 201520009684U CN 204304420 U CN204304420 U CN 204304420U
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CN
China
Prior art keywords
circuit
button
acquisition circuit
control
signal processing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520009684.1U
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Chinese (zh)
Inventor
李志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoding City Semeureka Electric Power Technology Co., Ltd.
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李志刚
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201520009684.1U priority Critical patent/CN204304420U/en
Application granted granted Critical
Publication of CN204304420U publication Critical patent/CN204304420U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of user demarcation switch intelligent miniature protective device, comprise housing equipped mutually and front panel, be provided with control module, three-phase current Acquisition Circuit, switch quantity acquisition circuit, temperature gas Acquisition Circuit, signal processing circuit, A/D change-over circuit, control relay circuit and power module in described housing, front panel be provided with LCDs, status indicator lamp and operation push-button; The input of control module is connected with switch quantity acquisition circuit, signal processing circuit, A/D change-over circuit and operation push-button respectively, the input of signal processing circuit connects temperature gas Acquisition Circuit, and the input of A/D change-over circuit connects three-phase current Acquisition Circuit; The output of control module is connected with control relay circuit and LCDs respectively, and the output of control relay circuit is connected with user demarcation switch and status indicator lamp respectively.The utility model small volume, has switching controlling functions and defencive function simultaneously, easy to use.

Description

User demarcation switch intelligent miniature protective device
Technical field
The utility model relates to technical field of electric control, particularly a kind of intelligent protection device being applied to user demarcation switch.
Background technology
Time breaking down in the user inside that 10kV overhead distribution T connects; if fault is in its inlet wire section; though or fault to occur in inside subscriber's drop switch but its protection act time limit and transformer station's outlet switch protection cooperation not at that time, all can cause transformer station's outlet switch protection breaking.If nature of trouble is permanent, transformer station's unsuccessful reclosing, then the accident in Middle Voltage circle will make whole piece distribution line have a power failure, and thisly commonly in power distribution network involve accident, will make a very bad impression to society.User demarcation switch solves the above-mentioned ideal equipment involving accident, this equipment is installed on the responsibility separation place of 10kV overhead distribution, can realize automatically excising single phase ground fault and automatism isolation phase fault, guarantee the Electrical Safety of non-faulting user.User demarcation switch is usually provided with controller and carries out corresponding actions with control switch body; But the most volume of current controller is comparatively large, parameter can not set, and only can meet switching and control, not have protecting control function, when a failure occurs, large area can be caused, have a power failure for a long time, need after failture evacuation artificially to split to scene to put line operate into, use very inconvenience; And current controller can not carry out corresponding switching action according to the temperature at scene and gas situation, realizes defencive function.
Summary of the invention
The utility model technical issues that need to address are to provide a kind of small volume, easy to use, have the user demarcation switch intelligent protection device of switching controlling functions and defencive function simultaneously.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
User demarcation switch intelligent miniature protective device, comprise housing equipped mutually and front panel, be provided with the control module be independently arranged in PCB, three-phase current Acquisition Circuit, switch quantity acquisition circuit, temperature gas Acquisition Circuit, signal processing circuit, A/D change-over circuit, control relay circuit and power module in described housing, front panel be provided with LCDs, status indicator lamp and operation push-button; Described power module is connected with control module, signal processing circuit, A/D change-over circuit, control relay circuit respectively; The input of described control module is connected with switch quantity acquisition circuit, signal processing circuit, A/D change-over circuit and operation push-button respectively, the input of signal processing circuit connects temperature gas Acquisition Circuit, and the input of A/D change-over circuit connects three-phase current Acquisition Circuit; The output of control module is connected with control relay circuit and LCDs respectively, and the output of control relay circuit is connected with user demarcation switch and status indicator lamp respectively.
Improvement of the present utility model is: the rear board of described housing is provided with magnitude of current input terminal, On-off signal terminal, the collection of temperature gas terminal, control relay circuit lead-out terminal and power supply terminal.
Further improvement of the utility model is: described three-phase current Acquisition Circuit is connected with the current transformer output be arranged in triple line through magnitude of current input terminal; Temperature gas Acquisition Circuit gathers terminal through temperature gas and connects respectively at temperature sensor and gas sensor.
Improvement of the present utility model is also: described operation push-button comprises control button and direction key, and control button and comprise reset key, determine button and return button, direction key comprises button up and down.
Owing to have employed above technical scheme, acquired by the utility model, technological progress is as follows.
The utility model small volume, easy to use, there is switching controlling functions and defencive function simultaneously, after circuit failture evacuation, can operate being positioned at on-the-spot user demarcation switch in control room, very easy to use.The temperature sensor that the utility model is arranged according to scene and gas sensor are used for temperature information and the gas density information of collection site, when abnormal conditions appear in temperature and gas, can be judged in time by control module and carry out abnormal protection.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is terminals subgraph of the present utility model;
Fig. 3 is the structure chart of front panel described in the utility model.
Wherein: 1. LCDs, 2. status indicator lamp, 3. direction key, 4. button, 5. fixing hole is controlled.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
User demarcation switch intelligent miniature protective device; comprise housing equipped mutually and front panel; the control module be independently arranged in PCB, three-phase current Acquisition Circuit, switch quantity acquisition circuit, temperature gas Acquisition Circuit, signal processing circuit, A/D change-over circuit, control relay circuit and power module is provided with in housing; front panel is provided with LCDs 1, status indicator lamp 2 and operation push-button; four edges of front panel are respectively arranged with fixing hole, for being fixed by screw and housing.As shown in Figure 1, the structural representation of front panel as shown in Figure 3, is specially the annexation of each module: power module is connected with control module, signal processing circuit, A/D change-over circuit, control relay circuit respectively, for being its power supply; The input of control module is connected with switch quantity acquisition circuit, signal processing circuit, A/D change-over circuit and operation push-button respectively, the input of signal processing circuit connects temperature gas Acquisition Circuit, and the input of A/D change-over circuit connects three-phase current Acquisition Circuit; The output of control module is connected with control relay circuit and LCDs respectively, and the output of control relay circuit is connected with user demarcation switch and status indicator lamp respectively.
The rear board of the utility model middle shell is provided with magnitude of current input terminal, On-off signal terminal, the collection of temperature gas terminal, control relay circuit lead-out terminal and power supply terminal, the winding diagram of rear board as shown in Figure 2.Magnitude of current input terminal inside and three-phase current Acquisition Circuit, magnitude of current input terminal outside is connected with the current transformer output be arranged in triple line through cable; On-off signal terminal inner is connected with switch quantity acquisition circuit, and outside and various signals collecting terminal is connected; Temperature gas gathers terminal inner and is connected with temperature gas Acquisition Circuit, and outside is connected with temperature sensor and gas sensor respectively; Control relay circuit lead-out terminal inside is connected with control relay circuit, and outside is connected with user demarcation switch and status indicator lamp respectively.Power supply terminal inside is connected with power module, and outside is connected with AC power or DC power supply, and by wire body contact ground.
Three-phase current Acquisition Circuit is sent into A/D change-over circuit after being used for that the three-phase current that Current Transmit A, CTB, CTC gather is carried out filter shape process and is carried out analog-to-digital conversion, finally sends into control module; Switch quantity acquisition circuit be used for collection site co-bit, jump position, hand closes, hand hop-information, and is transferred to control module after being converted to the signal that control module can identify; The temperature that temperature gas Acquisition Circuit gathers for the treatment of temperature sensor and gas sensor and gas density information, be transferred to control module after treated conversion.Operation push-button comprises control button 4 and direction key 3, and control button and comprise reset key, determine button and return button, direction key comprises button up and down, controls button and coordinates direction key to be used for realizing the switch motion of control user demarcation.
In the present embodiment, control module adopts IC863528B6 chip, open the light temperature information in cabinet and the gas density information of gas sensor collection and the standard information of setting for the various switching signals of the current information of each phase line of 10kV circuit according to current transformer collection, switch quantity acquisition circuit collection, temperature sensor collection compare, when wherein there being abnormal information, control module sends control information according to the mode standard of setting to control relay circuit, and control relay circuit controls user demarcation switch again and operates accordingly; Meanwhile, control relay circuit carries out state instruction according to the state state of a control indicator light of user demarcation switch.Control module is also carrying out the display of on off state and data message after judging process by LCDs.When control module detects that operation push-button has information to input, the action command of preferential executable operations button, controls user demarcation switch motion.
The utility model can realize quick-break in three-stage protection, overcurrent delay and zero-sequenceprotection, and fast tripping protection and overcurrent protection can start No. one to three reclosing functions, after closing by hand or reclosing protection start close a floodgate after accelerate function.Switch protection separating brake under line short or over current fault; if arrange reclosing; the utility model starts reclosing after interval time; if coincide with fault point; then starting switch Accelerated trip, if fault belongs to permanent fault, after overlapping; still (acceleration) protection separating brake, locking is simultaneously closed a floodgate.If belong to transient fault, switch is fixed a breakdown after protection separating brake, time-delay closing, and line powering recovers normal.

Claims (4)

1. user demarcation switch intelligent miniature protective device, it is characterized in that: comprise housing equipped mutually and front panel, be provided with the control module be independently arranged in PCB, three-phase current Acquisition Circuit, switch quantity acquisition circuit, temperature gas Acquisition Circuit, signal processing circuit, A/D change-over circuit, control relay circuit and power module in described housing, front panel be provided with LCDs, status indicator lamp and operation push-button; Described power module is connected with control module, signal processing circuit, A/D change-over circuit, control relay circuit respectively; The input of described control module is connected with switch quantity acquisition circuit, signal processing circuit, A/D change-over circuit and operation push-button respectively, the input of signal processing circuit connects temperature gas Acquisition Circuit, and the input of A/D change-over circuit connects three-phase current Acquisition Circuit; The output of control module is connected with control relay circuit and LCDs respectively, and the output of control relay circuit is connected with user demarcation switch and status indicator lamp respectively.
2. user demarcation switch intelligent miniature protective device according to claim 1, is characterized in that: the rear board of described housing is provided with magnitude of current input terminal, On-off signal terminal, the collection of temperature gas terminal, control relay circuit lead-out terminal and power supply terminal.
3. user demarcation switch intelligent miniature protective device according to claim 2, is characterized in that: described three-phase current Acquisition Circuit is connected with the current transformer output be arranged in triple line through magnitude of current input terminal; Temperature gas Acquisition Circuit gathers terminal through temperature gas and connects respectively at temperature sensor and gas sensor.
4. user demarcation switch intelligent miniature protective device according to claim 1; it is characterized in that: described operation push-button comprises control button and direction key; control button to comprise reset key, determine button and return button, direction key comprises button up and down.
CN201520009684.1U 2015-01-08 2015-01-08 User demarcation switch intelligent miniature protective device Expired - Fee Related CN204304420U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520009684.1U CN204304420U (en) 2015-01-08 2015-01-08 User demarcation switch intelligent miniature protective device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520009684.1U CN204304420U (en) 2015-01-08 2015-01-08 User demarcation switch intelligent miniature protective device

Publications (1)

Publication Number Publication Date
CN204304420U true CN204304420U (en) 2015-04-29

Family

ID=53109934

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520009684.1U Expired - Fee Related CN204304420U (en) 2015-01-08 2015-01-08 User demarcation switch intelligent miniature protective device

Country Status (1)

Country Link
CN (1) CN204304420U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170512

Address after: 071000 No. 81 Tengfei Road, Hebei, Baoding

Patentee after: Baoding City Semeureka Electric Power Technology Co., Ltd.

Address before: 071000, Baoding City, Hebei Province North Swan Road, Xiu Lan city garden 3 group 7-4-202

Patentee before: Li Zhigang

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150429

Termination date: 20180108