CN212137089U - High-voltage power supply device - Google Patents
High-voltage power supply device Download PDFInfo
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- CN212137089U CN212137089U CN202020835429.3U CN202020835429U CN212137089U CN 212137089 U CN212137089 U CN 212137089U CN 202020835429 U CN202020835429 U CN 202020835429U CN 212137089 U CN212137089 U CN 212137089U
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Abstract
The utility model relates to a high voltage power supply field especially relates to a high voltage power supply unit, establish cabinet, power module and electrified detection device including inlet wire cabinet, mother. When the high-voltage power supply device normally works, the electrified detection device is disconnected when detecting that the incoming line cabinet is electrified, the second locking structure is powered off to lock the incoming line maintenance cabinet door, so that maintenance personnel is prevented from performing maintenance work under the electrified state of the incoming line cabinet, the maintenance personnel pull out a circuit breaker handcart and a fuse handcart during maintenance, the grounding handcart is pushed into the second handcart chamber, the first travel switch is contacted with the first trigger structure, the normally closed contact of the first travel switch is disconnected, the first locking structure is powered off to lock the first handcart frame, the circuit breaker handcart is prevented from being pushed into the first handcart chamber by mistake, when the grounding handcart is withdrawn, the first locking structure is electrified to release locking, the circuit breaker handcart can be pushed in, and the first travel switch and the first trigger mechanism are arranged in the female equipment cabinet, the working position and the non-working position of the grounding handcart and the circuit breaker handcart can be monitored, so that the reliability of locking control is improved.
Description
Technical Field
The utility model belongs to the technical field of the high voltage power supply, especially, relate to a high voltage power supply unit.
Background
With the rapid development of social and economic construction, high-voltage equipment is required to have higher safety and better product quality, wherein for the reason of providing good guarantee for the protection of maintenance personnel and the reliable operation of equipment, when a power system or a power user has a power failure to maintain a switch cabinet, a PT (Potential transformer) handcart is pulled out from a mother equipment cabinet and then shaken into a grounding handcart to implement grounding, and the function of the grounding handcart is to eliminate residual charges, prevent sudden incoming calls and eliminate induced voltage.
However, since the grounding handcart and the PT handcart share one bus cabinet body, when the grounding handcart is completely pulled out, and an aviation plug (socket) connecting the handcart and the cabinet body is disconnected, the on-off state of the travel switch cannot be fed back, which causes signal interruption, so that the traditional method of uploading working position and non-working position signals through a position contact of a chassis of the handcart is inaccurate, and the phenomena of unreliable locking and unsafe power utilization are easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high voltage power supply unit aims at solving the problem that traditional ground connection handcart's shutting control reliability is low.
The utility model discloses a first aspect of the embodiment provides a high voltage power supply unit, and high voltage power supply unit includes:
the incoming line cabinet is provided with an incoming line overhaul cabinet door, a circuit breaker handcart and a first handcart room used for accommodating the circuit breaker handcart, the circuit breaker handcart comprises a first handcart frame and a first locking structure arranged on the first handcart frame, and the incoming line overhaul cabinet door is provided with a second locking structure;
the grounding handcart comprises a third handcart frame and a first trigger mechanism which is in contact with the first travel switch to trigger the normally closed contact of the first travel switch to be disconnected;
a power supply module;
a first power end of the live detection device, a first end of the normally closed contact of the first travel switch and a first power end of the power module are connected in common, a second power end of the live detection device is connected with a first power end of the second locking structure, a second end of the normally closed contact of the first travel switch is connected with the first power end of the first locking structure, a second power end of the second locking structure, a second power end of the first locking structure and a second power end of the power module are connected in common, and a signal end of the live detection device is connected with a wire inlet end of the wire inlet cabinet;
the first locking structure is used for locking the first trolley frame in a power-off mode when the first travel switch is in contact with the first triggering structure, and the electrified detection device is disconnected when detecting that the incoming line end of the incoming line cabinet is electrified, so that the second locking structure is used for locking the incoming line maintenance cabinet door in a power-off mode.
In one embodiment, a second travel switch is arranged in the first handcart chamber, the circuit breaker handcart further comprises a second trigger mechanism which is in contact with the second travel switch to trigger the normally closed contact of the second travel switch to be disconnected, and the grounding handcart further comprises a third locking structure arranged on the third handcart frame;
the first end of the normally closed contact of the second travel switch is connected with the first power end of the power module, the second end of the normally closed contact of the second travel switch is connected with the first power end of the third locking structure, the second power end of the third locking structure is connected with the second power end of the power module, and the third locking structure is powered off to lock the third hand truck frame when the second travel switch is in contact with the second trigger structure.
In one embodiment, the electrification detection device comprises a mutual inductance component and a switch component, wherein a signal input end of the mutual inductance component is a signal end of the electrification detection device, a signal output end of the mutual inductance component is connected with a controlled end of the switch component, a first end of the switch component is a first power supply end of the electrification detection device, and a second end of the switch component is a second power supply end of the electrification detection device;
the mutual inductance assembly is used for detecting the electrified state of the wire inlet end of the wire inlet cabinet and outputting an electrified feedback signal to the switch assembly when the wire inlet end of the wire inlet cabinet is electrified so as to disconnect the switch assembly.
In one embodiment, the mutually inductive component comprises a current transformer or a voltage transformer.
In one embodiment, the switch assembly includes a relay having a normally closed auxiliary contact having a first end and a second end, respectively, of the switch assembly.
In one embodiment, the first, second and third latching structures are electromagnetic locks.
In one embodiment, the indoor first handcart that is provided with touches the seat, the circuit breaker handcart still includes the first arm that touches that sets up on first handcart frame, the first front end that touches the arm be provided with first handcart touches the first handcart contact of seat adaptation.
In one embodiment, the indoor second handcart that is provided with of second handcart touches the seat, the fuse handcart is still including setting up the second on the second handcart frame and touching the arm, the ground connection handcart is still including setting up the third on the third handcart frame and touching the arm, the second touch the front end of arm be provided with the second handcart contact that the second handcart touched the seat adaptation, the third touch the front end of arm be provided with the third handcart contact that the second handcart touched the seat adaptation.
In one embodiment, the primary equipment cabinet further comprises a PT assembly connecting the second hand car room and a low voltage load;
and the PT component is used for converting a high-voltage power supply output by the fuse handcart into a low-voltage power supply when the fuse handcart is arranged in the second handcart chamber.
In one embodiment, the high-voltage power supply device further comprises at least one outlet cabinet, and the outlet end of the inlet cabinet, the inlet end of the bus cabinet and the inlet end of the at least one outlet cabinet are connected in common.
The utility model discloses ground handcart and fuse handcart set up the sharing second handcart room in female cabinet, when high-voltage power supply unit normally worked, electrified detection device detected incoming line cabinet and cut off when electrified, second shutting structure outage shutting inlet wire maintenance cabinet door, prevent that maintainer from carrying out maintenance work under incoming line cabinet electrified state, simultaneously, the fuse pushed into the second handcart room, when overhauing, maintainer pulled out circuit breaker handcart and fuse handcart and pushed grounding handcart into the second handcart room, incoming line maintenance cabinet door was opened, first travel switch contacted with first trigger structure simultaneously, the normally closed contact of first travel switch broke off, first shutting structure outage shutting first handcart frame, prevent that circuit breaker handcart from mistakenly pushing into first handcart room, when grounding handcart withdrawed, first shutting structure got to the electricity and removed shutting, circuit breaker handcart can be pushed in, through set up first travel switch and first trigger mechanism in female cabinet, the working position and the non-working position of the grounding handcart and the circuit breaker handcart can be monitored, so that the reliability of locking control is improved.
Drawings
Fig. 1 is a schematic structural diagram of a second handcart room provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a grounding handcart provided by the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a high voltage power supply apparatus according to an embodiment of the present invention;
fig. 4 is a schematic view of a first electrical locking of the high-voltage power supply apparatus according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a second electrical locking of the high-voltage power supply apparatus according to the embodiment of the present invention;
fig. 6 is a schematic view of a third electrical locking of the high voltage power supply apparatus according to the embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The embodiment of the utility model provides a high voltage power supply unit is provided.
As shown in fig. 3, the high voltage power supply apparatus includes:
the incoming line cabinet is provided with an incoming line overhaul cabinet door, a circuit breaker handcart 120 and a first handcart room for accommodating the circuit breaker handcart 120, the circuit breaker handcart 120 comprises a first handcart frame and a first locking structure DS1 arranged on the first handcart frame, and the incoming line overhaul cabinet door is provided with a second locking structure DS 2;
the primary equipment cabinet is provided with a fuse handcart 130, a grounding handcart 120 and a second handcart chamber 110 used for loading the fuse handcart 130 or the grounding handcart 120, a first travel switch 112 is arranged in the second handcart chamber 110, the fuse handcart 130 comprises a second handcart frame, and the grounding handcart 120 comprises a third handcart frame 124 and a first trigger mechanism 121 which is in contact with the first travel switch 112 to trigger a normally closed contact ES1 of the first travel switch 112 to be disconnected;
a power supply module;
the system comprises a charged detection device 10, a first power end of the charged detection device 10, a first end of a normally closed contact ES1 of a first travel switch 112 and a first power end FWM of a power module are connected in common, a second power end of the charged detection device 10 is connected with a first power end of a second latching structure DS2, a second end of a normally closed contact ES1 of the first travel switch 112 is connected with a first power end of the first latching structure DS1, a second power end of the second latching structure DS2, a second power end of the first latching structure DS1 and a second power end FWMn of the power module are connected in common, and a signal end of the charged detection device 10 is connected with a wire inlet end of a wire inlet cabinet;
the first locking structure DS1 is used for locking the first trolley frame in an outage way when the first travel switch 112 is in contact with the first trigger mechanism 121, and the electrification detecting device 10 is disconnected when the electrification of the incoming line end of the incoming line cabinet is detected, so that the second locking structure DS2 is used for locking the incoming line maintenance cabinet door in an outage way.
In this embodiment, as shown in fig. 3, an incoming cabinet is connected to a main cabinet through a high-voltage bus, the incoming cabinet is connected to a high-voltage power supply, the high-voltage power supply flows into the main cabinet through the incoming cabinet and the high-voltage bus, the incoming cabinet is provided with a circuit breaker handcart 120 for switching on and off the high-voltage power supply and a first handcart room for accommodating the circuit breaker handcart 120, meanwhile, the incoming cabinet includes a first cabinet door (not shown) for pulling out the circuit breaker handcart 120 and an incoming overhaul cabinet door (not shown), when in overhaul, an overhaul worker can open the first cabinet door to pull out the circuit breaker handcart 120 and open the incoming overhaul cabinet door to perform incoming cabinet overhaul work, the main cabinet is provided with a grounding handcart 120 and a fuse handcart 130, a second cabinet door and an overhaul cabinet door for pulling out the fuse handcart 130 and the grounding handcart 120 are also arranged in the main cabinet, when the fuse handcart 130 is connected, when the grounding handcart 120 is connected, the fuse handcart 130 and the grounding handcart 120 respectively work in a working state and an overhauling state, so that the fuse handcart 130 and the grounding handcart 120 share one second handcart chamber 110, the fuse handcart 130 is pushed in during normal work, the fuse handcart 130 is pushed out and the grounding handcart 120 is pushed in during overhauling, meanwhile, as shown in fig. 1, a first trigger mechanism 121 is further arranged in the mother equipment cabinet, and as shown in fig. 2, a first travel switch 112 is arranged on the grounding handcart 120.
In normal operation, the circuit breaker handcart 120 is pushed into the first handcart room, the fuse handcart 130 is pushed into the second handcart room 110, at this time, the incoming line cabinet is electrified, as shown in fig. 4, the electrified detection device 10 keeps an off state, the second locking structure DS2 arranged on the incoming line maintenance cabinet door is powered off and locked, the incoming line maintenance cabinet door can not be opened, thereby preventing the maintenance personnel from electrified maintenance of the incoming line cabinet, meanwhile, during maintenance, the maintenance personnel pulls out the circuit breaker handcart 120 through the first cabinet door and pulls out the fuse handcart 130 through the second cabinet door and pushes in the grounding handcart 120, in order to improve the safety, the front end of the incoming line cabinet is also provided with a power switch, during maintenance of the incoming line cabinet, the maintenance personnel also turns off the power switch at the front end of the incoming line cabinet, during maintenance of the mother set cabinet, the power switch can keep an on state or an off state, when the grounding handcart 120 is pushed into the working position of the second handcart room 110, the first trigger mechanism 121 is in contact with the first travel switch 112, the normally closed contact ES1 of the first travel switch 112 is opened, the normally closed contact ES1 of the first travel switch 112 and the first locking structure DS1 of the circuit breaker handcart 120 form a power circuit, when the normally closed contact ES1 of the first travel switch 112 is opened, the first locking structure DS1 is powered off and locked, and the circuit breaker handcart 120 cannot act, so that the danger of sudden power supply caused by mistaken pushing of the circuit breaker handcart 120 when the grounding handcart 120 works can be prevented, and the reliability of locking control is improved.
The power module may be a dc power module or an ac power module, and the power module is used to provide low-voltage working power to each locking structure and the first travel switch 112.
The electrified detection device 10 detects the electrified state of the incoming line end of the incoming line cabinet, and is disconnected when detecting that the incoming line end of the incoming line cabinet is electrified, and the incoming line end of the incoming line cabinet is not electrified, and then keeps conducting, and controls the second locking structure DS2 to be electrified, and the incoming line maintenance cabinet door can be opened, and the electrified detection device 10 can be a combined structure such as a relay, a switch tube and a mutual inductor, and the electrified detection device 10 is connected with the incoming line cabinet of the incoming line cabinet.
The parent equipment cabinet may be provided with a plurality of electrical devices, and in one embodiment, the parent equipment cabinet further includes a PT assembly 140 connecting the second handcart room 110 and the low-voltage load, and when the fuse handcart 130 is loaded into the second handcart room 110, the PT assembly 140 converts the high-voltage power output by the fuse handcart 130 into the low-voltage power output to the low-voltage load.
In one embodiment, the high voltage power supply device further comprises at least one outlet cabinet, each outlet cabinet is also connected with the bus cabinet and the inlet cabinet through the high voltage bus, and the outlet cabinet transmits the input high voltage power supply to the high voltage load.
In one embodiment, in order to avoid the faulty operation of the grounding handcart 120, a second travel switch (not shown) is disposed in the first handcart chamber, the circuit breaker handcart 120 further includes a second trigger mechanism (not shown) contacting with the second travel switch to trigger the normally closed contact ES1 of the second travel switch to open, in this embodiment, the second travel switch and the first travel switch 112 are identical in structure and installation manner, and the second trigger mechanism is identical in structure and installation manner with the first trigger mechanism 121, so that the installation manner and structure can refer to fig. 1 and 2, and the grounding handcart 120 further includes a third locking structure DS3 disposed on the third handcart frame 124;
as shown in fig. 5, the first end of the normally closed contact ES2 of the second travel switch is connected in common to the first power supply terminal FWM of the power module, the second end of the normally closed contact ES2 of the second travel switch is connected to the first power supply terminal FWM of the third latching structure DS3, the second power supply terminal of the third latching structure DS3 is connected in common to the second power supply terminal FWMn of the power module, and the third latching structure DS3 is de-energized to latch the third hand truck frame 124 when the second travel switch is in contact with the second trigger structure.
When the circuit breaker handcart 120 is pushed into the first handcart chamber and located at the working position, the second trigger mechanism is in contact with the second travel switch, the normally closed contact ES2 of the second travel switch is disconnected, the third locking structure DS3 installed on the third handcart frame 124 is locked, and the grounding handcart 120 cannot move, so that the damage of the high-voltage bus and the electrical equipment connected with the rear end due to the fact that the grounding handcart 120 is mistakenly operated and grounded in normal work is avoided.
The trigger mechanism comprises a first trigger mechanism 121 and a second trigger mechanism, the mounting positions of the first trigger mechanism and the second trigger mechanism can be correspondingly arranged according to the mounting positions of the travel switches and the structures of the cabinets, the specific mounting mode is not limited, the trigger mechanism can be made of conductive materials, such as metal sheets and metal balls, and the normally closed contact of the travel switches is triggered to be disconnected when the handcart is connected to the working position of the handcart room and the travel switches are in contact.
The first DS1, second DS2, and third DS3 latching structures may be electrical latching structures, and in one embodiment, the first DS1, second DS2, and third DS3 latching structures are electromagnetic locks that are unlocked when energized and latched when de-energized.
As shown in fig. 6, in one embodiment, the electrification detecting device 10 comprises a mutual inductance component 11 and a switch component 12, wherein a signal input end of the mutual inductance component 11 is a signal end of the electrification detecting device 10, a signal output end of the mutual inductance component 11 is connected with a controlled end of the switch component 12, a first end of the switch component 12 is a first power supply end of the electrification detecting device 10, and a second end of the switch component 12 is a second power supply end of the electrification detecting device 10;
and the mutual inductance assembly 11 is used for detecting the electrified state of the incoming line end of the incoming line cabinet, and outputting an electrified feedback signal to the switch assembly 12 when the incoming line end of the incoming line cabinet is electrified so as to disconnect the switch assembly 12.
In this embodiment, the mutual inductance component 11 is used for detecting an electrified state of the incoming line cabinet, when an incoming line end of the incoming line cabinet is electrified, the incoming line end of the incoming line cabinet outputs an electrified feedback signal to the switch component 12 after performing power conversion on voltage or current of the incoming line cabinet, the switch component 12 is disconnected when receiving the electrified feedback signal, the second locking structure DS2 locks the incoming line maintenance cabinet door, wherein the mutual inductance component 11 may be a current transformer or a voltage transformer, the switch component 12 may be a controlled switch, for example, a relay, a circuit breaker, and the like, in one embodiment, the switch component 12 includes a relay, and two ends of a normally closed auxiliary contact of the relay are a first end and a second end of the switch component 12 respectively.
In one embodiment, a first handcart contact seat is arranged in the first handcart chamber, the circuit breaker handcart 120 further comprises a first contact arm arranged on the first handcart frame, a first handcart contact matched with the first handcart contact seat is arranged at the front end of the first contact arm, a second handcart contact seat is arranged in the second handcart chamber 110, the fuse handcart 130 further comprises a second contact arm arranged on the second handcart frame, the grounding handcart 120 further comprises a third contact arm 122 arranged on the third handcart frame 124, a second handcart contact matched with the second handcart contact seat is arranged at the front end of the second contact arm, and a third handcart contact 123 matched with the second handcart contact seat is arranged at the front end of the third contact arm 122.
In this embodiment, taking the structures of the second handcart room 110 and the grounded handcart 120 as an example, as shown in fig. 1 and fig. 2, a second handcart contact seat is disposed in each of the second handcart room 110, a third contact arm 122 fixedly connected to a third handcart contact 123 is further disposed on the grounded handcart 120, and the third contact is adaptively connected to the second handcart contact seat when the grounded handcart 120 is pushed in, because the second handcart contact seat is similar to the first handcart contact seat in structure, the first handcart contact seat structure can be understood with reference to fig. 1, and the first contact arm and the second contact arm are similar to the third contact arm 122 in structure and each handcart contact structure, and can be understood with reference to fig. 2, and detailed description is omitted here.
The number of the contact arms and the number of the handcart contacts are correspondingly set according to the type and the number of the power supply loops of the high-voltage power supply device, and no specific limitation is made here.
The utility model discloses ground connection handcart 120 and fuse handcart 130 set up second handcart room 110 in female equipment cabinet sharing, when high-voltage power supply unit normally worked, electrified detection device 10 detected incoming line cabinet disconnection when electrified, second blocking structure DS2 outage blocking incoming line service cabinet door, prevent that the maintainer from carrying out maintenance work under incoming line cabinet electrified state, simultaneously, the fuse pushed second handcart room 110, during maintenance, the maintainer pulled out circuit breaker handcart 120 and fuse handcart 130 and pushed grounding handcart 120 into second handcart room 110, the incoming line service cabinet door was opened, first stroke switch 112 contacted with first trigger mechanism 121 simultaneously, normally closed contact ES1 of first stroke switch 112 broke off, first blocking structure DS1 outage blocking first handcart frame, prevent circuit breaker handcart 120 mistake from pushing first handcart room, when grounding handcart 120 withdrawed, first blocking structure DS1 got the electricity and removed the blocking, the circuit breaker handcart 120 can be pushed in, and the working positions and the non-working positions of the grounding handcart 120 and the circuit breaker handcart 120 can be monitored by arranging the first travel switch 112 and the first trigger mechanism 121 in the female equipment cabinet, so that the reliability of locking control is improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A high voltage power supply apparatus, comprising:
the incoming line cabinet is provided with an incoming line overhaul cabinet door, a circuit breaker handcart and a first handcart room used for accommodating the circuit breaker handcart, the circuit breaker handcart comprises a first handcart frame and a first locking structure arranged on the first handcart frame, and the incoming line overhaul cabinet door is provided with a second locking structure;
the grounding handcart comprises a third handcart frame and a first trigger mechanism which is in contact with the first travel switch to trigger the normally closed contact of the first travel switch to be disconnected;
a power supply module;
a first power end of the live detection device, a first end of the normally closed contact of the first travel switch and a first power end of the power module are connected in common, a second power end of the live detection device is connected with a first power end of the second locking structure, a second end of the normally closed contact of the first travel switch is connected with the first power end of the first locking structure, a second power end of the second locking structure, a second power end of the first locking structure and a second power end of the power module are connected in common, and a signal end of the live detection device is connected with a wire inlet end of the wire inlet cabinet;
the first locking structure is used for locking the first trolley frame in a power-off mode when the first travel switch is in contact with the first triggering structure, and the electrified detection device is disconnected when detecting that the incoming line end of the incoming line cabinet is electrified, so that the second locking structure is used for locking the incoming line maintenance cabinet door in a power-off mode.
2. The high voltage power supply device according to claim 1, wherein a second travel switch is disposed in the first handcart chamber, the circuit breaker handcart further comprises a second trigger mechanism which contacts with the second travel switch to trigger the normally closed contact of the second travel switch to be opened, and the grounding handcart further comprises a third locking structure disposed on the third handcart frame;
the first end of the normally closed contact of the second travel switch is connected with the first power end of the power module, the second end of the normally closed contact of the second travel switch is connected with the first power end of the third locking structure, the second power end of the third locking structure is connected with the second power end of the power module, and the third locking structure is powered off to lock the third hand truck frame when the second travel switch is in contact with the second trigger structure.
3. The high voltage power supply apparatus according to claim 1, wherein the charging detection apparatus comprises a mutual inductance component and a switch component, a signal input terminal of the mutual inductance component is a signal terminal of the charging detection apparatus, a signal output terminal of the mutual inductance component is connected to a controlled terminal of the switch component, a first terminal of the switch component is a first power terminal of the charging detection apparatus, and a second terminal of the switch component is a second power terminal of the charging detection apparatus;
the mutual inductance assembly is used for detecting the electrified state of the wire inlet end of the wire inlet cabinet and outputting an electrified feedback signal to the switch assembly when the wire inlet end of the wire inlet cabinet is electrified so as to disconnect the switch assembly.
4. The high voltage power supply of claim 3 wherein said mutual inductance assembly comprises a current transformer or a voltage transformer.
5. The high voltage power supply of claim 3 wherein said switch assembly includes a relay having normally closed auxiliary contacts at respective first and second ends of said switch assembly.
6. The high voltage power supply of claim 2 wherein said first latching structure, said second latching structure and said third latching structure are electromagnetic locks.
7. The high-voltage power supply device according to claim 1, wherein a first handcart contact seat is arranged in the first handcart chamber, the circuit breaker handcart further comprises a first contact arm arranged on the first handcart frame, and a first handcart contact matched with the first handcart contact seat is arranged at the front end of the first contact arm.
8. The high-voltage power supply device according to claim 1, wherein a second handcart contact seat is arranged in the second handcart room, the fuse handcart further comprises a second contact arm arranged on the second handcart frame, the grounding handcart further comprises a third contact arm arranged on a third handcart frame, a second handcart contact matched with the second handcart contact seat is arranged at the front end of the second contact arm, and a third handcart contact matched with the second handcart contact seat is arranged at the front end of the third contact arm.
9. The high voltage power supply apparatus according to claim 8, wherein said parent cabinet further comprises a PT assembly connecting said second hand car compartment and a low voltage load;
and the PT component is used for converting a high-voltage power supply output by the fuse handcart into a low-voltage power supply when the fuse handcart is arranged in the second handcart chamber.
10. The high voltage power supply apparatus according to claim 1, further comprising at least one outlet cabinet, wherein an outlet terminal of the inlet cabinet, an inlet terminal of the main cabinet and an inlet terminal of the at least one outlet cabinet are connected in common.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835429.3U CN212137089U (en) | 2020-05-18 | 2020-05-18 | High-voltage power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835429.3U CN212137089U (en) | 2020-05-18 | 2020-05-18 | High-voltage power supply device |
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| CN212137089U true CN212137089U (en) | 2020-12-11 |
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| CN202020835429.3U Active CN212137089U (en) | 2020-05-18 | 2020-05-18 | High-voltage power supply device |
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| CN (1) | CN212137089U (en) |
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