• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    MEASURING DEVICE TO TEST AN ELECTRIC BREAKER. The present invention relates to a measuring device (10) for testing an electrical circuit breaker (1). The measuring device (10) comprises a current generating unit (12) which is shaped to generate a measuring current for a measurement of the passage of a switching contact (5) of the circuit breaker (1). In addition, the measuring device (10) comprises a measuring unit (13) for capturing a measurement signal at the circuit breaker (1), a power supply unit (15) for supplying a control drive (6) of the circuit breaker of potential (1) with electrical energy and a power unit (14) with a timer (18). The control unit (14) is able to supply a signal to open or close the circuit breaker (1) via the control output (19), to activate the control (6), and to determine a chronological switching behavior of the circuit breaker (1) depending on the measurement signal. In addition, the control unit (14) is designed to determine, with the circuit breaker (1) closed, the resistance of the switching contact (5) depending on the measuring current and the measuring signal.
    公开号:BR102013010775B1
    申请号:R102013010775-1
    申请日:2013-04-30
    公开日:2020-11-17
    发明作者:Ulrich Klapper
    申请人:Omicron Electronics Gmbh；
    IPC主号:
    专利说明:

    [0001] The present invention relates to measuring devices for testing an electrical circuit breaker, especially for testing electrical circuit breakers in installations that generate and transfer electricity after the circuit breaker is started or overhauled.
    [0002] Circuit breakers, which are also called high voltage switches or circuit breakers, are special circuit breakers that are shaped for intense currents. In technical power plants, for example, generating or transferring electric power plants, circuit breakers switch not only the service current, but, in the case of failures, also currents under high overload or short-circuit currents. circuit. Circuit breakers are used both to activate these currents and also to disable currents. A potential commonly comprises a switch contact and a control drive that mechanically drives the control contact. The control drive, for example, includes spring or compressed air drives that accumulate electrical energy that will be used for the fast switching of the circuit breaker. The molar or compressed air drives can, for example, be prestressed with electric drives or can be "charged". The release of the accumulated mechanical energy for switching the switch contact can be done through the so-called trip coils that are electrically driven. In electrical installations there is usually a station battery that provides a continuous voltage (DC voltage) between 48 and 200V in order to supply power to the trip coils. To open or close, then only a potential-free relay contact is required. In operation, the controls for opening and closing generally originate from protective relays or the conductive technique.
    [0003] In the test of an electrical circuit breaker, a so-called microohm test is normally carried out, in which, with the switch contact closed or the resistance present in the circuit breaker, the measurement is carried out through a predetermined current fed. The predetermined current can be several hundred amps, for example, 200A. In addition, in the test of the electrical circuit breaker, a so-called time test (Timing-Test) can be carried out in which a switching duration that the circuit breaker needs is captured so that after applying a control, this control can be carried out. In addition, a so-called loss factor test or tangential-Delta test can be performed when the circuit breaker is in a grounded housing, a so-called tank. The loss factor test will also be referred to as the "Dead Tank Test".
    [0004] To perform the time test, control orders must be programmed to open and close the circuit breaker. The trigger coil therefore needs a certain amount of energy. According to the state of the art, this energy either originates from the battery of the station or other device that during the test provides the necessary direct current. Tests are also carried out, in which the continuous voltage is reduced below the nominal value in order to test whether the circuit breaker operates perfectly also with reduced voltage. This test is also called an undervoltage test. The power supply unit can also be used to recharge the energy accumulator in the control operation of the circuit breaker. This is verified by the application of an alternating voltage (AC voltage) or DC voltage, usually in the range of 48V DC to 230V nominal AC.
    [0005] To perform the tests described above, different devices are commonly used, which in sequence will be connected with the circuit breaker to carry out the corresponding tests, and the power supply unit, in some tests, can also be used simultaneously.
    [0006] It is an objective of the present invention, therefore, to offer a measuring device with which an electrical circuit breaker can be tested reliably and more efficiently than in the state of the art. In accordance with the present invention, a device for testing an electrical circuit breaker comprising an electrical current generating unit, a measuring unit, an electrical supply unit, a control output and a control unit is offered.
    [0007] The current generating unit is designed to generate a measuring current for a passage measurement of a switch contact of the circuit breaker and can be coupled with the circuit breaker to supply the measurement current in the circuit breaker. In the context of this invention, the passage measurement designates a measurement that indicates at least whether the switching contact of the circuit breaker is activated or not. This can, for example, be determined by the fact that - by means of a measuring unit described below - a voltage drop is fixed through the switch contact. When the voltage drop falls below a predetermined value, it will be determined that the switch contact is activated. Alternatively, the measurement current flowing through the circuit breaker can also be determined and the switch contact can be designated as closed as soon as a predetermined current intensity is exceeded. Alternatively, a current may also be attempted to be applied to the contact. If this is possible, the switch will be closed and if it is not possible, the switch will be open. The measuring unit can be coupled with the circuit breaker and is able to register a measurement signal on the circuit breaker. The measurement signal can cover, in particular, a voltage drop above the switch contact of the circuit breaker.
    [0008] The power supply unit is designed to supply a circuit breaker control drive with electrical energy that selectively opens or closes the switching contact of the circuit breaker. As already described above, the circuit breaker control drive can comprise an energy accumulator for activating the switch contact with, for example, a molar drive or a gas drive. In addition, the control drive can include an engine to protect the spring or compress the gas, that is, to "charge" the energy accumulator. The power supply unit supplies this motor, for example, with electrical energy. The circuit breaker control drive can alternatively also cover, for example, a capacitor that accumulates electrical energy in order to provide sufficient energy for opening or closing the electromechanical contact of the circuit breaker switch. In this case, the power supply unit is in a position to supply this condenser with electrical energy.
    [0009] The control output can be coupled with the circuit breaker control drive, being shaped to release signals to open and / or close the circuit breaker. The circuit breaker may, for example, have release elements or release coils that are operated with a continuous voltage, for example, 200V in order to initiate the opening or closing of the circuit breaker switching contact. The control output offers corresponding control voltages. Alternatively, the control drive can be activated via a control or a control message according to IEC 61850 to open or close the circuit breaker. In this case, the control output offers corresponding control messages according to IEC 61850. In this way, the measuring device can directly activate the circuit breaker or additional components and the performance of the circuit breaker test can be simplified.
    [00010] The control unit comprises a timer to be able to accurately record chronological events. The control unit is designed to release, through the control output, a signal to open or close the circuit breaker and to determine a chronological computer behavior of the circuit breaker depending on the measurement signal. For example, the control unit, through the timer, will be able to measure the time that passes between the release of the signal to open or close the circuit breaker and the effective opening or closing of the circuit breaker. With the circuit breaker closed, the control unit is also able to terminate the resistance of the switching contact depending on the measuring current and the measuring signal.
    [00011] The measuring device may include a housing in the form of a portable unit in which at least the current generating unit, the measuring unit, the power supply unit, the control output and the control unit are integrated. In this way, with a measuring device, both a timing test and a Microohm test of the circuit breaker can be performed. In this case, components such as, for example, the current generating unit and the measuring unit, can be used together with what is possible to save costs for the measuring device. In addition, after the measuring device is attached to the circuit breaker, both measurements or testing can be carried out without the need for new wiring. In this way, the test of the electrical circuit breaker can be performed more efficiently. As the measuring device additionally comprises the power supply unit for the control drive, the circuit breaker test can be carried out regardless of whether a corresponding power supply unit for the circuit breaker control drive is present or not. If a corresponding power supply is present on the site, for example, a station battery or a corresponding current coupling, this power supply can be used and, therefore, eventually also tested for its functional capacity.
    [00012] As described above, the circuit breaker can cover the motor to achieve a spring or to compress a gas or a condenser that can be charged. In this way, an energy accumulator can be formed that provides the effective energy for activating the switching contact. For example, by means of triggering coils, a control for the commutator will be routed in the effective commutation in order to make a commutation, the energy of the energy accumulator being used to activate the switching contact. Then the energy store will be recharged. According to one embodiment, the energy supply unit supplies the energy to the energy accumulator. In addition, the measuring device can be prepared to offer an electrical potential for controlling the triggering devices through the control output, with which signals to open and / or close can be directed to the triggering devices of the circuit breaker control drive. the breaker. Due to the fact that the measuring device supplies the energy to charge the energy accumulator of the circuit breaker control drive and for the activation of the triggering device, the circuit breaker can be operated and tested with the medium of the measuring device without additional supply systems. energy.
    [00013] According to one modality, the measurement unit is configured to record a measuring signal path. Depending on the measuring current and the path of the measuring signal, the control unit is able to determine a resistance path of the switch contact, for example, during a closing or opening process. In this way, it is possible to determine and test not only the transition resistance of the switching contact in the closed state, but also a change in the resistance of the switching contact during the opening or closing of the switching contact. Based on this information, for example, it becomes possible to test a state of wear and an ordered functional capacity of the switching contact.
    [00014] In another embodiment, the measuring device comprises a high voltage generating unit that is equipped to generate a high voltage for a loss factor measurement. In addition, the measuring device may comprise a loss factor measuring device that is shaped to determine a breaker loss factor depending on high voltage. The loss factor measuring device can, for example, cover a loss factor measuring bridge with which it is supplied with high voltage, for example, up to 12kV, for a test coupling for the capacitive realization of a grounded housing in which the circuit breaker is integrated. The loss factor measuring device tests, for example, to what extent the capacity of the capacitive realization deviates from an ideal or required capacity. Such a deviation is also referred to as a Power Factor, Dissipation Factor or Tanges-Delta. This information is useful for determining the status of the achievement. Circuit breakers in a grounded housing will also be referred to as Dead Tank Circuit Breakers. By combining the circuit breaker test with the measurement of the loss factor, a global unit that consists of the circuit breaker and the grounded housing can be tested, this test being viable in a simple and efficient way.
    [00015] In particular, the measuring device may include a housing in the form of a portable unit, in which the current generating unit, the measuring unit, the power supply unit and the control output are contained. The power supply unit can also be used to supply the high voltage generating unit and the loss factor meter. In this way, circuit breakers that are housed in a grounded housing can be tested with just one measuring system. Furthermore, by using the current generating unit to supply the switch during the test and to supply the high voltage generating unit, they can be used in a housing with components such as, for example, a switching network component, but especially also a potential booster together, with which the costs and weight and volume of the measuring device can be reduced.
    [00016] According to the present invention, a measuring device for testing an electrical circuit breaker is also offered, comprising a current generating unit, a measuring unit, a control output and a control unit with a timer. The current generating unit is designed to generate a measuring current for a passage measurement of a switching contact of the circuit breaker, and can be coupled with the circuit breaker in order to supply the measuring current in the same circuit breaker. The measuring unit can be coupled with the circuit breaker and is able to register a measurement signal, for example, a voltage drop through the circuit breaker switching contact on the circuit breaker itself. Through the control output, signals can be issued to open and / or close the circuit breaker. For this purpose, the control output can be coupled with a circuit breaker control drive. The control unit is capable of releasing a signal through the control output to open or close the circuit breaker and determine, through the timer, a temporal switching behavior of the circuit breaker depending on the measurement signal. The signal that is emitted by the control unit through the control output to open or close the circuit breaker, comprises a control message according to the IEC 61850 standard. This IEC 61850 standard describes busbars and protocols that are used in technical power installations. as, for example, substations to transmit controls, for example, the so-called Goose messages or to carry data or data streams (IEC 61850-9-2). Goose controls can, for example, be used to transmit controls to open or close circuit breakers. In this way, the measuring device is able, when testing or examining a circuit breaker, to produce these controls itself to open or close the circuit breaker, so that no additional components are needed to test the circuit breaker.
    [00017] According to one modality, the control unit is also configured to receive a signal from an auxiliary contact of the circuit breaker. The auxiliary contact signal shows a progress of opening or closing the circuit breaker. Depending on the measurement signal and the auxiliary contact signal, the control unit is in a position to determine the switching time of the circuit breaker. The signal from the auxiliary contact of the circuit breaker can be transmitted via a message in accordance with IEC 61850 normal from the circuit breaker to the control unit, or can be consulted by the control unit of the circuit breaker. Through the information on the switching progress, the temporal behavior of the circuit breaker switching can be recorded and tested in detail.
    [00018] Although the special characteristics, described in the synopsis above, were detailed in connection with special modalities, it is evident that the characteristics of the described modalities can be randomly combined.
    [00019] In the following, the present invention will be explained in detail with reference to the drawing.
    [00020] Fig. 1 shows a measuring device according to an embodiment of the present invention, in connection with a circuit breaker.
    [00021] Fig. 2 shows another embodiment of a measuring device in accordance with the present invention.
    [00022] In the following description of different modalities, direct connections or couplings between functional blocks, devices, components or physical or functional units shown in the Figures or described here can be made, which can also be done through an indirect connection or a coupling . Identical reference numbers in the different Figures designate similar or identical components. In addition, it is clear that the characteristics of the different modalities as an example described herein can be randomly combined with each other.
    [00023] Fig. 1 shows a circuit breaker 1, a measuring device 10 and an evaluation device 40, a so-called master device or a base station. Circuit breaker 1 comprises a switch contact 5 that selectively produces or interrupts an electrical connection between two lines 2, 3, for example, high voltage lines. The switch contact 5 is integrated in a housing 4. The circuit breaker 1 also comprises a control drive 6 that mechanically activates the switch contact 5 through a mechanical coupling 7. The control drive 6 can comprise mechanical or electrical energy accumulators and can be operated via trigger elements to provide the mechanical energy to open or close the switch contact 5 on the mechanical coupling 7. The energy accumulator of the drive control unit 6 can, for example, comprise springs that can be desired by means of an electric motor and, by means of firing coils, can be so triggered that in the distance they transfer mechanical energy through mechanical coupling 7 to the switching contact 5 Alternatively, the energy accumulator can comprise a gas drive, in which gas is compressed and through a trigger mechanism can be expanded. By expanding the gas, the mechanical drive 7 can be operated to operate the switching contact 5. In addition, the control drive 6 can comprise an electric energy accumulator that is charged with a predetermined amount of energy in order to release this amount of energy in a short space of time through an electromechanical transformer for operation of switch contact 5. To charge the energy accumulator of control drive 6, control drive 6 will be supplied with electricity via a line 30, for example, in the 230V alternating voltage. To operate the trigger elements of the control drive 6, that is, to activate a procedure to open or close the switching contact 5, a control signal from a control unit 14 of the device will be transmitted to the control drive 6 meter 10, which is an effect via a line 31. The control unit 14 obtains the necessary energy from a power reserve unit 15 of the meter device 10 via a line 29. The control signal can, for example, be a DC voltage signal, for example 200V voltage, with which the trigger elements of the control drive 6 can be released. Alternatively, line 31 can comprise a digital data connection, through which the The control for the triggering of the trigger elements of the control drive 6 in the form of digital telegrams, the so-called Goose controls, is transmitted, for example, according to the IEC 61850 standard.
    [00024] The switching contact 5 of circuit breaker 1 can, for example, be arranged at a predetermined height, for example, at a height of 6m in an isolated support, and can be connected with lines 2, 3. Alternatively, circuit breaker 1 can cover a grounded housing 8 that has isolated passages 9, through which lines 2, 3 are conducted to switching contact 5.
    [00025] The measuring device 10 comprises a housing 11, in which is integrated a current generating unit 12, a measuring unit 13, the control unit 14 and the power supply unit 15. The current generating unit 12 is formed to generate a measuring current for a passage measurement of the switching contact 5 of circuit breaker 1, being able to offer a measuring current of preferably one hundred amperes or more. In order to be able to offer a metering current with high energy for a short time, the measuring device 10 can also cover a capacitive energy accumulator 21 which is coupled with the current generating unit 12 in order to offer for the current generating unit 12, for a short time, greater volume of energy than is available through a power supply coupling 20 of the measuring device 10. The current generating unit 12, via connections 32, 33, is so coupled with the circuit breaker 1 that a measuring current can be conducted from the current generating unit 12 through the switching contact 5 of the circuit breaker 1. The measuring unit 13 is so coupled with the circuit breaker 1 via connections 34, 35 that the measuring unit 13 can receive a measurement signal at circuit breaker 1, for example, a voltage drop across switching contact 5.
    [00026] The control unit 14 is connected with the current generating unit 12, with the current unit 13 and via a control output 19 and connection 31 is connected with circuit breaker 1. In addition, the control unit 14 comprises a timer 18 for controlling with chronological precision and for recording. In this way, the control unit 14 is suitable for performing a so-called chronometric test and a dynamic resistance measurement of the circuit breaker 1. In this case, the control unit 14 controls the circuit breaker to open or close the switching contact 5. Via the signals of measurement unit 13, control unit 14 determines the chronological switching behavior of circuit breaker 1, for example, a period of time between forwarding a control to open switching contact 5 and the time when the connection via switching contact 5 is effectively interrupted. In addition, the control unit 14 can receive signals from auxiliary contacts of circuit breaker 1, for example, through connection 31, in order to determine and record additional information about the chronological path of the switching behavior of circuit breaker 1. The information determined by the control unit control 14 regarding the behavior of the circuit breaker switch 1 can be transferred, for example, to the evaluation device 40. The transfer can, for example, be carried out using a special cable for data transmission, in digital form or, for example , as digital data via a power supply cable 36 that couples the measuring device 10 with a power supply network 37 with which the evaluation device 40 is also coupled. Processes for transferring digital information via supply lines are known in the state of the art, for example, with the keyword Power Over Ethernet (Force Via E thernet) or Power Line Communication.
    [00027] When circuit breaker 1 - as already described above - is integrated in a grounded housing 8, when high voltage lines 2, 3 through passages 9 are conducted inside the grounded housing 8, with the measuring device 10 and with a loss factor measuring device 16 and a high voltage generating unit 17 can measure the loss factor in order to assess the state of the passages 9. For this purpose, a voltage will be generated in the power supply unit 15 and through the high voltage generating unit 17 it will be transformed into a high voltage of several kilovolts, for example, in the 2-12kV range, being conducted through a connection 38 until the passage 9. For example, with a factor measuring bridge of loss in the loss factor 16 measuring device, via line 39 can be tested in a test coupling of the passage 9 in which the extension approaches the capacity of the capacitive passage 9 of an ideal capacity for starting from this the ability to be able to determine the status of the passage 9.
    [00028] When switching contact 5 of circuit breaker 1 is closed, the resistance of the switching contact can be determined depending on the measuring current, offered by the current generating unit 12, and the voltage drop determined by the measuring unit 13, being able to this determination can be made through switch contact 5, and this is called the Microohm measurement. Thus, for example, in one step, a wear state of the switching contact 5 and a functional capacity of the circuit breaker 1 can be achieved with the measuring device 10 without further cabling.
    [00029] In summary, with the measuring device 10 a comprehensive test of circuit breaker 1 is possible, which especially comprises a timer test, a Microohm test and a loss factor test. As the measuring device 10 provides all the necessary signals for the testing and operation of the circuit breaker 1, especially the measuring current, control signals, supply voltages and high voltage, no additional components are required for the testing of the circuit breaker 1.
    [00030] Fig. 2 presents a measuring set 50 comprising the current generating unit 12 described above, the measuring unit 13, the control output 19 and the control unit 14 with timer 18. The current generating unit 12 and the measurement unit 13 correspond to the components described in Fig. 1 and therefore will not be described in detail here again. The control unit 14 is able to supply through the control output 19, a signal to open or close the circuit breaker 1 and to determine a chronological switching behavior of the circuit breaker depending on the measuring signal of the measuring device 13. The signal which is provided by the control unit via control output 19 to open or close the circuit breaker, is a control communication in accordance with IEC 61850. In addition, the control unit may be able to receive a signal from a auxiliary contact of circuit breaker 1 which indicates a progress of opening or closing circuit breaker 1 and which also, via a message in accordance with IEC 61850, is transferred from circuit breaker 1 to control unit 14. As the measuring device 50 is directly suitable for transmitting and receiving controls and messages according to IEC 61850, circuit breakers, controlled according to IEC 61850, can be operated and tested without components additional entities directly by the measuring device 50.
    权利要求:
    Claims (11)
    [0001]
    1. Measuring device for testing an electrical circuit breaker, comprising - a current generating unit (12), which is shaped to generate a measuring current for a measurement of the passage of a switching contact (5) of the circuit breaker (1), - a measuring unit (13) that can be coupled with the circuit breaker (1) and which is shaped to capture a measurement signal at the circuit breaker (1), characterized by the fact that it also comprises - a power supply unit (15) which is configured to supply a control drive (6) to open or close the circuit breaker (1) with electrical energy, - a control output (19) that can be coupled with the control drive (6) of the circuit breaker (1) and which is shaped to emit signals to open and / or close the circuit breaker (1), and - a control unit (14) with a timer (18) which is shaped to emit, through the control output (19), a signal to open or close the circuit breaker (1) and to determine a circuit behavior chronological change in the circuit breaker (1) depending on the measuring signal and, with the circuit breaker (1) closed, determine the resistance of the switching contact (5) depending on the measuring current and the measuring signal.
    [0002]
    2. Measuring device according to claim 1, characterized in that the measuring device (10) comprises a housing (1) in the form of a portable unit, in which at least the current generating unit (12) is contained, the measuring unit (13), the power supply unit (15), the control output (19) and the control unit (14).
    [0003]
    3. Measuring device according to claim 1 or 2, characterized by the fact that the control drive (6) of the circuit breaker (1) comprises triggering devices to which signals can be conducted to open and / or close the circuit breaker, the measuring device (10) being equipped to provide an electrical potential for activating the triggering devices through the control output (19).
    [0004]
    4. Measuring device according to any one of the preceding claims, characterized by the fact that the control drive (6) comprises an energy accumulator for activating the switching contact (5), the power supply unit (15 ) is designed to provide energy for the energy accumulator.
    [0005]
    Measuring device according to any one of the preceding claims, characterized in that the measuring unit (13) is equipped to record a measurement signal path, and the control unit (14) is shaped to determine a path resistance of the switching contact (5) depending on the measuring current and the path of the measuring signal.
    [0006]
    6. Measuring device according to any one of the preceding claims, characterized by the fact that it also comprises a high voltage generating unit (17), supplied by the power supply unit (15), high voltage generating unit (17). which is designed to generate a high voltage for a measurement of the loss factor of a circuit breaker (1) which is arranged in a grounded housing (8).
    [0007]
    7. Measuring device according to claim 6, characterized by the fact that it also comprises a loss factor measuring device (16) that is shaped to determine a circuit breaker loss factor (1), arranged in a housing (8) grounded, depending on high voltage.
    [0008]
    Measuring device according to claim 7, characterized in that the measuring device (10) comprises a housing (11) in the form of a portable unit, in which at least the current generating unit (12) is contained, the metering unit (13), the power supply unit (15), the control output (19) and the control unit (14), and a high voltage generating unit (17), which is supplied by the power unit power supply (15), and comprises a loss factor measuring device (16).
    [0009]
    Measuring device according to any one of the preceding claims, characterized in that the current generating unit (12) is designed to generate a measuring current of at least 100 A.
    [0010]
    10. Measuring device according to any one of the preceding claims, characterized in that the measuring signal comprises a voltage through the switching contact (5) of the circuit breaker (1).
    [0011]
    11. Measuring device according to any one of the preceding claims, characterized by the fact that the signal, which is emitted by the control unit (14) through the control output (19) to open or close the circuit breaker (1), comprises a control message according to IEC 61850.
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    同族专利:
    公开号 | 公开日
    PL2664936T3|2018-12-31|
    CA2812989C|2016-08-30|
    EP2664936B1|2018-08-22|
    EP2662697B1|2014-06-04|
    AU2013205097A1|2013-11-28|
    CA2812989A1|2013-11-10|
    PL2662697T3|2014-11-28|
    EP2662697A1|2013-11-13|
    CN103389460B|2016-08-10|
    SA113340512B1|2016-05-15|
    AU2013205097B2|2014-12-11|
    BR102013010775A2|2015-06-23|
    ES2688319T3|2018-10-31|
    CN103389460A|2013-11-13|
    US9140756B2|2015-09-22|
    EP2664936A1|2013-11-20|
    KR101422047B1|2014-07-23|
    US20130300423A1|2013-11-14|
    KR20130126474A|2013-11-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2602610B1|1986-08-08|1994-05-20|Merlin Et Gerin|STATIC TRIGGER OF AN ELECTRIC CIRCUIT BREAKER WITH CONTACT WEAR INDICATOR|
    US5117189A|1990-02-21|1992-05-26|Eaton Corporation|Automatic testing apparatus for electrical switches|
    US5388467A|1992-09-09|1995-02-14|Tricor Systems, Inc.|Automatic switch test station|
    US8299799B2|2000-02-17|2012-10-30|Pass & Seymour, Inc.|Electrical device with miswire protection and automated testing|
    KR100429116B1|2001-05-14|2004-04-28|삼성전자주식회사|System and method for automatically analyzing and managing loss factors in test process of semiconductor Integrated Circuit devices|
    US20030151478A1|2001-10-02|2003-08-14|Dejan Radosavljevic|Protection device with lockout test|
    US7173428B2|2001-11-13|2007-02-06|Hurwicz Maxim D|Portable circuit interrupter shutoff testing device and method|
    CN100353175C|2004-12-31|2007-12-05|河北工业大学|Test device for small breaker reliability|
    CN100504420C|2007-07-30|2009-06-24|国网南京自动化研究院|On-line monitoring methods for high-voltage circuit-breaker switching on-off time|
    AU2009211720B2|2008-02-06|2012-08-23|Mitsubishi Electric Corporation|Power measuring system, measuring apparatus, load terminal, and device control system|
    WO2009131530A1|2008-04-21|2009-10-29|Megger Sweden Ab|Resistance measurement in high power apparatus environments|
    EP2163911B1|2008-09-16|2011-01-26|Omicron electronics GmbH|Method for testing a protective device and correspondingly equipped protective device and testing device|
    CN201535814U|2009-03-23|2010-07-28|华东电网有限公司|On-line circuit breaker monitoring system based on IEC61850 standard|
    CN101587169A|2009-07-03|2009-11-25|东北电网有限公司长春超高压局|A kind of breaker state test method|
    US8280670B2|2009-10-20|2012-10-02|General Electric Company|Method and apparatus for detecting failure of an actuator switching device|
    CN102096040B|2010-11-10|2013-06-05|嘉兴电力局|Characteristic instrument device of circuit breaker|
    CN102183728B|2011-02-23|2013-10-09|国家电网公司|Method for detecting electrical state of high-voltage circuit breaker|
    KR101134391B1|2011-05-03|2012-04-09|이승철|The remote control device and the remote controlling method of a pannel and a auto-control plant|
    JP5497115B2|2012-01-27|2014-05-21|三菱電機株式会社|Power switching device and switchboard|PL2662695T3|2012-05-10|2015-12-31|Omicron Electronics Gmbh|Measurement of a resistance of a switch contact of an electrical circuit breaker|
    FR3010584B1|2013-09-12|2015-10-02|Schneider Electric Ind Sas|AUXILIARY APPARATUS FOR ELECTRIC CIRCUIT BREAKER, ELECTRICAL SYSTEM COMPRISING A CIRCUIT BREAKER AND SUCH AN AUXILIARY APPARATUS, AND METHOD FOR DETERMINING CIRCUIT BREAKER OPENING CAUSE USING SUCH AN AUXILIARY APPARATUS|
    CN104635149B|2013-11-08|2017-09-05|上海电科电器科技有限公司|The selftest module of electronic breaker|
    CN103969576A|2014-04-24|2014-08-06|国家电网公司|Dynamic characteristic analyzer for dual-grounding circuit breaker|
    CN103941186B|2014-05-13|2017-05-17|石家庄格力电器小家电有限公司|Ground switch testing device|
    CN104101832B|2014-06-18|2017-02-08|国家电网公司|High voltage circuit breaker movement characteristic test method|
    AT516121B1|2014-07-29|2016-09-15|Omicron Electronics Gmbh|Checking a multi-pole electrical circuit breaker|
    US9086447B1|2014-09-17|2015-07-21|Vacuum Interrupters, Inc.|Portable circuit breaker test and control system|
    FR3026192B1|2014-09-23|2018-01-26|Schneider Electric Industries Sas|METHOD FOR TESTING THE ENTIRE PROTECTIVE CHAIN IN A MEDIUM VOLTAGE ELECTRICAL PROTECTION EQUIPMENT, AND APPARATUS FOR IMPLEMENTING SUCH A METHOD|
    US9753088B2|2014-11-03|2017-09-05|Eaton Corporation|Portable diagnostic apparatus for testing circuit breakers|
    FR3035750B1|2015-04-30|2018-06-15|Schneider Electric Industries Sas|DEVICE FOR PROTECTING AN ELECTRICAL NETWORK|
    CN105116322B|2015-09-11|2018-01-09|国家电网公司|The test system and method for a kind of auxiliary switch for circuit breaker|
    DE102016105897A1|2016-03-31|2017-10-05|Technische Universität Darmstadt|Apparatus and method for impressing an electric current|
    SE1650931A1|2016-06-29|2017-12-30|Megger Sweden Ab|System for analyzing high voltage circuit breakers|
    SE1650932A1|2016-06-29|2017-12-30|Megger Sweden Ab|Method and system for analyzing high voltage circuit breakers|
    KR102039683B1|2017-09-05|2019-11-01|한국수력원자력 주식회사|Dual inserting circuit breaker in power system of power plant|
    CN107450019B|2017-10-19|2020-08-28|国网山东省电力公司潍坊供电公司|Handcart type breaker low-voltage action tester|
    DE102018114425A1|2018-06-15|2019-12-19|Phoenix Contact Gmbh & Co. Kg|Switching monitoring device|
    EP3629041A1|2018-09-28|2020-04-01|FRONIUS INTERNATIONAL GmbH|Method and arrangement for performing a switch-off test in a transformer|
    法律状态:
    2015-06-23| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-26| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-23| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-09-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-17| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 30/04/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12003725.4A|EP2662697B1|2012-05-10|2012-05-10|Measuring device for testing an electrical circuit breaker|
    EP12003725.4|2012-05-10|
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