CN205562713U - System for gas insulated metal enclosed swit chgear heating device of on -line monitoring transformer substation - Google Patents
System for gas insulated metal enclosed swit chgear heating device of on -line monitoring transformer substation Download PDFInfo
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- CN205562713U CN205562713U CN201620394852.8U CN201620394852U CN205562713U CN 205562713 U CN205562713 U CN 205562713U CN 201620394852 U CN201620394852 U CN 201620394852U CN 205562713 U CN205562713 U CN 205562713U
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Abstract
System for gas insulated metal enclosed swit chgear heating device of on -line monitoring transformer substation belongs to real -time on -line monitoring field. The problem of the unable real -time supervision of the current gas insulated metal enclosed swit chgear heating control of transformer substation device is solved. A temperature data collection circuit is used for monitoring the gas insulated metal enclosed swit chgear heating device's of transformer substation operational environment temperature, and deliver to main control unit with the temperature data who gathers, another temperature data collection circuit is used for the outer ambient temperature of monitoring room, and deliver to main control unit with the temperature data who gathers, it is first, two and three current transformer are used for detecting the gas insulated metal enclosed swit chgear heating device's of transformer substation A respectively, B and C looks heating current, and deliver to main control unit with the three phase current who gathers, main control unit's the control signal output and the control signal input of control status indicator lamp circuit are connected, main control unit communicates through wireless communication circuit and monitor terminal. Mainly used carries out on -line monitoring to the gas insulated metal enclosed swit chgear heating device of transformer substation.
Description
Technical field
The invention belongs to real time on-line monitoring field.
Background technology
Gas insulated metal enclosed swit chgear, is at the wide variety of equipment of transformer station, wherein the internal gas used of gas insulated metal enclosed swit chgear
It is SF6 gas.SF6 gas has good insulating properties under room temperature state and uses as electric arc extinguishing gases.But
Being under low temperature state, after SF6 gas liquefaction, its insulating properties and electric arc extinguishing effect reduce, and can thus cause combination
Electrical safety rapid drawdown, seriously jeopardizes power supply safety.Transformer station's gas insulated metal enclosed swit chgear computer heating control is by temperature detect switch (TDS) group at present
Become, control relatively easy, thus bring a lot of drawback, such as, cannot be carried out diagnosis and monitoring when heater breaks down,
Cause SF6 gas liquefaction, accident occurs；Temperature data can not be carried out long-distance transmissions by temperature detect switch (TDS), it is impossible to temperature number
It is analyzed statistics according to, fire data and heating current data.
For these reasons, being badly in need of a kind of device can the gas insulated metal enclosed swit chgear heater work of real time on-line monitoring transformer station
The equipment of state, in real time monitoring combined electrical apparatus firing equipment state and result, carried out temperature data and heating current data point
Analysis calculates, it is determined that heater duty, it is ensured that combined electrical apparatus normally works, and ensures power supply safety.
Utility model content
This utility model is for asking of solving that existing transformer station gas insulated metal enclosed swit chgear heating control apparatus cannot monitor in real time
Topic, this utility model provides the system of a kind of on-line monitoring transformer station gas insulated metal enclosed swit chgear heater.
The system of on-line monitoring transformer station gas insulated metal enclosed swit chgear heater, it includes the first current transformer, the second electric current
Transformer, the 3rd current transformer, two temperature collection circuits, master controller, wireless communication line and status indicator lamp electricity
Road；
In two temperature collection circuits, one of them temperature collection circuit adds hot charging for monitoring substation gas insulated metal enclosed swit chgear
The operating ambient temperature put, the temperature signal outfan of this temperature collection circuit and the first temperature signal input of master controller
Connect,
Another temperature collection circuit is used for monitoring outdoor environment temperature, and the temperature signal outfan of temperature collection circuit and master
Second temperature signal input of controller connects,
First current transformer is used for detecting the A heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and first
The current signal output end of current transformer is connected with the first heating current signal input of master controller,
Second current transformer is used for detecting the B heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and second
The current signal output end of current transformer is connected with the second heating current signal input of master controller,
3rd current transformer is used for detecting the C heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and the 3rd
The current signal output end of current transformer is connected with the Acanthopanan trifoliatus (L.) Merr. thermocurrent signal input part of master controller,
The control signal outfan of master controller is connected with the control signal input of controlled state indicator light circuit,
Master controller is communicated with monitoring terminal by wireless communication line；
Each temperature collection circuit includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, electricity
Resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity C1,
Electric capacity C2, electric capacity C3, diode D1, diode D2, diode D3, audion Q1, potentiometer W1, potentiometer W2,
Temperature sensor T1, the first constant-current source chip and power amplifier；
First constant-current source chip uses LM317 cake core to realize, and power amplifier is OP07 type power amplifier, and temperature passes
Sensor T1 is PT100 type temperature sensor；
The anode of diode D1 is connected with+12V power supply, the negative electrode of diode D1 simultaneously with No. 3 of the first constant-current source chip
One end of pin and resistance R1 connects, and No. 4 pins of No. 2 pins and its of the first constant-current source chip are connected, the first constant-current source
No. 2 pins of chip are also connected with No. 7 pins of power amplifier,
No. 4 pins of the first constant-current source chip and one end of resistance R2, one end of electric capacity C3 and the control end of potentiometer W1
Together with time connect,
The other end of resistance R2 is simultaneously connected with one end of resistance R3 and No. 1 pin of the first constant-current source chip, resistance R3
The other end be connected with the other end of electric capacity C3,
One end of potentiometer W1 is connected with one end of resistance R4, one end of the other end of resistance R4 and temperature sensor T1 and
One end of electric capacity C1 and one end of resistance R6 are simultaneously connected with, and the other end of temperature sensor T1 is connected with its adjustable end, and
It is simultaneously connected with one end of one end, one end of resistance R8, the other end of electric capacity C1 and the electric capacity C2 of resistance R7, electric capacity
The other end of C2 is simultaneously connected with one end of the other end, the other end of resistance R8 and the resistance R5 of resistance R7, resistance R5
The other end be connected with the other end of potentiometer W1,
The other end of resistance R3 is connected with the anode of diode D3 and one end of resistance R13, the negative electrode of diode D3 and two
The anode of pole pipe D2 connects, and the negative electrode of diode D2 connects with one end of resistance R14 and No. 4 pins of power amplifier simultaneously
Connect, another termination power ground of resistance R14；
The other end of resistance R13 is connected with one end of potentiometer W2, and the other end of potentiometer W2 controls end with it and is connected, electricity
The position other end of device W2 is simultaneously connected with one end of one end of resistance R10 and resistance R11, the other end of resistance R10 and electricity
One end of resistance R9 and No. 2 pins of power amplifier are simultaneously connected with, and the other end of resistance R11 is connected with one end of resistance R6,
The other end of resistance R6 is connected with power amplifier No. 3 pins；
No. 6 pins of power amplifier are connected with one end of resistance R12, the other end of resistance R12 and the base of audion Q1
Pole connects, and the emitter stage of audion Q1 is connected with one end of resistance R11, and the colelctor electrode of audion Q1 is another with resistance R1's
One end connects；
One end of resistance R14 is as the temperature signal outfan of temperature collection circuit.
Described master controller includes resistance R18, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, polar capacitor E1
And single-chip microcomputer, and the model of single-chip microcomputer is C8051F500；
Described controlled state indicator light circuit include the second constant-current source chip, electric capacity C8, polar capacitor E2, resistance R15,
Resistance R16, resistance R17, light emitting diode L1, light emitting diode L2 and light emitting diode L3, and the second constant current source core
Sheet uses AS1117-3.3 cake core to realize；
One end of resistance R18 is connected with+3.3V power supply, and also one end with electric capacity C4, one end of resistance R18 is connected, electric capacity
Another termination power ground of C4, the other end of resistance R18 is simultaneously connected with single-chip microcomputer No. 2 pins and No. 3 pins, electricity
The one end holding C5 is connected with one end of electric capacity C6, and one end of electric capacity C6 is also same with No. 4 pins of single-chip microcomputer and No. 5 pins
Time connect, No. 7 pins of the other end of electric capacity C5 and the other end of electric capacity C6, No. 6 pins of single-chip microcomputer and single-chip microcomputer with
Time connect, another termination power ground of electric capacity C5；
The positive ends of polar capacitor E1 is simultaneously connected with one end of electric capacity C7 and No. 8 pins of single-chip microcomputer, polar capacitor
The negative polarity end of E1 and the other end of electric capacity C7 all connect power supply ground；
No. 1 pin of the second constant-current source chip connects power supply ground, and No. 3 pins of the second constant-current source chip connect+5V power supply, and second
No. 4 pins of No. 2 pins and its of constant-current source chip are connected, No. 2 pins of the second constant-current source chip also with the one of electric capacity C8
One end of end, the positive ends of polar capacitor E2, one end of resistance R15, one end of resistance R16 and resistance R17 is simultaneously
Connect,
Another termination power ground of electric capacity C8, the positive-negative polarity termination power ground of polar capacitor E2, the other end of resistance R15
Being connected with the anode of light emitting diode L1, the other end of resistance R16 is connected with the anode of light emitting diode L2, resistance R17
The other end be connected with the anode of light emitting diode L3,
The negative electrode of light emitting diode L1 is connected with single-chip microcomputer No. 42 pins,
The negative electrode of light emitting diode L2 is connected with single-chip microcomputer No. 41 pins,
The negative electrode of light emitting diode L3 is connected with single-chip microcomputer No. 40 pins,
No. 39 pins of single-chip microcomputer and the temperature signal outfan of a temperature collection circuit connect；
No. 38 pins of single-chip microcomputer are connected with the temperature signal outfan of another temperature collection circuit；
No. 37 pins of single-chip microcomputer and the current signal output end of the first current transformer connect；
No. 36 pins of single-chip microcomputer and the current signal output end of the second current transformer connect；
No. 35 pins of single-chip microcomputer and the current signal output end of the 3rd current transformer connect；
No. 46 pins of single-chip microcomputer are connected with the write signal input of wireless communication line,
No. 45 pins of single-chip microcomputer are connected with the read signal outfan of wireless communication line.
2 road temperature collection circuits are connected with analog acquisition circuit, are inputted by temperature current signal in main control chip, 3 road electric currents
No. 3 heaters measured respectively by transformer (has A, B, C three-phase voltage, each phase to be equipped with in one control chamber of transformer station
Heater), current transformer output is directly entered main control chip and is acquired processing, and main control chip is that C8051F500 is mono-
Sheet machine, by wireless communication line will gather data send to Surveillance center, monitoring analysis software to temperature data, add thermoelectricity
Flow data processes, and computational analysis draws heater heating properties data, can report to the police when occurring abnormal, closes for transformer station
The trouble free service of formula combined electrical apparatus provides safeguard, and improves transformer station's power supply safety.
This utility model brings and provides the benefit that, temperature acquisition part uses PT100 temperature sensor, and Acquisition Circuit uses
VI translation circuit, changes the weak voltage on PT100 sensor and is converted to curent change by analog circuit, this mode
Primarily to Anti-interference Design, site environment voltage is high, electromagnetic field intensity, and general Acquisition Circuit is easily subject to extraneous electromagnetic field
Interference, job insecurity, by the design of this analog circuit, it is particularly suitable for this strong-electromagnetic field environment, temperature acquisition is accurate
Stable, improve more than 5%, and the result of collection is transferred to monitor terminal by wireless communication module, for monitoring in real time
Transformer station's gas insulated metal enclosed swit chgear heater offers precise data, and provides safeguard for subsequent software analytical calculation.
Accompanying drawing explanation
Fig. 1 is that the principle of the system of on-line monitoring transformer station described in the utility model gas insulated metal enclosed swit chgear heater is shown
It is intended to；
Fig. 2 is the electrical block diagram of temperature collection circuit；
Fig. 3 is the electrical block diagram of master controller；
Fig. 4 is the electrical block diagram of status indicator lamp circuit；
Fig. 5 is that A heat phase device adds thermocurrent and temperature profile.
Detailed description of the invention
Detailed description of the invention one: see Fig. 1 and Fig. 2 and present embodiment is described, the on-line monitoring described in present embodiment becomes
The system of power station gas insulated metal enclosed swit chgear heater, it include first current transformer the 1, second current transformer 2,
Three current transformer 3, two temperature collection circuits 4, master controller 5, wireless communication line 6 and status indicator lamp circuit 7；
In two temperature collection circuits 4, one of them temperature collection circuit 4 adds for monitoring substation gas insulated metal enclosed swit chgear
First temperature letter of the operating ambient temperature of thermal, the temperature signal outfan of this temperature collection circuit 4 and master controller 5
Number input connects,
Another temperature collection circuit 4 is used for monitoring outdoor environment temperature, and the temperature signal outfan of temperature collection circuit 4
It is connected with the second temperature signal input of master controller 5,
First current transformer 1 is used for detecting the A heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and first
The current signal output end of current transformer 1 is connected with the first heating current signal input of master controller 5,
Second current transformer 2 is used for detecting the B heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and second
The current signal output end of current transformer 2 is connected with the second heating current signal input of master controller 5,
3rd current transformer 3 is used for detecting the C heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and the 3rd
The current signal output end of current transformer 3 is connected with the Acanthopanan trifoliatus (L.) Merr. thermocurrent signal input part of master controller 5,
The control signal outfan of master controller 5 is connected with the control signal input of controlled state indicator light circuit 7,
Master controller 5 is communicated with monitoring terminal by wireless communication line 6；
Each temperature collection circuit 4 include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6,
Resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity
C1, electric capacity C2, electric capacity C3, diode D1, diode D2, diode D3, audion Q1, potentiometer W1, current potential
Device W2, temperature sensor T1, the first constant-current source chip U1 and power amplifier U2；
First constant-current source chip U1 uses LM317 cake core to realize, and power amplifier U2 is OP07 type power amplifier,
Temperature sensor T1 is PT100 type temperature sensor；
The anode of diode D1 is connected with+12V power supply, the negative electrode of diode D1 simultaneously with the 3 of the first constant-current source chip U1
One end of number pin and resistance R1 connects, and No. 4 pins of No. 2 pins of the first constant-current source chip U1 and its are connected, the first perseverance
No. 2 pins of stream source chip U1 are also connected with No. 7 pins of power amplifier U2,
No. 4 pins of the first constant-current source chip U1 and one end of resistance R2, one end of electric capacity C3 and the control of potentiometer W1
Hold together with time connect,
The other end of resistance R2 is simultaneously connected with one end of resistance R3 and No. 1 pin of the first constant-current source chip U1, resistance
The other end of R3 is connected with the other end of electric capacity C3,
One end of potentiometer W1 is connected with one end of resistance R4, one end of the other end of resistance R4 and temperature sensor T1 and
One end of electric capacity C1 and one end of resistance R6 are simultaneously connected with, and the other end of temperature sensor T1 is connected with its adjustable end, and
It is simultaneously connected with one end of one end, one end of resistance R8, the other end of electric capacity C1 and the electric capacity C2 of resistance R7, electric capacity
The other end of C2 is simultaneously connected with one end of the other end, the other end of resistance R8 and the resistance R5 of resistance R7, resistance R5
The other end be connected with the other end of potentiometer W1,
The other end of resistance R3 is connected with the anode of diode D3 and one end of resistance R13, the negative electrode of diode D3 and two
The anode of pole pipe D2 connects, and the negative electrode of diode D2 is same with No. 4 pins of one end of resistance R14 and power amplifier U2
Time connect, another termination power ground of resistance R14；
The other end of resistance R13 is connected with one end of potentiometer W2, and the other end of potentiometer W2 controls end with it and is connected, electricity
The position other end of device W2 is simultaneously connected with one end of one end of resistance R10 and resistance R11, the other end of resistance R10 and electricity
One end of resistance R9 and No. 2 pins of power amplifier U2 are simultaneously connected with, the other end of resistance R11 and one end of resistance R6
Connecting, the other end of resistance R6 is connected with No. 3 pins of power amplifier U2；
No. 6 pins of power amplifier U2 are connected with one end of resistance R12, the other end of resistance R12 and audion Q1
Base stage connect, the emitter stage of audion Q1 is connected with one end of resistance R11, the colelctor electrode of audion Q1 and resistance R1
The other end connect；
One end of resistance R14 is as the temperature signal outfan of temperature collection circuit 4.
In present embodiment, the system of on-line monitoring transformer station of the present invention gas insulated metal enclosed swit chgear heater, have
Two-way temperature acquisition and three tunnels heating current acquisition.Temperature acquisition part uses PT100 temperature sensor, and Acquisition Circuit uses
VI translation circuit, changes the weak voltage on PT100 sensor and is converted to curent change by analog circuit, this mode
Primarily to Anti-interference Design, site environment voltage is high, electromagnetic field intensity, and general Acquisition Circuit is easily subject to extraneous electromagnetic field
Interference, job insecurity, by the design of this analog circuit, it is particularly suitable for this strong-electromagnetic field environment, temperature acquisition is accurate
Stable, provide safeguard for subsequent software analytical calculation.
Detailed description of the invention two: see Fig. 1 to Fig. 4 and present embodiment, present embodiment and detailed description of the invention one are described
The difference of the system of described on-line monitoring transformer station gas insulated metal enclosed swit chgear heater is, described master controller 5
Including resistance R18, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, polar capacitor E1 and single-chip microcomputer U3, and monolithic
The model of machine U3 is C8051F500；
Described controlled state indicator light circuit 7 includes the second constant-current source chip U4, electric capacity C8, polar capacitor E2, resistance
R15, resistance R16, resistance R17, light emitting diode L1, light emitting diode L2 and light emitting diode L3, and the second constant current
Source chip U4 uses AS1117-3.3 cake core to realize；
One end of resistance R18 is connected with+3.3V power supply, and also one end with electric capacity C4, one end of resistance R18 is connected, electric capacity
Another termination power ground of C4, the other end of resistance R18 is simultaneously connected with No. 2 pins and No. 3 pins of single-chip microcomputer U3,
One end of electric capacity C5 is connected with one end of electric capacity C6, one end of electric capacity C6 also with No. 4 pins and No. 5 pipes of single-chip microcomputer U3
Foot is simultaneously connected with, the other end of electric capacity C5 and the other end of electric capacity C6, No. 6 pins of single-chip microcomputer U3 and single-chip microcomputer U3
No. 7 pins be simultaneously connected with, another termination power ground of electric capacity C5；
The positive ends of polar capacitor E1 is simultaneously connected with one end of electric capacity C7 and No. 8 pins of single-chip microcomputer U3, polarity electricity
The other end of the negative polarity end and electric capacity C7 that hold E1 all connects power supply ground；
No. 1 pin of the second constant-current source chip U4 connects power supply ground, and No. 3 pins of the second constant-current source chip U4 connect+5V power supply,
No. 4 pins of No. 2 pins of the second constant-current source chip U4 and its are connected, No. 2 pins of the second constant-current source chip U4 also with electricity
Hold one end of C8, the positive ends of polar capacitor E2, one end of resistance R15, one end of resistance R16 and resistance R17
One end be simultaneously connected with,
Another termination power ground of electric capacity C8, the positive-negative polarity termination power ground of polar capacitor E2, the other end of resistance R15
Being connected with the anode of light emitting diode L1, the other end of resistance R16 is connected with the anode of light emitting diode L2, resistance R17
The other end be connected with the anode of light emitting diode L3,
The negative electrode of light emitting diode L1 is connected with No. 42 pins of single-chip microcomputer U3,
The negative electrode of light emitting diode L2 is connected with No. 41 pins of single-chip microcomputer U3,
The negative electrode of light emitting diode L3 is connected with No. 40 pins of single-chip microcomputer U3,
No. 39 pins of single-chip microcomputer U3 and the temperature signal outfan of a temperature collection circuit 4 connect；
No. 38 pins of single-chip microcomputer U3 are connected with the temperature signal outfan of another temperature collection circuit 4；
No. 37 pins of single-chip microcomputer U3 and the current signal output end of the first current transformer 1 connect；
No. 36 pins of single-chip microcomputer U3 and the current signal output end of the second current transformer 2 connect；
No. 35 pins of single-chip microcomputer U3 and the current signal output end of the 3rd current transformer 3 connect；
No. 46 pins of single-chip microcomputer U3 are connected with the write signal input of wireless communication line 6,
No. 45 pins of single-chip microcomputer U3 are connected with the read signal outfan of wireless communication line 6.
Present embodiment, PT100 type temperature sensor is the three-wire system mode of connection, a termination electricity of PT100 temperature sensor
Resistance one end of R11, one end of connecting resistance R6, one end of connecting resistance R4, and with resistance R5, resistance R9, resistance R10,
Resistance R13 and potentiometer W1, potentiometer W2 and the first constant-current source chip U1 composition PT100 type temperature sensor detection electricity
Road, inputs 3 feet to power amplifier U2, power amplifier by the voltage variety at PT100 type temperature sensor two ends
U2 carries out UI conversion, voltage signal faint for temperature and resistance is converted to current signal, and inputs single-chip microcomputer main control chip
AD conversion input port, carries out conversion Calculation temperature value.System is designed as two-way temperature acquisition, and a road is outdoor environment temperature,
One tunnel is for controlling the temperature inside the box.
The electrical block diagram of described master controller sees Fig. 3, and wherein U3 is main control chip, and its model is C8051F500,
Built-in 64K program storage, built-in 12 bit A/D converters and 8 road AD input interfaces, main control chip completes 2 tunnel temperature
The collection of signal calculates, and completes 3 road heater current collections and calculates, and judges heating according to temperature value and heating current value
Device the most normally works, and by collection real-time data transmission to monitor terminal, field data carries out real-time analytic statistics, it is judged that
Heater duty and heater performance.
Field apparatus contrasts:
System acquisition control box for transformer station inside and out ambient temperature data, when ambient temperature is less than heater starting temperature,
Heater carries out heating work, and native system gathers heater heating current data, sends data to Surveillance center's monitoring software
In, monitoring software passes through analytical calculation, it is judged that heater the most normally works, and judges that heater adds by historical data contrast
Hot property, is analyzed heater heating properties and state, makes early warning in advance, it is to avoid accident occurs.
Surveillance center's monitoring software shows control box for transformer station temperature data and heater heating current data in real time, by each control
Case data processed carry out storing and analytical calculation, make temperature and heating current relationship curve chart, and heater adds thermocurrent and time
Curve chart, heater performance changing trend diagram, every control chamber internal heater is monitored, it is ensured that stable.
As a example by A heat phase, A heat phase device adds thermocurrent and illustrates with temperature curve chart, referring specifically to Fig. 5:
Such as: A heat phase device adds thermocurrent and temperature profile, when control chamber external environment temperature is below 15 DEG C, heater
Working, adding thermocurrent is 9.2A, and heater is working properly always.If control chamber case external environment temperature is less than less than 15
Time, heater current is less than 6A, passes through historical data analysis, it is possible to judge heater operation irregularity, needs to check
Maintenance, it is possible to note abnormalities phenomenon in advance, carries out early warning in advance.
As a example by A heat phase, A heat phase device adds thermocurrent and time graph synopsis, when control chamber case external environment temperature is less than
When 15 DEG C, heater begins to warm up, and during such as temperature greater than or equal to 15 DEG C, heater does not heats.Can be directly perceived by this table
Observe the statistical table annual with adding thermocurrent heater heat time heating time, heater on time is added up, analyzes heater
Heating properties, it is determined that it is the most normal that heater adds thermocurrent.If adding the thermocurrent system of changing can report to the police, prompting pipe
Reason personnel carry out checking maintenance, and elimination accident implies, and ensure that heater normally works.
Claims (2)
1. the system of on-line monitoring transformer station gas insulated metal enclosed swit chgear heater, it is characterised in that it includes that the first electric current is mutual
Sensor (1), the second current transformer (2), the 3rd current transformer (3), two temperature collection circuits (4), main controls
Device (5), wireless communication line (6) and status indicator lamp circuit (7)；
In two temperature collection circuits (4), one of them temperature collection circuit (4) is used for monitoring substation closed composition
The operating ambient temperature of electrical heating apparatus, the temperature signal outfan of this temperature collection circuit (4) and master controller (5)
First temperature signal input connect,
Another temperature collection circuit (4) is used for monitoring outdoor environment temperature, and the temperature signal of temperature collection circuit (4)
Outfan is connected with the second temperature signal input of master controller (5),
First current transformer (1) is used for detecting the A heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and
The current signal output end of the first current transformer (1) is connected with the first heating current signal input of master controller (5),
Second current transformer (2) for detecting the B heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and the
The current signal output end of two current transformers (2) is connected with the second heating current signal input of master controller (5),
3rd current transformer (3) for detecting the C heat phase electric current of transformer station's gas insulated metal enclosed swit chgear heater, and the
The current signal output end of three current transformers (3) is connected with the Acanthopanan trifoliatus (L.) Merr. thermocurrent signal input part of master controller (5),
The control signal outfan of master controller (5) is connected with the control signal input of controlled state indicator light circuit (7),
Master controller (5) is communicated with monitoring terminal by wireless communication line (6)；
Each temperature collection circuit (4) include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6,
Resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity
C1, electric capacity C2, electric capacity C3, diode D1, diode D2, diode D3, audion Q1, potentiometer W1, current potential
Device W2, temperature sensor T1, the first constant-current source chip (U1) and power amplifier (U2)；
First constant-current source chip (U1) uses LM317 cake core to realize, and power amplifier (U2) is OP07 type power amplification
Device, temperature sensor T1 is PT100 type temperature sensor；
The anode of diode D1 is connected with+12V power supply, the negative electrode of diode D1 simultaneously with the first constant-current source chip (U1)
One end of No. 3 pins and resistance R1 connects, and No. 4 pins of No. 2 pins of the first constant-current source chip (U1) and its are connected, the
No. 2 pins of one constant-current source chip (U1) are also connected with No. 7 pins of power amplifier (U2),
No. 4 pins of the first constant-current source chip (U1) and one end of resistance R2, one end of electric capacity C3 and the control of potentiometer W1
End processed together with time connect,
The other end of resistance R2 is simultaneously connected with one end of resistance R3 and No. 1 pin of the first constant-current source chip (U1), electricity
The other end of resistance R3 is connected with the other end of electric capacity C3,
One end of potentiometer W1 is connected with one end of resistance R4, one end of the other end of resistance R4 and temperature sensor T1 and
One end of electric capacity C1 and one end of resistance R6 are simultaneously connected with, and the other end of temperature sensor T1 is connected with its adjustable end, and with
One end of one end of resistance R7, one end of resistance R8, the other end of electric capacity C1 and electric capacity C2 is simultaneously connected with, electric capacity C2's
The other end is simultaneously connected with one end of the other end, the other end of resistance R8 and the resistance R5 of resistance R7, another of resistance R5
End is connected with the other end of potentiometer W1,
The other end of resistance R3 is connected with the anode of diode D3 and one end of resistance R13, the negative electrode of diode D3 and two poles
The anode of pipe D2 connects, and the negative electrode of diode D2 is same with No. 4 pins of one end of resistance R14 and power amplifier (U2)
Time connect, another termination power ground of resistance R14；
The other end of resistance R13 is connected with one end of potentiometer W2, and the other end of potentiometer W2 controls end with it and is connected, electricity
The position other end of device W2 is simultaneously connected with one end of one end of resistance R10 and resistance R11, the other end of resistance R10 and resistance
No. 2 pins of one end of R9 and power amplifier (U2) are simultaneously connected with, the other end of resistance R11 and one end of resistance R6
Connecting, the other end of resistance R6 is connected with No. 3 pins of power amplifier (U2)；
No. 6 pins of power amplifier (U2) are connected with one end of resistance R12, the other end of resistance R12 and audion Q1
Base stage connect, the emitter stage of audion Q1 is connected with one end of resistance R11, the colelctor electrode of audion Q1 and resistance R1's
The other end connects；
One end of resistance R14 is as the temperature signal outfan of temperature collection circuit (4).
The system of on-line monitoring transformer station the most according to claim 1 gas insulated metal enclosed swit chgear heater, its feature exists
In, described master controller (5) includes resistance R18, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, polar capacitor
E1 and single-chip microcomputer (U3), and the model of single-chip microcomputer (U3) is C8051F500；
Described controlled state indicator light circuit (7) include the second constant-current source chip (U4), electric capacity C8, polar capacitor E2,
Resistance R15, resistance R16, resistance R17, light emitting diode L1, light emitting diode L2 and light emitting diode L3, and second
Constant-current source chip (U4) uses AS1117-3.3 cake core to realize；
One end of resistance R18 is connected with+3.3V power supply, and also one end with electric capacity C4, one end of resistance R18 is connected, electric capacity C4
Another termination power ground, the other end of resistance R18 is simultaneously connected with No. 2 pins and No. 3 pins of single-chip microcomputer (U3),
One end of electric capacity C5 is connected with one end of electric capacity C6, one end of electric capacity C6 also with No. 4 pins of single-chip microcomputer (U3) and No. 5
Pin is simultaneously connected with, the other end of electric capacity C5 and the other end of electric capacity C6, No. 6 pins of single-chip microcomputer (U3) and single-chip microcomputer
(U3) No. 7 pins are simultaneously connected with, another termination power ground of electric capacity C5；
The positive ends of polar capacitor E1 is simultaneously connected with one end of electric capacity C7 and No. 8 pins of single-chip microcomputer (U3), polarity
The negative polarity end of electric capacity E1 and the other end of electric capacity C7 all connect power supply ground；
No. 1 pin of the second constant-current source chip (U4) connects power supply ground, and No. 3 pins of the second constant-current source chip (U4) meet+5V
Power supply, No. 4 pins of No. 2 pins of the second constant-current source chip (U4) and its are connected, the 2 of the second constant-current source chip (U4)
Number pin also with one end of electric capacity C8, the positive ends of polar capacitor E2, one end of resistance R15, one end of resistance R16
It is simultaneously connected with one end of resistance R17,
Another termination power ground of electric capacity C8, the positive-negative polarity termination power ground of polar capacitor E2, the other end of resistance R15
Being connected with the anode of light emitting diode L1, the other end of resistance R16 is connected with the anode of light emitting diode L2, resistance R17
The other end be connected with the anode of light emitting diode L3,
The negative electrode of light emitting diode L1 is connected with No. 42 pins of single-chip microcomputer (U3),
The negative electrode of light emitting diode L2 is connected with No. 41 pins of single-chip microcomputer (U3),
The negative electrode of light emitting diode L3 is connected with No. 40 pins of single-chip microcomputer (U3),
No. 39 pins of single-chip microcomputer (U3) and the temperature signal outfan of a temperature collection circuit (4) connect；
No. 38 pins of single-chip microcomputer (U3) are connected with the temperature signal outfan of another temperature collection circuit (4)；
No. 37 pins of single-chip microcomputer (U3) and the current signal output end of the first current transformer (1) connect；
No. 36 pins of single-chip microcomputer (U3) and the current signal output end of the second current transformer (2) connect；
No. 35 pins of single-chip microcomputer (U3) and the current signal output end of the 3rd current transformer (3) connect；
No. 46 pins of single-chip microcomputer (U3) are connected with the write signal input of wireless communication line (6),
No. 45 pins of single-chip microcomputer (U3) are connected with the read signal outfan of wireless communication line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394852.8U CN205562713U (en) | 2016-05-04 | 2016-05-04 | System for gas insulated metal enclosed swit chgear heating device of on -line monitoring transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394852.8U CN205562713U (en) | 2016-05-04 | 2016-05-04 | System for gas insulated metal enclosed swit chgear heating device of on -line monitoring transformer substation |
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| Publication Number | Publication Date |
|---|---|
| CN205562713U true CN205562713U (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394852.8U Expired - Fee Related CN205562713U (en) | 2016-05-04 | 2016-05-04 | System for gas insulated metal enclosed swit chgear heating device of on -line monitoring transformer substation |
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| CN (1) | CN205562713U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085413A (en) * | 2018-07-25 | 2018-12-25 | 重庆骞纳马科技有限公司 | A kind of non-contact type high voltage switchgear safety detecting system and its control method |
| CN111366261A (en) * | 2020-04-21 | 2020-07-03 | 国网黑龙江省电力有限公司牡丹江供电公司 | On-line temperature monitoring device for hydraulic mechanism box of transformer substation |
| CN113890193A (en) * | 2021-09-29 | 2022-01-04 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Working state monitoring method and system for electric tracing system of transformer substation circuit breaker |
-
2016
- 2016-05-04 CN CN201620394852.8U patent/CN205562713U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085413A (en) * | 2018-07-25 | 2018-12-25 | 重庆骞纳马科技有限公司 | A kind of non-contact type high voltage switchgear safety detecting system and its control method |
| CN111366261A (en) * | 2020-04-21 | 2020-07-03 | 国网黑龙江省电力有限公司牡丹江供电公司 | On-line temperature monitoring device for hydraulic mechanism box of transformer substation |
| CN113890193A (en) * | 2021-09-29 | 2022-01-04 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Working state monitoring method and system for electric tracing system of transformer substation circuit breaker |
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Granted publication date: 20160907 Termination date: 20190504 |