CN102543399B - Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply - Google Patents
Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply Download PDFInfo
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- CN102543399B CN102543399B CN201110443710.8A CN201110443710A CN102543399B CN 102543399 B CN102543399 B CN 102543399B CN 201110443710 A CN201110443710 A CN 201110443710A CN 102543399 B CN102543399 B CN 102543399B
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Abstract
The invention provides a phase-shifting voltage-regulating method of a three-phase dry-type rectifier transformer of a short-wave transmitter power supply, belonging to the transformer technology. A tail end of a phase-shifting winding is connected with a starting end of a main winding, and the voltages of the phase-shifting winding and the main winding are regulated at the same time; a primary coil is connected through an extended triangle; a lead wiring position is exchanged through a connection tube, such that phase-shifting with plus or minus 15 degrees of the primary coil is realized and voltage regulation of plus or minus 5% and plus or minus 2*2.5% is realized; 24 independent windings are connected and operated in parallel to form a secondary coil, the capacity of each winding is 1/24 of the capacity of the primary coil, and the output voltages of the 24 windings are equal; and a main insulation distance is determined in accordance with 48 times higher than the voltage of each secondary coil. The primary winding still has high voltage regulation precision after being subjected to phase-shifting; 24 equal capacities and same voltages desired by a user can be realized on the secondary winding on one same product; effective material consumed is less, loss in operation is low, and the investment can be saved. The method has a simple structure, good manufacturability, low cost and is safe and practical, and the space can be saved.
Description
Technical field
The invention belongs to transformer technology, be specifically related to a kind of phase-shift voltage regulating method of 3-phase dry type rectifier transformer.
Background technology
Short-wave transmitter is for each transmitting station of the subordinate of State Administration of Radio Film and Television.Short-wave transmitter has 48 grades of switches.When design, two rectifier transformer secondary cleavages are become to 24 windings, two 24 winding parallels become 48 windings to provide same electrical to be pressed on 48 grades of switches of short-wave transmitter.The leakage inductance of the secondary numerous grades of windings of two rectifier transformers can not equate, this is unequal by the AC-input voltage that causes 48 cover low-voltage rectifiers, thereby causes the output voltage of 48 grades of switches uneven.Because output voltage imbalance becomes a part for short-wave transmitter noise the most at last by parasitic modulation, and the principal part of short-wave transmitter noise often.For suppressing this noise, by two elementary three phase mains of rectifier transformer with respect to dispatch from foreign news agency voltage phase shift+15o or-15o, can change the waveform of modulating stage output voltage, also change amplitude, phase place and the dominant frequency of switching frequency frequency division noise, thereby made this noise be reduced to minimum.48 groups of voltages are series operations after low-voltage rectifier output, therefore the whole secondary winding of this transformer are to examine by 48 groups of voltages magnitude of voltage of overlapped in series after rectification to industrial frequency withstand voltage value elementary and ground, the magnitude of voltage of stack is higher than 48 times of every group of voltage, because examination voltage is far away higher than the magnitude of voltage of every group, so main insulating structure of how to confirm transformer, thereby how by calculating the poor noise that drops to minimum curb transmitter of the leakage inductance of secondary numerous windings, and armature winding pressure regulation precision in the situation that of phase shift can guarantee accurately, it is the key technology of this transformer of design.The phase-shift voltage regulating mode of existing short-wave transmitter power rectifier transformer, every phase terminal tap is more, makes transformer simple and reliable not, safe and practical.
Summary of the invention
The object of the invention is to: a kind of short-wave transmitter power supply 3-phase dry type Shifting Phase of Rectifier Transformer pressure regulation method is provided, makes transformer more simple and reliable, safe and practical.
The present invention realizes by following scheme:
Tail head and the starting of main winding of phase shift winding link together, and by phase shift winding and main winding pressure regulation simultaneously, guarantee the pressure regulation precision of primary coil, and reduce every phase terminal number of taps;
Primary coil adopts the extend-triangle mode of connection, by the go between position of wiring of tube connector, change, thereby realize the phase shift of primary coil+15 ° or-15 °, and ± 5% and ± 2x2.5% pressure regulation;
Secondary coil is 24 independently windings, 24 winding parallel operations, and the capacity of each winding is that the output voltage of 1/24,24 winding of primary coil capacity equates;
The main insulating structure of transformer is by determining higher than 48 times of secondary every group of voltage.
The present invention has the following advantages:
The armature winding of transformer pressure regulation precision after phase shift is still very high, can on a product secondary, according to user, need to realize 24 equal capacity and same voltage, effective material that transformer consumes is few, and operating loss is also little, can save capital construction investment.Transformer device structure of the present invention is simple, good manufacturability, cost are low, safe and practical, save space.Can meet each transmitting station and transmitter be reduced to the requirement of noise.
Accompanying drawing explanation
Fig. 1 is move to left+armature winding key wiring diagram 15 ° time of embodiment.
Fig. 2 is the armature winding key wiring diagram that embodiment moves to right-15 ° time.
Fig. 3 be embodiment armature winding structural representation (top is main looking, below be overlook 1/2).
Fig. 4 be embodiment secondary winding structural representation (top is main looking, below be overlook 1/2).
Fig. 5 is in Fig. 4
the enlarged drawing at position.
Fig. 6 is in Fig. 4
the enlarged drawing at position.
Fig. 7 is in Fig. 4
the enlarged drawing at position.
Embodiment
Below in conjunction with accompanying drawing and table 1 pair transformer of the present invention, be elaborated.
Embodiment: see Fig. 1～7 and table 1.Table 1 is the armature winding pressure regulation tap relation of embodiment.
Embodiment is ± pressure regulation of 2X2.5%.Primary coil adopts extend-triangle wiring to realize phase shift+15 ° or-15 °.Phase shift winding and the main winding of primary coil all adopt end pressure regulation.The shunting tap of phase shift winding is A phase: A6, A7, A8, A9, A10; B phase: B6, B7, B8, B9, B10; C phase: C6, C7, C8, C9, C10.The shunting tap of main winding is A phase: A1, A2, A3, A4, A5, B phase: B1, B2, B3, B4, B5, C phase: C1, C2, C3, C4, C5.Phase shift winding is received start A1, phase shift winding of an A10 and main winding and is received a B10 and main winding B1, a phase shift winding receipts C10 and the main winding C1 that starts that starts and just link together when coiling, totally 11 of every like this phase terminal taps, than conventional, with few 5 of the every phase terminal tap of middle part voltage regulating mode, lead-in wire is connected more simple.Each terminal of every phase is drawn from top, be fixed on the lead-in wire support plate on upper clamping piece, the pressure regulation of the realize ± 2X2.5% of conversion by two short connecting tubes and a long connecting tube diverse location and+phase shift of 15 ° or-15 °.
Fig. 4 is the secondary winding structural representation of the present embodiment transformer, and primary coil is designed to interior loop, and secondary coil is designed to exterior loop.24 group Winding Designs of secondary coil become a continuous winding, and each cake of continuous winding is one group of winding.Starting as A phase: a1-a24 of every group of winding of three-phase; B phase: b1-b24; C phase: c1-c24, is separately fixed on the lead-in wire support plate of every phase, and the receipts head of every group of winding of three-phase is A phase: x1-x24; B has two to receive head: y1-y24, y1 '-y24 ' mutually; C phase: z1-z24.By two of B phase, receive head and link together with the receipts head of A, C phase, form every group of star-like connection and draw.
Claims (1)
1. the phase-shift voltage regulating method of a short-wave transmitter power supply 3-phase dry type rectifier transformer, it is characterized in that: every phase coil is comprised of primary coil and secondary coil, every phase primary coil is comprised of phase shift winding and main winding, tail head and the starting of main winding of phase shift winding link together, by phase shift winding and main winding pressure regulation simultaneously, guarantee the pressure regulation precision of primary coil, and reduce every phase terminal number of taps; Primary coil adopts the extend-triangle mode of connection, by the go between position of wiring of tube connector, change, thereby realize the phase shift of primary coil+15 ° or-15 °, and ± 5% or ± 2x2.5% pressure regulation; Secondary coil is 24 independently windings, the operation of 24 winding parallels, and the capacity of each winding is that the output voltage of 1/24,24 winding of primary coil capacity equates and equals secondary voltage; The main insulating structure of transformer is by determining higher than 48 times of secondary voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110443710.8A CN102543399B (en) | 2011-12-27 | 2011-12-27 | Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110443710.8A CN102543399B (en) | 2011-12-27 | 2011-12-27 | Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply |
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| Publication Number | Publication Date |
|---|---|
| CN102543399A CN102543399A (en) | 2012-07-04 |
| CN102543399B true CN102543399B (en) | 2014-03-26 |
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| CN201110443710.8A Expired - Fee Related CN102543399B (en) | 2011-12-27 | 2011-12-27 | Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105788830A (en) * | 2016-05-19 | 2016-07-20 | 东莞市光华实业有限公司 | 200kVA36 pulse phase-shifting transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2518199Y (en) * | 2001-12-31 | 2002-10-23 | 许继集团有限公司 | Epoxy resin filled 24-pulse drying tracting commutating transformer |
| CN201307493Y (en) * | 2008-11-04 | 2009-09-09 | 西安天虹电器有限公司 | Microwave transmission rectifier transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112121A (en) * | 1983-11-22 | 1985-06-18 | Toshiba Corp | Phase adjusting device |
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2011
- 2011-12-27 CN CN201110443710.8A patent/CN102543399B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2518199Y (en) * | 2001-12-31 | 2002-10-23 | 许继集团有限公司 | Epoxy resin filled 24-pulse drying tracting commutating transformer |
| CN201307493Y (en) * | 2008-11-04 | 2009-09-09 | 西安天虹电器有限公司 | Microwave transmission rectifier transformer |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-112121A 1985.06.18 |
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| CN102543399A (en) | 2012-07-04 |
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