CN103578834A - Outdoor low-voltage protection isolation switch - Google Patents

Outdoor low-voltage protection isolation switch Download PDF

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Publication number
CN103578834A
CN103578834A CN201210259121.9A CN201210259121A CN103578834A CN 103578834 A CN103578834 A CN 103578834A CN 201210259121 A CN201210259121 A CN 201210259121A CN 103578834 A CN103578834 A CN 103578834A
Authority
CN
China
Prior art keywords
folding
terminal
arc
insulator
extinguishing
Prior art date
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.)
Pending
Application number
CN201210259121.9A
Other languages
Chinese (zh)
Inventor
贺晓红
方志宏
高剑
谢冰冰
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.)
HUBEI WANGAN TECHNOLOGY Co Ltd
Original Assignee
HUBEI WANGAN TECHNOLOGY Co Ltd
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.)
Filing date
Publication date
Application filed by HUBEI WANGAN TECHNOLOGY Co Ltd filed Critical HUBEI WANGAN TECHNOLOGY Co Ltd
Priority to CN201210259121.9A priority Critical patent/CN103578834A/en
Publication of CN103578834A publication Critical patent/CN103578834A/en
Pending legal-status Critical Current

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Abstract

The invention relates to the improvement of power grid power distribution equipment, in particular to an outdoor low-voltage protection isolation switch. The outdoor low-voltage protection isolation switch is provided with a support, insulators, input terminals and output terminals, and is characterized in that the insulators located in the middle are respectively provided with an arc extinction mechanism, each arc extinction mechanism is provided with an opening-and-closing terminal and a rotary shaft, each opening-and-closing terminal is provided with a connecting plate, the connecting plates are connected with the corresponding input terminals respectively through fuses, an opening-and-closing switch blade is installed at the position of the rotary shaft of each arc extinction mechanism, and an operating mechanism is installed on the same side of the three opening-and-closing switch blades. The operating mechanism is characterized in that a hinge pin and an auxiliary spring are installed on the support, and three insulation pull rods are hinged to the three opening-and-closing switch blades. The outdoor low-voltage protection isolation switch solves the problem that in an existing low-voltage isolation switch, a load current can not be connected or disconnected, or a transformer can not be protected during overloads or a short circuit, and is mainly used for the improvement of the existing low-voltage isolation switch.

Description

Outdoor low voltage protection cuts off switch
(i) technical field: the present invention relates to the improvement of electrical network controller switching equipment, is that a kind of outdoor low voltage protection cuts off switch.
(ii) background technology: at present; China's electrical network outdoor transformer low-pressure side is mainly to adopt low voltage isolation switch to be connected with line load; the problem that prior art low voltage isolation switch exists is: low voltage isolation switch or can not opening and closing load current, or can not transship, short-circuit protection transformer.
(iii) summary of the invention: it is existing or can not opening and closing load current that object of the present invention will solve existing low voltage isolation switch exactly, or can not transship, the problem of short-circuit protection transformer, provide a kind of outdoor low voltage protection to cut off switch.
Concrete scheme of the present invention is: a kind of outdoor low voltage protection cuts off switch, and it is provided with support, and on support, front and back are furnished with three groups of insulators, and every group of insulator is by three insulators, to be left and right distribution to form; On the insulator in every group of insulator left side, input terminal is all installed, lead-out terminal is all installed on the insulator on every group of insulator right side; It is characterized in that: on the insulator in the middle of every group of insulator, arc-extinguishing mechanism is all installed, on each arc-extinguishing mechanism, be equipped with folding terminal and rotating shaft, on each folding terminal, be equipped with connecting plate, connecting plate on each folding terminal is all to adopt fuse to connect with corresponding input terminal, and rotating shaft place of each arc-extinguishing mechanism is all provided with folding plug-in strip; The same side of three secondary folding plug-in strips is provided with operating mechanism, operating mechanism is provided with insulated tension pole, bearing pin and power assistant spring, operating mechanism is with bearing pin and power assistant spring and is configured to installation, and operating mechanism is to form hinged installation with three insulated tension poles and three secondary folding plug-in strips; When three described secondary folding plug-in strips are in combined floodgate installation site, the two ends of every secondary folding plug-in strip are to be respectively clamped and connected with corresponding folding terminal and corresponding lead-out terminal, each lead-out terminal stretch out folding plug-in strip stretch out that value H stretches out folding plug-in strip than each folding terminal stretch out large 25 millimeters-30 millimeters of value h.
Arc-extinguishing mechanism of the present invention is comprised of arc extinguishing assembly, folding terminal, rotating shaft and arc extinguishing seat, connecting plate is provided in a side of the top of folding terminal, rotating shaft is to cast on arc extinguishing seat, the top of arc extinguishing seat is provided with arc control device, arc extinguishing assembly is mounted in the arc control device of arc extinguishing seat, and arc extinguishing assembly is to be connected with folding terminal and rotating shaft respectively.
The present invention compares with existing low voltage isolation switch, input terminal of the present invention and lead-out terminal are the both sides that are arranged in arc-extinguishing mechanism and folding plug-in strip, connecting plate on arc-extinguishing mechanism folding terminal of the present invention is to adopt fuse to be connected with input terminal, input terminal, folding plug-in strip and lead-out terminal form major loop, and the folding terminal in arc-extinguishing mechanism, arc extinguishing assembly, folding plug-in strip and lead-out terminal form subsidiary loop; Its disconnection process is: folding plug-in strip is first separated with folding terminal under the effect of operating mechanism, electric current is transferred to subsidiary loop arc extinguishing by major loop, folding plug-in strip now and lead-out terminal are also in connected state, after the subsidiary loop arc extinguishing process of a few tens of milliseconds, folding plug-in strip and lead-out terminal complete unloaded disconnection; Making process is: because lead-out terminal exceeds 30 millimeters than folding terminal, first folding plug-in strip is clamped and connected with lead-out terminal under the effect of operating mechanism, electric current is communicated with subsidiary loop and arc extinguishing through folding plug-in strip, now folding plug-in strip and folding terminal also do not close a floodgate, after the subsidiary loop arc extinguishing of a few tens of milliseconds, folding plug-in strip and folding terminal close a floodgate, and electric current is transferred to major loop by subsidiary loop; The present invention is simple in structure, effect is remarkable, security performance is high; It is existing or can not opening and closing load current that the present invention preferably resolves existing low voltage isolation switch, or can not transship, the problem of short-circuit protection transformer.
(iv) accompanying drawing explanation:
Fig. 1: structural front view of the present invention;
Fig. 2: structure vertical view of the present invention;
Fig. 3: arc-extinguishing mechanism structural front view;
Fig. 4: arc-extinguishing mechanism structure vertical view;
Fig. 5: operating mechanism structural front view;
In figure: 1-support, 2-insulator, 3-input terminal, 4-fuse, 5-arc-extinguishing mechanism, 6-folding plug-in strip, 7-lead-out terminal, 8-operating mechanism, 9--arc extinguishing assembly, 10--arc control device, 11-connecting plate, 12-folding terminal, 13-rotating shaft, 14--arc extinguishing seat, 15-insulated tension pole, 16-bearing pin, 17-power assistant spring.
(v) embodiment:
Embodiment: (referring to Fig. 1, Fig. 2) a kind of outdoor low voltage protection cuts off switch, and it is provided with support 1, and on support 1, front and back are furnished with three groups of insulators 2, every group of insulator 2 is by three insulators 2, to be left and right distribution to form; On the insulator 2 in every group of insulator 2 left sides, input terminal 3 is all installed, on the insulator 2 on every group of insulator 2 right sides, lead-out terminal 7 is all installed; Particularly: on the insulator 2 in the middle of every group of insulator 2, arc-extinguishing mechanism 5 is all installed, on each arc-extinguishing mechanism 5, be equipped with folding terminal 12 and rotating shaft 13(refers to Fig. 3, Fig. 4), on each folding terminal 12, be equipped with connecting plate 11, connecting plate 11 on each folding terminal 12 is all to adopt fuse 4 to connect with corresponding input terminal 3, and rotating shaft 13 places of each arc-extinguishing mechanism 5 are all provided with folding plug-in strip 6; The same side of three secondary folding plug-in strips 6 is provided with operating mechanism 8, operating mechanism 8 is provided with insulated tension pole 15, bearing pin 16 and power assistant spring 17(and refers to Fig. 5), operating mechanism 8 is to form and install with support 1 with bearing pin 16 and power assistant spring 17, and operating mechanism 8 is to form hinged installation with three insulated tension poles 15 and three secondary folding plug-in strips 6; When three described secondary folding plug-in strips 6 are in combined floodgate installation site, the two ends of every secondary folding plug-in strip 6 are to be respectively clamped and connected with corresponding folding terminal 12 and corresponding lead-out terminal 7, each lead-out terminal 7 stretch out folding plug-in strip 6 stretch out that value H stretches out folding plug-in strip 6 than each folding terminal 12 stretch out large 25 millimeters-30 millimeters of value h.
Arc-extinguishing mechanism 5 described in the present embodiment forms (referring to Fig. 3, Fig. 4) by arc extinguishing assembly 9, folding terminal 12, rotating shaft 13 and arc extinguishing seat 14, connecting plate 11 is provided in a side of the top of folding terminal 12, rotating shaft 13 is to cast on arc extinguishing seat 14, the top of arc extinguishing seat 14 is provided with arc control device 10, arc extinguishing assembly 9 is mounted in the arc control device 10 of arc extinguishing seat 14, and arc extinguishing assembly 9 is to be connected with folding terminal 12 and rotating shaft 13 respectively.

Claims (2)

1. outdoor low voltage protection cuts off a switch, and it is provided with support, and on support, front and back are furnished with three groups of insulators, and every group of insulator is by three insulators, to be left and right distribution to form; On the insulator in every group of insulator left side, input terminal is all installed, lead-out terminal is all installed on the insulator on every group of insulator right side; It is characterized in that: on the insulator in the middle of every group of insulator, arc-extinguishing mechanism is all installed, on each arc-extinguishing mechanism, be equipped with folding terminal and rotating shaft, on each folding terminal, be equipped with connecting plate, connecting plate on each folding terminal is all to adopt fuse to connect with corresponding input terminal, and rotating shaft place of each arc-extinguishing mechanism is all provided with folding plug-in strip; The same side of three secondary folding plug-in strips is provided with operating mechanism, operating mechanism is provided with insulated tension pole, bearing pin and power assistant spring, operating mechanism is with bearing pin and power assistant spring and is configured to installation, and operating mechanism is to form hinged installation with three insulated tension poles and three secondary folding plug-in strips; When three described secondary folding plug-in strips are in combined floodgate installation site, the two ends of every secondary folding plug-in strip are to be respectively clamped and connected with corresponding folding terminal and corresponding lead-out terminal, each lead-out terminal stretch out folding plug-in strip stretch out that value H stretches out folding plug-in strip than each folding terminal stretch out large 25 millimeters-30 millimeters of value h.
2. a kind of outdoor low voltage protection according to claim 1 cuts off switch; it is characterized in that: described arc-extinguishing mechanism is comprised of arc extinguishing assembly, folding terminal, rotating shaft and arc extinguishing seat; connecting plate is provided in a side of the top of folding terminal; rotating shaft is to cast on arc extinguishing seat; the top of arc extinguishing seat is provided with arc control device; arc extinguishing assembly is mounted in the arc control device of arc extinguishing seat, and arc extinguishing assembly is to be connected with folding terminal and rotating shaft respectively.
CN201210259121.9A 2012-07-25 2012-07-25 Outdoor low-voltage protection isolation switch Pending CN103578834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210259121.9A CN103578834A (en) 2012-07-25 2012-07-25 Outdoor low-voltage protection isolation switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210259121.9A CN103578834A (en) 2012-07-25 2012-07-25 Outdoor low-voltage protection isolation switch

Publications (1)

Publication Number Publication Date
CN103578834A true CN103578834A (en) 2014-02-12

Family

ID=50050384

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210259121.9A Pending CN103578834A (en) 2012-07-25 2012-07-25 Outdoor low-voltage protection isolation switch

Country Status (1)

Country Link
CN (1) CN103578834A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106683923A (en) * 2016-12-28 2017-05-17 贺州思通信息技术有限公司 Safety arc-extinguishing knife switch
CN106783339A (en) * 2016-12-28 2017-05-31 贺州思通信息技术有限公司 The plug-in strip of anti-contact sparking
CN108010785A (en) * 2017-11-01 2018-05-08 王亚苹 A kind of switchable electric wire connecting junction of power grid list rocking arm

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106683923A (en) * 2016-12-28 2017-05-17 贺州思通信息技术有限公司 Safety arc-extinguishing knife switch
CN106783339A (en) * 2016-12-28 2017-05-31 贺州思通信息技术有限公司 The plug-in strip of anti-contact sparking
CN106783339B (en) * 2016-12-28 2018-08-17 李钢放 The plug-in strip of anti-contact sparking
CN106683923B (en) * 2016-12-28 2018-08-21 李钢放 The plug-in strip of safe arc extinguishing
CN108010785A (en) * 2017-11-01 2018-05-08 王亚苹 A kind of switchable electric wire connecting junction of power grid list rocking arm

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PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140212