CN209200942U - A kind of simple charge power supply of three-phase and four-line combination transformer - Google Patents
A kind of simple charge power supply of three-phase and four-line combination transformer Download PDFInfo
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- CN209200942U CN209200942U CN201920153389.1U CN201920153389U CN209200942U CN 209200942 U CN209200942 U CN 209200942U CN 201920153389 U CN201920153389 U CN 201920153389U CN 209200942 U CN209200942 U CN 209200942U
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Abstract
The utility model discloses a kind of simple charge power supplies of three-phase and four-line combination transformer, solving the Normal practice for adding a 100V to take power supply on three-phase four-wire system combined instrument transformer product is by increasing multiple coils and load, cause small product size larger, heavier-weight problem.The utility model includes a side and secondary side, side includes A phase, B phase, C phase voltage input end, and secondary side includes secondary side input terminal a, b, c, and secondary side output end passes through ground connection after connection center line O, form secondary side 1a, 1o, 1b, 1o and 1c, 1o；Further include and the one-to-one end da, dn of secondary side；It further include charging terminal and load RL, any the two direct lead wire in secondary side input terminal a, b, c is for connecting charging terminal, and a combination lead is chosen in the remaining combination in any the two combination in a, b, c and is used to connect load RL, and charging terminal is equal with the load watt level of RL.
Description
Technical field
The utility model relates to three-phase and four-line combination transformer technical fields, and in particular to a kind of three-phase and four-line combination mutual inductance
The simple charge power supply of device.
Background technique
Three-phase four-wire system combined instrument transformer is called three element batch meters, is containing three groups of CT, PT, i.e. three voltages are mutual
Sensor and three current transformers change high current for low current, for changing high voltage for low-voltage in high-voltage fence
In generally play purpose to electrical energy measurement.
Currently, it is secondary for adding a 100V to take the Normal practice of power supply on three-phase four-wire system combined instrument transformer product
Side A phaseIncrease a coil windings between da, dn (0.1/3KV)In secondary side B phaseIncrease a coil windings between da, dnIn secondary side C phaseIncrease a coil windings between da, dnIt realizes, when normal use increases coil windings moreIt can
With, just meet for UPS charge 100V function, other two ghost coil windings is the injustice of three-phase voltage in order to prevent
Weighing apparatus is all connected with a load equal with UPS power between coil windings 2b, 2o and 2c, 2o to guarantee the balance of voltage.This
Since sample, the UPS charging of voltage 100V, increases multiple additional coils, while increasing multiple loads, causes to produce in order to obtain
The volume of product is larger, the generation of the drawbacks such as heavier-weight.Therefore, it is studied by a large number of experiments, we have proposed a kind of three-phases four
The simple charge power supply of line combination transformer can equally realize that client is directed to and be somebody's turn to do in the case where not having to additional increase coil
Product obtains the demand of 100V line voltage, uses for charge power supply UPS, and product weight is light, is easy to use.
Utility model content
The technical problem to be solved by the utility model is to for the technical problem in background above, in three-phase four-wire system
On combined instrument transformer product plus a 100V takes the Normal practice of power supply, increases multiple coils, while increasing multiple
The problems such as load, causes the volume of product larger, heavier-weight, the utility model provides a kind of three-phase to solve the above problems
Quad closes the simple charge power supply of mutual inductor, in the case where not having to additional increase coil, can equally realize that client is directed to
The product obtains the demand of 100V line voltage, uses for charge power supply UPS.
The utility model is achieved through the following technical solutions:
A kind of simple charge power supply of three-phase and four-line combination transformer, including a side and secondary side, it is described primary
The winding of side, the secondary side winding be respectively correspondingly wound in the primary and secondary side of iron core；The side packet
A phase, B phase, C phase voltage input end is included, output end corresponding with A phase, B phase, C phase voltage input end, which passes through, connect neutrality
It is grounded after line O；The secondary side includes corresponding respectively with the A phase, B phase, C phase voltage input end of a side
Secondary side input terminal a, b, c, and the output end of secondary side input terminal a, b, c pass through connection center line O after be grounded, and shape
At secondary side 1a, 1o, 1b, 1o and 1c, 1o；It further include the end da, dn, and respectively with secondary side 1a, 1o, 1b, 1o and 1c, 1o are one by one
It is formed and is corresponded to；It further include charging terminal and load RL, any the two direct lead wire in secondary side input terminal a, b, c is for connecting
The charging terminal is connect, and chooses a combination lead in the remaining combination in any the two combination in a, b, c and is used to connect
The load RL is met, and the watt level of the charging terminal and the load RL are equal.
Further, the charging terminal is used to charge for UPS or for connection bulb HL for connecting charging load
For illuminating；The load RL is used to guarantee the balance of three-phase voltage, prevents product resonance, prevents that product is caused to burn.
Further, any the two combining form in secondary side input terminal a, b, c includes tri- kinds of ab, ac, bc, for real
Now plus the mode of charge power supply UPS is more, has the lead connection type of charging terminal and load RL following several:
(1) end the ab direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal, and in ac or
The end bc lead is for connecting the load RL；
(2) end the ac direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal, and in ab or
The end bc lead is for connecting the load RL；
(3) end the bc direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal, and in ab or
The end ac lead is for connecting the load RL.
Further, the voltage rating of primary sideSecondary side 1a, 1o, the voltage rating of 1b, 1o and 1c, 1o
It isThe voltage rating at the end da, dn is 0.1/3KV；And A phase, B phase, C phase voltage input end inputs 10KV's
Voltage.
Further, secondary side class of accuracy is 0.5 grade, and the end da, dn class of accuracy is 6P grades.
The utility model has the following advantages and benefits:
1, any the two direct lead wire of the utility model in secondary side input terminal a, b, c is for connecting the charging end
Son, for charging for UPS or being used to illuminate for connection bulb HL；And the residue in any the two combination in a, b, c
A combination lead is chosen in combination for connecting the load RL, and the watt level of the charging terminal and the load RL
Equal, load RL ensure that the balance of three-phase voltage, prevent product resonance, prevent that product is caused to burn；
2, the utility model structure is simple, easy for operation, can be same in the case where not having to additional increase coil
Realize that client obtains the demand of 100V line voltage for three-phase four-wire system combined instrument transformer product, for being used for UPS charging,
And product weight is light, considerably reduces the cost of existing Normal practice, save the cost, and be easy to use, and it is economic and practical, it is suitble to
It is promoted the use of a large area in power domain.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the elementary diagram of the three-phase and four-line combination transformer of the utility model.
Fig. 2 is the charging terminal connection bulb HL working principle diagram of the utility model.
Fig. 3 is that the charging terminal of the utility model connects charging load UPS working principle diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of simple charge power supply of three-phase and four-line combination transformer, including a side and secondary
Side, the winding of a side, the winding of the secondary side are respectively correspondingly wound in the primary and secondary side of iron core；Institute
Stating a side includes A phase, B phase, C phase voltage input end, and output end corresponding with A phase, B phase, C phase voltage input end is equal
By being grounded after connection neutral conductor O；The secondary side includes the A phase, B phase, C phase voltage input end with a side
One-to-one secondary side input terminal a, b, c respectively, and the output end of secondary side input terminal a, b, c pass through connection center line O
It is grounded later, and forms secondary side 1a, 1o, 1b, 1o and 1c, 1o；Further include the end da, dn, and respectively with secondary side 1a, 1o, 1b,
1o and 1c, 1o form correspondence one by one；It further include charging terminal and load RL, any the two in secondary side input terminal a, b, c
Direct lead wire chooses one for connecting the charging terminal, and in the remaining combination in any the two combination in a, b, c
Combination lead is for connecting the load RL, and the watt level of the charging terminal and the load RL are equal.
Wherein, in the present embodiment, the charging terminal is used to illuminate for connection bulb HL, and the light bulb HL and institute
The watt level for stating load RL is equal, and the present embodiment is for simulating the bright dark situation of light bulb HL；The load RL is for guaranteeing three-phase
The balance of voltage prevents product resonance, prevents that product is caused to burn.
Any the two combining form in secondary side input terminal a, b, c includes tri- kinds of ab, ac, bc, for realizing charging is added
The mode of power supply UPS is more, has the lead connection type of charging terminal and load RL following several:
(1) end the ab direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal, and in ac or
The end bc lead is for connecting the load RL；
(2) end the ac direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal, and in ab or
The end bc lead is for connecting the load RL；
(3) end the bc direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal, and in ab or
The end ac lead is for connecting the load RL.
In the present embodiment, using the first (1) light bulb HL and load RL connection type, and it is straight at the end 1a and 1b
It connects lead and comes out connection bulb HL, come out in 1b and the end 1c (or 1a and the end 1c) lead and connect load RL.
In addition, main PT:The voltage rating of primary sideSecondary side 1a,
1o, 1b, 1o and 1c, 1o voltage rating beThe voltage rating at the end da, dn is 0.1/3KV；And A phase, B phase, C
Phase voltage input terminal inputs the voltage of 10KV.
Secondary side class of accuracy is 0.5 grade, and the end da, dn class of accuracy is 6P grades.
In the prior art, a 100V is added to take the Normal practice of power supply on three-phase four-wire system combined instrument transformer product
It is secondary side A phaseIncrease a coil windings between da, dn (0.1/3KV) In secondary side B phaseIncrease a coil windings between da, dn In secondary side C phaseIncrease a coil windings between da, dnIt realizes, when normal use increases coil windings moreIt can
With, just meet for UPS charge 100V function, other two ghost coil windings is the injustice of three-phase voltage in order to prevent
Weighing apparatus is all connected with a load equal with UPS power between coil windings 2b, 2o and 2c, 2o to guarantee the balance of voltage.This
Since sample, the UPS charging of voltage 100V, increases multiple additional coils, while increasing multiple loads, causes to produce in order to obtain
The volume of product is larger, the drawbacks such as heavier-weight.
The working principle of the utility model is: the drawbacks of being directed to the prior art is analyzed and is studied by a large number of experiments, two
Any the two direct lead wire in secondary side input terminal a, b, c is for connecting the charging terminal (charging load UPS or light bulb
HL), a combination lead is chosen in the remaining combination in any the two combination and in a, b, c to be used to connect the load
RL, and the watt level of the charging terminal (charging load UPS or light bulb HL) and the load RL are equal；In the present embodiment
In 1, charging terminal is used to illuminate for connection bulb HL, and light bulb HL is equal with the load watt level of RL, 1 mould of the present embodiment
The bright dark situation of quasi- light bulb HL, in entire test, firstly, the three-phase four-wire system by increasing apparatus to the utility model combines
Three voltage transformer A phases, B phase and the C phase voltage input terminal of formula mutual inductor product input the voltage of 10KV, secondary side 1a,
1o, 1b, 1o and 1c, 1o are suppliedPhase voltage, then, from the secondary side 1a of two of them voltage transformer,
1o takes any two to come out between 1b, 1o and 1c, 1o, for example takes 1a, 1o, 1b, 1o, measures secondary side 1a, 1o with voltmeter,
1b, 1o virtual voltage are 58.6V, with the specified level pressure of secondary sideIt compares, belongs in nominal error allowed band；
Finally come out connection bulb HL in 1a and the end 1b direct lead wire, and light bulb HL is bright and luminosity is stablized, 1b and the end 1c (or 1a with
The end 1c) lead comes out and connects load RL, while measuring the virtual voltage of the two sides light bulb HL with voltmeter is 98.4V, with specified electricity
Pressure is compared for 100V, belongs in nominal error allowed band, meets the prescribed requirement that 100V takes power supply；By above-mentioned a large amount of examinations
Verifying, compared with the prior art, can equally realize that client obtains for the product in the case where not having to additional increase coil
The demand for obtaining 100V line voltage, for charge power supply UPS use, (connection bulb HL is used to illuminate or connect charging load and be used to
For UPS charging), and product weight is light, is easy to use, a large amount of economic costs have been saved under similarity condition, have been suitble in power domain
It promotes the use of a large area.
Embodiment 2
As shown in Figure 1, Figure 3, the present embodiment the difference from embodiment 1 is that, in the present embodiment, the charging terminal is used
It is used to charge for UPS in connection charging load, and the watt level of the charging terminal UPS and the load RL are equal；It is described
Load RL is used to guarantee the balance of three-phase voltage, prevents product resonance, prevents that product is caused to burn；
Also, using the connection type of the charging terminal UPS of the first (1) and load RL, in 1a and the end 1b direct lead wire
Charging terminal UPS is connected out, is come out in 1b and the end 1c (or 1a and the end 1c) lead and is connected load RL.
Embodiment 3
As shown in Figure 1 to Figure 3, the present embodiment and the difference of embodiment 1, embodiment 2 are, charging terminal (charging load
UPS or light bulb HL) and load RL lead connection type, using second (2) of charging terminal UPS and load RL connection
Mode, the end the ac direct lead wire in secondary side input terminal a, b, c draw for connecting the charging terminal at the end ab bc
Line is for connecting the load RL；
It can equally be well implemented as charging load UPS to charge, or simulation light bulb HL bright, and test charging terminal with voltmeter
The virtual voltage at the both ends (charging load UPS or light bulb HL) is 98.6V, compares, belongs to for 100V with desired voltage rating
In nominal error allowed band, meet the prescribed requirement that 100V takes power supply.
Embodiment 4
As shown in Figure 1 to Figure 3, the present embodiment and the difference of embodiment 1, embodiment 2 are, charging terminal (charging load
UPS or light bulb HL) and load RL lead connection type, using second (2) of charging terminal UPS and load RL connection
Mode, the end the bc direct lead wire in secondary side input terminal a, b, c draw for connecting the charging terminal at the end ab ac
Line is for connecting the load RL；
It can equally be well implemented as charging load UPS to charge, or simulation light bulb HL bright, and test charging terminal with voltmeter
The virtual voltage at the both ends (charging load UPS or light bulb HL) is 98.6V, compares, belongs to for 100V with desired voltage rating
In nominal error allowed band, meet the prescribed requirement that 100V takes power supply.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of simple charge power supply of three-phase and four-line combination transformer, including a side and secondary side, the primary side
The winding at end, the secondary side winding be respectively correspondingly wound in the primary and secondary side of iron core；Side includes A
Phase, B phase, C phase voltage input terminal, output end corresponding with A phase, B phase, C phase voltage input end, which passes through, connect neutral conductor O
It is grounded later；The secondary side includes one-to-one with the A phase, B phase, C phase voltage input end of side difference
Secondary side input terminal a, b, c, and the output end of secondary side input terminal a, b, c pass through ground connection after connection center line O, and are formed
Secondary side 1a, 1o, 1b, 1o and 1c, 1o；Further include the end da, dn, and respectively with secondary side 1a, 1o, 1b, 1o and 1c, 1o shape one by one
At correspondence；It is characterized by also including charging terminals and load RL, and any the two in secondary side input terminal a, b, c is directly
Lead is chosen one in the remaining combination in any the two combination in a, b, c and is combined for connecting the charging terminal
Lead is for connecting the load RL, and the watt level of the charging terminal and the load RL are equal.
2. a kind of simple charge power supply of three-phase and four-line combination transformer according to claim 1, it is characterised in that: described
Charging terminal is used to charge for UPS or illuminate for connection bulb HL for connecting charging load；The load RL is used
In the balance for guaranteeing three-phase voltage.
3. a kind of simple charge power supply of three-phase and four-line combination transformer according to claim 1 or 2, feature exist
In: any the two combining form in secondary side input terminal a, b, c includes tri- kinds of ab, ac, bc, in secondary side input terminal a, b, c
In the end ab direct lead wire for connecting the charging terminal, and in the end ac bc lead for connecting the load RL.
4. a kind of simple charge power supply of three-phase and four-line combination transformer according to claim 1 or 2, feature exist
In: any the two combining form in secondary side input terminal a, b, c includes tri- kinds of ab, ac, bc, in secondary side input terminal a, b, c
In the end ac direct lead wire for connecting the charging terminal, and in the end ab bc lead for connecting the load RL.
5. a kind of simple charge power supply of three-phase and four-line combination transformer according to claim 1 or 2, feature exist
In: any the two combining form in secondary side input terminal a, b, c includes tri- kinds of ab, ac, bc, in secondary side input terminal a, b, c
In the end bc direct lead wire for connecting the charging terminal, and in the end ab ac lead for connecting the load RL.
6. a kind of simple charge power supply of three-phase and four-line combination transformer according to claim 1, it is characterised in that: primary
The voltage rating of sideSecondary side 1a, 1o, 1b, 1o and 1c, 1o voltage rating beThe end da, dn
Voltage rating be 0.1/3KV；And A phase, B phase, C phase voltage input end inputs the voltage of 10KV.
7. a kind of simple charge power supply of three-phase and four-line combination transformer according to claim 6, it is characterised in that: secondary
Side class of accuracy is 0.5 grade, and the end da, dn class of accuracy is 6P grades.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600050A (en) * | 2019-01-29 | 2019-04-09 | 重庆睿伊互感器研究院有限公司 | A kind of simple charge power supply of three-phase and four-line combination transformer |
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2019
- 2019-01-29 CN CN201920153389.1U patent/CN209200942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600050A (en) * | 2019-01-29 | 2019-04-09 | 重庆睿伊互感器研究院有限公司 | A kind of simple charge power supply of three-phase and four-line combination transformer |
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