TH50396C3 - Measurement of arc defects in the arc zone - Google Patents

Abstract

DC60 (23/05/49) Several methods can be used for arc protection in the arc zone to detect land. Depletion of serial arc And / or measure the defect of Arc in an electric divider In electrical components And / or circuits Glass detector Differential or di / dt probes can be used. To measure the arc in a power divider while a differential voltage detector or a zero sequence voltage detector is Used to measure the serial arc. Differential phase current measurement scheme Can have been It can be used for both electric shunt arc and serial arc. Serial arc can also be Can be measured using a voltage drop system. Or the system can lose power in the line as well. Measurement of the arc in the line. Can be monitored directly. Earth fault detector. Can be combined with these systems One or more For the measurement of ground faults In a circuit that will be protected. System or detector Two or more of the above It can be combined for the arc monitoring and the arc measurement.Multiple methods can be used for arc protection in the arc zone to detect land. Depletion of serial and / or parallel arc in the dash Electrical and / or circuits A differential current detector or a di / dt detector can be used. To measure parallel arc while measuring pressure Derivative power or measure the zero sequence voltage at Has been used to measure serial arc measurements. Derivative phase current measurement schemes can be used for For both parallel and series arcing, series arc can be obtained. Can also be measured using the drop system. Can also be monitored for voltage or line loss. Can be directly inspected, can detect soil defects Have been combined with one or more of these systems For the measurement of ground faults in circuits to be The above two systems or detectors can be prevented. One or more can be obtained for monitoring. Arc and measurement

Claims (5)

1. A system for measuring the defects of the arc in the arc zone for the measurement in the obtained zone. Get designation in an electrical circuit Containing Voltage consolidation device for inclusion All phase voltages of the above circuit Both the source and load side of the aforementioned areas and the comparator for comparison. The sum of the voltages at one end of the ends The above load and origin and the sum Of the voltage at the other end of the end The aforementioned load and source of each phase And for the production of signal variance corresponding to any difference between them 2. Clause 1 system of claim and also consists of Responsive arc detector device To the magnitude of the signal, the aforementioned difference is above the value The starting point was previously defined for the Causes a signal cut. 3. System of claim No. 1, where the device combines strength The aforementioned voltage consists of several matching resistors, each resistor having a first received end. Connection to one end of the load end and the side Origin in the foregoing zones of each phase of the circuit The foregoing And by which the aforementioned comparison device Then there is one input that gets connected to the end that is on it. Skip to the foregoing end of the resistor. The aforementioned combinations that have been connected to the end. The source of each phase and the second input obtained Connected to one end that is opposite to the first said end Then came of the aforementioned matching resistors received. Connection to the load end of each phase 4. The system of claim 1 and also consists of Compensation device for preparing compensation for Circuit in which neuter conductors have higher impedance than phase conductors. Or where neutral conductors share large currents from other branches 5. System of claim 1 and also consist of Derivative washers 6. A system for measuring arc defects in Arc area for the measurement of faults Arc in the defined zone of the assembled electrical circuit With a differential phase current detector consisting of a conductor Have been insulated equally, essentially parallel. For each zone of each phase to be protected by a Measure the aforementioned derivative phase currents, which makes determining It is a protected area made up of the grandmother portion of the body. Conduct the above parallel between two points where two conductors The receiver has been connected together. Pot flow detector The converter receives an inductive connection to the conductor. Each of the above parallel pairs Transformer current detector The above and the aforementioned conductors have been made there Outline and arrange it in such a way that the stream has been sticky. The built-in detector knows the aforementioned current transformers from the conductors. In the detector to know the transformer current mentioned above from another conductor. One of the above to produce the difference current output 7. The system of claim 6 and also contains Derivative arc current meter as well. 8. System of Clause 5 or No. 7 whereby the aforementioned differential arc meter consists of Current detector for the development of current signals at Corresponding to the current at each end of the load end And the aforementioned source side of each phase in the region and the optical collector device connected to the detector As shown above for the reception of the aforementioned stream signal Then and combine the current signal from the source end which has Current signals detect opposite from each other from the load end 9. Acknowledgment of Clause 8 and also contains the Additional currents are detected at each junction within the aforementioned current collector zone, and also combine the Snapshot from the detector knows additional current and the current signal from the body. Check the current at the load end and the source end. 1 0. The arc fault measurement system in the arc fault consists of a differential arc current detector for the Measure line-to-line and earth arc faults conditions and a differential voltage detector for measurements. Arc flaws in series 1 1. System of Clause 10 whereby the measuring device The above derivative voltage arc consists of Zero-sequence voltage arc detector 1 2. System of claim No. 10 and also consists of Differential phase current detector for both measurement of Serial and Parallel Arc Defects 1 3. Arc fault measurement system in the arc region consisting of an arc voltage detector. Support for the measurement of arc defects Derivative and differential phase current detectors for probes. Measure both serial and parallel arc defects 1 4. System of claim 13, whereby the detector The above-mentioned derivative voltage arc is composed of Zero-sequence electric arc voltage detector 1 5. A system for measuring arc defects in the arc region consisting of A differential current detector for condition measurements Line-to-line and earth arc and. Derivative phase current detector for both measurements Serial and parallel arc faults 1 6. Local arc fault detection system. Arc of electrical circuits Containing Voltage sensing device for voltage sensing Electricity in the conductors of the electrical circuit mentioned at both The source and load side of the aforementioned zone and the torsion measuring device that is connected to The aforementioned detection devices for signaling The difference is that corresponds to any difference between the voltages. The sky at the source and load end of the aforementioned areas 1 7. The system of claim No. 16 and also consists of Line impedance compensation device for eliminating the impedance effect. Wires caused by voltage drop from a difference signal. As already mentioned 1 8. System of Clause 15 and also consists of Network stabilized the impedance of the line that has been connected to the Both the source and load side of the aforementioned zones 1 9. Arc defect measurement system in the arc field for the measurement of arc defects. In a defined nork area of an electrical circuit composed of a current transformer being connected to the line. Conductors of the aforementioned electrical circuits for generating Current signal corresponding to the current in the conductor. The arc meter has been connected to the transformer. The above current for the pin change measurement Current due to faults of series arc at The above-mentioned conductive wires and the welded wire impedance stabilization networks Connected to the source end and load side within the resulting zone. Obtain the designation of the aforementioned conductors. 2 0. Arc defect measurement system in the arc region for the measurement of arc defects in Defined arc zone of an electrical circuit comprising a voltage sensing device connected to the end. Source and load side within one zone of the loop conductor line The aforementioned electric races The detector knows the current that has been welded. To the conductor The foregoing of the aforementioned electrical circuits adjacent to The source end of the aforementioned fields and the arc power detectors that have been connected made Work with the above voltage detectors and with the Check the above current for the measurement of the loss. The power is lost through the conductors in the above-mentioned fields. With serial arc in the aforementioned string within the aforementioned field 2 1. A system for measuring the defects of the arc in Arc area for the measurement of faults of Arc in the designated arc zone of Arc in a defined arc zone of an electrical circuit consisting of A voltage sum device for a voltage sum. Electricity for the inclusion of all phase voltages of the loop. As mentioned above, at both the source end and the load side. Of the aforementioned areas Comparator for comparing the sum of Voltage at one end of the load and source end The foregoing generator and the sum of the end voltages The other end of the aforementioned load and source end And of each phase and for producing different signals This corresponds to any difference between them. A differential arc current detector and an earth fault device consisting of Check current transformers that have been connected as active. With conductors and neutrals of the above circuit Then for measuring the difference of the current between And cause the corresponding earth fault signal 2 2. System for fault detection of The arc in the wiring of an electrical circuit consisting of A device for monitoring the voltage difference at a weak point. Connect the above wires and equipment for generating the signal. Corresponding arc defects 2 3. Clause 22 system whereby the said device It is made up of two toroidal coils with the first being connected at the connection point at As mentioned above, and the second coil for inducing the Defects of the arc mentioned above. And by which the coil The second is for causing the fault signal of the The aforementioned arc And by the aforementioned secondary winding And get connected in the monitoring network 2 4. System of Clause 22, whereby the It consists of a light emitting diode (LED) that is connected to the aforementioned cable connections to be monitored and a light-responsive device from the above LEDs for the generation of signal strength. defective Of the arc and optical switch in response to the above LEDs for the Corresponding arc defects 2 5. System of Claims Article 24 by which the said switch It has been connected in the network for surveillance. Checks multiple wiring points and contains equipment for Identification of any of the foregoing points where the arc failure occurred in response to the signal. Consistent Arc Defect (25 Claims, Drawing-Image)