CN209765010U - Diesel generator switch monitoring device - Google Patents
Diesel generator switch monitoring device Download PDFInfo
- Publication number
- CN209765010U CN209765010U CN201920099892.3U CN201920099892U CN209765010U CN 209765010 U CN209765010 U CN 209765010U CN 201920099892 U CN201920099892 U CN 201920099892U CN 209765010 U CN209765010 U CN 209765010U
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- CN
- China
- Prior art keywords
- diesel generator
- transmitter
- power supply
- circuit breaker
- intermediate relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a diesel generator switch monitoring devices, its characterized in that: the system comprises a diesel generator and an independent power supply, wherein an outlet bus is arranged at the output end of the diesel generator, a circuit breaker is arranged at the downstream of the outlet bus, an isolation disconnecting link is arranged at the downstream of the circuit breaker, a normally open point of the isolation disconnecting link is connected with an intermediate relay in series, and the isolation disconnecting link is connected with a load at the downstream of the intermediate relay; the intermediate relay is connected with the independent power supply; and a transmitter is arranged at the circuit breaker. The utility model provides a diesel generator switch monitoring devices sets up on off state acquisition circuit at the switch, uploads on off state information to DCS system, makes things convenient for the staff to look over the on off state at any time, avoids an inspection to delay time, has improved diesel generator's ageing; the uninterrupted power supply is arranged, the on-off state information is guaranteed to be uploaded to the DCS at any time, observation of workers is not affected, and reliability of the diesel generator on-off monitoring device is improved.
Description
Technical Field
The utility model belongs to the power plant field, concretely relates to diesel generator switch monitoring devices.
Background
The diesel generator is a standby power generation device commonly used by a power plant and is used temporarily when a power grid is in power failure. The diesel generator is connected with the load through the switches, and when the diesel generator is ready to be turned on, the on-site confirmation of whether the switches between the diesel generator and the load are in a closed state or an open state is needed to be carried out manually, so that the problem that the diesel generator generates power to drive a large number of loads to cause the overload of the initial power of the diesel generator is solved; the number of switches between the diesel generator and the load is large, one check is carried out, the time is delayed, the power supply time of the diesel generator is delayed, and the timeliness of power supply of a power plant is reduced.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the above-mentioned prior art, the utility model aims at providing a diesel generator switch monitoring devices.
The purpose of the utility model is realized through the following technical scheme.
A diesel generator switch monitoring device comprises a diesel generator and an independent power supply, wherein an outlet bus is arranged at the output end of the diesel generator, a circuit breaker is arranged at the downstream of the outlet bus, an isolation disconnecting link is arranged at the downstream of the circuit breaker, a normally open point of the isolation disconnecting link is connected with an intermediate relay in series, and a load is connected at the downstream of the isolation disconnecting link after the isolation disconnecting link is connected with the intermediate relay in series;
the auxiliary contact of the circuit breaker is electrically connected with the DCS system, and the auxiliary contact of the intermediate relay is electrically connected with the DCS system; the intermediate relay is connected with the independent power supply;
And a transmitter is arranged at the position of the breaker and is connected with an independent power supply, and the transmitter is connected with a DCS system.
The transmitter comprises a voltage transmitter, a current transmitter, a frequency transmitter and a power transmitter, and the voltage transmitter, the current transmitter, the frequency transmitter and the power transmitter are respectively connected with the DCS system and the independent power supply.
The independent power supply is an uninterruptible power supply.
The independent power supply is a PC section power supply of the boiler.
The utility model has the advantages that: compared with the prior art, the diesel generator switch monitoring device provided by the utility model has the advantages that the switch state acquisition circuit is arranged at the switch, the switch state information is uploaded to the DCS, the switch state can be conveniently checked by the worker at any time, the delay time of one checking is avoided, and the timeliness of the diesel generator is improved; the uninterrupted power supply is arranged, the on-off state information is guaranteed to be uploaded to the DCS at any time, observation of workers is not affected, and reliability of the diesel generator on-off monitoring device is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the connection of the independent power source of the present invention.
In the figure, 1 is a diesel generator, 2 is a circuit breaker, 3 is an isolation disconnecting link, 4 is an intermediate relay, 5 is an independent power supply, 6 is a DCS system, 7 is a transmitter, 8 is a voltage transmitter, 9 is a variable current transmitter, 10 is a frequency transmitter, 11 is a power transmitter, 12 is a load, and 13 is a low-voltage switch cabinet.
Detailed Description
As shown in fig. 1 and 2, in the switch monitoring device for the diesel generator, an output end of the diesel generator 1 is provided with an outlet bus, and the outlet bus is used for transmitting electric power generated by the diesel generator 1; a circuit breaker 2 is arranged at the downstream of the outlet bus, a low-voltage switch cabinet 13 is arranged at the downstream of the circuit breaker 2, and the low-voltage switch cabinet 13 is used for arranging a small circuit breaker required by the isolation disconnecting link 3 and the load 12.
Isolation switch 3 sets up in low-voltage switchgear 13, and isolation switch 3 sets up to two, and every isolation switch 3's normal open point all establishes ties with auxiliary relay 4, and the required miniature circuit breaker of load 12 is connected to the low reaches behind isolation switch 3 and the auxiliary relay 4 series connection, and the load 12 is connected to miniature circuit breaker's low reaches.
The auxiliary contact of the circuit breaker 2 is electrically connected with the DCS system 6, and the auxiliary contact of the intermediate relay 4 is electrically connected with the DCS system 6; the intermediate relay 4 is connected to an independent power supply 5.
The auxiliary contact on the circuit breaker 2 can reflect the state that the circuit breaker 2 is closed or opened, when the circuit breaker 2 is closed, the auxiliary contact on the circuit breaker 2 is conducted, the auxiliary contact on the circuit breaker 2 generates a signal and uploads the signal to the DCS system 6, and the DCS system 6 displays that the switch of the circuit breaker 2 is in a closed state according to a preset display state; when the circuit breaker 2 is disconnected, the auxiliary contact on the circuit breaker 2 is not conducted, the auxiliary contact on the circuit breaker 2 cannot generate a signal, the DCS 6 cannot receive the signal of the auxiliary contact on the circuit breaker 2, and the DCS 6 displays that the switch of the circuit breaker 2 is in a disconnected state according to a preset display state.
The normally open point of the isolation disconnecting link 3 is connected in series with the intermediate relay 4, the intermediate relay 4 is powered by the independent power supply 5, when the isolation disconnecting link 3 is closed, the normally open point of the isolation disconnecting link 3 is closed, the intermediate relay 4 is connected in series with the closed normally open point, the intermediate relay 4 is electrified and excited to generate a signal and upload the signal to the DCS system 6, and the DCS system 6 receives the signal and displays that the isolation disconnecting link 3 is in a closed state according to a preset display state; when isolation switch 3 breaks off, isolation switch 3 normally open the point and keep normally open the state, and auxiliary relay 4 establishes ties with normally open the point, leads to auxiliary relay 4 can't be electrified to be excited, can not produce the signal, and DCS system 6 can not receive auxiliary relay 4's signal, and DCS system 6 shows isolation switch 3 according to preset's display state and is in the off-state.
A voltage transmitter 8, a current transmitter 9, a frequency transmitter 10 and a power transmitter 11 are arranged at the circuit breaker 2, and the voltage transmitter 8, the current transmitter 9, the frequency transmitter 10 and the power transmitter 11 are respectively connected with the DCS system 6 and the independent power supply 5; a voltage transmitter 8, a current transmitter 9, a frequency transmitter 10 and a power transmitter 11 collect and transmit to the DCS system 6 the voltage, current, frequency and power at the switches of the circuit breaker 2, respectively.
The independent power supply 5 is an uninterruptible power supply or a PC section power supply of a boiler and is used for ensuring that the intermediate relay 4, the voltage transmitter 8, the current transmitter 9, the frequency transmitter 10 and the power transmitter 11 are not powered off and monitoring and uploading state information at a switch to the DCS system 6 at any time.
The above description is only a preferred embodiment of the present invention, and is not a limitation to the technical solution of the present invention, and it should be noted that, further improvements and changes can be made by those skilled in the art on the premise of the technical solution of the present invention, and all such improvements and changes should be covered in the protection scope of the present invention.
Claims (4)
1. The utility model provides a diesel generator switch monitoring devices which characterized in that: the system comprises a diesel generator (1) and an independent power supply (5), wherein an outlet bus is arranged at the output end of the diesel generator (1), a circuit breaker (2) is arranged at the downstream of the outlet bus, an isolation disconnecting link (3) is arranged at the downstream of the circuit breaker (2), a normally open point of the isolation disconnecting link (3) is connected in series with an intermediate relay (4), and a load (12) is connected at the downstream of the isolation disconnecting link (3) which is connected in series with the intermediate relay (4);
An auxiliary contact of the circuit breaker (2) is electrically connected with the DCS system (6), and an auxiliary contact of the intermediate relay (4) is electrically connected with the DCS system (6); the intermediate relay (4) is connected with the independent power supply (5);
A transmitter (7) is arranged at the position of the breaker (2), the transmitter (7) is connected with the independent power supply (5), and the transmitter (7) is connected with the DCS system (6).
2. the diesel generator switch monitoring device of claim 1, wherein: the transmitter (7) comprises a voltage transmitter (8), a current transmitter (9), a frequency transmitter (10) and a power transmitter (11), wherein the voltage transmitter (8), the current transmitter (9), the frequency transmitter (10) and the power transmitter (11) are respectively connected with the DCS system (6) and the independent power supply (5).
3. A diesel generator switch monitoring device according to claim 1 or 2, characterized in that: the independent power supply (5) is an uninterruptible power supply.
4. A diesel generator switch monitoring device according to claim 1 or 2, characterized in that: the independent power supply (5) is a PC section power supply of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099892.3U CN209765010U (en) | 2019-01-22 | 2019-01-22 | Diesel generator switch monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099892.3U CN209765010U (en) | 2019-01-22 | 2019-01-22 | Diesel generator switch monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209765010U true CN209765010U (en) | 2019-12-10 |
Family
ID=68749736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920099892.3U Expired - Fee Related CN209765010U (en) | 2019-01-22 | 2019-01-22 | Diesel generator switch monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209765010U (en) |
-
2019
- 2019-01-22 CN CN201920099892.3U patent/CN209765010U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |