CN212027928U - Diesel generating set controller with leakage protection function - Google Patents
Diesel generating set controller with leakage protection function Download PDFInfo
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- CN212027928U CN212027928U CN202020521041.6U CN202020521041U CN212027928U CN 212027928 U CN212027928 U CN 212027928U CN 202020521041 U CN202020521041 U CN 202020521041U CN 212027928 U CN212027928 U CN 212027928U
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- access terminal
- sequence current
- zero sequence
- controller
- generating set
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Abstract
The utility model discloses a diesel generating set controller with leakage protection function, which comprises a controller main body connected on the diesel generating set, a low-voltage generator matched with a control circuit board, a voltage loop access terminal, a current loop access terminal, a battery pack control end, a fuel control access terminal, a starting motor control access terminal and a charging point motor control access terminal which are arranged on the controller main body, wherein the controller main body is also provided with a zero sequence current access terminal, a zero sequence current transformer is arranged at the outgoing line of the primary output circuit of the low-voltage generator, the A, B, C three-phase line and the zero line of the low-voltage generator all pass through the zero sequence current transformer, the secondary line of the zero sequence current transformer is connected with a zero sequence current access terminal, when the leakage occurs from the outlet end of the low-voltage generator to any one of the load positions, the current flows through the zero-sequence current transformer. The utility model discloses possess electric leakage monitor function, electric leakage early warning function and electric leakage alarming function, the safety in utilization is high.
Description
Technical Field
The utility model relates to a controller especially relates to a take diesel generating set controller of earth leakage protection function.
Background
The diesel generator set as a standby power supply consists of three parts, namely a diesel engine, a self-excited generator and a control system. The control system controls the start and stop of the diesel generator set, and the controller can send a stop instruction to the diesel engine under the conditions of high water temperature, high engine oil pressure, low engine oil pressure, overspeed, slow speed and difficult air intake of the engine. The daily maintenance of the diesel generator set basically adopts the maintenance of the diesel engine as the work of replacing the three filters, the engine oil and the water filter, cleaning ash of the generator, maintaining the exciter and the like. Leakage accidents can also happen frequently in the using process due to the reasons of insulation aging of equipment, insulation aging of a power transmission line and dampness; the special movable generator set is characterized in that the movable generator set is frequently moved, so that the cable is easy to generate faults such as abrasion and the like to cause electric leakage, and the use safety is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the defect and not enough that exist among the above-mentioned prior art, provide one kind and adopt zero sequence current transformer and zero sequence current access terminal cooperation low voltage generator to detect the electric leakage condition for it possesses electric leakage monitoring function, electric leakage early warning function and electric leakage alarming function, ensures the diesel generating set controller of taking the earth leakage protection function of safety in utilization.
The technical scheme of the utility model: the utility model provides a take earth leakage protection function's diesel generating set controller, is including connecting the low voltage generator of controller main part, cooperation control scheme board on diesel generating set, setting voltage circuit access terminal, current circuit access terminal, group battery control end, fuel control access terminal, starter motor control access terminal and the point of filling motor control access terminal in the controller main part, still be equipped with zero sequence current access terminal in the controller main part, export the circuit department of being qualified for the next round of competitions at low voltage generator and set up zero sequence current transformer, the A, B, C three-phase line and the zero line of low voltage generator are whole to be passed zero sequence current transformer, and zero sequence current transformer's secondary line connects zero sequence current access terminal, and the electric leakage takes place in any place of low voltage generator leading-out terminal to load department, has the electric current to flow through among the zero sequence current.
The utility model discloses a zero sequence current transformer and zero sequence current access terminal cooperation low voltage generator detect the electric leakage condition for it possesses electric leakage monitoring function, electric leakage early warning function and electric leakage alarming function, ensures the safety in utilization.
Preferably, the voltage loop is connected to a voltage loop connection terminal of the controller body through a fuse.
Preferably, the current loop is connected to the current loop connection terminal of the controller main body through the current dedicated terminal row.
Preferably, the controller main body is further provided with an oil pressure control access terminal, a cooling water temperature control access terminal, an oil position control access terminal and a cooling water level control access terminal.
Preferably, the controller main body is further provided with a usb programming port, and an input, output and remote output port, and the usb programming port is connected with a rotation speed sensor.
Preferably, the controller main body is further provided with 4 channels of user-defined input terminals and 4 channels of user-defined output terminals.
The utility model discloses a zero sequence current transformer and zero sequence current access terminal cooperation low voltage generator detect the electric leakage condition for it possesses electric leakage monitoring function, electric leakage early warning function and electric leakage alarming function, ensures the safety in utilization.
Drawings
FIG. 1 is a schematic wiring diagram of the present invention;
FIG. 2 is a connection diagram of the present invention;
in the figure, 1, a diesel generator set, 2, a controller main body, 3, a low-voltage generator, 4, a voltage loop access terminal, 5, a current loop access terminal, 6, a battery pack control access terminal, 7, a fuel control access terminal, 8, a starting motor control access terminal, 9, a charging point motor control access terminal, 10, a zero sequence current access terminal, 11, a zero sequence current transformer, 12, a usb programming setting port, 13, an input, an output and a remote output port, 14, an engine oil pressure control access terminal, 15, a cooling water temperature control access terminal, 16, an engine oil position control access terminal, 17, a cooling water level control access terminal, 18, a user-defined input terminal, 19, a user-defined output terminal, 20, a fuse and 21 are arranged in the controller main body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1 and 2, a diesel generator set controller with a leakage protection function includes a controller main body 2 connected to a diesel generator set 1, a low voltage generator 3 cooperating with a control circuit board 2, a voltage circuit access terminal 4, a current circuit access terminal 5, a battery pack control access terminal 6, a fuel control access terminal 7, a starter motor control access terminal 8, and a charge point motor control access terminal 9, which are disposed on the controller main body 2. The controller main body 2 is further provided with a zero sequence current access terminal 10, a zero sequence current transformer 11 is arranged at the outlet of the primary output circuit of the low-voltage generator 3, A, B, C three-phase lines and zero lines of the low-voltage generator 3 all penetrate through the zero sequence current transformer 11, a secondary line of the zero sequence current transformer 11 is connected with the zero sequence current access terminal 10, and when electric leakage occurs from the outlet end of the low-voltage generator 3 to any part of a load, current flows through the zero sequence current transformer 11. The voltage loop is connected to the voltage loop connection terminal 4 of the controller main body 2 through the fuse 20. The current loop is connected to the current loop connection terminal 5 of the controller main body 2 through the current dedicated terminal row. The controller main body 2 is further provided with an oil pressure control access terminal 14, a cooling water temperature control access terminal 15, an oil position control access terminal 16, and a cooling water level control access terminal 17. The controller main body 2 is also provided with a usb programming port 12 and an input, output and remote output port 13, and the usb programming port 12 is connected with a rotation speed sensor 21. The controller main body 2 is also provided with 4-way user-defined input terminals 18 and 4-way user-defined output terminals 19.
The utility model discloses during the use, take place the electric leakage when any of low voltage generator leading-out terminal to load department, have the electric current to flow through among the zero sequence current transformer. Leakage current flows through the zero sequence current transformer and passes through the zero sequence current access terminal, and the controller can collect the leakage current. When the system leakage current is larger than 15mA, the controller can display the leakage current value, when the leakage current exceeds 150mA, the controller sends out early warning, and when the current exceeds 200mA, the controller sends out a warning signal. The administrator can take corresponding measures according to the conditions of the operation site to stop the diesel generating set. The colleagues can send out a stop instruction when the leakage current exceeds 200mA by utilizing the automatic control function of the controller, and stop the diesel generator set.
The utility model discloses be suitable for high-pressure diesel generating set, rail diesel generating set altogether, electricity accent diesel generating set, adapt to the diesel generating set system transformation. The method is also suitable for a generator with digital voltage regulation, the over-excitation protection of the generator is set according to an over-excitation curve of the generator set, when the exciting current exceeds the setting value of the over-excitation curve, the generator set controller sends a stop instruction to the engine, and the engine (engine) is stopped.
The utility model provides a controller main part is just conventional diesel generating set's controller, and zero sequence current transformer is conventional zero sequence current transformer, does not all do the detail and states.
The utility model discloses a zero sequence current transformer and zero sequence current access terminal cooperation low voltage generator detect the electric leakage condition for it possesses electric leakage monitoring function, electric leakage early warning function and electric leakage alarming function, ensures the safety in utilization.
Claims (6)
1. The utility model provides a take earth leakage protection function's diesel generating set controller, is including connecting the low voltage generator of controller main part, cooperation control scheme board in diesel generating set, setting up voltage circuit access terminal, current circuit access terminal, group battery control end, fuel control access terminal, starter motor control access terminal and fill some electric machine control access terminal in the controller main part, its characterized in that: the controller main body is further provided with a zero sequence current access terminal, a zero sequence current transformer is arranged at the outlet of the primary output circuit of the low-voltage generator, A, B, C three-phase lines and zero lines of the low-voltage generator all penetrate through the zero sequence current transformer, a secondary line of the zero sequence current transformer is connected with the zero sequence current access terminal, and when electric leakage occurs from the outlet end of the low-voltage generator to any one of the load positions, current flows through the zero sequence current transformer.
2. The diesel generating set controller with the earth leakage protection function according to claim 1, wherein: the voltage loop is connected to a voltage loop access terminal of the controller main body after passing through the fuse.
3. The diesel generating set controller with the earth leakage protection function according to claim 1, wherein: the current loop is connected to the current loop access terminal of the controller main body after passing through the current special terminal row.
4. The diesel generating set controller with the earth leakage protection function according to claim 1, wherein: the controller main body is also provided with an engine oil pressure control access terminal, a cooling water temperature control access terminal, an engine oil position control access terminal and a cooling water level control access terminal.
5. The diesel generating set controller with the earth leakage protection function according to claim 1, wherein: still be equipped with usb programming on the controller main part and set up port and input, output and long-range output port, be connected with speed sensor on the usb programming sets up the port.
6. The diesel generating set controller with the earth leakage protection function according to claim 1, wherein: the controller main body is also provided with 4 paths of user-defined input terminals and 4 paths of user-defined output terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521041.6U CN212027928U (en) | 2020-04-10 | 2020-04-10 | Diesel generating set controller with leakage protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521041.6U CN212027928U (en) | 2020-04-10 | 2020-04-10 | Diesel generating set controller with leakage protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212027928U true CN212027928U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020521041.6U Active CN212027928U (en) | 2020-04-10 | 2020-04-10 | Diesel generating set controller with leakage protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212027928U (en) |
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2020
- 2020-04-10 CN CN202020521041.6U patent/CN212027928U/en active Active
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