CN207114037U - Cabinet overtemperature automatic alarm after handcart switch cabinet - Google Patents
Cabinet overtemperature automatic alarm after handcart switch cabinet Download PDFInfo
- Publication number
- CN207114037U CN207114037U CN201720846563.1U CN201720846563U CN207114037U CN 207114037 U CN207114037 U CN 207114037U CN 201720846563 U CN201720846563 U CN 201720846563U CN 207114037 U CN207114037 U CN 207114037U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- chip microcomputers
- at89s52 single
- handcart switch
- temperature sensor
- 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.)
- Active
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses cabinet overtemperature automatic alarm after a kind of handcart switch cabinet, including thermistor temperature sensor, thermistor temperature sensor is connected with AT89S52 single-chip microcomputers, send monitoring signals to AT89S52 single-chip microcomputers, AT89S52 single-chip microcomputers are connected to GSM message transport module, pass through GPRS or short message way remote transmission data；AT89S52 single-chip microcomputers are connected with voltage stabilizing chip power module.The utility model is simple for structure, pass through thermistor temperature sensor, cabinet overtemperature alarm message is to operation maintenance personnel mobile phone after gsm module uploads, cabinet overtemperature situation after can finding in time, handcart switch cabinet can be effectively reduced the probability of accident occurs because temperature is too high, significantly improve the reliability of operation of power networks.
Description
Technical field
It the utility model is related to cabinet overtemperature automatic alarm after a kind of handcart switch cabinet.
Background technology
With the fast development in city, society's electricity consumption amount constantly increases, and transformer station's low-voltage distribution equipment load also increases therewith
Add.Modern transformer station 35kV, 20kV, 10kV power distribution equipment uses handcart switch cabinet, and current transformer, electricity in switch cubicle
Pressure transformer, cable outlet, the equipment such as grounding switch are mounted on after switch cubicle in cabinet, and due to narrow space, equipment is more, therefore
Corresponding caloric value can be produced during normal operation, and during summer high temperature, with the increase of power load, caloric value is also significantly
Increase.In order to ensure all devices can normal reliable operation, it is necessary to assure after switch cubicle the temperature of cabinet within OK range,
Although cabinet has suitable heat emission hole to ensure that heat sheds in time, during day-to-day operation, still after current switch cubicle
It is too high and cause device damage or even the case exploded to there is temperature.Because transformer station is unattended, person on duty can not be right
The temperature of cabinet accomplishes timely, accurate monitoring after switch cubicle, can not find and locate in time when temperature has the trend being stepped up
Reason, will have a huge impact to the performance of insulating part and equipment life, and this is great as one in equipment normal operation
Potential safety hazard, therefore, it is extremely urgent to solve this problem.
According to GB11022《Common technical requirements for high-voltage switchgear》Regulation, in switch cubicle during equipment normal operation around
Environment temperature must not exceed 40 DEG C, otherwise should reduce load immediately or take other cooling measures, prevent from causing insulation breakdown etc.
Problem, ensure that equipment continues reliability service in cabinet.
It is too high but can not find that current transformer, electricity will be made in time that if we also analyze cabinet temperature after switch cubicle
Cable, arrester etc. visual plant are in hot environment for a long time, accelerate its degree of aging, reduce service life, this undoubtedly can
Totally unfavorable influence is produced to the safe and stable operation of equipment in cabinet.
The content of the invention
The purpose of this utility model be to provide a kind of reduction handcart switch cabinet simple for structure, effective because temperature is too high and
The probability of generation accident, significantly improve cabinet overtemperature automatic alarm after the handcart switch cabinet of operation of power networks reliability.
Technical solution of the present utility model is：
Cabinet overtemperature automatic alarm after a kind of handcart switch cabinet, it is characterized in that：Including thermistor temperature sensor,
Thermistor temperature sensor is connected with AT89S52 single-chip microcomputers, sends monitoring signals to AT89S52 single-chip microcomputers, AT89S52 is mono-
Piece machine is connected to GSM message transport module, passes through GPRS or short message way remote transmission data；AT89S52 single-chip microcomputers and voltage stabilizing
Chip power module connects.
The voltage stabilizing chip power module is the circuit shape that regulated output voltage is carried out by introducing depth negative voltage feedback
Formula.
The utility model is simple for structure, by thermistor temperature sensor, cabinet overtemperature alarm message after gsm module uploads
To operation maintenance personnel mobile phone, cabinet overtemperature situation after can finding in time, handcart switch cabinet can be effectively reduced because temperature is too high
And the probability of accident occurs, significantly improve the reliability of operation of power networks.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structured flowchart of the utility model one embodiment.
Fig. 2 is voltage stabilizing chip power circuit schematic diagram.
Embodiment
Cabinet overtemperature automatic alarm after a kind of handcart switch cabinet, including thermistor temperature sensor 1, thermistor
Temperature sensor is connected with AT89S52 single-chip microcomputers 2, sends monitoring signals to AT89S52 single-chip microcomputers, AT89S52 single-chip microcomputers connect
There is GSM message transport module 3, pass through GPRS or short message way remote transmission data；AT89S52 single-chip microcomputers and voltage stabilizing chip
Power module 4 connects.
The voltage stabilizing chip power module is the circuit shape that regulated output voltage is carried out by introducing depth negative voltage feedback
Formula.
The voltage stabilizing chip power module is the circuit shape that regulated output voltage is carried out by introducing depth negative voltage feedback
Formula.Work as voltage pulsation（Or the change of load resistance）When making output voltage U0 risings, sampling voltage Un increases, due to voltage-stabiliser tube
Voltage Uz is constant, the input voltage Unp (=Un-Up=Un-Uz) increases of amplifier, reduces A output（Adjust the base stage electricity of pipe
Potential drop is low）, and make the adjustment pipe T low increase of c-e pressure drops, so as to adjust output voltage U0（=UI-Uce）Reduce.Make output voltage
Obtain stabilization.Circuit is to carry out regulated output voltage by introducing depth negative voltage feedback.
Claims (2)
1. cabinet overtemperature automatic alarm after a kind of handcart switch cabinet, it is characterized in that：Including thermistor temperature sensor, heat
Quick RTD is connected with AT89S52 single-chip microcomputers, sends monitoring signals to AT89S52 single-chip microcomputers, AT89S52 monolithics
Machine is connected to GSM message transport module, passes through GPRS or short message way remote transmission data；AT89S52 single-chip microcomputers and voltage stabilizing core
Piece power module connects.
2. cabinet overtemperature automatic alarm after handcart switch cabinet according to claim 1, it is characterized in that：The voltage stabilizing core
Piece power module is the circuit form that regulated output voltage is carried out by introducing depth negative voltage feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846563.1U CN207114037U (en) | 2017-07-13 | 2017-07-13 | Cabinet overtemperature automatic alarm after handcart switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846563.1U CN207114037U (en) | 2017-07-13 | 2017-07-13 | Cabinet overtemperature automatic alarm after handcart switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207114037U true CN207114037U (en) | 2018-03-16 |
Family
ID=61572943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846563.1U Active CN207114037U (en) | 2017-07-13 | 2017-07-13 | Cabinet overtemperature automatic alarm after handcart switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207114037U (en) |
-
2017
- 2017-07-13 CN CN201720846563.1U patent/CN207114037U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202141524U (en) | Switch cabinet temperature monitoring system based on wireless network | |
| CN203455936U (en) | Passive wireless temperature rise monitoring device | |
| CN202903335U (en) | Switch-cabinet temperature-infrared monitoring system | |
| CN207114037U (en) | Cabinet overtemperature automatic alarm after handcart switch cabinet | |
| CN205140816U (en) | Isolator monitors heat abstractor | |
| CN202817567U (en) | Intelligent box-type wind power substation | |
| CN204373809U (en) | A kind of watchband type passive and wireless temperature measurement on-line device | |
| CN107369301A (en) | Cabinet overtemperature automatic alarm after handcart switch cabinet | |
| CN204030624U (en) | A kind of grid-connected anti-backflow device | |
| CN203274950U (en) | Transformer station temperature sensing device based on wireless temperature transmission | |
| CN204314684U (en) | A kind of temperature of high-tension switch cabinet supervisory system based on PLC | |
| CN204696647U (en) | A kind of multifunction electric counter box | |
| CN202633933U (en) | Surge protector circuit of low-voltage power supply | |
| CN108471644B (en) | 4G high-speed communication module applied to electric power | |
| CN203705056U (en) | Self-induction type high-voltage contact wireless temperature measuring device | |
| CN202586369U (en) | Photovoltaic grid-connected inverter | |
| CN202929508U (en) | Unattended substation control room environment intelligent management apparatus | |
| CN206807017U (en) | A kind of distribution transformer three-phase load intelligent balance device | |
| CN207163599U (en) | A kind of transformer oil simulation detection system | |
| CN205593667U (en) | System for carry out temperature measurement to cable termination | |
| CN103499762A (en) | Online detection device for leakage current of lightning arrester of power distribution network | |
| CN202869678U (en) | High-voltage wireless temperature measuring equipment and system including the equipment | |
| CN104950759A (en) | Online monitoring and maintaining system for intelligent substation | |
| CN204334410U (en) | Motor power conditioning controller | |
| CN203502531U (en) | Online detection device of leakage currents of power distribution network lighting arrestors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |