CN113809753A - Voltage stabilizer for encapsulated coil transformer - Google Patents
Voltage stabilizer for encapsulated coil transformer Download PDFInfo
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- CN113809753A CN113809753A CN202110989213.1A CN202110989213A CN113809753A CN 113809753 A CN113809753 A CN 113809753A CN 202110989213 A CN202110989213 A CN 202110989213A CN 113809753 A CN113809753 A CN 113809753A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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Abstract
The invention relates to the technical field of electric power, in particular to a series of automatic voltage stabilizing devices of a power transformer, which have the advantages of simple control, safety, reliability, high voltage regulating speed, wide input voltage, high voltage stabilizing precision and long continuous, safe and operating time, and more particularly relates to a voltage stabilizing device of a transformer with an encapsulated coil. The invention has simple control, safety and reliability, fast voltage regulation speed of less than or equal to 20 milliseconds, input voltage of more than or equal to 120 percent of rated voltage value, output voltage precision of less than or equal to 3 percent, continuous safe operation time of less than or equal to 1 ten thousand hours, rated capacity of less than or equal to 5000KVA, long service life of less than or equal to 25 years, uninterrupted automatic bypass function, real-time automatic monitoring function and the like.
Description
Technical Field
The invention relates to the field of power technology, in particular to a voltage stabilizing device of an encapsulated coil transformer.
Background
The transformer is an important device for power distribution of a power grid, and the problem of power supply shortage needs to be solved urgently when various regions in the world are in the peak period of power construction at present. In order to relieve the situation of short power supply, power companies in various regions around the world increase the total length of a power transmission line, increase the investment scale of power grid construction, further expand the transformation capacity, provide a wide development space for the transformer industry, and promote the good development of the transformer manufacturing industry.
Voltage quality issues include the following:
voltage deviation: the operation voltage value is within the range of +/-10% of the rated voltage value;
under voltage: the operation voltage value is within the range of 90-80% of the rated voltage value, and the voltage change lasts for more than 1 minute;
③ overvoltage: the operation voltage value is within the range of 110-120% of the rated voltage value, and the voltage change lasts for more than 1 minute;
fourthly, short-time undervoltage, wherein the time range is 3 seconds to 1 minute;
short-time overvoltage, wherein the time range is 3 seconds to 1 minute;
sixthly, temporary overvoltage is carried out, wherein the time range is 60 milliseconds to 3 seconds;
seventhly, temporarily undervoltage, wherein the time range is 60 milliseconds to 3 seconds;
the instantaneous overvoltage is in the time range of 10-60 milliseconds;
ninthly, instantaneous under-voltage, wherein the time range is 10-60 milliseconds;
the three-phase voltage unbalance of the R is that the unevenness of the running three-phase voltage is more than or equal to 2 percent and the short time is more than or equal to 4 percent.
According to the safety voltage requirement of the electric equipment, the voltage difference change of the end voltage of the electric equipment is +/-5%, some requirements are higher, the voltage difference change of the end voltage of the electric equipment is less than or equal to 2.5% and the unbalance degree of the three-phase voltage is less than or equal to 2.6%.
The main voltage regulating transformers on the market at present have 3: the transformer comprises a constant magnetic flux voltage regulating transformer, a variable magnetic flux voltage regulating transformer and an on-load voltage regulating transformer. Firstly, the constant magnetic flux voltage regulating transformer adopts the adjustment of the number of turns of a high-voltage winding to change the transformation ratio relation between the high-voltage winding and a low-voltage winding so as to realize the stability of output voltage. It has the advantages of low price, reliable performance, and no synchronous adjustment along with the voltage change, and can only be adjusted after power failure. Secondly, the variable magnetic flux voltage regulating transformer adopts the adjustment of the number of turns of the low-voltage winding to change the transformation ratio relation between the high-voltage winding and the low-voltage winding so as to realize the stability of output voltage. It has low cost and reliable performance, and can not be synchronously regulated with the change of voltage, and can only be regulated after power failure. And thirdly, the on-load tap changing transformer adopts a multi-tap excitation winding to be connected in series with the high-voltage winding, and the tap of the excitation winding is adjusted to change the transformation ratio of the high-voltage winding and the low-voltage winding so as to actually output the stable voltage. However, the on-load tap changer is difficult to avoid arcing during voltage regulation, and therefore requires frequent maintenance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a series of automatic voltage stabilizing devices of the power transformer, which have simple operation, safety and reliability, high voltage regulating speed of less than or equal to 10 milliseconds, wide input voltage of more than or equal to 125 percent and 75 percent of rated voltage value, high output voltage precision of less than or equal to 2 percent, continuous safe operation time of less than or equal to 1 ten thousand hours, uninterrupted automatic bypass function, real-time automatic monitoring function and the like. The series of automatic voltage stabilizing devices of the power transformers are divided into an automatic voltage stabilizing device for class I power transformers, an automatic voltage stabilizing device for class II combined power transformers, an automatic voltage stabilizing device for class III power transformers and an automatic voltage stabilizing device for class IV combined power transformers, wherein the class I comprises a class I distribution transformer voltage stabilizing device, a class I enveloping coil transformer voltage stabilizing device, a class I split transformer voltage regulating device, a class I iv double-winding transformer voltage stabilizing device, a class I v double-winding transformer automatic voltage regulating device and a class I vi transformer voltage stabilizing device, the class II comprises a class II i distribution transformer voltage regulating device, a class II ii distribution transformer automatic voltage stabilizing device, a class I enveloping coil transformer voltage regulating device, a class II iv double-winding transformer voltage regulating device, a class II transformer voltage regulating device, a class III double-winding transformer voltage regulating device, III ii transformer automatic voltage regulation device, III iii transformer voltage regulation device, IV class includes IVi transformer automatic voltage regulator, IVii double winding transformer automatic voltage regulator, IViii double winding transformer voltage regulation device.
The applicant finds that the first constant flux regulating transformer and the second variable flux regulating transformer can not be synchronously adjusted along with the voltage change, and can only be adjusted after power failure, so that the use of the transformer is troublesome and can not play an effective voltage stabilizing role, and also finds that the excitation current of the transformer is increased when the voltage is increased, so that the magnetic induction intensity B in an iron core is increased, the iron loss is increased, and the temperature rise of the iron core promotes the accelerated insulation aging of a winding. The on-load tap changer is easy to generate electric arc when adjusting voltage, and the phenomenon that short-time undervoltage of power supply can be caused if the on-load tap changer is not frequently overhauled is further found, so that advanced electric equipment stops working or is damaged, even voltage breakdown of a power supply system can be caused, and disorder is caused to production operation and working life of the power utilization area.
The technical scheme of the invention is that the voltage stabilizing device of the encapsulated coil transformer comprises the encapsulated coil transformer and a plurality of groups of voltage counteractors, and is applied to various voltage grade classifications, various cooling classifications, various shell classifications and various connection classifications and combination classifications except a series of automatic voltage stabilizing devices of the power transformer described in the abstract of the specification. The encapsulated coil transformer further includes an encapsulated coil transformer high voltage winding U1, an encapsulated coil transformer high voltage winding U2, an encapsulated coil transformer high voltage winding V1, an encapsulated coil transformer high voltage winding V2, an encapsulated coil transformer high voltage winding W1, an encapsulated coil transformer high voltage winding W2, an encapsulated coil transformer low voltage winding U, an encapsulated coil transformer low voltage winding V, an encapsulated coil transformer low voltage winding W, an encapsulated coil transformer low voltage winding yn, and a plurality of encapsulated coil transformer tuning windings R1, an encapsulated coil transformer tuning winding R2, an encapsulated coil transformer tuning winding S1, an encapsulated coil transformer tuning winding S2, an encapsulated coil transformer tuning winding T1, an encapsulated coil transformer tuning winding T2, the voltage canceller further includes a voltage canceller winding X1, a voltage canceller winding X2, a voltage canceller winding Y1, Voltage canceller winding Y2, voltage canceller winding Z1, voltage canceller winding Z2, voltage canceller winding x1, voltage canceller winding x2, voltage canceller winding Y1, voltage canceller winding Y2, voltage canceller winding Z1, and voltage canceller winding Z2.
In a further improvement, said encapsulated coil transformer tuning winding R1 is connected to encapsulated coil transformer tuning winding T2, said distribution transformer tuning winding R2 is connected to encapsulated coil transformer tuning winding S1, said encapsulated coil transformer tuning winding S2 is connected to encapsulated coil transformer tuning winding T1, said encapsulated coil transformer tuning winding R1 is further connected to voltage canceller winding X1, said encapsulated coil transformer tuning winding S1 is further connected to voltage canceller winding Y1, said encapsulated coil transformer tuning winding T1 is further connected to voltage canceller winding Z1, said voltage canceller winding Z2 is connected to voltage canceller winding X1, said voltage canceller winding X2 is connected to voltage canceller winding Y1, said voltage canceller winding Y2 is connected to voltage canceller winding Z1, said voltage canceller winding X1 is connected to voltage canceller winding Z2, the voltage canceller winding x2 is connected to a voltage canceller winding y1, and the voltage canceller winding y2 is connected to a voltage canceller winding z 1.
In a further improvement, the bidirectional thyristor KSA1, the bidirectional thyristor KSA2, the bidirectional thyristor KSB1, the bidirectional thyristor KSB2, the bidirectional thyristor KSC1 and the bidirectional thyristor KSC2 are further included, the bidirectional thyristor KSA1 is connected between the voltage canceller winding x1 and the voltage canceller winding x2, the bidirectional thyristor KSB1 is connected between the voltage canceller winding y1 and the voltage canceller winding y2, the bidirectional thyristor KSC1 is connected between the voltage canceller winding z1 and the voltage canceller winding z2, one end of the bidirectional thyristor KSA2 is connected to the voltage canceller winding x2, one end of the bidirectional thyristor KSB2 is connected to the voltage canceller winding y2, and one end of the bidirectional thyristor KSC2 is connected to the voltage canceller winding z 2.
In a further improvement, the system further comprises a control protection switch Q1, a control protection switch Q2 and a control protection switch Q3, wherein one end of the control protection switch Q1 is connected to the other end of the bidirectional thyristor KSA2, one end of the control protection switch Q2 is connected to the other end of the bidirectional thyristor KSB2, and one end of the control protection switch Q3 is connected to the other end of the bidirectional thyristor KSC 2.
The further improvement is that the transformer further comprises a three-phase self-coupling step-down transformer, a three-phase self-coupling step-down transformer winding U1, a three-phase self-coupling step-down transformer winding U2, a three-phase self-coupling step-down transformer winding V1, a three-phase self-coupling step-down transformer winding V2, a three-phase self-coupling step-down transformer winding W1 and a three-phase self-coupling step-down transformer winding W2, wherein the three-phase self-coupling step-down transformer winding U1, the three-phase self-coupling step-down transformer winding V1 and the three-phase self-coupling step-down transformer winding W1 are respectively and correspondingly connected to the other ends of a control protection switch Q1, a control protection switch Q2 and a control protection switch Q3, and the other ends of the three-phase self-coupling step-down transformer winding U2, the three-phase self-coupling step-down transformer winding V2 and the three-phase self-coupling step-down transformer winding W2 are respectively and correspondingly connected to an encapsulated coil transformer high-voltage winding U1, an encapsulated coil transformer high-voltage winding V1 and an encapsulated coil 1.
The improved touch screen comprises an operating system, a main control system and a driving system, wherein the three-phase input voltage, the three-phase current, the three-phase output voltage, the three-phase current and each group of voltage combined windings are connected to the main control system, the operating system and the driving system are connected to the main control system, the operating system is a touch screen operation interface, and the main control system controls the voltage combined windings to work through the driving system.
By adopting the technical scheme, the invention has the beneficial effects that: the invention provides a voltage stabilizing device of an encapsulated coil transformer, which is particularly shown in figure 1, when power is on or input voltage is equal to rated voltage, a main control system controls a primary winding of a voltage canceller to be in short circuit, so that output voltage is equal to the current voltage value. When the input voltage is higher than the rated voltage value, the main control system controls the bidirectional thyristors KSA1, KSB1 and KSC1 to be switched off, and simultaneously, the primary winding counteracts the voltage of the secondary winding to enable the output voltage to be equal to the preset voltage value.
The invention has simple control, safety and reliability, high voltage regulation speed of less than or equal to 20 milliseconds, input voltage of more than or equal to 120 percent of rated voltage value, output voltage precision of less than or equal to 3 percent, continuous safe operation time of less than or equal to 1 ten thousand hours, rated capacity of less than or equal to 5000KVA, long service life of less than or equal to 25 years, uninterrupted automatic bypass function, real-time automatic monitoring function and the like, and can make up the defects of products on the market. The concrete expression is as follows: the constant flux voltage regulating transformer and the variable flux voltage regulating transformer can not be synchronously adjusted along with the voltage change, and can only be adjusted after power failure, so that the transformer is troublesome to use and cannot play an effective voltage stabilizing role, and the excitation current of the transformer is increased when the voltage is increased, so that the magnetic induction intensity B in an iron core is increased, the iron loss is increased, and the temperature rise of the iron core promotes the accelerated insulation aging of a winding. And the on-load tap changer is easy to generate electric arc when adjusting voltage, and short-time undervoltage of power supply can be caused if the on-load tap changer is not frequently overhauled, so that advanced electric equipment stops working or is damaged, even voltage breakdown of a power supply system can be caused, and confusion is caused to production operation and working life of the power utilization area.
Description of the drawings:
fig. 1 is a schematic circuit diagram of a voltage stabilizing device of a transformer with a coil encapsulated in the embodiment of the invention:
Detailed Description
The invention will be described in further detail below with reference to fig. 1 and the specific embodiments:
as shown in fig. 1, an encapsulated coil transformer voltage stabilizer includes an encapsulated coil transformer and a plurality of sets of voltage cancellers, and is applied to various voltage class classifications, various cooling classifications, various housing classifications, and various connection classifications and combination classifications except for a series of power transformer automatic voltage stabilizers described in the abstract of the present specification. The encapsulated coil transformer further includes an encapsulated coil transformer high voltage winding U1, an encapsulated coil transformer high voltage winding U2, an encapsulated coil transformer high voltage winding V1, an encapsulated coil transformer high voltage winding V2, an encapsulated coil transformer high voltage winding W1, an encapsulated coil transformer high voltage winding W2, an encapsulated coil transformer low voltage winding U, an encapsulated coil transformer low voltage winding V, an encapsulated coil transformer low voltage winding W, an encapsulated coil transformer low voltage winding yn, and a plurality of encapsulated coil transformer tuning windings R1, an encapsulated coil transformer tuning winding R2, an encapsulated coil transformer tuning winding S1, an encapsulated coil transformer tuning winding S2, an encapsulated coil transformer tuning winding T1, an encapsulated coil transformer tuning winding T2, the voltage canceller further includes a voltage canceller winding X1, a voltage canceller winding X2, a voltage canceller winding Y1, Voltage canceller winding Y2, voltage canceller winding Z1, voltage canceller winding Z2, voltage canceller winding x1, voltage canceller winding x2, voltage canceller winding Y1, voltage canceller winding Y2, voltage canceller winding Z1, and voltage canceller winding Z2. Further comprising said encapsulated coil transformer tuning winding R1 connected to encapsulated coil transformer tuning winding T2, said distribution transformer tuning winding R2 connected to encapsulated coil transformer tuning winding S1, said encapsulated coil transformer tuning winding S2 connected to encapsulated coil transformer tuning winding T1, said encapsulated coil transformer tuning winding R1 further connected to voltage canceller winding X1, said encapsulated coil transformer tuning winding S1 further connected to voltage canceller winding Y1, said encapsulated coil transformer tuning winding T1 further connected to voltage canceller winding Z1, said voltage canceller winding Z2 connected to voltage canceller winding X1, said voltage canceller winding X2 connected to voltage canceller winding Y1, said voltage canceller winding Y2 connected to voltage canceller winding Z1, said voltage canceller winding X1 connected to voltage canceller winding Z2, the voltage canceller winding x2 is connected to a voltage canceller winding y1, and the voltage canceller winding y2 is connected to a voltage canceller winding z 1. The bidirectional thyristor KSA and KSC hybrid power supply further comprises a bidirectional thyristor KSA1, a bidirectional thyristor KSA2, a bidirectional thyristor KSB1, a bidirectional thyristor KSB2, a bidirectional thyristor KSC1 and a bidirectional thyristor KSC2, wherein the bidirectional thyristor KSA1 is connected between a voltage canceller winding x1 and a voltage canceller winding x2, the bidirectional thyristor KSB1 is connected between a voltage canceller winding y1 and a voltage canceller winding y2, the bidirectional thyristor KSC1 is connected between a voltage canceller winding z1 and a voltage canceller winding z2, one end of the bidirectional thyristor KSA2 is connected to the voltage canceller winding x2, one end of the bidirectional thyristor KSB2 is connected to the voltage canceller winding y2, and one end of the bidirectional thyristor KSC2 is connected to the voltage canceller winding z 2. The protection circuit further comprises a control protection switch Q1, a control protection switch Q2 and a control protection switch Q3, one end of the control protection switch Q1 is connected to the other end of the bidirectional thyristor KSA2, one end of the control protection switch Q2 is connected to the other end of the bidirectional thyristor KSB2, and one end of the control protection switch Q3 is connected to the other end of the bidirectional thyristor KSC 2. The three-phase self-coupling voltage reducer comprises a three-phase self-coupling voltage reducer winding U1, a three-phase self-coupling voltage reducer winding U2, a three-phase self-coupling voltage reducer winding V1, a three-phase self-coupling voltage reducer winding V2, a three-phase self-coupling voltage reducer winding W1 and a three-phase self-coupling voltage reducer winding W2, wherein the three-phase self-coupling voltage reducer winding U1, the three-phase self-coupling voltage reducer winding V1 and the three-phase self-coupling voltage reducer winding W1 are respectively and correspondingly connected to the other ends of a control protection switch Q1, a control protection switch Q2 and a control protection switch Q3, and the other ends of the three-phase self-coupling voltage reducer winding U2, the three-phase self-coupling voltage reducer winding V2 and the three-phase self-coupling voltage reducer winding W2 are respectively and correspondingly connected to an encapsulated coil transformer high-voltage winding U1, an encapsulated coil transformer high-voltage winding V1 and an encapsulated coil high-voltage winding W1. The three-phase input voltage, the current, the three-phase output voltage, the current and each group of voltage combined windings are connected to the main control system, the operating system and the driving system are connected to the main control system, the operating system is a touch screen operation interface, and the main control system controls the voltage combined windings to work through the driving system.
The working principle is as follows: when the power is switched on or the input voltage is equal to the rated voltage, the main control system controls the primary winding of the voltage canceller to be in short circuit, so that the output voltage is equal to the current voltage value. When the input voltage is higher than the rated voltage value, the main control system controls the bidirectional thyristors KSA1, KSB1 and KSC1 to be switched off, and simultaneously, the primary winding counteracts the voltage of the secondary winding to enable the output voltage to be equal to the preset voltage value.
The present invention has been described in detail with reference to the specific embodiments, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be viewed as the protection of the invention.
Claims (6)
1. A voltage stabilizer for an encapsulated coil transformer, comprising: the automatic voltage stabilizer comprises an encapsulated coil transformer and a plurality of groups of voltage counteractors, and is applied to various voltage grade classifications, various cooling classifications, various shell classifications and various connection classifications and combination classifications except a series of automatic voltage stabilizer of the power transformer described in the abstract of the specification; the encapsulated coil transformer further includes an encapsulated coil transformer high voltage winding U1, an encapsulated coil transformer high voltage winding U2, an encapsulated coil transformer high voltage winding V1, an encapsulated coil transformer high voltage winding V2, an encapsulated coil transformer high voltage winding W1, an encapsulated coil transformer high voltage winding W2, an encapsulated coil transformer low voltage winding U, an encapsulated coil transformer low voltage winding V, an encapsulated coil transformer low voltage winding W, an encapsulated coil transformer low voltage winding yn, and a plurality of encapsulated coil transformer tuning windings R1, an encapsulated coil transformer tuning winding R2, an encapsulated coil transformer tuning winding S1, an encapsulated coil transformer tuning winding S2, an encapsulated coil transformer tuning winding T1, an encapsulated coil transformer tuning winding T2, the voltage canceller further includes a voltage canceller winding X1, a voltage canceller winding X2, a voltage canceller winding Y1, Voltage canceller winding Y2, voltage canceller winding Z1, voltage canceller winding Z2, voltage canceller winding x1, voltage canceller winding x2, voltage canceller winding Y1, voltage canceller winding Y2, voltage canceller winding Z1, and voltage canceller winding Z2.
2. The encapsulated coil transformer regulator of claim 1, wherein: further comprising said encapsulated coil transformer tuning winding R1 connected to encapsulated coil transformer tuning winding T2, said distribution transformer tuning winding R2 connected to encapsulated coil transformer tuning winding S1, said encapsulated coil transformer tuning winding S2 connected to encapsulated coil transformer tuning winding T1, said encapsulated coil transformer tuning winding R1 further connected to voltage canceller winding X1, said encapsulated coil transformer tuning winding S1 further connected to voltage canceller winding Y1, said encapsulated coil transformer tuning winding T1 further connected to voltage canceller winding Z1, said voltage canceller winding Z2 connected to voltage canceller winding X1, said voltage canceller winding X2 connected to voltage canceller winding Y1, said voltage canceller winding Y2 connected to voltage canceller winding Z1, said voltage canceller winding X1 connected to voltage canceller winding Z2, the voltage canceller winding x2 is connected to a voltage canceller winding y1, and the voltage canceller winding y2 is connected to a voltage canceller winding z 1.
3. The encapsulated coil transformer regulator of claim 2, wherein: the bidirectional thyristor KSA and KSC hybrid power supply further comprises a bidirectional thyristor KSA1, a bidirectional thyristor KSA2, a bidirectional thyristor KSB1, a bidirectional thyristor KSB2, a bidirectional thyristor KSC1 and a bidirectional thyristor KSC2, wherein the bidirectional thyristor KSA1 is connected between a voltage canceller winding x1 and a voltage canceller winding x2, the bidirectional thyristor KSB1 is connected between a voltage canceller winding y1 and a voltage canceller winding y2, the bidirectional thyristor KSC1 is connected between a voltage canceller winding z1 and a voltage canceller winding z2, one end of the bidirectional thyristor KSA2 is connected to the voltage canceller winding x2, one end of the bidirectional thyristor KSB2 is connected to the voltage canceller winding y2, and one end of the bidirectional thyristor KSC2 is connected to the voltage canceller winding z 2.
4. The encapsulated coil transformer regulator of claim 3, wherein: the protection circuit further comprises a control protection switch Q1, a control protection switch Q2 and a control protection switch Q3, one end of the control protection switch Q1 is connected to the other end of the bidirectional thyristor KSA2, one end of the control protection switch Q2 is connected to the other end of the bidirectional thyristor KSB2, and one end of the control protection switch Q3 is connected to the other end of the bidirectional thyristor KSC 2.
5. The encapsulated coil transformer regulator of claim 4, wherein: the three-phase self-coupling voltage reducer comprises a three-phase self-coupling voltage reducer winding U1, a three-phase self-coupling voltage reducer winding U2, a three-phase self-coupling voltage reducer winding V1, a three-phase self-coupling voltage reducer winding V2, a three-phase self-coupling voltage reducer winding W1 and a three-phase self-coupling voltage reducer winding W2, wherein the three-phase self-coupling voltage reducer winding U1, the three-phase self-coupling voltage reducer winding V1 and the three-phase self-coupling voltage reducer winding W1 are respectively and correspondingly connected to the other ends of a control protection switch Q1, a control protection switch Q2 and a control protection switch Q3, and the other ends of the three-phase self-coupling voltage reducer winding U2, the three-phase self-coupling voltage reducer winding V2 and the three-phase self-coupling voltage reducer winding W2 are respectively and correspondingly connected to an encapsulated coil transformer high-voltage winding U1, an encapsulated coil transformer high-voltage winding V1 and an encapsulated coil high-voltage winding W1.
6. The encapsulated coil transformer regulator of claim 3, wherein: the three-phase input voltage, the current, the three-phase output voltage, the current and each group of voltage combined windings are connected to the main control system, the operating system and the driving system are connected to the main control system, the operating system is a touch screen operation interface, and the main control system controls the voltage combined windings to work through the driving system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989213.1A CN113809753A (en) | 2021-08-26 | 2021-08-26 | Voltage stabilizer for encapsulated coil transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110989213.1A CN113809753A (en) | 2021-08-26 | 2021-08-26 | Voltage stabilizer for encapsulated coil transformer |
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| CN113809753A true CN113809753A (en) | 2021-12-17 |
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| CN202110989213.1A Withdrawn CN113809753A (en) | 2021-08-26 | 2021-08-26 | Voltage stabilizer for encapsulated coil transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117411010A (en) * | 2023-12-15 | 2024-01-16 | 广东欧姆龙电力工程有限公司 | Three-phase transformer control method |
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2021
- 2021-08-26 CN CN202110989213.1A patent/CN113809753A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117411010A (en) * | 2023-12-15 | 2024-01-16 | 广东欧姆龙电力工程有限公司 | Three-phase transformer control method |
| CN117411010B (en) * | 2023-12-15 | 2024-03-15 | 广东欧姆龙电力工程有限公司 | Three-phase transformer control method |
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Application publication date: 20211217 |