CN202872370U - 3 to 35000 KV graded compensation type automatic voltage regulating device - Google Patents
3 to 35000 KV graded compensation type automatic voltage regulating device Download PDFInfo
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- CN202872370U CN202872370U CN 201220224084 CN201220224084U CN202872370U CN 202872370 U CN202872370 U CN 202872370U CN 201220224084 CN201220224084 CN 201220224084 CN 201220224084 U CN201220224084 U CN 201220224084U CN 202872370 U CN202872370 U CN 202872370U
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Abstract
The utility model provides a 3 to 35000 KV graded compensation type automatic voltage regulating device and relates to the technical field of voltage compensation. The 3 to 35000 KV graded compensation type automatic voltage regulating device comprises a compensation transformer, a low voltage contactor group, a measurement feedback control device and an in-phase measurement power supply transformer. A secondary compensation winding of the compensation transformer is connected in series with a phase line circuit of a high voltage distribution network. The 3 to 35000 KV graded compensation type automatic voltage regulating device is characterized in that the in-phase measurement power supply transformer comprises a primary winding which is connected with a three-phase circuit of the high voltage distribution network and two secondary windings which are respectively connected with the low voltage contactor group and are used for measurement; and the compensation transformer comprises two identical primary windings which are connected with the low voltage contactor group and the secondary compensation winding which is connected in series with the phase line circuit of the high voltage distribution network. The 3 to 35000 KV graded compensation type automatic voltage regulating device has the advantages of small volume, light weight, no carbon brush, no servo motor, no mechanical transmission and the like, has the obvious effect of energy saving and automatically and stably outputs voltage in an unattended period.
Description
Technical field
The utility model relates to a kind of simple in structure, strong adaptability and has 35kV and the following grading compensation formula automatic pressure regulating device of energy-saving effect.
Background technology
At present, in power supply process, exist supply line head, line loss is high and change in voltage is large problem.In order to address the above problem, generally adopted on the market on the 35kV step-down transformer installing on-load voltage regulating switch to solve.So that the 3 ~ 10kV voltage after the 35kV step-down remains in the scope of rated voltage permission, still can't solve the large problem of 3 ~ 10kV distal line change in voltage, adopting dispersion local compensation Voltage Technique in the large place of change in voltage is comparatively desirable way.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure, strong adaptability and has the 35kV of energy-saving effect and following large capacity voltage grading compensation formula automatic pressure regulating device.
The technical problem that the utility model solves realizes by the following technical solutions:
3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices, comprise compensator transformer, lv contactor group, measure feed back control system and same-phase measurement supply power transformer, the secondary compensation winding of described compensator transformer is serially connected in the phase line loop of high voltage distribution network, described lv contactor group realizes being electrically connected with the armature winding of described compensator transformer, measure the described same-phase measurement supply power transformer that share with compensation and be connected on the phase line loop of high voltage distribution network, described measurement feed back control system is realized being electrically connected with described lv contactor group.It is characterized in that: described same-phase is measured the supply power transformer and is comprised that armature winding on the three-phase line that is connected to high voltage distribution network and two are connected on respectively the secondary winding on the upper and described measurement feed back control system of described lv contactor group; Described compensator transformer comprises: two identical armature windings and that are connected on the described lv contactor group are serially connected in the mutually secondary compensation winding in the line loop of high voltage distribution network.
Described lv contactor group comprises that contactor that three serial parallel conversions connect, two are just connecing for electric contactor, two reversal connections for electric contactors and a surge absorption device.
Described surge absorption device comprises circuit protection contactor and the circuit protection resistance of serial connection.
Between described same-phase measurement supply power transformer and described lv contactor group, also be connected with an inspection switch.
A contact of each contactor that described lv contactor group comprises with the mode that the armature winding of described compensator transformer is connected is: a contact of the first serial parallel conversion contactor is connected between the input of the output of the first armature winding and the second armature winding; A contact of the second serial parallel conversion contactor is connected between the input Same Name of Ends of two armature windings; A contact of the 3rd connection in series-parallel contactor is connected between the output Same Name of Ends of two armature windings; First contact that is just connecing for electric contactor is connected between the output and phase line of the second armature winding; Second contact that is just connecing for electric contactor is connected between the input and the neutral line of the first armature winding; The first reversal connection is connected between the output and the neutral line of the second armature winding for a contact of electric contactor; The second reversal connection is connected between the input and phase line of the first armature winding for a contact of electric contactor.
The utility model comprises following action step:
Straight-through gear: positive and negatively connect power supply and disconnect with contactor, first, second and third serial parallel conversion contactor is connected, this moment, the main contact of first, second and third serial parallel conversion contactor was closed, made the armature winding short circuit of described compensator transformer, so bucking voltage is zero;
Rise the I gear: first and second is just connecing for electric contactor and is connecting, first and second reversal connection disconnects for electric contactor, the first serial parallel conversion contactor is connected, second and third serial parallel conversion contactor disconnects, make the rear forward of armature winding series connection of described compensator transformer access described same-phase measurement supply power transformer secondary output winding, obtain rising the bucking voltage of one-level at the secondary compensation winding of described compensator transformer;
Rise the II gear: first and second is just connecing for electric contactor and is connecting, first and second reversal connection disconnects for electric contactor, second and third serial parallel conversion contactor is connected, the first serial parallel conversion contactor disconnects, forward accesses the secondary winding that described same-phase is measured the supply power transformer after making the armature winding parallel connection of described compensator transformer, obtains rising the bucking voltage of secondary at the secondary compensation winding of described compensator transformer;
Fall the I gear: first and second reversal connection is connected for electric contactor, first and second is just connecing for electric contactor and is disconnecting, the first serial parallel conversion contactor is connected, second and third serial parallel conversion contactor disconnects, make the secondary winding of the described same-phase measurement of the rear oppositely access of the armature winding series connection supply power transformer of described compensator transformer, obtain falling the bucking voltage of one-level at the secondary compensation winding of described compensator transformer;
Fall the II gear: first and second reversal connection is connected for electric contactor, first and second is just connecing for electric contactor and is disconnecting, second and third serial parallel conversion contactor is connected, the first serial parallel conversion contactor disconnects, make the armature winding parallel connection of described compensator transformer oppositely access afterwards the secondary winding that described same-phase is measured the supply power transformer, obtain falling the bucking voltage of secondary at the secondary compensation winding of described compensator transformer.
The beneficial effect that the utlity model has is: whole device volume is little, lightweight, non-carbonate, without advantages such as servomotor, machinery-free transmissions, and has obvious energy-saving effect.
Description of drawings
Fig. 1 is the utility model: the overall structure schematic diagram of 3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Embodiment: with reference to shown in Figure 1,3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices, comprise compensator transformer 1, lv contactor group 2, measure feed back control system 3 and same-phase and measure supply power transformer 4, the secondary compensation winding of described compensator transformer 1 is serially connected in the phase line loop of high voltage distribution network, described lv contactor group 2 realizes being electrically connected with the armature winding of described compensator transformer 1, measure the described same-phase measurement supply power transformer 4 that share with compensation and be connected on the phase line loop of high voltage distribution network, described measurement feed back control system 3 is realized being electrically connected with described lv contactor group 2.Described same-phase measure supply power transformer 4 comprise armature winding on the three-phase line that is connected to high voltage distribution network and two be connected on respectively on the described lv contactor group 2 and described measurement feed back control system 3 on secondary winding; Described compensator transformer 1 comprises: two identical armature windings and that are connected on the described lv contactor group 2 are serially connected in the mutually secondary compensation winding in the line loop of high voltage distribution network.
Described lv contactor group 2 comprises three serial parallel conversion contactor K1, K2, K3, and two are just connecing for electric contactor Kd1, Kd2, and two reversal connections are for electric contactor Kh1, Kh2 and a surge absorption device 5.
Described surge absorption device 5 comprises circuit protection contactor K4 and the circuit protection resistance R of serial connection.
Between described same-phase measurement supply power transformer 4 and described lv contactor group 2, also be connected with an inspection switch Q.
A contact of each contactor that described lv contactor group 2 comprises with the mode that the armature winding of described compensator transformer 1 is connected is: the contact of the first serial parallel conversion contactor K1 is connected between the input of the output of the first armature winding and the second armature winding; The contact of the second serial parallel conversion contactor K2 is connected between the input Same Name of Ends of two armature windings; The contact of the 3rd connection in series-parallel contactor K3 is connected between the output Same Name of Ends of two armature windings; First contact that is just connecing for electric contactor Kd1 is connected between the output and phase line of the second armature winding; Second contact that is just meeting confession electric contactor Kd2 is connected between the input and neutral company of the first armature winding; The first reversal connection is connected between the output and the neutral line of the second armature winding for the contact of electric contactor Kh1; The second reversal connection is connected between the input and phase line of the first armature winding for the contact of electric contactor Kh2.
The utility model comprises following action step:
Straight-through gear: positive and negative connecing powered with contactor Kd1, Kd2, Kh1, Kh2 disconnection, first, second and third serial parallel conversion contactor K1, K2, K3 connect, the main contact of first, second and third serial parallel conversion contactor K1, K2, K3 is closed at this moment, make the armature winding short circuit of described compensator transformer 1, so bucking voltage is zero;
Rise the I gear: first and second is just connecing for electric contactor Kd1, Kd2 and is connecting, first and second reversal connection disconnects for electric contactor Kh1, Kh2, the first serial parallel conversion contactor K1 connects, second and third serial parallel conversion contactor K2, K3 disconnect, make the rear forward of armature winding series connection of described compensator transformer 1 access the secondary winding that described same-phase is measured supply power transformer 4, obtain rising the bucking voltage of one-level at the secondary compensation winding of described compensator transformer 1;
Rise the II gear: first and second is just connecing for electric contactor Kd1, Kd2 and is connecting, first and second reversal connection disconnects for electric contactor Kh1, Kh2, second and third serial parallel conversion contactor K2, K3 connect, the first serial parallel conversion contactor K1 disconnects, forward accesses the secondary winding that described same-phase is measured supply power transformer 4 after making the armature winding parallel connection of described compensator transformer 1, obtains rising the bucking voltage of secondary at the secondary compensation winding of described compensator transformer 1;
Fall the I gear: first and second reversal connection is connected for electric contactor Kh1, Kh2, first and second is just connecing for electric contactor Kd1, Kd2 and is disconnecting, the first serial parallel conversion contactor K1 connects, second and third serial parallel conversion contactor K2, K3 disconnect, make the secondary winding of the described same-phase measurement of the rear oppositely access of the armature winding series connection supply power transformer 4 of described compensator transformer 1, obtain falling the bucking voltage of one-level at the secondary compensation winding of described compensator transformer 1;
Fall the II gear: first and second reversal connection is connected for electric contactor Kh1, Kh2, first and second is just connecing for electric contactor Kd1, Kd2 and is disconnecting, second and third serial parallel conversion contactor K2, K3 connect, the first serial parallel conversion contactor K1 disconnects, make the armature winding parallel connection of described compensator transformer 1 oppositely access afterwards the secondary winding that described same-phase is measured supply power transformer 4, obtain falling the bucking voltage of secondary at the secondary compensation winding of described compensator transformer 1.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1.3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices, comprise compensator transformer, lv contactor group, measure feed back control system and same-phase measurement supply power transformer, the secondary compensation winding of described compensator transformer is serially connected in the phase line loop of high voltage distribution network, described lv contactor group realizes being electrically connected with the armature winding of described compensator transformer, measure the described same-phase measurement supply power transformer that share with compensation and be connected on the phase line loop of high voltage distribution network, described measurement feed back control system is realized being electrically connected with described lv contactor group.It is characterized in that: described same-phase is measured the supply power transformer and is comprised that armature winding on the three-phase line that is connected to high voltage distribution network and two are connected on respectively the secondary winding on the upper and described measurement feed back control system of described lv contactor group; Described compensator transformer comprises: two identical armature windings and that are connected on the described lv contactor group are serially connected in the mutually secondary compensation winding in the line loop of high voltage distribution network.
2. 3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices according to claim 1 is characterized in that: described lv contactor group comprises that contactor that three serial parallel conversions connect, two are just connecing for electric contactor, two reversal connections for electric contactors and a surge absorption device.
3. 3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices according to claim 2, it is characterized in that: described surge absorption device comprises circuit protection contactor and the circuit protection resistance of serial connection.
4. 3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices according to claim 1 is characterized in that: measure between supply power transformer and the described lv contactor group in described same-phase and also be connected with an inspection switch.
5. 3 ~ 35 kilovolts of grading compensation formula automatic pressure regulating devices according to claim 1 and 2, it is characterized in that: a contact of each contactor that described lv contactor group comprises with the mode that the armature winding of described compensator transformer is connected is: a contact of the first serial parallel conversion contactor is connected between the input of the output of the first armature winding and the second armature winding; A contact of the second serial parallel conversion contactor is connected between the input Same Name of Ends of two armature windings; A contact of the 3rd connection in series-parallel contactor is connected between the output Same Name of Ends of two armature windings; First contact that is just connecing for electric contactor is connected between the output and phase line of the second armature winding; Second contact that is just connecing for electric contactor is connected between the input and the neutral line of the first armature winding; The first reversal connection is connected between the output and the neutral line of the second armature winding for a contact of electric contactor; The second reversal connection is connected between the input and phase line of the first armature winding for a contact of electric contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224084 CN202872370U (en) | 2012-05-16 | 2012-05-16 | 3 to 35000 KV graded compensation type automatic voltage regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224084 CN202872370U (en) | 2012-05-16 | 2012-05-16 | 3 to 35000 KV graded compensation type automatic voltage regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872370U true CN202872370U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220224084 Expired - Fee Related CN202872370U (en) | 2012-05-16 | 2012-05-16 | 3 to 35000 KV graded compensation type automatic voltage regulating device |
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| CN (1) | CN202872370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021938A (en) * | 2018-11-12 | 2019-07-16 | 国家电网有限公司 | A kind of low-voltage circuit adjusts and compensation device and its compensation method |
| CN110261808A (en) * | 2019-06-10 | 2019-09-20 | 国网湖南省电力有限公司 | A kind of vehicle-mounted GIS formula table source device |
-
2012
- 2012-05-16 CN CN 201220224084 patent/CN202872370U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021938A (en) * | 2018-11-12 | 2019-07-16 | 国家电网有限公司 | A kind of low-voltage circuit adjusts and compensation device and its compensation method |
| CN110261808A (en) * | 2019-06-10 | 2019-09-20 | 国网湖南省电力有限公司 | A kind of vehicle-mounted GIS formula table source device |
| CN110261808B (en) * | 2019-06-10 | 2024-04-16 | 国网湖南省电力有限公司 | Vehicle-mounted GIS type meter source device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20180516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |