CN203895949U - Power supply protection device for electric equipment - Google Patents
Power supply protection device for electric equipment Download PDFInfo
- Publication number
- CN203895949U CN203895949U CN201420334318.9U CN201420334318U CN203895949U CN 203895949 U CN203895949 U CN 203895949U CN 201420334318 U CN201420334318 U CN 201420334318U CN 203895949 U CN203895949 U CN 203895949U
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- China
- Prior art keywords
- power supply
- power
- protector
- contactor
- consumption equipment
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- 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.)
- Expired - Lifetime
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- 230000001012 protector Effects 0.000 claims abstract description 30
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000819 phase cycle Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a power supply protection device for electric equipment, which comprises an incoming line reactor (1), a power supply protector (2), an AC contactor (3), status indicating lamps and the like, wherein the status indicating lamps comprise an input indicating lamp (6), an output indicating lamp (7) and the like. The power supply protection device solves a problem that the electric equipment break down or are damaged because a power supply generated by a generator is unstable, and solves a problem that the electric equipment break down or are damaged because of false operations, that is, false wiring of operators. The power supply protection device provided by the utility model can filter a power supply peak value, enable the waveform of the power supply to be smooth and steady, and carry out overvoltage/undervoltage protection, open-phase protection and fault phase protection; the current voltage value and faults of the power supply can be read; and power utilization conditions of the equipment can be observed clearly through the indicating lamps.
Description
Technical field
The utility model relates to a kind of apparatus for protecting power supply of power consumption equipment.
Background technology
At present, conventionally there is following shortcoming in apparatus for protecting power supply: the scope that can not change overvoltage/undervoltage protection; Can accurately not demonstrate the false alarm that power supply occurs; When power failure, can cut off power supply circuits, but the power supply circuits that can not certainly be dynamically connected in the time of power up.
Summary of the invention
The purpose of this utility model is that the power supply sending for generator is unstable, and a kind of apparatus for protecting power supply of electrical appliance is provided, and avoids the components and parts of electrical appliance to burn.
For achieving the above object, the utility model provides a kind of apparatus for protecting power supply of electrical appliance.This apparatus for protecting power supply comprises: reactor (1), power supply protector (2), A.C. contactor (3), status indicator lamp (input indicator (6); Output indicator (7)).
Described reactor (1) is connected to electric power main circuit (8) the front end in power supply protector (2), filters out the peak value of power supply that generator sends, and makes power supply wave shape steady, prevents power supply protector (2) frequent movement.
Described power supply protector (2) is got upper three power lines of electric power main circuit (8) and is parallel between reactor (1) and A.C. contactor (3).Detect electric power main circuit (8) power source and whether occur overvoltage/undervoltage, phase shortage, phase sequence mistake.As relay output point disconnection of above-mentioned condition detected, without relay output point connection of above-mentioned condition.
The main contacts of described A.C. contactor (3) is connected to electric power main circuit (8), and coil is connected on the relay output point of power supply protector (2).The main circuit (8) that is used for cutting off the electricity supply, ensures that power consumption equipment power supply is normal.
Described status indicator lamp has two, and one is connected to apparatus for protecting power supply end of incoming cables, and one is connected to apparatus for protecting power supply leading-out terminal, can accurately reflect clearly the operating state of apparatus for protecting power supply.
The utility model provides a kind of apparatus for protecting power supply of power consumption equipment, its beneficial effect: power supply protector (2) detects the voltage in power supply circuits, detection range can arrange, in the time that overvoltage/undervoltage, phase shortage, phase sequence mistake appear in power supply circuits, the relay output end of power supply protector (2) disconnects, and makes contactor coil (4) dead electricity, A.C. contactor (3) main contacts disconnects, power supply circuits disconnect, and leading-out terminal indicator light goes out, power consumption equipment dead electricity; In the time that power supply protector (2) detects that power supply circuits are normal, wait for several seconds (can setting-up time), power supply protector relay output end is connected, contactor coil (4) is obtained electric, A.C. contactor (3) main contacts is connected, power supply circuits are connected, and leading-out terminal indicator light is bright, and power consumption equipment obtains electric; Power supply protector (2) can show the false alarm that power supply circuits occur; Power supply protector (2) can be set scope, overvoltage/undervoltage operate time, the phase shortage operate time of overvoltage/undervoltage value, a wrong operate time.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the present utility model.
Figure elements and symbol description:
Fig. 1: 1-reactor; 2-power supply protector; 3-A.C. contactor; 4-contactor coil; The output of 5-power supply protector relay; 6-input indicator; 7-output indicator; 8-electric power main circuit.
Embodiment
As shown in Figure 1; the utility model comprises reactor (1), power supply protector (2), contactor (3), input indicator (6), output indicator (7); wherein power supply protector relay output (5) is a part for power supply protector (2), and contactor coil (4) is a part for A.C. contactor (3).
As shown in Figure 1, reactor (1) is electrically connected on three live wires of electric power main circuit (8); Input indicator (6) is 220V power supply, and one end is electrically connected to a live wire of electric power main circuit (8), and the other end is electrically connected on the zero line N of (8); Power supply protector (2) is electrically connected to three live wires of electric power main circuit (8); Power supply protector relay output (5) one end is electrically connected to the zero line N of electric power main circuit (8), and the other end is connected to contactor coil (4), and the other end of contactor coil (4) is electrically connected to a live wire of electric power main circuit (8); Three live wires of A.C. contactor (3) main contacts electric connection of power supply main circuit (8); Output indicator (7) is electrically connected to a live wire of the electric power main circuit (8) after A.C. contactor (3) main contacts, the zero line N of other end electric connection of power supply main circuit (8) for 220V power supply one end.
Below in conjunction with Fig. 1, control principle of the present utility model is illustrated.
1, after switching on power, input indicator (6) is bright, and power supply protector (2) powers on but not adhesive of A.C. contactor (3), and output indicator (7) goes out, and existing problems in electric power main circuit (8) are described; As bright in input indicator (6), power supply protector powers on, and output indicator (7) is bright, illustrates that the positive common electric of electric power main circuit (8) can relieved use power supply;
2, scope, overvoltage/undervoltage operate time, the phase shortage operate time of overvoltage/undervoltage value, a wrong operate time are set on power supply protector (2).
3, observe the displaying contents on power supply protector (2), as occur overvoltage, under-voltage, phase shortage, wherein arbitrary phase time of misphase, power supply protector relay output (5) disconnects, not adhesive of A.C. contactor (3).There is overvoltage and when under-voltage, should check that whether power supply is normal; While there is phase shortage, should check that whether circuit wiring is firm, whether power supply is normal; While there is misphase, should check that whether wiring is correct, exchange the order of connection of (8) three live wires of electric power main circuit, until alarm release.
4,, after alarm release, power supply protector relay output (5) is connected, contactor coil (4) adhesive, and output indicator (7) is bright, and power supply is normal.
Above-mentioned example is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification made under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (4)
1. an apparatus for protecting power supply for power consumption equipment, is characterized in that: it is made up of reactor (1), power supply protector (2), A.C. contactor (3), status indicator lamp; Power supply protector (2), as the core cell of this device, should have voltage demonstration, overvoltage/undervoltage protection (protection range is to set arbitrarily between three-phase 170V-450V AC), open-phase protection, phase sequence, fault logging function; Power supply protector (2) should be with at least one relay output point; When power supply breaks down, cut off power supply circuits, power supply circuits are certainly dynamically connected when power up is normal.
2. the apparatus for protecting power supply of a kind of power consumption equipment as claimed in claim 1; it is characterized in that: described reactor (1) is the peak value generating electricity for filtering generator; waveform is acted on stably, to avoid power supply protector (2) to occur guard mode frequently.
3. the apparatus for protecting power supply of a kind of power consumption equipment as claimed in claim 1, is characterized in that: A.C. contactor (3) main contacts connects power supply power line; Relay output point control contactor coil (4) on power supply protector (2).
4. the apparatus for protecting power supply of a kind of power consumption equipment as claimed in claim 1, is characterized in that: status indicator lamp can indicate whether generator sends electricity and whether power consumption equipment obtains electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334318.9U CN203895949U (en) | 2014-06-23 | 2014-06-23 | Power supply protection device for electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334318.9U CN203895949U (en) | 2014-06-23 | 2014-06-23 | Power supply protection device for electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895949U true CN203895949U (en) | 2014-10-22 |
Family
ID=51722305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420334318.9U Expired - Lifetime CN203895949U (en) | 2014-06-23 | 2014-06-23 | Power supply protection device for electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132448A (en) * | 2017-03-16 | 2017-09-05 | 珠海格力电器股份有限公司 | Recognition methods, device and system and the storage medium and processor of power supply wiring |
-
2014
- 2014-06-23 CN CN201420334318.9U patent/CN203895949U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132448A (en) * | 2017-03-16 | 2017-09-05 | 珠海格力电器股份有限公司 | Recognition methods, device and system and the storage medium and processor of power supply wiring |
| CN107132448B (en) * | 2017-03-16 | 2019-09-20 | 珠海格力电器股份有限公司 | Recognition methods, device and system and the storage medium and processor of power supply wiring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: 3S LIFT-FICONT INDUSTRY (BEIJING) INC. Free format text: FORMER NAME: ZHONGJI LIANHE INDUSTRY TECHNOLOGY (BEIJING)CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 101106, Beijing, Tongzhou District West set economic development zone, east side, No. 1, building 15, two East Road Patentee after: The occasion of the joint Polytron Technologies Inc (Beijing) Address before: 101106, Beijing, Tongzhou District West set economic development zone, east side, No. 1, building 15, two East Road Patentee before: Zhongji Lianhe Industry Technology (Beijing)Co., Ltd. |