CN215452675U - Modular outlet box of medium-high voltage generator - Google Patents
Modular outlet box of medium-high voltage generator Download PDFInfo
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- CN215452675U CN215452675U CN202121395379.2U CN202121395379U CN215452675U CN 215452675 U CN215452675 U CN 215452675U CN 202121395379 U CN202121395379 U CN 202121395379U CN 215452675 U CN215452675 U CN 215452675U
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Abstract
The utility model discloses a modularized wire outlet box of a medium-high voltage generator, which comprises a box body, a bottom plate, a current transformer module, a wiring column module, a drooping current transformer and a plurality of wire supports. The bottom plate is rectangular and is arranged on four supporting legs on the top surface of the machine body of the generator through bolts; the current transformer modules are in three configurations and are installed on current transformer installation holes in the bottom plate through bolts; the transformer modules are in two configurations and are arranged on a group of current transformer mounting holes on the bottom plate through bolts; the terminal post module is arranged on the other group of current transformer mounting holes on the bottom plate; the drooping current transformer is arranged on the width central line of the bottom plate and is close to the current transformer module; and the plurality of wire supports are arranged on the bottom plate and are positioned on two sides of the droop current transformer and between the droop current transformer and the wire inlet. The utility model can be configured with different current transformers and can realize the interchange of left and right outgoing directions.
Description
Technical Field
The utility model relates to a brushless synchronous generator for an internal combustion engine driven generator set, in particular to a modular outlet box of a salient pole type medium-high voltage generator.
Background
At present, a high-voltage generator (voltage is usually 50Hz and 10500V) is mostly used in a generator set driven by a high-power internal combustion engine, and compared with a low-voltage generator (voltage is usually 50Hz and 400V), the high-voltage generator has the advantages of smaller current and smaller loss caused by smaller current. Meanwhile, the problem caused by high voltage is that the voltage cannot be directly measured, a controller of the generator cannot directly collect voltage signals, and the voltage can be measured only by using a transformer for voltage reduction. Therefore, a transformer is installed inside the medium-high voltage generator. With the simplification of the unit and the control cabinet in the unit production plant, generally, the voltage detection of the controller and other devices of the whole generator set can be directly collected by the transformer on the generator, and the transformer is not set up separately. The transformers of the generator are then subject to various requirements, which often require replacement. The transformer is divided into two types, one type is provided with a three-phase transformer and is used for detecting the phase current of the generator; the second is to install two single-phase transformers for detecting the line current of the generator. The generator can be provided with two types of transformers in the same outlet box in response to different requirements.
Because the voltage of the medium-high voltage motor is high, the safety requirements of general customers on the motor are higher in consideration of the risks caused by the high voltage. Differential and measurement current transformers are typically installed for real-time measurement and protection. The requirements of various clients are different, parameters such as transformation ratio, precision and capacity of the current transformer are changed greatly, and the appearance and the installation size are changed greatly. For a generator, a plurality of current transformers required by customers can be installed in an outlet box. The current transformer has two general forms, namely an access type and a through type, wherein the three forms are combined and arranged on a leading-out wire of the generator, and then a copper bar is led out to be used as a zero line. Therefore, the outlet box needs to have greater flexibility and can be provided with two different types of current transformers.
When the generator is in the whole set of the generator, for different situations, the original outlet position is shielded by installing a control cabinet or other devices, or the preset cable connection position of the generator set is different from the outlet direction of the generator, and a customer can require to change the outlet direction of the generator, usually to change the opposite direction and connect the line at the other side of the generator. Therefore, the internal elements of the outlet box need to be exchanged left and right, and the outlet mode of both sides can be realized.
In order to meet the actual requirements of customers, a new outlet box structure needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a modular outlet box of a medium-high voltage generator, which can be configured with different current transformers and transformers on the premise of unchanging the shape and the framework of the outlet box, can realize the exchange of left and right outlet directions and meet the diversified requirements of customers.
The purpose of the utility model is realized as follows: a modularized wire outlet box of a medium-high voltage generator comprises a box body, a bottom plate, a current transformer module, a terminal post module, a drooping current transformer and a plurality of wire brackets, wherein,
the bottom plate is rectangular and is arranged on four supporting legs on the top surface of the machine body of the generator through bolts, a group of wire inlets are formed in the rear part of the width center line of the bottom plate, a group of current transformer mounting holes are formed in the front part of the bottom plate, and a group of transformer mounting holes are symmetrically formed in the left side and the right side of the width center line of the bottom plate;
the current transformer module comprises a first supporting plate, three access type current transformers and a first copper bar; the first supporting plate is mounted on a current transformer mounting hole in the bottom plate through a bolt; the three access type current transformers are fixed on the first supporting plate in parallel; three pairs of mounting holes are formed in the first copper bar corresponding to the three access type current transformers, and a zero line wiring hole is formed in the tail end of one end of the first copper bar; the first copper bar is arranged on the front parts of the top surfaces of the three access type current transformers through three pairs of mounting holes; the outgoing lines of the three generators enter the junction box through the line inlets and are connected with the wiring boards at the rear parts of the top surfaces of the three access type current transformers in a one-to-one correspondence mode; alternatively, the first and second electrodes may be,
the current transformer module comprises a second supporting plate, three through current transformers, two insulating columns and a second copper bar; the second supporting plate is installed on a current transformer installation hole in the bottom plate through a bolt; the three straight-through current transformers are fixed at the rear part of the second supporting plate in parallel; the two insulating columns are arranged at the front part of the second supporting plate at a certain distance; two mounting holes are formed in the second copper bar corresponding to the two insulating columns, three lead wiring holes are formed in the middles of the two mounting holes, a zero line wiring hole is formed in the tail end of one end of the second copper bar, and the second copper bar is mounted on the two insulating columns through the two mounting holes; leading-out wires of the three generators enter the junction box through the wire inlet, penetrate through central through holes of the three through current transformers in a one-to-one correspondence manner and then are connected with three leading-out wire connection holes on the second copper bar in a one-to-one correspondence manner; alternatively, the first and second electrodes may be,
the current transformer module comprises a third supporting plate, two insulating columns and a third copper bar; the third supporting plate is mounted on a current transformer mounting hole in the bottom plate through a bolt; the two insulating columns are arranged in the middle of the third supporting plate at a certain distance; two mounting holes are formed in the third copper bar corresponding to the two insulating columns, a lead wiring hole is formed in the middle of each mounting hole, two zero line wiring holes are formed in the tail end of one end of each mounting hole, and the third copper bar is mounted on the two insulating columns through the two mounting holes; the three generator outgoing lines enter the junction box through the line inlet and are connected with the two mounting holes and the lead wiring hole in a one-to-one correspondence manner;
the transformer module comprises a transformer supporting plate and a three-phase transformer; the transformer supporting plate is installed on a group of transformer installation holes in the bottom plate through bolts, and the three-phase transformer is installed on the transformer supporting plate through bolts; or the transformer module comprises two single-phase transformers which are directly installed on a group of current transformer installation holes on the bottom plate through bolts;
the wiring terminal module comprises a wiring terminal supporting plate, three insulating columns and three wiring copper bars; the wiring terminal supporting plate is arranged on the other group of current transformer mounting holes on the bottom plate through bolts; the three insulating columns are arranged on the wiring terminal supporting plate at intervals; the three wiring copper bars are respectively arranged on the top surfaces of the three insulating columns in a one-to-one correspondence manner through a bolt;
the drooping current transformer is arranged on the width central line of the bottom plate and is close to the current transformer module;
and the plurality of wire supports are arranged on the bottom plate and are positioned on two sides of the droop current transformer and between the droop current transformer and the wire inlet.
The above-mentioned well high voltage generator's modularization outlet box, wherein, the quantity of wire support has five, and wherein two wire supports are installed one-to-one the both sides of flagging current transformer, and three wire supports are installed side by side flagging current transformer with between the inlet wire.
The modularized outlet box of the medium-high voltage generator comprises a box body, a power supply and a control unit, wherein the box body comprises a front end plate, a rear end plate, a left side plate, a right side plate and a top plate; and the rear end plate is also provided with an auxiliary junction box.
The modularized outlet box of the medium-high voltage generator is characterized in that the top surfaces of four supporting legs on the body of the generator and the bottom plate are respectively arranged on the shock absorption pad.
The modularized outlet box of the medium-high voltage generator has the following characteristics:
1. each component in the outlet box is loaded by different supporting plates and then is arranged on a uniform bottom plate;
2. a three-phase transformer or two single-phase transformers can be installed by replacing the supporting plate;
3. an access type current transformer or a straight-through type current transformer can be installed by replacing the supporting plate;
4. the installation positions are exchanged through the transformer module and the wiring terminal module, and the outgoing direction can be changed.
Drawings
Fig. 1 is an isometric view of a modular outlet box of a medium to high voltage generator of the present invention;
FIG. 2 is an isometric view of a modular outlet box of the medium to high voltage generator of the present invention (with the box removed);
FIG. 3 is an isometric view of a modular outlet box of the medium to high voltage generator of the present invention (with the box removed);
FIG. 4 is an internal layout view of a modular outlet box of the medium to high voltage generator of the present invention;
FIG. 5a is a schematic diagram of a first type of current transformer module in an outlet box according to the present invention;
FIG. 5b is a schematic diagram of a second current transformer module in the outlet box of the present invention;
FIG. 5c is a schematic diagram of a third current transformer module in the outlet box of the present invention;
FIG. 6a is a schematic diagram of a first transformer module in an outlet box according to the present invention;
FIG. 6b is a schematic diagram of a second transformer module in the outlet box of the present invention;
FIG. 7 is a schematic structural view of a terminal block module within the outlet box of the present invention;
fig. 8 is a schematic structural diagram of the outlet box of the present invention after the post module and the transformer module are interchanged.
Detailed Description
The utility model will be further explained with reference to the drawings.
Referring to fig. 1 to 8, the modular outlet box of the medium-high voltage generator according to the present invention includes a box body 2, a bottom plate 20, a current transformer module 30, a transformer module 40, a terminal module 50, a droop current transformer 60, and five wire holders 70.
The box body 2 comprises a front end plate, a rear end plate, a left side plate, a right side plate and a top plate; the rear end plate is provided with an auxiliary junction box 21.
The bottom plate 20 is rectangular and is arranged on four supporting legs 10 on the top surface of the body 1 of the generator through bolts, and all components in the outlet box are arranged on the bottom plate 20; the top surfaces of the four supporting legs 10 and the bottom surface of the bottom plate 20 are respectively provided with a shock absorption pad so far, so that components in the whole outlet box have a good shock absorption function relative to the machine body 1 of the generator, and the influence of the running vibration of the generator on the outlet box is reduced; a set of wire inlets 21 is formed at the rear portion of the width center line of the bottom plate 20, a set of current transformer mounting holes is formed at the front portion of the bottom plate 20, and a set of transformer mounting holes is symmetrically formed at each of the left and right sides of the width center line of the bottom plate 20.
The current transformer module 30 has three configurations, namely, an access transformer is installed, a feedthrough transformer is installed, and a current transformer is not installed; configuring according to the requirements of a client;
the first current transformer module 30 comprises a first supporting plate 31a, three access current transformers 32a and a first copper bar 33 a; the first supporting plate 31a is installed on a current transformer installation hole on the bottom plate 20 through a bolt; three access type current transformers 32a are fixed on the first supporting plate 31a side by side; three pairs of mounting holes are formed in the first copper bar 33a corresponding to the three access type current transformers 32a, and a zero line wiring hole is formed in the tail end of one end; the first copper bar 33a is arranged on the front parts of the top surfaces of the three access type current transformers 32a through three pairs of mounting holes; the three generator outgoing lines 10 enter the junction box through the line inlet 21 and are connected with the wiring board at the rear part of the top surfaces of the three access type current transformers 32a in a one-to-one correspondence mode;
the second current transformer module 30 comprises a second supporting plate 31b, three through current transformers 32b, two insulating columns 34 and a second copper bar 33 b; the second supporting plate 31b is installed on the current transformer installation hole on the bottom plate 20 through a bolt; three straight-through current transformers 32b are fixed at the rear part of the second supporting plate 31b side by side; two insulation posts 34 are installed at the front of the second supporting plate 31b with a certain distance; two mounting holes are formed in the second copper bar 33b corresponding to the two insulating columns 34, three lead wiring holes are formed in the middle of the two mounting holes, a zero line wiring hole is formed in the tail end of one end of the second copper bar 33b, and the second copper bar 33b is mounted on the two insulating columns 34 through the two mounting holes; the three generator outgoing lines 10 enter the junction box through the line inlet 21, penetrate through the central through holes of the three straight-through current transformers 32b in a one-to-one correspondence manner and then are connected with the three lead wiring holes on the second copper bar 33b in a one-to-one correspondence manner;
the third current transformer module 30 comprises a third supporting plate 31c, two insulating columns 34 and a third copper bar 33 c; the third supporting plate 31c is mounted on the current transformer mounting hole on the bottom plate 20 through a bolt; two insulating columns 34 are arranged in the middle of the third supporting plate 31c at intervals; two mounting holes are formed in the third copper bar 33c corresponding to the two insulating columns 34, a lead wiring hole is formed in the middle of the two mounting holes, two zero line wiring holes are formed in the tail end of one end of the third copper bar, and the third copper bar 33c is mounted on the two insulating columns 34 through the two mounting holes; the three generator lead wires 10 enter the junction box through the wire inlet 21 and are connected with the two mounting holes and one lead wire junction hole in a one-to-one correspondence mode.
In the current transformer 30 with the three configurations, the mounting holes formed in the first supporting plate 31a, the second supporting plate 31b and the third supporting plate 31c correspond to the mounting holes of the current transformer formed in the bottom plate 20, and can be replaced with each other, and the mounting type of the current transformer is changed by modifying the supporting plates.
The transformer module 40 has two configurations, that is, two single-phase transformers or one three-phase transformer are provided as the voltage detection;
the first transformer module 40 includes a transformer tray 41 and a three-phase transformer 42; the transformer supporting plate 41 is installed on a group of transformer installation holes on the bottom plate 20 through bolts, and the three-phase transformer 42 is installed on the transformer supporting plate 41 through bolts;
the second transformer module 40 includes two single-phase transformers 43, and the two single-phase transformers 43 do not need a supporting plate and can be directly mounted on a set of current transformer mounting holes on the bottom plate 20 through bolts.
The wiring column module 50 comprises a wiring column supporting plate 51, three insulating columns 52 and three wiring copper bars 53; the terminal supporting plate 51 is installed on another group of current transformer installation holes on the bottom plate 20 through bolts; three insulating columns 52 are mounted on the terminal support plate 51 at intervals; the three wiring copper bars 53 are respectively installed on the top surfaces of the three insulating columns 52 in a one-to-one correspondence manner through a bolt; two wiring holes are formed in each wiring copper bar 53, a cable inside the generator can be connected to one hole of the wiring copper bar 53, and the other hole is reserved for wiring of a customer.
The installation positions of the transformer module 40 and the terminal module 50 can be interchanged, the direction of the first copper bar 33a, the second copper bar 33b or the third copper bar 33c on the current transformer module 30 is rotated by 180 degrees, different outgoing directions can be realized, and the position of a zero line wiring hole is placed on the left side or the right side, so that the requirement of changing outgoing lines is realized (see fig. 8).
The drooping current transformer 60 is mounted on the width center line of the base plate 20 near the current transformer module 30.
Two of the wire supports 70 are mounted on the base plate 20 and are positioned on opposite sides of the sagging current transformer 60 in a one-to-one correspondence, and the remaining three wire supports 70 are mounted on the base plate 20 and are positioned between the sagging current transformer 60 and the wire inlet 21 in parallel.
The inlet 21, wire support 70 and droop 60 are standard configurations within the outlet box and remain unchanged when other modules are exchanged. The cable in the generator enters the outlet box through the inlet 21, is bound and fixed along the wire bracket 70, and is connected to each module. Post module 50 is a device for wiring customers.
The modularized outlet box of the medium-high voltage generator is of a modularized structure for devices such as a current transformer and a transformer which are frequently replaced by a customer, and under the premise that the appearance of the outlet box and the overall large frame are not changed, the requirements of the customer on various changes can be met by simply adjusting the configuration of the module, and meanwhile, the positions of the module can be exchanged left and right, and the requirements that both sides can be led out are met.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (4)
1. A modularized wire outlet box of a medium-high voltage generator comprises a box body, a bottom plate, a current transformer module, a terminal post module, a drooping current transformer and a plurality of wire brackets,
the bottom plate is rectangular and is arranged on four supporting legs on the top surface of the machine body of the generator through bolts, a group of wire inlets are formed in the rear part of the width center line of the bottom plate, a group of current transformer mounting holes are formed in the front part of the bottom plate, and a group of transformer mounting holes are symmetrically formed in the left side and the right side of the width center line of the bottom plate;
the current transformer module comprises a first supporting plate, three access type current transformers and a first copper bar; the first supporting plate is mounted on a current transformer mounting hole in the bottom plate through a bolt; the three access type current transformers are fixed on the first supporting plate in parallel; three pairs of mounting holes are formed in the first copper bar corresponding to the three access type current transformers, and a zero line wiring hole is formed in the tail end of one end of the first copper bar; the first copper bar is arranged on the front parts of the top surfaces of the three access type current transformers through three pairs of mounting holes; the outgoing lines of the three generators enter the junction box through the line inlets and are connected with the wiring boards at the rear parts of the top surfaces of the three access type current transformers in a one-to-one correspondence mode; alternatively, the first and second electrodes may be,
the current transformer module comprises a second supporting plate, three through current transformers, two insulating columns and a second copper bar; the second supporting plate is installed on a current transformer installation hole in the bottom plate through a bolt; the three straight-through current transformers are fixed at the rear part of the second supporting plate in parallel; the two insulating columns are arranged at the front part of the second supporting plate at a certain distance; two mounting holes are formed in the second copper bar corresponding to the two insulating columns, three lead wiring holes are formed in the middles of the two mounting holes, a zero line wiring hole is formed in the tail end of one end of the second copper bar, and the second copper bar is mounted on the two insulating columns through the two mounting holes; leading-out wires of the three generators enter the junction box through the wire inlet, penetrate through central through holes of the three through current transformers in a one-to-one correspondence manner and then are connected with three leading-out wire connection holes on the second copper bar in a one-to-one correspondence manner; alternatively, the first and second electrodes may be,
the current transformer module comprises a third supporting plate, two insulating columns and a third copper bar; the third supporting plate is mounted on a current transformer mounting hole in the bottom plate through a bolt; the two insulating columns are arranged in the middle of the third supporting plate at a certain distance; two mounting holes are formed in the third copper bar corresponding to the two insulating columns, a lead wiring hole is formed in the middle of each mounting hole, two zero line wiring holes are formed in the tail end of one end of each mounting hole, and the third copper bar is mounted on the two insulating columns through the two mounting holes; the three generator outgoing lines enter the junction box through the line inlet and are connected with the two mounting holes and the lead wiring hole in a one-to-one correspondence manner;
the transformer module comprises a transformer supporting plate and a three-phase transformer; the transformer supporting plate is installed on a group of transformer installation holes in the bottom plate through bolts, and the three-phase transformer is installed on the transformer supporting plate through bolts; or the transformer module comprises two single-phase transformers which are directly installed on a group of current transformer installation holes on the bottom plate through bolts;
the wiring terminal module comprises a wiring terminal supporting plate, three insulating columns and three wiring copper bars; the wiring terminal supporting plate is arranged on the other group of current transformer mounting holes on the bottom plate through bolts; the three insulating columns are arranged on the wiring terminal supporting plate at intervals; the three wiring copper bars are respectively arranged on the top surfaces of the three insulating columns in a one-to-one correspondence manner through a bolt;
the drooping current transformer is arranged on the width central line of the bottom plate and is close to the current transformer module;
and the plurality of wire supports are arranged on the bottom plate and are positioned on two sides of the droop current transformer and between the droop current transformer and the wire inlet.
2. The modular outlet box of a medium-high voltage generator as claimed in claim 1, wherein the number of the wire brackets is five, two of the wire brackets are installed on both sides of the droop current transformer in a one-to-one correspondence, and the other three wire brackets are installed between the droop current transformer and the inlet in parallel.
3. The modular outlet box of a medium-high voltage generator according to claim 1, characterized in that the box body comprises a front end plate, a rear end plate, a left side plate, a right side plate and a top plate; and the rear end plate is also provided with an auxiliary junction box.
4. The modular outlet box of a medium-high voltage generator as claimed in claim 1, wherein shock-absorbing pads are respectively provided between the top surfaces of the four supporting legs on the body of the generator and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395379.2U CN215452675U (en) | 2021-06-22 | 2021-06-22 | Modular outlet box of medium-high voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395379.2U CN215452675U (en) | 2021-06-22 | 2021-06-22 | Modular outlet box of medium-high voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215452675U true CN215452675U (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121395379.2U Active CN215452675U (en) | 2021-06-22 | 2021-06-22 | Modular outlet box of medium-high voltage generator |
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| Country | Link |
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| CN (1) | CN215452675U (en) |
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2021
- 2021-06-22 CN CN202121395379.2U patent/CN215452675U/en active Active
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