CN113472217A - Outdoor high-voltage safety electricity-taking device - Google Patents
Outdoor high-voltage safety electricity-taking device Download PDFInfo
- Publication number
- CN113472217A CN113472217A CN202110355771.2A CN202110355771A CN113472217A CN 113472217 A CN113472217 A CN 113472217A CN 202110355771 A CN202110355771 A CN 202110355771A CN 113472217 A CN113472217 A CN 113472217A
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- China
- Prior art keywords
- voltage
- low
- voltage power
- circuit
- capacitor
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides an outdoor high pressure safety is got electric installation, gets circuit (2) including low pressure with electronic box (1) and high pressure, high pressure is got circuit (2) and is located low pressure with electronic box (1) outer and with low pressure with electronic box (1) insulation isolation, the high pressure input end that circuit (2) were got to high pressure connects the high voltage power supply, the low pressure output that circuit (2) were got to high pressure is connected with the electrical apparatus R that is located low pressure with electronic box (1). The invention prevents the voltage at the high-voltage side from entering the low-voltage power box, thereby not only ensuring the safe operation of the low-voltage controller in the low-voltage power box, but also ensuring the life safety of operators.
Description
Technical Field
The invention relates to an outdoor high-voltage safety electricity-taking device.
Background
Outdoor high-voltage electricity taking is widely used for outdoor switch equipment, and the existing outdoor switch equipment generally adopts a voltage division mode of connecting a high-voltage capacitor and a low-voltage capacitor in series at home and abroad and then outputs required safe voltage through an isolation transformer. In order to ensure the safety of electricity utilization, in the prior art, a high-voltage capacitor is generally encapsulated in an insulating material (epoxy resin or other insulating materials) and arranged outside an electricity utilization box, the high-voltage capacitor is connected with a high-voltage power supply, and a low-voltage capacitor is introduced into a transformer in a grounding protection shell for isolation through a high-voltage (up to 1000-. The high voltage (up to 1000-.
Disclosure of Invention
The invention provides an outdoor high-voltage safety electricity-taking device, which overcomes the defects of the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides an outdoor high pressure safety is got electric installation, gets the circuit including low pressure with electronic box and high pressure, the high pressure is got the circuit and is located the low pressure with electronic box outside and with the insulating isolation of low pressure, the high pressure input end that the circuit was got to the high pressure connects the high voltage power supply, the low pressure output end that the circuit was got to the high pressure is connected with the electrical apparatus R that is located the low pressure with electronic box.
Furthermore, the high-voltage power taking circuit is integrally encapsulated by a high-voltage-resistant insulating material.
Preferably, the high-voltage resistant insulating material is epoxy resin.
Preferably, the high-voltage power-taking circuit comprises a high-voltage capacitor C1, a low-voltage capacitor C2 and an isolation transformer T, one end of the high-voltage capacitor C1 is connected with a high-voltage power supply, the other end of the high-voltage capacitor C1 is connected with one end of the low-voltage capacitor C2 through a high-voltage cable, and the other end of the low-voltage capacitor C2 is grounded; the high-voltage side input end of the isolation transformer T is connected to two ends of a low-voltage capacitor C2, and the low-voltage side output end of the isolation transformer T is arranged in the low-voltage power utilization box and connected with a power utilization device R.
According to the invention, the high-voltage power taking circuit is arranged outside the low-voltage power box and is insulated and isolated from the low-voltage power box, so that the voltage on the high-voltage side cannot enter the low-voltage power box, the safe operation of a low-voltage controller in the low-voltage power box is ensured, and the life safety of operators is also ensured.
Drawings
Figure 1 is a schematic diagram of the structure of the invention,
fig. 2 is a schematic diagram of a prior art structure.
Detailed Description
The invention is described in detail below with reference to fig. 1 and the specific embodiments.
The utility model provides an outdoor high voltage safety is got electric installation, gets circuit 2 including low pressure with electronic box 1 and high pressure, high pressure is got circuit 2 and is located low pressure with electronic box 1 outside and with low pressure with electronic box 1 insulation isolation, high pressure is got circuit 2's high voltage input termination high voltage power supply, high pressure is got circuit 2's low pressure output and is located low pressure with electronic apparatus R connection in electronic box 1.
In one embodiment, the high-voltage power circuit 2 is composed of a high-voltage capacitor C1, a low-voltage capacitor C2 and an isolation transformer T, one end of the high-voltage capacitor C1 is connected to a high-voltage power supply, the other end of the high-voltage capacitor C1 is connected to one end of a low-voltage capacitor C2 through a high-voltage cable, and the other end of the low-voltage capacitor C2 is grounded; the high-voltage side input end of the isolation transformer T is connected to two ends of a low-voltage capacitor C2, and the low-voltage side output end is arranged in the low-voltage power utilization box 1 and connected with a power utilization device R. The high-voltage power taking circuit 2 is integrally encapsulated and sealed into a whole through high-voltage-resistant insulating materials. The high-voltage resistant insulating material is preferably epoxy resin.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the scope of the invention, and therefore all equivalent variations made by the following claims should be included in the scope of the invention.
Claims (4)
1. The utility model provides an outdoor high pressure safety is got electric installation, gets electric circuit (2) including low-voltage with electronic box (1) and high pressure, characterized by: the high-voltage power supply circuit (2) is located outside the low-voltage power utilization box (1) and is insulated and isolated from the low-voltage power utilization box (1), the high-voltage input end of the high-voltage power supply circuit (2) is connected with a high-voltage power supply, and the low-voltage output end of the high-voltage power supply circuit (2) is connected with an electrical appliance R located in the low-voltage power utilization box (1).
2. The outdoor high-voltage safety electricity taking device according to claim 1, which is characterized in that: the high-voltage power taking circuit (2) is integrally encapsulated and sealed into a whole through high-voltage-resistant insulating materials.
3. The outdoor high-voltage safety electricity taking device according to claim 2, characterized in that: the high-voltage-resistant insulating material is epoxy resin.
4. The outdoor high-voltage safety electricity taking device according to claim 1, 2 or 3, characterized in that: the high-voltage power taking circuit (2) consists of a high-voltage capacitor C1, a low-voltage capacitor C2 and an isolation transformer T, one end of the high-voltage capacitor C1 is connected with a high-voltage power supply, the other end of the high-voltage capacitor C1 is connected with one end of a low-voltage capacitor C2 through a high-voltage cable, and the other end of the low-voltage capacitor C2 is grounded; the high-voltage side input end of the isolation transformer T is connected to two ends of a low-voltage capacitor C2, and the low-voltage side output end of the isolation transformer T is arranged in the low-voltage power utilization box (1) and is connected with a power utilization device R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110355771.2A CN113472217A (en) | 2021-04-01 | 2021-04-01 | Outdoor high-voltage safety electricity-taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110355771.2A CN113472217A (en) | 2021-04-01 | 2021-04-01 | Outdoor high-voltage safety electricity-taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113472217A true CN113472217A (en) | 2021-10-01 |
Family
ID=77868407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110355771.2A Pending CN113472217A (en) | 2021-04-01 | 2021-04-01 | Outdoor high-voltage safety electricity-taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113472217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945761A (en) * | 2021-11-18 | 2022-01-18 | 广东电网有限责任公司 | Insulation resistance detection device |
-
2021
- 2021-04-01 CN CN202110355771.2A patent/CN113472217A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945761A (en) * | 2021-11-18 | 2022-01-18 | 广东电网有限责任公司 | Insulation resistance detection device |
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