CN104934936A - Digital transformer backup protection measurement and control equipment protection device - Google Patents
Digital transformer backup protection measurement and control equipment protection device Download PDFInfo
- Publication number
- CN104934936A CN104934936A CN201510302829.1A CN201510302829A CN104934936A CN 104934936 A CN104934936 A CN 104934936A CN 201510302829 A CN201510302829 A CN 201510302829A CN 104934936 A CN104934936 A CN 104934936A
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- China
- Prior art keywords
- circuit
- control module
- main control
- digital transformer
- protection
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Links
- 238000005259 measurement Methods 0.000 title abstract 3
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a digital transformer backup protection measurement and control equipment protection device. The device comprises a main control module (2) and is characterized in that a communication port of the main control module (2) is connected with a main-machine circuit (1) and an RS485 circuit (3), and the main control module (2) is respectively connected with an overcurrent protection circuit (4), a clearance zero sequence current protection circuit (5), a three-phase overload protection circuit (6), an overload locking and voltage regulating circuit (7) and a low-cycle protection circuit (8). The digital transformer backup protection measurement and control equipment protection device can reflect various data of a steam turbine and storage and check analysis of the data visually and accurately, and has the advantages of high reliability, high stability and high precision.
Description
Technical field
The present invention relates to a kind of digital transformer backup protection measure and control device protective device, be mainly used in the control device of monitoring transformer working condition.
Background technology
Current digital transformer backup protection measure and control device protective device all adopts mould electricity, number electricity and microcontroller unit; its reliability, long-time stability are not high; integrated level is low; cannot the reaction of omnidirectional high-accuracy than the working condition of that argon gas; setting operation is very inconvenient, cannot inquire about the deficiencies such as accident record.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency; there is provided a kind of to react every data of transformer and the storage of data intuitively and accurately and check analysis, there is highly reliable, high stable, high-precision digital transformer backup protection measure and control device protective device.
The object of the present invention is achieved like this: a kind of digital transformer backup protection measure and control device protective device; described device includes main control module; the PORT COM of described main control module is connected with RS485 circuit with man-machine circuit, and described main control module is connected with low all protective circuits with current foldback circuit, clearance zero sequence protection current protecting circuit, three-phase overload protecting circuit, the locking regulating circuit that transships respectively.
Digital transformer backup protection measure and control device protective device of the present invention, described main control module is one based on the circuit of PLC.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention uses clearance zero sequence protection current protecting circuit, three-phase overload protecting circuit, overload locking regulating circuit processes multiple signal respectively, make data more comprehensive directly perceived, communication to external circuits and control can be realized by RS485 circuit and low all protective circuits simultaneously, can the operations such as Realtime Alerts be carried out, add stability and the reliability of system; And after installing man-machine circuit additional, make operations more directly perceived simple, operating personnel can realize the input of every data easily, also can obtain the process structure of every data easily, use simple and clear.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of digital transformer backup protection measure and control device protective device of the present invention.
Wherein:
Man-machine circuit 1, main control module 2, RS485 circuit 3, current foldback circuit 4, clearance zero sequence protection current protecting circuit 5, three-phase overload protecting circuit 6, overload locking regulating circuit 7, low all protective circuits 8.
Embodiment
See Fig. 1, a kind of digital transformer backup protection measure and control device protective device that the present invention relates to, described device includes main control module 2, described main control module 2 is based upon the control circuit based on PLC, described main control module 2 receives the parameters of each road signal by man-machine circuit 1, the PORT COM of described main control module 2 is connected with RS485 circuit 3, for realizing communication with other equipment or device, described main control module 2 respectively with current foldback circuit 4, clearance zero sequence protection current protecting circuit 5, three-phase overload protecting circuit 6, overload locking regulating circuit 7 is connected with low all protective circuits 8, for to vibration signal, displacement signal, stroke signal, tach signal processes, when finding that numerical value exceedes preset value, via low all protective circuits 8, signal is exported, can external alarm or other warning devices.
Claims (1)
1. a digital transformer backup protection measure and control device protective device, it is characterized in that: described device includes main control module (2), the PORT COM of described main control module (2) is connected with RS485 circuit (3) with man-machine circuit (1), and described main control module (2) is connected with low all protective circuits (8) with current foldback circuit (4), clearance zero sequence protection current protecting circuit (5), three-phase overload protecting circuit (6), the locking regulating circuit (7) that transships respectively; Described main control module (2) is one based on the circuit of PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302829.1A CN104934936A (en) | 2015-06-06 | 2015-06-06 | Digital transformer backup protection measurement and control equipment protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302829.1A CN104934936A (en) | 2015-06-06 | 2015-06-06 | Digital transformer backup protection measurement and control equipment protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104934936A true CN104934936A (en) | 2015-09-23 |
Family
ID=54121973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302829.1A Pending CN104934936A (en) | 2015-06-06 | 2015-06-06 | Digital transformer backup protection measurement and control equipment protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104934936A (en) |
-
2015
- 2015-06-06 CN CN201510302829.1A patent/CN104934936A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |
|
| WD01 | Invention patent application deemed withdrawn after publication |