CN111337821A - High-voltage isolating switch monitoring device - Google Patents
High-voltage isolating switch monitoring device Download PDFInfo
- Publication number
- CN111337821A CN111337821A CN201811548848.2A CN201811548848A CN111337821A CN 111337821 A CN111337821 A CN 111337821A CN 201811548848 A CN201811548848 A CN 201811548848A CN 111337821 A CN111337821 A CN 111337821A
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- China
- Prior art keywords
- voltage isolating
- isolating switch
- switch
- proximity switch
- base
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
Abstract
The invention discloses a high-voltage isolating switch monitoring device which comprises a proximity switch, an electric operating mechanism and a rear-end server, wherein the proximity switch is arranged on a base of the high-voltage isolating switch and is connected with a transmission mechanism of the high-voltage isolating switch, the electric operating mechanism is fixed below the base and is used for controlling the high-voltage isolating switch to be switched on and off and receiving action signals of the proximity switch, and the rear-end server is arranged below the base. The invention can accurately monitor the on-off state of the high-voltage isolating switch and realize the automatic and accurate confirmation of the state of the high-voltage isolating switch. The invention is suitable for single-stage, double-stage and three-stage high-voltage isolating switches.
Description
Technical Field
The invention belongs to the technical field of electrical switches, relates to a high-voltage isolating switch, and particularly relates to a monitoring device of the high-voltage isolating switch.
Background
The high-voltage isolating switch is mainly used in the no-load link of a high-voltage line and is used for electrically isolating electric equipment such as an overhauled high-voltage bus, a breaker and the like from a live high-voltage line, and is the high-voltage switch equipment with the widest application range in a high-voltage power system. The high-voltage isolating switch is the only equipment which is completely exposed to the atmospheric environment and works, and is the most direct equipment influenced by the environmental climate condition, so that the high-voltage isolating switch is more prone to mechanical and electrical faults.
The high-voltage isolating switch comprises a base, a transmission mechanism, an insulation mechanism, a conductive mechanism and an electric operating mechanism. The transmission mechanism is controlled to act manually through the electric operating mechanism, and then the high-voltage isolating switch is controlled to be switched on or switched off. The electric operating mechanism is characterized in that an operating rod of the electric operating mechanism is provided with a proximity switch, the proximity switch transmits an opening and closing state signal of the high-voltage isolating switch to the electric operating mechanism, and the electric operating mechanism finally transmits the opening and closing state signal of the high-voltage isolating switch to a rear-end server so as to display the opening and closing state of the high-voltage isolating switch.
Because the electric mechanism has more devices and complex structure, once the auxiliary switch in the electric mechanism breaks down, the actual opening and closing state of the isolating switch cannot be reflected to the rear-end server, and at the moment, the opening and closing state signal of the high-voltage isolating switch received by the rear-end server cannot be ensured to be consistent with the actual state signal of the current high-voltage isolating switch. In this state, potential safety hazards are brought to the safe operation of the high-voltage line.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a high-voltage isolating switch monitoring device, which is used for accurately monitoring the opening and closing state of a high-voltage isolating switch and realizing the automatic and accurate confirmation of the state of the high-voltage isolating switch.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a high-voltage isolating switch monitoring device comprises a proximity switch, an electric operating mechanism and a rear-end server, wherein the proximity switch is arranged on a base of the high-voltage isolating switch and is connected with a transmission mechanism of the high-voltage isolating switch, the electric operating mechanism is fixed below the base and is used for controlling the high-voltage isolating switch to be switched on and off and receiving action signals of the proximity switch.
As a limitation to the invention, the proximity switch comprises a fixed block fixed on the base, a limit block arranged on the fixed block and driven by the transmission mechanism to move relative to the fixed block, and a signal receiving module fixed on the base; the signal receiving module is provided with an induction head; the limiting block is provided with an inductor matched with the induction head.
As a limitation to the above mode, a return spring is sleeved on the limiting block.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
the proximity switch is connected with the transmission mechanism of the high-voltage isolating switch, the opening and closing state of the proximity switch is controlled by the transmission mechanism, and the transmission mechanism also controls the opening and closing of the high-voltage isolating switch, so that the opening and closing state of the proximity switch is the same as that of the high-voltage isolating switch, the proximity switch can accurately monitor the opening and closing state of the high-voltage isolating switch, and the automatic and accurate confirmation of the state of the high-voltage isolating switch is realized.
The invention is suitable for single-stage, double-stage and three-stage high-voltage isolating switches of power lines and electrified railway contact networks.
Drawings
The invention is described in further detail below with reference to the figures and the embodiments.
Fig. 1 is a schematic structural diagram of a single-stage high-voltage isolating switch according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the transmission mechanism of the single stage high voltage isolator switch of FIG. 1;
fig. 3 is a schematic structural view of the proximity switch 1 in fig. 1;
fig. 4 is a schematic structural diagram of a vertical single-stage high-voltage isolating switch according to embodiment 2 of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a schematic structural diagram of a three-stage high-voltage isolating switch according to embodiment 3 of the present invention;
fig. 7 is a schematic structural view of the proximity switch 1 in fig. 6;
fig. 8 is a schematic diagram showing the matching relationship between the proximity switch 1 and the input shaft crank arm 11 in fig. 6;
in the figure: 1. a proximity switch; 1-1, fixing blocks; 1-2, a limiting block; 1-2-1, an inductor; 1-3, a signal receiving module; 1-3-1, an induction head; 1-4, a return spring; 2. an electric operating mechanism; 4. a first base; 5. a connecting rod; 6. a flange; 7. a second base; 8. a crank arm; 9. a third base; 10. an input shaft; 11. an input shaft crank arm.
Detailed Description
Example 1
A high-voltage isolating switch monitoring device is structurally shown in figure 1 and is applied to a single-stage high-voltage isolating switch and comprises a proximity switch 1, an electric operating mechanism 2 and a rear-end server.
The single-stage high-voltage isolating switch comprises a first base 4 and a transmission mechanism. The transmission mechanism comprises an input shaft, a rotating shaft and a connecting rod mechanism, and is shown in figure 2. The connecting rod mechanism is used for connecting the input shaft and the rotating shaft. The connecting rod mechanism comprises a connecting rod 5, and two ends of the connecting rod 5 are respectively connected with a flange 6.
The proximity switches 1 are two and are respectively fixed on the first base 4. Each proximity switch comprises a fixed block 1-1, a limiting block 1-2 and a signal receiving module 1-3, as shown in fig. 3. The fixed block 1-1 and the signal receiving module 1-3 are respectively fixed at the position, close to the flange 6, of the first base 4, the limiting block 1-2 is arranged on the fixed block 1-1, and the limiting block 1-1 is sleeved with a return spring 1-4. The signal receiving module 1-3 is provided with an induction head 1-3-1, and the signal receiving module 1-3 can output a closing signal or an opening signal. The end part of the limiting block 1-2 is provided with an inductor 1-2-1 which is used for being matched with the induction head 1-3-1.
The electric operating mechanism 2 is fixed below the first base 4, and is used for controlling the opening and closing of the high-voltage isolating switch, receiving an action signal of the proximity switch 1, and then transmitting the signal to a back-end server in a wireless or wired transmission mode.
After a high-voltage isolating switch closing key of the electric operating mechanism 2 is started manually, the electric operating mechanism 2 controls the input shaft to rotate clockwise, and the input shaft drives the connecting rod mechanism to rotate. In the rotation process of the connecting rod mechanism, the flange 6 touches the limiting block 1-2 and pushes the limiting block 1-2 to move, so that the induction body 1-2-1 approaches to the induction head 1-3-1 to close the proximity switch 1, meanwhile, a closing signal of the high-voltage isolating switch is transmitted to the electric operating mechanism 2, and then the signal is transmitted to a rear-end server in a wireless or wired transmission mode. After a high-voltage isolating switch of the electric operating mechanism 2 is manually started to break a key, the input shaft and the link mechanism rotate reversely, the flange 6 is separated from the limiting block 1-2 in the rotating process, the limiting block 1-2 rebounds to the original position under the action of the return spring 1-4, the inductor 1-2-1 is separated from the induction head 1-3-1, so that the proximity switch 1 is broken, meanwhile, a breaking signal of the high-voltage isolating switch is transmitted to the electric operating mechanism 2, and then the signal is transmitted to a rear-end server in a wireless or wired transmission mode.
The opening and closing state of the proximity switch 1 of the embodiment is controlled by the transmission mechanism, the transmission mechanism also controls the opening and closing of the high-voltage isolating switch, the opening and closing state of the proximity switch 1 is the same as the opening and closing state of the high-voltage isolating switch, the proximity switch 1 can accurately monitor the opening and closing state of the high-voltage isolating switch, and the automatic and accurate confirmation of the state of the high-voltage isolating switch is realized.
Example 2
A high-voltage isolating switch monitoring device is structurally shown in figures 4-5 and comprises a proximity switch 1, an electric operating mechanism 2 and a rear-end server.
The structure of this embodiment is the same as that of the monitoring device of the high-voltage isolating switch of embodiment 1, but the difference between this embodiment and embodiment 1 is only that the monitoring device of the high-voltage isolating switch is applied to the vertical single-stage high-voltage isolating switch.
The vertical single-stage high-voltage isolating switch comprises a second base 7 and a transmission system, wherein the transmission mechanism comprises an input shaft, a rotating shaft and a connecting rod mechanism. The connecting rod mechanism is used for connecting the input shaft and the rotating shaft. The linkage comprises a crank arm 8.
The two proximity switches 1 are respectively fixed on the parts of the second base 7, which are close to the crank arms 8.
After a high-voltage isolating switch closing key of the electric operating mechanism 2 is manually started, the electric operating mechanism 2 controls an input shaft to rotate, the input shaft drives a connecting rod mechanism to rotate, in the rotating process of the connecting rod mechanism, a crank arm 8 touches a limiting block 1-2 and pushes the limiting block 1-2 to move, an induction body 1-2-1 is made to approach an induction head 1-3-1 to close a proximity switch 1, meanwhile, a closing signal of the high-voltage isolating switch is transmitted to the electric operating mechanism 2, and then the signal is transmitted to a rear-end server in a wireless or wired transmission mode. After a high-voltage isolating switch of the electric operating mechanism 2 is manually started to break a key, the input shaft and the link mechanism rotate reversely, the crank arm 8 is separated from the limit block 1-2 in the moving process, the limit block 1-2 rebounds to the original position under the action of the return spring 1-4, the inductor 1-2-1 is separated from the inductor 1-3-1, so that the proximity switch 1 is broken, meanwhile, a breaking signal of the high-voltage isolating switch is transmitted to the electric operating mechanism 2, and then the signal is transmitted to a rear-end server in a wireless or wired transmission mode.
The opening and closing state of the proximity switch 1 of the embodiment is controlled by the transmission mechanism, the transmission mechanism also controls the opening and closing of the high-voltage isolating switch, the opening and closing state of the proximity switch 1 is the same as the opening and closing state of the high-voltage isolating switch, the proximity switch 1 can accurately monitor the opening and closing state of the high-voltage isolating switch, and the automatic and accurate confirmation of the state of the high-voltage isolating switch is realized.
Example 3
A high-voltage isolating switch monitoring device is structurally shown in figures 6-8 and comprises a proximity switch 1, an electric operating mechanism 2 and a rear-end server.
Compared with the structure of the high-voltage isolating switch monitoring device in embodiment 1, the structure of the present embodiment is different in that:
① the inductor 1-2-1 of the proximity switch 1 is arranged in the middle of the limiting block 1-2, the inductor 1-2-1 extends along the circumference of the limiting block 1-2;
② the rear end part of the induction head 1-3-1 is sleeved with a spring;
③ the monitoring device of the high-voltage isolating switch of the embodiment is applied to a three-stage high-voltage isolating switch.
The three-level high-voltage isolating switch comprises a third base 9 and a transmission system, and the transmission mechanism comprises an input shaft 10, a rotating shaft and a connecting rod mechanism. The link mechanism is used to connect the input shaft 10 and the rotating shaft. The link mechanism comprises an input shaft crank arm 11 sleeved on an input shaft 10, and the structure is shown in fig. 8.
The two proximity switches 1 are respectively fixed on the third base 9 at the position close to the crank arm 11 of the input shaft.
After a high-voltage isolating switch closing key of the electric operating mechanism 2 is manually started, the electric operating mechanism 2 controls the input shaft 10 to rotate, the input shaft 10 drives the input shaft crank arm 11 to rotate, the input shaft crank arm 11 touches the limiting block 1-2 and pushes the limiting block 1-2 to move, the induction body 1-2-1 is made to approach the induction head 1-3-1, so that the proximity switch 1 is closed, meanwhile, a closing signal of the high-voltage isolating switch is transmitted to the electric operating mechanism 2, and then the signal is transmitted to a rear-end server in a wireless or wired transmission mode. After a high-voltage isolating switch of the electric operating mechanism 2 is started manually and an open key is turned off, the input shaft 10 and the link mechanism rotate reversely, the input shaft crank arm 11 is separated from the limit block 1-2 in the moving process, the limit block 1-2 rebounds to the original position under the action of the return spring 1-4, the induction body 1-2-1 is separated from the induction head 1-3-1, so that the proximity switch 1 is disconnected, meanwhile, a disconnection signal of the high-voltage isolating switch is transmitted to the electric operating mechanism 2, and then the signal is transmitted to a rear-end server in a wireless or wired transmission mode.
The opening and closing state of the proximity switch 1 of the embodiment is controlled by the transmission mechanism, the transmission mechanism also controls the opening and closing of the high-voltage isolating switch, the opening and closing state of the proximity switch 1 is the same as the opening and closing state of the high-voltage isolating switch, the proximity switch 1 can accurately monitor the opening and closing state of the high-voltage isolating switch, and the automatic and accurate confirmation of the state of the high-voltage isolating switch is realized.
Claims (2)
1. The utility model provides a high voltage isolator monitoring devices which characterized in that: the high-voltage isolating switch comprises a proximity switch, an electric operating mechanism and a rear-end server, wherein the proximity switch is arranged on a base of the high-voltage isolating switch and connected with a transmission mechanism of the high-voltage isolating switch, the electric operating mechanism is fixed below the base and used for controlling the high-voltage isolating switch to be switched on and off and receiving an action signal of the proximity switch, and the proximity switch comprises a fixed block fixed on the base, a limiting block which is arranged on the fixed block and driven by the transmission mechanism to move relative to the fixed block, and a signal receiving module fixed on the base; the signal receiving module is provided with an induction head; the limiting block is provided with an inductor matched with the induction head.
2. The high voltage isolator monitoring device of claim 1, wherein: and a return spring is sleeved on the limiting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548848.2A CN111337821A (en) | 2018-12-18 | 2018-12-18 | High-voltage isolating switch monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548848.2A CN111337821A (en) | 2018-12-18 | 2018-12-18 | High-voltage isolating switch monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN111337821A true CN111337821A (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548848.2A Pending CN111337821A (en) | 2018-12-18 | 2018-12-18 | High-voltage isolating switch monitoring device |
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| CN (1) | CN111337821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111563335A (en) * | 2020-07-01 | 2020-08-21 | 国网江西省电力有限公司电力科学研究院 | Laser radar-based high-voltage isolating switch closing state detection method |
-
2018
- 2018-12-18 CN CN201811548848.2A patent/CN111337821A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111563335A (en) * | 2020-07-01 | 2020-08-21 | 国网江西省电力有限公司电力科学研究院 | Laser radar-based high-voltage isolating switch closing state detection method |
| CN111563335B (en) * | 2020-07-01 | 2020-12-15 | 国网江西省电力有限公司电力科学研究院 | Laser radar-based high-voltage isolating switch closing state detection method |
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Application publication date: 20200626 |