Investigatio de Detectio et Replenendo Apparatis pro SF6 Circuitis Interruptoribus sine Disassembly

Circuitus interruptores alta tensio adhibentur ut currentes oneris in operatione normali iungantur vel intercidentur. Cum faulta circuitus brevis aut supercarga gravis in apparatu electrico vel lineis accidit, dispositivum protectionis relais eis imperat ut automatica et celeriter currentem faultae intercipiant, isolantes apparatum vel lineas cum faulta circuitus brevis, ne ambitus accidentis amplificetur.

Per totam progressionem circuitorum interruptorum alta tensio, a circuitis interruptoribus plenis oleo et compresso aere ad circuitos interruptores SF₆ et vacui, unusquisque gradus fuit magna innovatio principiorum arcus extinguendi. Inter eos, circuiti interruptores SF₆ habent praestantias sicut potentia interruptiva fortis, longa vita electrica, altum nivellum insulantis, et bona perfomans claudendi, et maxime adhibentur in mediis alta tensio hodie.

Circuiti interruptores SF₆ (hic deinceps nominati circuiti interruptores) sunt apparatum importantia in transmissione potestatis alta tensio. Insulantis et interruptivae praestantiae sunt indicia technica principalia ad circuitos interruptores aestimandi. Circuiti interruptores SF₆ sunt genus circuiti interruptoris utentes medium insulantem. Cum circuitis interruptoribus aere, hi pertinent ad circuitos interruptores flatus gas, et confidunt in gas SF₆ pro insulando. Gas SF₆ habet thermiconductivitatem altam, potest recombini post decompositionem, et non continet insulantia nociva sicut carbo. Quando contentus aquae strictissime contineatur, producta decompositionis non sunt corrosiva. Insulantis praestantia gas SF₆ non declinat per usum, itaque bonam praestantiam insulantem manet etiam post interruptiones multas.

Gas SF₆ purus est medium arcus extinguendi excellentissimum. Propter suam praestantiam arcus extinguendi et insulantem superiorem, secundum se applicavit ad apparatus electricos alta tensio et extra alta tensio in saeculo 20. Hodie, SF₆ est medium insulantem gas optimale, praesertim in ambitu alta tensio et extra alta tensio, ubi est unicum medium insulantem et arcus extinguendi. Ut stabilis praestantia interruptiva circuitorum interruptorum tueatur, gas SF₆ intra circuitos interruptores requiritur ut habeat puritatem 99.99%.

Quia camera gas circuitorum interruptorum SF₆ est magnum, sunt multae tubi coniunctivi, et sunt numerosi superficies claudendi intra circuitos interruptores. In operatione, questiones sicut pressura SF₆ insufficiens possunt accidere propter problemata claudendi vel mutationes temperaturae. In applicationibus practicis, propter factores sicut vibrationes operationales et claudendi mala, probabilitas effluxus gas in circuitis interruptoribus excedit annualem ratam effluxus 1% a fabrica constitutam. Itaque, circuiti interruptores saepe refecti debent esse gas.

Hoc articulus introducit novum genus detectionis, repletionis, et supplementi gas circuiti interruptoris SF₆ non disiecti. Id potest per instrumenta facere detectionem micro-aquae circuitorum interruptorum et calibrationem relais densitatis sine intermissione potestatis. Potest etiam expellere aerem, aquam, et impuritates in tubis repletionis gas durante processibus repletionis et supplementi gas. Praeterea, potest automatice solvere pressuram et dare alarmam quando pressura gas excedit valorem ratum durante processu repletionis gas.

1 Situatio Actualis in Sina

Hodie, dispositiva domestic supplendi gas circuitorum interruptorum solent valvam combinatam in circuito interruptore instaurare. Haec valva combinata, quae constat corpore valvae, interface supplendi gas, interface circuiti interruptoris, et interface relais densitatis, potest connecti ad micro-metrum aquae et calibrator relais densitatis. Hoc efficaciter solvit questionem necessitatis intermitterendi potestatis quando mensuratur contentus micro-aquae circuiti interruptoris et calibratur relais densitatis, itaque augmentat efficientiam operis et minuit damnum circuiti interruptoris in disiectione.

Tamen, id non solvit problemam aeris, aquae, et impuritatum in tubis repletionis gas intrantium in circuitum interruptorem durante processibus repletionis et supplementi gas. Durante operationibus repletionis et supplementi gas circuitorum interruptorum existentium, cylindrus repletionis gas SF₆ directe connectitur ad circuitum interruptorem per valvam reductoris pressurae et tubum supplendi gas. Ita, gas SF₆ trahit aerem, aquam, et impuritates ex tubo in circuitum interruptorem. Hoc reducit puritatem gas SF₆, degradat praestantiam insulantem eius, damnat circuitum interruptorem, et breviat vitam servitii eius.

Ut dispositivum protectivum systematis potestatis, regulae et requirementa stricta imposita sunt super gas SF₆ in apparatus electricis alta tensio. Quodcumque tempus contentus aquae in circuitis interruptoribus SF₆ attingit certum nivellum, potest ad consequentias adversas graves ducere. Aqua potest facere ut producta decompositionis gas SF₆ subeant reactiones chemicas, generantes compagines venenatas; potest causare corrosionem chemica apparatorum; est detrimentosa insulanti apparatorum; afficit praestantiam interruptivam commutatorum; et minuit praestantiam mechanicam commutatorum.

Hodie, quando mensuratur micro-aqua et calibratur relais densitatis in circuitis interruptoribus, circuitus interruptor debebit disiecti post intermissionem potestatis. Hoc non solum impactat productionem sed etiam afficit perfomansem claudendi circuiti interruptoris. Disiectio frequens etiam laedit accuratelem relais.

2 Principium Operativum et Design Structurale

Dispositivum detectionis, repletionis, et supplementi gas circuiti interruptoris SF₆ includit corpus valvae, valvam self-sealing, valvam self-controlled back-pressure, et commutatorem controlis, ut ostenditur in diagrammate structurae. Hoc dispositivum organic integrate corpus valvae cum valva self-sealing, valva self-controlled back-pressure, et commutatore controlis. Unum extremum corporis valvae est fixe instructum cum tabula connectionis circuiti interruptoris, alterum extremum est fixe instructum cum commutatore controlis. Corpus valvae est etiam fixe instructum cum valva self-sealing, valva self-controlled back-pressure, et interface relais densitatis. Commutator controlis regit aperturam et clausuram harum valvarum.

Dispositivum detectionis, repletionis, et supplementi gas circuiti interruptoris SF₆ introductum in hoc articulo, organic integrate corpus valvae cum valva self-sealing, valva self-controlled back-pressure, et commutatore controlis, integrat mensuram micro-aquae, calibrationem relais densitatis, et operationes repletionis et supplementi gas circuitorum interruptorum sine intermissione potestatis. Antequam operationes repletionis et supplementi gas, id potest automatica expellere aerem, aquam, et impuritates in systemate supplementi gas. Durante operationibus repletionis et supplementi gas circuiti interruptoris, id potest assequi detectionem pressurae et alarman solutio pressurae. Id est applicabile ad circuitos interruptores SF₆ importatos supra 110 kV, circuitos interruptores FXT11 Alstom Franciae, et circuitos interruptores SF₆ domesticos supra 110 kV. Id sustinet altam pressuram, ab 0.5 ad 16 MPa, et est tutum et fidum.

Gradus Principalis Operationis Dispositivi Detectionis, Repletionis, et Supplementi Gas Circuiti Interruptoris SF₆

• Remove Impure Gas: Connect the SF₆ gas cylinder to the self-sealing valve of this device through a pressure-reducing valve, a gas-supplementing hose, and a connector. Close the control switch and open the valve of the SF₆ gas cylinder. SF₆ gas enters the device through the gas-supplementing hose. At this time, impurities such as air in the pipe also enter the circuit breaker along with the SF₆ gas. The gas in the device is a mixture of SF₆ gas and air impurities. When the pressure in the device exceeds the set pressure of the self-controlled back-pressure valve, the self-controlled back-pressure valve automatically opens and discharges gas for 8-10 seconds. During this exhaust process, all the air and impurities in the entire system are removed. Then, close the valve of the SF₆ gas cylinder. When the pressure in the system is consistent with the set pressure, the self-controlled back-pressure valve automatically closes, completing the air and impurity removal operation. At this point, the purity of the SF₆ gas in the system is the same as that in the gas cylinder, and it is qualified gas.

• Gas-Filling and Pressure-Supplementing: With the entire system filled with pure SF₆ gas after the impurity removal process, open the control switch of this device, and then open the valve of the SF₆ gas cylinder to supplement gas to the circuit breaker. When the pressure in the circuit breaker exceeds the pressure set by the self-controlled back-pressure valve, the self-controlled back-pressure valve automatically opens, alarms, and discharges gas. At this time, close the valve of the SF₆ gas cylinder. When the pressure reaches the set value, the self-controlled back-pressure valve automatically closes, completing the gas-supplementing operation. After the operation is completed, remove the connector connected to the gas cylinder from the self-sealing valve of this device.

• Automatic Alarm and Pressure Control: During the gas-filling process, the self-controlled back-pressure valve plays a role in monitoring the pressure. Once the pressure exceeds the set value, it will automatically open, alarm, and discharge gas to ensure that the pressure in the circuit breaker does not exceed the safe range.

• Gas-Supplementing and Pressure Measurement: After the gas-supplementing operation, the pressure in the circuit breaker can be monitored to ensure that it reaches the required value.

When performing micro-water measurement, connect the micro-water measuring instrument to the self-sealing valve. Open the switch of the micro-water measuring instrument, allow the gas in the system to enter the micro-water measuring instrument, then close the switch of the measuring instrument for detection. After the detection, remove the micro-water measuring instrument to complete the micro-water measurement operation. There is no need to cut off the power during the detection process.

When performing density relay calibration, close the control switch of the device, connect the density calibrator to the self-sealing valve for calibration work. After the work is completed, remove the density calibrator and open the control switch. There is no need to cut off the power during the detection process.

The non-disassembly SF₆ circuit breaker detection, gas-filling and gas-supplementing device integrates micro-water measurement, density relay calibration, and gas-filling and gas-supplementing operations of the circuit breaker through instruments without power outages. Before gas-filling and gas-supplementing operations, it can automatically remove air, moisture, and impurities in the gas-supplementing system. During the gas-filling and gas-supplementing operations of the circuit breaker, it can achieve pressure detection and pressure-relief alarm. It is convenient and quick to operate and does not affect the normal operation of the circuit breaker.

3 Conclusion

The non-disassembly SF₆ circuit breaker detection, gas-filling and gas-supplementing device can completely remove air, moisture, and impurities in the gas-supplementing pipe and the system before gas-supplementing for the circuit breaker. Moreover, during the gas-filling process, when the gas pressure in the system reaches the rated value, it can automatically exhaust gas and alarm. This device is equipped with a system control switch, enabling micro-water measurement and density relay calibration operations without power outages. It is convenient and quick to operate and does not affect the normal operation of the circuit breaker. It is applicable to imported SF₆ circuit breakers with a voltage above 110 kV, Alstom FXT11-type circuit breakers from France, and domestic SF₆ circuit breakers with a voltage above 110 kV. It can withstand high pressure, ranging from 0.5 to 16 MPa, and is safe and reliable.