CN2140579Y - High voltage power factor compensating unit - Google Patents
High voltage power factor compensating unit Download PDFInfo
- Publication number
- CN2140579Y CN2140579Y CN 92227904 CN92227904U CN2140579Y CN 2140579 Y CN2140579 Y CN 2140579Y CN 92227904 CN92227904 CN 92227904 CN 92227904 U CN92227904 U CN 92227904U CN 2140579 Y CN2140579 Y CN 2140579Y
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- CN
- China
- Prior art keywords
- power factor
- high voltage
- ammeter
- capacitor
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a high voltage power factor compensating unit, belonging to the technical field of power factor compensation. The principle of the utility model is that a high voltage inductance device is connected with a compensation capacitor in parallel; the upper end of the capacitor is connected with a fuse in series; simultaneously, a mutual inductor and a current meter are used to observe the situation of power factor compensation. The utility model has advantages of reduction of the damage of high voltage lines, reduction of the copper loss of transformers, improvement of distribution circuit, improvement of the output capability of transformers and reduction of line drop.
Description
The utility model belongs to the power factor compensation technical field.It is a kind of device that compensates the power factor that improves electrical network by reactive power in-situ to high-tension electricity perception equipment.
At present, mostly be on electrical network, power factor to be carried out centralized compensation, its deficiency is to compensate not thoroughly, has only compensated the idle of upper end electrical network, but can not compensate the idle of electrical network lower end, in addition, occurs overcompensation or undercompensation easily.The utility model is that the power factor compensation technology is used for high-tension apparatus.Its objective is the power factor that improves high-voltage fence to greatest extent, save electric energy.
The utility model principle is as follows:
1. basic principle: high-voltage capacitors connected in parallel device on high-tension electricity perception equipment, make the required reactive power of high-tension electricity perception equipment operation, most of or be (the supplying with) supplied with on the spot all by capacitor.That is: the energy exchange between power supply and the load mainly or is fully occurred between load and the capacitor, thereby power network current is significantly descended, power supply capacity is fully used, and saves electric energy to greatest extent.
2. operation principle: power supply A, B, C three-phase are by isolating switch GL, circuit breaker DL and motor M(inductive load) be connected.At motor M terminals and Y-connection building-out capacitor C1, C2, C3 are arranged, capacitor C 1, C2, C3 upper end are connected with fuse 1RD, 2RD, 3RD respectively, two-phase in A on compensating circuit, B, the C three-phase is equipped with two current transformer L1, L2, ammeter A1, A2, the public connection of A3 one end, 1 end of instrument transformer L1 is connected with the other end of ammeter A1,2 ends of instrument transformer L2 are connected with the other end of ammeter A3,1 of instrument transformer L1, L2 ' end and 2 ' end and ammeter A2 other end common ground, compensation arrangement is with motor nature switching, operation simultaneously.When isolating switch GL, circuit breaker DL were closed simultaneously, compensation arrangement and motor moved simultaneously, and building-out capacitor provides reactive power to motor, reduced power network current, improved power factor of electric network.When overload or short trouble took place device, fuse 1RD, 2RD, 3RD fusing played the protection building-out capacitor.During the compensation arrangement operation, can observe its ruuning situation by current transformer and ammeter.
The utility model has the advantages that: 1. reduce the high pressure line loss; 2. reduce the transformer copper loss; 3. improve the power supply fan-out capability of distribution line and transformer; 4. minimizing line drop.
Fig. 1 is a high-voltage power factor in-situ compensation device circuit diagram.
Wherein: GL is an isolating switch; DL is a circuit breaker; M is a motor; C1, C2, C3 are building-out capacitor; 1RD, 2RD, 3RD are fuse; L1, L2 are current transformer; A1, A2, A3 are ammeter.
Claims (1)
- A kind of high-voltage power factor in-situ compensation device is by building-out capacitor C 1, C 2, C 3, fuse 1RD, 2RD, 3RD, current transformer L 1, L 2, ammeter A 1, A 2, A 3Form, it is characterized in that building-out capacitor C in the terminals parallel in planetary connection of high-tension electricity perception equipment 1, C 2, C 3, capacitor C 1, C 2, C 3The upper end is connected with fuse 1RD, 2RD, 3RD respectively, and the two-phase in the A on compensating circuit, B, the C three-phase is equipped with two current transformer L 1, L 2, ammeter A 1, A 2, A 3The public connection of one end, instrument transformer L 11 end and ammeter A 1The other end connect instrument transformer L 22 ends and ammeter A 3The other end connect instrument transformer L 1, L 21 ' end and 2 ' end and ammeter A 2Other end common ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227904 CN2140579Y (en) | 1992-07-03 | 1992-07-03 | High voltage power factor compensating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227904 CN2140579Y (en) | 1992-07-03 | 1992-07-03 | High voltage power factor compensating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2140579Y true CN2140579Y (en) | 1993-08-18 |
Family
ID=33771726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92227904 Expired - Fee Related CN2140579Y (en) | 1992-07-03 | 1992-07-03 | High voltage power factor compensating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2140579Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014727A (en) * | 2020-07-15 | 2020-12-01 | 南方电网科学研究院有限责任公司 | Testing device for harmonic current switching capacity of tap switch |
-
1992
- 1992-07-03 CN CN 92227904 patent/CN2140579Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014727A (en) * | 2020-07-15 | 2020-12-01 | 南方电网科学研究院有限责任公司 | Testing device for harmonic current switching capacity of tap switch |
| CN112014727B (en) * | 2020-07-15 | 2022-09-16 | 南方电网科学研究院有限责任公司 | Testing device for harmonic current switching capacity of tap switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |