CN2472395Y - Automatic fault monitoring terminals for power distribution - Google Patents
Automatic fault monitoring terminals for power distribution Download PDFInfo
- Publication number
- CN2472395Y CN2472395Y CN 01213081 CN01213081U CN2472395Y CN 2472395 Y CN2472395 Y CN 2472395Y CN 01213081 CN01213081 CN 01213081 CN 01213081 U CN01213081 U CN 01213081U CN 2472395 Y CN2472395 Y CN 2472395Y
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- China
- Prior art keywords
- circuit
- power distribution
- photoelectricity coupling
- modem
- executive
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- Expired - Lifetime
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to a monitoring terminal for power distribution automated failure, which comprises a main control circuit, an acquisition circuit, an executive circuit, a display and a state setting circuit, a modem circuit, a power supply and a housing; the utility model is characterized in that the main control circuit is connected with the acquisition circuit, the executive circuit, the display and state setting circuit and the modem circuit; the main control circuit, the acquisition circuit, the executive circuit, the display and state setting circuit and the modem circuit are positioned in the housing. The power distribution circuit layer can realize the failure diagnosis, the failure isolation and the normal power supply recovery of the non-fault sections; the utility model has the advantages of dustproof, moistureproof, good anti-condensation performance and high reliability.
Description
The utility model relates to panel switches monitoring terminal on a kind of post of power industry electrical power distribution automatization system, particularly relates to power distribution automation malfunction monitoring terminal on a kind of voltage-type post.
At present, the existing supervisory control system that is used for electrical power distribution automatization system mainly is to be made of monitor terminal, data communication network etc. on the monitoring backstage of dispatching terminal, the post.It is data of utilizing monitor terminal collection site on the post, by data transmission network the data of gathering is passed to the monitoring backstage of dispatching terminal, analyzes the current data of gathering by the monitoring backstage of dispatching terminal, judges on-the-spot on off state, implements remote monitoring.If break down in the electrical network somewhere, monitor terminal returns the information of gathering to the monitoring back and accuses on the post, carries out analysis and judgement by the monitoring backstage and points out abort situation.Monitor terminal itself does not have the function of the non-fault section normal power supply of failure diagnosis, Fault Isolation and recovery, and the current calibration difficulty, causes malfunction and tripping easily, is unsuitable for complicated distribution net work structure.
The purpose of this utility model is: a kind of power distribution automation malfunction monitoring terminal is provided, it had both had data acquisition, transmission and enforcement remote monitoring function, again can adjusting by voltage-time, realize failure diagnosis, Fault Isolation and the non-fault section normal power supply of recovery function at the distribution line layer, and dustproof, moistureproof, anti-condensation performance is good, the reliability height.
The technical solution of the utility model is: a kind of power distribution automation malfunction monitoring terminal, it mainly comprises governor circuit, Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit, power supply, housing composition, it is characterized in that: governor circuit is connected with Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit, and governor circuit, Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit all are fixed in the housing.
Above-mentioned said housing is that upper diameter is little, " cap " shape structure that lower diameter is big.
Described governor circuit is mainly by TMP93CW41DF single-chip microcomputer and data file, the I/O mouth, the 74HC244 buffer, photoelectricity coupling circuit and crystal oscillator are formed, the photoelectricity coupling circuit comprises 44 road photoelectricity coupling IC, wherein the output of photoelectricity coupling circuit IC11 and IC12 is electrically connected with the I/O (PA0-PA7) of TMP93CW41DF single-chip microcomputer, the I/O (PB0-PA5) of TMP93CW41 DF single-chip microcomputer is connected with the input port 18-13 of 74HC244 buffer, the delivery outlet 2-8 of 74HC244 buffer connects the input of photoelectricity coupling circuit IC15 and IC16, and the output of photoelectricity coupling circuit IC15 and IC16 is electrically connected with demonstration and setting state circuit.
The utility model compared with prior art has following characteristics:
1. adopt the monitor terminal of " cap " shape shell generally all to use out of doors, environmental condition is relatively poor, and this housing is that upper diameter is little, the sealing that lower diameter is big " cap " shape shell, solve problems such as dustproof, moistureproof, anti-condensation, improved the reliability and the useful life of using.
2. because this power distribution automation malfunction monitoring terminal, include governor circuit, Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit simultaneously, so it is easy to realize the troubleshooting pattern that failure diagnosis, Fault Isolation and non-faulty section restore electricity at line layer.When line failure, transformer station's outlet switch trip is after 5 seconds, after transformer station goes out the wiretap single shot reclosing, monitor terminal detects the on-pole switch mains side voltage, CPU starts the timer timing immediately, and timing is sent the order of closing a floodgate to the X time limit of setting to on-pole switch, when entering the Y quantum clock simultaneously, if Y in the time limit on-pole switch close a floodgate successfully, illustrate that this switch section is normal, " voltage-time " that enters next monitor terminal adjusts.If on-pole switch decompression tripping operation once more illustrates that this switch section breaks down, CPU gives an order and makes this on-pole switch locking, isolated fault section.Transformer station goes out wiretap secondary reclosing then, recovers the normal power supply of non-fault section.Should " voltage-time asks " local troubleshooting pattern can accurately point out abort situation, in time the isolated fault section restores electricity as early as possible, has shortened interruption duration, has improved the reliability of power distribution automation level and power supply.
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the utility model governor circuit figure.
Fig. 3 is the utility model Acquisition Circuit figure.
Fig. 4 shows and the setting state circuit diagram for the utility model.
Fig. 5 is the utility model executive circuit and power circuit diagram.
Fig. 6 is the utility model modem circuit figure.
Fig. 7 is housing profile of the present utility model and johning knot composition.
As shown in Figure 1, the utility model is made up of governor circuit, Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit, power supply.Its operation principle is: the state that governor circuit sets the result and the setting state circuit of Acquisition Circuit, judge the ruuning situation of electrical network and the position that switch should be located, the time limit of delaying time to then and setting, again by the executive circuit control switch close/minute/lock operation, use LED display switch state simultaneously, and all signals are reported to the monitoring backstage by modem circuit.Realize local troubleshooting, distant place real-time monitoring and control.
Fig. 2 is a main control circuit part of the present utility model, governor circuit is mainly by TMP93CW41DF single-chip microcomputer and data file, the I/O mouth, the 74HC244 buffer, photoelectricity coupling circuit and crystal oscillator are formed, the photoelectricity coupling circuit comprises 44 road photoelectricity coupling IC, wherein the output of photoelectricity coupling circuit IC11 and 1C12 is electrically connected with the I/O (PA0-PA7) of TMP93CW41DF single-chip microcomputer, the I/O of TMP93CW41DF single-chip microcomputer (PB0-PA5) is connected with the input port 18-13 of 74HC244 buffer, the delivery outlet 2-8 of 74HC244 buffer connects the input of photoelectricity coupling circuit IC15 and IC16, and the output of photoelectricity coupling circuit IC15 and IC16 is electrically connected with demonstration and setting state circuit.CPU judges the state that switch should be in, and starts timer according to the segmentation S/ contact L function that the transformation result and the initialization circuit of A/D converter sets, and timing is sent switch motion order, display command and communication signal to setting the time limit.
Fig. 3 is an Acquisition Circuit part of the present utility model, voltage transformer in this circuit, current transformer are given the voltage signal that collects respectively through RC filtering and are isolated operational amplifier (A, B, C, D) and sampling/retainer (HIC1, HIC2, HIC3, HIC4), after amplification and sampling, enter the input of A/D converter, A/D converter carries out mould/number conversion after receiving the conversion starting command, and the result is deposited in RAM through buffer.
Fig. 4 is demonstration of the present utility model and setting state circuit part, and this circuit is to set functions such as time limit, pattern (segmentation/contact), long-range/scene, address by toggle switch SW101, SW102, SW103, SW104, SW105, SW106.Wherein, toggle switch SW101, SW102, SW103, SW104, SW105, SW106 are connected with the input port of I/O mouth IC circuit 20, the signal that toggle switch is set draws on pull-up resistor and becomes the input that the high-low level signal is delivered to the I/O mouth, CPU judges the function of current setting according to the address signal of I/O mouth, and finishes computing.
Fig. 5 is executive circuit of the present utility model and power circuit part, the executive circuit part, after the data analysis of CPU according to the scene, the output digital signal makes relay LX1, OP1, X1, X2, Y operation, finish the closing of switch/minute/lock operation.In addition, CPU receives the switching manipulation order that send on the monitoring backstage by communication channel, confirms errorless after, send the execution action command, the realization remote control.The power circuit part can be finished voltage transformation, over-voltage protecting function, and for the each several part circuit provides power supply, need not battery.
Modem circuit among Fig. 6 mainly is made of MSM6928RS crystal oscillator and other peripheral circuit, MSM6928RS is special-purpose modulation IC circuit, it adopts the universal circuit design, modem circuit one end CN2 is connected with host computer, and the SDB among the other end CN1, RSB, CSB, RDB, CD1B are connected with governor circuit IC14 pin T4OUT, T3OUT, T2OUT, T1OUT.
Fig. 7 is the outline drawing of housing, and it is that upper diameter is little, " cap " shape structure that lower diameter is big.
Claims (3)
1, a kind of power distribution automation malfunction monitoring terminal, it mainly comprises governor circuit, Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit, power supply, housing composition, it is characterized in that: governor circuit is connected with Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit, and governor circuit, Acquisition Circuit, executive circuit, demonstration and setting state circuit, modem circuit all are fixed in the housing.
2, a kind of power distribution automation malfunction monitoring terminal according to claim 1, it is characterized in that: above-mentioned said housing is that upper diameter is little, " cap " shape structure that lower diameter is big.
3, a kind of power distribution automation malfunction monitoring terminal according to claim 1, it is characterized in that: described governor circuit is mainly by TMP93CW41DF single-chip microcomputer and data file, the I/O mouth, the 74HC244 buffer, photoelectricity coupling circuit and crystal oscillator are formed, the photoelectricity coupling circuit comprises 44 road photoelectricity coupling IC, wherein the output of photoelectricity coupling circuit IC11 and IC12 is electrically connected with the I/O (PA0-PA7) of TMP93CW41DF single-chip microcomputer, the I/O of TMP93CW41DF single-chip microcomputer (PB0-PA5) is connected with the input port 18-13 of 74HC244 buffer, the delivery outlet 2-8 of 74HC244 buffer connects the input of photoelectricity coupling circuit IC15 and IC16, and the output of photoelectricity coupling circuit IC15 and IC16 is electrically connected with demonstration and setting state circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213081 CN2472395Y (en) | 2001-02-28 | 2001-02-28 | Automatic fault monitoring terminals for power distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213081 CN2472395Y (en) | 2001-02-28 | 2001-02-28 | Automatic fault monitoring terminals for power distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472395Y true CN2472395Y (en) | 2002-01-16 |
Family
ID=33632135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213081 Expired - Lifetime CN2472395Y (en) | 2001-02-28 | 2001-02-28 | Automatic fault monitoring terminals for power distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472395Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384062A (en) * | 2013-07-10 | 2013-11-06 | 珠海许继芝电网自动化有限公司 | Isolation control system of grid power distribution fault detection |
| WO2015039458A1 (en) * | 2013-09-18 | 2015-03-26 | 国家电网公司 | Simulated circuit breaker testing device and control method for relay protection |
| CN106855700A (en) * | 2016-11-30 | 2017-06-16 | 河南科技大学 | A kind of control of intelligent terminal for distribution line on-pole switch |
| CN110376486A (en) * | 2019-07-31 | 2019-10-25 | 国网信息通信产业集团有限公司 | A kind of distribution line failure intelligent diagnostics device and method |
-
2001
- 2001-02-28 CN CN 01213081 patent/CN2472395Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384062A (en) * | 2013-07-10 | 2013-11-06 | 珠海许继芝电网自动化有限公司 | Isolation control system of grid power distribution fault detection |
| CN103384062B (en) * | 2013-07-10 | 2016-04-27 | 珠海许继芝电网自动化有限公司 | Isolation control system of grid power distribution fault detection |
| WO2015039458A1 (en) * | 2013-09-18 | 2015-03-26 | 国家电网公司 | Simulated circuit breaker testing device and control method for relay protection |
| CN106855700A (en) * | 2016-11-30 | 2017-06-16 | 河南科技大学 | A kind of control of intelligent terminal for distribution line on-pole switch |
| CN110376486A (en) * | 2019-07-31 | 2019-10-25 | 国网信息通信产业集团有限公司 | A kind of distribution line failure intelligent diagnostics device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110228 Granted publication date: 20020116 |