CN201608516U - High-reliability arc light protective device - Google Patents
High-reliability arc light protective device Download PDFInfo
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- CN201608516U CN201608516U CN2010291600182U CN201029160018U CN201608516U CN 201608516 U CN201608516 U CN 201608516U CN 2010291600182 U CN2010291600182 U CN 2010291600182U CN 201029160018 U CN201029160018 U CN 201029160018U CN 201608516 U CN201608516 U CN 201608516U
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- chip microcomputer
- protective device
- switch
- arc light
- singlechip
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Abstract
The utility model relates to a high-reliability arc light protective device, which is used for protecting a switch cabinet. The utility model has the technical scheme that the high-reliability arc light protective device consists of an arc light probe, a photoelectric converter, three current transformers, a dial switch, a singlechip and a relay, wherein a light signal acquired by the arc light probe is connected with the input end of the photoelectric converter; the output end of the photoelectric converter is connected with a P0.0 end of the singlechip; the three current transformers are respectively connected with three phase lines of the switch cabinet; the output ends of the three current transformers are respectively connected with P0.1-P0.3 ends of the singlechip; six switching signal output ends of the dial switch are respectively connected with P1.0-1.5 ends of the singlechip; the relay controls a power contactor of the switch cabinet; and a control coil of the relay is connected with a P2.0 end of the singlechip. The high-reliability arc light protective device only adopts the dial switch to set the current setting value accurately, thereby not only improving the working efficiency, but also keeping the current setting value stable and ensuring the reliability of a system.
Description
Technical field
The utility model relates to a kind of device that the arclight fault of switch cubicle is monitored and protected of being used for, and belongs to the resist technology field.
Background technology
The arclight Integrated Protection System is the device that switch cubicle inside arc fault is monitored and protected at present commonly used, and the arc fault criterion comprises two necessary conditions: arc light and current increment.At present, the current setting of arclight protection system is generally regulated by rotary switch (potentiometer), because the degree of regulation of rotary switch is low, need could realize precisely location by the current trigger device.Specific operation process is as follows: the current trigger device is adjusted to the default definite value of electric current, and the adjusting knob switch increases the system power setting value gradually, under the condition that other criterions all satisfy, when system reaches the critical condition of action, stops to regulate.The residing position of knob of this moment is exactly the default definite value of electric current.This current setting control method operation is very loaded down with trivial details, causes exfactory inspection and the preceding debugging work load of on-the-spot operation very big, and is not easy to safeguard, can not monitor when current setting changes in the protective device running.
In addition, rotary switch is installed in the surface of protective device, and in transportation, installation or the maintenance process of protective device, the knob position of rotary switch is easy to former thereby change because of friction or vibrations etc., causes system's misoperation or tripping to be done.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of current setting easy to adjust, the high reliability arclight protective device that current setting is accurate, stable.
Problem described in the utility model realizes with following technical proposals:
A kind of high reliability arclight protective device; by arc probe; optical-electrical converter; current transformer; toggle switch; single-chip microcomputer and relay are formed; described arc probe is installed on the sidewall of the protected compartment of switch cubicle; the light signal of its collection is delivered to the input of optical-electrical converter by optical fiber; the signal of telecommunication of described optical-electrical converter output is connected to the P0.0 end of single-chip microcomputer; described current transformer is provided with three; connect three phase lines of switch cubicle respectively; their signal output part meets the P0.1 of single-chip microcomputer respectively; P0.2 and P0.3 end; six switching signal outputs of described toggle switch connect the P1.0～P1.5 end of single-chip microcomputer respectively; the power contactor of described relay control switch cabinet, its control coil connect the P2.0 end of single-chip microcomputer.
Above-mentioned high reliability arclight protective device also comprises the LED alarm lamp in the formation, described LED alarm lamp connect single-chip microcomputer P1.1 end.
The utility model need not to use additional instruments (current trigger device), only adopt toggle switch can accurately set current setting, not only simplified the process that the current value setting value is set greatly, improved operating efficiency, even be subjected to violent vibration, the primary current setting value can not be changed yet, and operation and maintenance are got up very easy, has guaranteed the reliability of system.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is an electrical schematic diagram of the present utility model.
Each label is among the figure: U1, single-chip microcomputer; U2, optical-electrical converter; L, arc probe; CT1, CT2, CT3, current transformer; MK, toggle switch; J, relay; LED, alarm lamp; R1～R6, pull-up resistor.
Embodiment
Referring to Fig. 1, the utility model adopts 6 toggle switch MK to set current setting, and 6 toggle switch MK are exactly that 6 switches have integrated, and common 1 is exactly switch closure, and the 0th, switch disconnects.The common end grounding of 6 switches, the other end meet the P1.0～P1.5 of single-chip microcomputer respectively, and each switch also is provided with a pull-up resistor (i.e. R1 among the figure～R6).Arc probe L among Fig. 1 is used to gather arc optical signal, and arc optical signal sends single-chip microcomputer U1 to after being converted to the signal of telecommunication by optical-electrical converter U2.Three current transformer CT1, CT2, CT3 are used to gather current signal, and relay J is used for the power contactor of control switch cabinet, when arc fault takes place switch cubicle are protected.The LED alarm lamp can remind the staff in time to fix a breakdown.
Toggle switch MK is connected with the I/O mouth of single-chip microcomputer, controls the input signal of I/O, thereby regulate the duty ratio of single-chip microcomputer inside pwm pulse signal, modifier current setting by the folding of regulating each switch of toggle switch MK.6 toggle switch MK can be with current setting range 64 five equilibriums by combination in any, only need set according to the toggle switch MK setting value table of comparisons after current setting value is determined to get final product, and are convenient, reliable.
The current reference value is by toggle switch MK decision, and it is 0 that toggle switch pushes ON, is 1 away from ON.Current setting range is 0～5In (In is a Current Transformer Secondary side load current value), and toggle switch is with setting range 64 five equilibriums, and promptly the difference of gear is 7.9%In.Table 1 is the toggle switch setting value table of comparisons.
Table 1
| Dial-up position 1 | Dial-up |
Dial-up |
Dial-up position 4 | Dial-up position 5 | Dial-up position 6 | The |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 0 | 0 | 0 | 7.9％ |
| 0 | 1 | 0 | 0 | 0 | 0 | 15.9％ |
| 1 | 1 | 0 | 0 | 0 | 0 | 23.8％ |
| 0 | 0 | 1 | 0 | 0 | 0 | 31.7％ |
| 1 | 0 | 1 | 0 | 0 | 0 | 39.7％ |
| 0 | 1 | 1 | 0 | 0 | 0 | 47.6％ |
| 1 | 1 | 1 | 0 | 0 | 0 | 55.6％ |
| 0 | 0 | 0 | 1 | 0 | 0 | 63.5％ |
| 1 | 0 | 1 | 0 | 0 | 0 | 39.7％ |
| 1 | 0 | 0 | 1 | 0 | 0 | 71.4％ |
| 0 | 1 | 0 | 1 | 0 | 0 | 79.4％ |
| 1 | 1 | 0 | 1 | 0 | 0 | 87.3％ |
| 0 | 0 | 1 | 1 | 0 | 0 | 95.2％ |
| 1 | 0 | 1 | 1 | 0 | 0 | 103.2％ |
| 0 | 1 | 1 | 1 | 0 | 0 | 111.1％ |
| 1 | 1 | 1 | 1 | 0 | 0 | 119％ |
| 0 | 0 | 0 | 0 | 1 | 0 | 127％ |
| 1 | 0 | 0 | 0 | 1 | 0 | 134.9％ |
| 0 | 1 | 0 | 0 | 1 | 0 | 142.9％ |
| 1 | 1 | 0 | 0 | 1 | 0 | 150.8％ |
| 0 | 0 | 1 | 0 | 1 | 0 | 158.7％ |
| 1 | 0 | 1 | 0 | 1 | 0 | 166.7％ |
| 0 | 1 | 1 | 0 | 1 | 0 | 174.6％ |
| 1 | 1 | 1 | 0 | 1 | 0 | 182.5％ |
| 0 | 0 | 0 | 1 | 1 | 0 | 190.5％ |
| 1 | 0 | 0 | 1 | 1 | 0 | 198.4％ |
| 0 | 1 | 0 | 1 | 1 | 0 | 206.3％ |
| 1 | 1 | 0 | 1 | 1 | 0 | 214.2％ |
| 1 | 0 | 1 | 0 | 0 | 0 | 39.7％ |
| 0 | 0 | 1 | 1 | 1 | 0 | 222.2％ |
| 1 | 0 | 1 | 1 | 1 | 0 | 230.2％ |
| 0 | 1 | 1 | 1 | 1 | 0 | 238.1％ |
| 1 | 1 | 1 | 1 | 1 | 0 | 246％ |
| 0 | 0 | 0 | 0 | 0 | 1 | 254％ |
| 1 | 0 | 0 | 0 | 0 | 1 | 261.9％ |
| 0 | 1 | 0 | 0 | 0 | 1 | 269.8 |
| 1 | 1 | 0 | 0 | 0 | 1 | 277.8％ |
| 0 | 0 | 1 | 0 | 0 | 1 | 285.7％ |
| 1 | 0 | 1 | 0 | 0 | 1 | 293.7％ |
| 0 | 1 | 1 | 0 | 0 | 1 | 301.6％ |
| 1 | 1 | 1 | 0 | 0 | 1 | 309.5％ |
| 0 | 0 | 0 | 1 | 0 | 1 | 317.5％ |
| 1 | 0 | 0 | 1 | 0 | 1 | 325.4％ |
| 0 | 1 | 0 | 1 | 0 | 1 | 333.3％ |
| 1 | 1 | 0 | 1 | 0 | 1 | 341.3％ |
| 0 | 0 | 1 | 1 | 0 | 1 | 349.2％ |
| 1 | 0 | 1 | 1 | 0 | 1 | 357.1％ |
| 1 | 0 | 0 | 1 | 0 | 1 | 325.4％ |
| 0 | 1 | 1 | 1 | 0 | 1 | 365％ |
| 1 | 1 | 1 | 1 | 0 | 1 | 373％ |
| 0 | 0 | 0 | 0 | 1 | 1 | 381％ |
| 1 | 0 | 0 | 0 | 1 | 1 | 388.9％ |
| 0 | 1 | 0 | 0 | 1 | 1 | 396.9％ |
| 1 | 1 | 0 | 0 | 1 | 1 | 404.8％ |
| 0 | 0 | 1 | 0 | 1 | 1 | 412.7％ |
| 1 | 0 | 1 | 0 | 1 | 1 | 420.6％ |
| 0 | 1 | 1 | 0 | 1 | 1 | 428.6％ |
| 1 | 1 | 1 | 0 | 1 | 1 | 436.5％ |
| 0 | 0 | 0 | 1 | 1 | 1 | 444.4％ |
| 1 | 0 | 0 | 1 | 1 | 1 | 452.4％ |
| 0 | 1 | 0 | 1 | 1 | 1 | 460.3％ |
| 1 | 1 | 0 | 1 | 1 | 1 | 468.3％ |
| 0 | 0 | 1 | 1 | 1 | 1 | 476％ |
| 1 | 0 | 1 | 1 | 1 | 1 | 484.1％ |
| 0 | 1 | 1 | 1 | 1 | 1 | 492％ |
| 1 | 1 | 1 | 1 | 1 | 1 | 500％ |
Claims (2)
1. high reliability arclight protective device; it is characterized in that; it is by arc probe (L); optical-electrical converter (U2); current transformer; toggle switch (MK); single-chip microcomputer (U1) and relay (J) are formed; described arc probe (L) is installed on the sidewall of the protected compartment of switch cubicle; the light signal of its collection is delivered to the input of optical-electrical converter (U2) by optical fiber; the signal of telecommunication of described optical-electrical converter (U2) output is connected to the P0.0 end of single-chip microcomputer (U1); described current transformer is provided with three; connect three phase lines of switch cubicle respectively; their signal output part meets the P0.1 of single-chip microcomputer (U1) respectively; P0.2 and P0.3 end; six switching signal outputs of described toggle switch (MK) connect the P1.0～P1.5 end of single-chip microcomputer (U1) respectively; the power contactor of described relay (J) control switch cabinet, its control coil connect the P2.0 end of single-chip microcomputer (U1).
2. according to the described high reliability arclight of claim 1 protective device, it is characterized in that, also comprise the LED alarm lamp in the formation, described LED alarm lamp connects the P1.1 end of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010291600182U CN201608516U (en) | 2010-02-08 | 2010-02-08 | High-reliability arc light protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010291600182U CN201608516U (en) | 2010-02-08 | 2010-02-08 | High-reliability arc light protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608516U true CN201608516U (en) | 2010-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010291600182U Expired - Fee Related CN201608516U (en) | 2010-02-08 | 2010-02-08 | High-reliability arc light protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354248A (en) * | 2011-08-11 | 2012-02-15 | 乔双庆 | Current controller |
| CN104242383A (en) * | 2014-08-22 | 2014-12-24 | 广东易事特电源股份有限公司 | Adjustable charging circuit and charging adjusting method of low-and-medium-power UPS |
| CN104377664A (en) * | 2014-11-07 | 2015-02-25 | 成龙建设集团有限公司 | Medium-voltage and low-voltage arc light busbar protection device set |
-
2010
- 2010-02-08 CN CN2010291600182U patent/CN201608516U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354248A (en) * | 2011-08-11 | 2012-02-15 | 乔双庆 | Current controller |
| CN104242383A (en) * | 2014-08-22 | 2014-12-24 | 广东易事特电源股份有限公司 | Adjustable charging circuit and charging adjusting method of low-and-medium-power UPS |
| CN104242383B (en) * | 2014-08-22 | 2017-11-17 | 广东易事特电源股份有限公司 | The adjustable charging circuit and charging adjusting method of middle low power ups power |
| CN104377664A (en) * | 2014-11-07 | 2015-02-25 | 成龙建设集团有限公司 | Medium-voltage and low-voltage arc light busbar protection device set |
| CN104377664B (en) * | 2014-11-07 | 2017-10-20 | 成龙建设集团有限公司 | Mesolow arc light busbar protective device group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20160208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |