CN211151862U - High-voltage frequency conversion switching system - Google Patents
High-voltage frequency conversion switching system Download PDFInfo
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- CN211151862U CN211151862U CN202020058007.XU CN202020058007U CN211151862U CN 211151862 U CN211151862 U CN 211151862U CN 202020058007 U CN202020058007 U CN 202020058007U CN 211151862 U CN211151862 U CN 211151862U
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Abstract
The utility model provides a high-pressure frequency conversion switched systems includes: the high-voltage power supply, the first single-pole double-throw switch, the first frequency converter, the second single-pole double-throw switch, the second frequency converter, the third single-pole double-throw switch and the motor are arranged on the motor; the fixed end of the first single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the first single-pole double-throw switch is connected with a first frequency converter, and a contact b of the first single-pole double-throw switch is connected with a second frequency converter; the fixed end of the second single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the second single-pole double-throw switch is connected with the first frequency converter, and a contact b of the second single-pole double-throw switch is connected with the second frequency converter; the stationary end of the third single-pole double-throw switch is connected with the motor, the contact a of the third single-pole double-throw switch is connected with the first frequency converter, and the contact b of the third single-pole double-throw switch is connected with the second frequency converter. The utility model provides a high-pressure frequency conversion switched systems can realize that the multichannel converter of motor switches, satisfies the different application demands of motor, and has energy saving and consumption reduction's characteristics.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a high-pressure frequency conversion switched systems.
Background
When the motor is powered by the high-voltage power supply, the voltage frequency is adjusted by the frequency converter, and the energy-saving effect is achieved. In a high-voltage frequency conversion system in the prior art, usually, one motor is connected with one frequency converter and cannot be switched to other frequency converters, so that production and work are stopped when the frequency converter breaks down, the construction period is delayed, and loss is caused. In addition, the motor cannot be switched and connected among a plurality of frequency converters, so that the requirements of different application scenes of the motor cannot be met.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model provides a high-pressure frequency conversion switched systems.
The utility model provides a high-pressure frequency conversion switched systems includes: the high-voltage power supply, the first single-pole double-throw switch, the first frequency converter, the second single-pole double-throw switch, the second frequency converter, the third single-pole double-throw switch and the motor are arranged on the motor; the fixed end of the first single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the first single-pole double-throw switch is connected with a first frequency converter, and a contact b of the first single-pole double-throw switch is connected with a second frequency converter; the fixed end of the second single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the second single-pole double-throw switch is connected with the first frequency converter, and a contact b of the second single-pole double-throw switch is connected with the second frequency converter; the stationary end of the third single-pole double-throw switch is connected with the motor, the contact a of the third single-pole double-throw switch is connected with the first frequency converter, and the contact b of the third single-pole double-throw switch is connected with the second frequency converter.
The high-voltage variable-frequency switching system optionally comprises multiple sets of the first single-pole double-throw switch, the first frequency converter, the second single-pole double-throw switch, the second frequency converter and the third single-pole double-throw switch.
The high-voltage variable-frequency switching system optionally comprises a plurality of motors and a plurality of groups of first single-pole double-throw switches, first frequency converters, second single-pole double-throw switches, second frequency converters and third single-pole double-throw switches.
The high-voltage variable-frequency switching system comprises a high-voltage power supply, wherein the high-voltage power supply is 3.3KV-10 KV.
In the high-voltage variable-frequency switching system, the first single-pole double-throw switch, the second single-pole double-throw switch and the third single-pole double-throw switch are preferably arranged in the high-voltage control cabinet box.
The utility model provides a high-pressure frequency conversion switched systems through setting up first single-pole double-throw switch, first converter, second single-pole double-throw switch, second converter and third single-pole double-throw switch, can realize that the multichannel converter of motor switches, satisfies the different application demands of motor, and has energy saving and consumption reduction's characteristics.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage variable-frequency switching system provided by the present invention;
FIG. 2 is an external view of a high-voltage control cabinet;
FIG. 3 is a schematic diagram of the internal structure of the high-voltage control cabinet;
FIG. 4 is a front view of the high voltage control cabinet housing of FIG. 2;
FIG. 5 is a front view of the internal structure of the high voltage control cabinet housing of FIG. 3;
fig. 6 is a schematic structural diagram of a first embodiment of the high-voltage variable-frequency switching system provided by the present invention;
fig. 7 is a schematic structural diagram of a second embodiment of the high-voltage frequency conversion switching system provided by the present invention.
In the above figures: 1. a manual operating mechanism; 2. an electromagnetic lock; 3. an indicator light; 4. a voltage indicator; 5. a single pole double throw switch; 6. a high-voltage control cabinet body; 7. a cable clamp; 8. and a grounding copper bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is the utility model provides a high-voltage frequency conversion switched systems's schematic structure diagram. As shown in fig. 1, the utility model provides a high-pressure frequency conversion switched systems includes: the high-voltage power supply, the first single-pole double-throw switch, the first frequency converter, the second single-pole double-throw switch, the second frequency converter, the third single-pole double-throw switch and the motor are arranged on the motor; the fixed end of the first single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the first single-pole double-throw switch is connected with a first frequency converter, and a contact b of the first single-pole double-throw switch is connected with a second frequency converter; the fixed end of the second single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the second single-pole double-throw switch is connected with the first frequency converter, and a contact b of the second single-pole double-throw switch is connected with the second frequency converter; the stationary end of the third single-pole double-throw switch is connected with the motor, the contact a of the third single-pole double-throw switch is connected with the first frequency converter, and the contact b of the third single-pole double-throw switch is connected with the second frequency converter.
In a specific application, the high-voltage power supply is usually 3.3KV to 10KV, and the first single-pole double-throw switch, the second single-pole double-throw switch and the third single-pole double-throw switch are usually disposed in the high-voltage control cabinet box.
Fig. 2 is an external view of a high-voltage control cabinet, fig. 3 is an internal structure of the high-voltage control cabinet, fig. 4 is a front view of the high-voltage control cabinet in fig. 2, and fig. 5 is a front view of the internal structure of the high-voltage control cabinet in fig. 3. A single-pole double-throw switch 5, a manual operating mechanism 1, a voltage indicator 4, an indicator lamp 3, a grounding copper bar 8, an electromagnetic lock 2 and a cable clamp 7 are arranged in the high-voltage control cabinet box 6. The high-voltage control cabinet has the following characteristics: the high-voltage control cabinets are mechanically interlocked, so that the safe operation of the system is ensured; the high-voltage control cabinet cable enters from the bottom and is fixed by the cable clamp, so that the operation is convenient and easy; the cabinet door is provided with an electromagnetic lock, so that personal safety is ensured.
With continued reference to fig. 1, the first single-pole double-throw switch and the second single-pole double-throw switch are mechanically interlocked, the first single-pole double-throw switch (first QS), the second single-pole double-throw switch (second QS), and the third single-pole double-throw switch (third QS) are all switched at the position b when the second frequency converter operates, and the first single-pole double-throw switch, the second single-pole double-throw switch, and the third single-pole double-throw switch are all switched at the position a when the domestic medium voltage frequency converter operates. And the switching between the two frequency converters is manually finished when power failure occurs. The first frequency converter and the second frequency converter are mutually standby and are manually switched.
Fig. 6 is a schematic structural diagram of a first embodiment of the high-voltage frequency conversion switching system provided by the present invention. Referring to fig. 6, the high-voltage frequency conversion switching system in this embodiment includes multiple sets of a first single-pole double-throw switch, a first frequency converter, a second single-pole double-throw switch, a second frequency converter, and a third single-pole double-throw switch. In FIG. 6, QS-A1, transducer A1, QS-B1, transducer B1 and QS1 are grouped together; QS-A2, a frequency converter A2, QS-B2, a frequency converter B2 and QS2 form a group, QS-An, a frequency converter An, QS-Bn, a frequency converter Bn and QSn form a group, and one motor corresponds to a plurality of groups of first single-pole double-throw switches, first frequency converters, second single-pole double-throw switches, second frequency converters and third single-pole double-throw switches. If the frequency converter An is required to be connected with the motor to work, only the movable contact of QS-An in the system needs to be contacted with the contact a, the movable contact of QS-Bn is contacted with the contact a, the movable contact of QSn is contacted with the contact a, and other frequency converters in the system are in a disconnected state.
Fig. 7 is a schematic structural diagram of a second embodiment of the high-voltage frequency conversion switching system provided by the present invention. Referring to fig. 7, the high-voltage frequency conversion switching system in this embodiment includes a plurality of motors and a plurality of sets of a first single-pole double-throw switch, a first frequency converter, a second single-pole double-throw switch, a second frequency converter, and a third single-pole double-throw switch. In FIG. 7, QS-A1, transducer A1, QS-B1, transducer B1 and QS1 are grouped together; QS-A2, a frequency converter A2, QS-B2, a frequency converter B2 and QS2 form a group, QS-An, a frequency converter An, QS-Bn, a frequency converter Bn and QSn form a group, and the plurality of motors correspond to a plurality of groups of first single-pole double-throw switches, first frequency converters, second single-pole double-throw switches, second frequency converters and third single-pole double-throw switches. If the frequency converter An is connected with the motor n to work, the motor n is only required to be communicated with the fixed end of the QSn, the movable contact of the QS-An in the system is contacted with the contact a, the movable contact of the QS-Bn is contacted with the contact a, the movable contact of the QSn is contacted with the contact a, and the communication circuit of other frequency converters in the system and the motor n is in a disconnected state.
To sum up, the utility model provides a high-pressure frequency conversion switched systems through setting up first single-pole double-throw switch, first converter, second single-pole double-throw switch, second converter and third single-pole double-throw switch, can realize that the multichannel converter of motor switches, satisfies the different application demands of motor (for example, can switch another converter work when a converter trouble, ensures that production job stabilization goes on), and has energy saving and consumption reduction's characteristics.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A high-voltage variable-frequency switching system, comprising: the high-voltage power supply, the first single-pole double-throw switch, the first frequency converter, the second single-pole double-throw switch, the second frequency converter, the third single-pole double-throw switch and the motor are arranged on the motor; the fixed end of the first single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the first single-pole double-throw switch is connected with a first frequency converter, and a contact b of the first single-pole double-throw switch is connected with a second frequency converter; the fixed end of the second single-pole double-throw switch is connected with a high-voltage power supply, a contact a of the second single-pole double-throw switch is connected with the first frequency converter, and a contact b of the second single-pole double-throw switch is connected with the second frequency converter; the stationary end of the third single-pole double-throw switch is connected with the motor, the contact a of the third single-pole double-throw switch is connected with the first frequency converter, and the contact b of the third single-pole double-throw switch is connected with the second frequency converter.
2. The high-voltage, variable-frequency switching system according to claim 1, wherein the system comprises a plurality of sets of a first single-pole, double-throw switch, a first frequency converter, a second single-pole, double-throw switch, a second frequency converter, and a third single-pole, double-throw switch.
3. The high-voltage, variable-frequency switching system according to claim 1, wherein the system comprises a plurality of motors and a plurality of sets of a first single-pole double-throw switch, a first frequency converter, a second single-pole double-throw switch, a second frequency converter, and a third single-pole double-throw switch.
4. The high-voltage variable-frequency switching system according to claim 1, wherein the high-voltage power supply is 3.3KV-10 KV.
5. The high-voltage variable-frequency switching system according to any one of claims 1 to 4, wherein the first single-pole double-throw switch, the second single-pole double-throw switch and the third single-pole double-throw switch are disposed in a high-voltage control cabinet box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020058007.XU CN211151862U (en) | 2020-01-10 | 2020-01-10 | High-voltage frequency conversion switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020058007.XU CN211151862U (en) | 2020-01-10 | 2020-01-10 | High-voltage frequency conversion switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151862U true CN211151862U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020058007.XU Active CN211151862U (en) | 2020-01-10 | 2020-01-10 | High-voltage frequency conversion switching system |
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|---|---|
| CN (1) | CN211151862U (en) |
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2020
- 2020-01-10 CN CN202020058007.XU patent/CN211151862U/en active Active
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