Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/66—Structural association with built-in electrical component
  • H01R13/70—Structural association with built-in electrical component with built-in switch
  • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
  • H01R13/7031—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity
  • H01R13/7034—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity the terminals being in direct electric contact separated by double sided connecting element
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
  • G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
  • G01R31/3275—Fault detection or status indication
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
  • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
  • H02H3/02—Details
  • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
  • H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault

Definitions

• the present invention relates to an arrangement according to the preamble of
• Claim 1 and a method for testing a protection and control unit for an electrical distribution and / or transmission network.
• Electrical distribution networks are usually operated with operating voltages in the range of 1-70kV, transmission networks with even higher voltages, for example about 800kV. Overloads, earth and short circuits in such networks are detected by the installation of suitable protective devices and by
• IED Intelligent Electronic Device
• Control units subjected to a functional test Modern protection and / or control units (IED: Intelligent Electronic Device) are computer-aided and therefore have a variety of functions. Because of this will be one
• Equipment for such a distribution and transmission network today usually protected with only a single protection and / or control unit. However, for reasons of reliability, it is necessary to implement resources redundantly in order to ensure the security of the power supply in the distribution and transmission networks.
• Safety check can be easily switched load-free. The disconnected load is then accepted by the second resource. The burden of resources is but mostly too high. A shutdown is therefore not readily possible.
• Connection device arrangement has a test device and a
• connecting device wherein the connecting device is provided for connecting electrical conductors, and wherein the test device in the
• Terminal device is plugged in to electrical quantities that with the
• test and test procedures are carried out without changing the existing circuits.
• a particular advantage of such an arrangement is that the test device for measuring operationally important variables during operation of the electrical equipment can be plugged onto the connection device. Therefore, the
• connection device has pairs of contact lugs which, when the test device is not plugged into the connection device, contact each other electrically, and which are electrically separated from one another when the connection device is plugged into the test device.
• Tester contacts each flag of the contact lug pair with the
• test and connection device arrangement thus enables a decoupling of the protection and / or control unit of the equipment with plugged test device.
• a conventional tester is used, which short-circuits the supply lines on the side of the equipment.
• FIG. 1 shows in (a) an arrangement of the operating means 1, the protection and / or control unit 2, as well as arranged in series between them Connecting device 32 (see Fig. 2) of the test and terminal device assembly 3.
• the test apparatus 31 (see Fig. 2) of the test and terminal device assembly 3 is not plugged into the connecting device 32.
• the pairs of contact lugs which are shown schematically here by electrical switches Ssi, Ss2, HIS, SAUS, contact each other in this operating state.
• the electrical equipment-side 61 arranged electrical conductors 4 and the protective and / or control unit side 62 arranged electrical conductors 4 are electrically connected to each other.
• FIG. 1 (a) therefore shows the operating state of the operating means 1.
• FIG. 1 (b) shows the arrangement when the connection device 32 is inserted
• Tester 31 On the side 62 of the protection and / or control unit 2, a test device 5 is arranged on the electrical conductors 4.
• the contact lug pairs Ssi, Ss2, HIS, SAUS are separated from each other, so that the protective and / or
• Control unit 2 can be tested. And the electrical conductors 4 of the equipment 1 are short-circuited to each other by a bridge K.
• This arrangement is conventionally used during a protection test of the protection and / or control unit 2, and therefore shows a test condition.
• the object of the present invention is to provide an arrangement with which a safety test of the protection and control unit without switching off the
• Test device according to claim 6 and a method according to claim 7.
• Control unit which is connected to the operating means, wherein a connection device is arranged in series between the protection and / or control unit and the operating means, so that the protective and / or
• Control unit is electrically connected to the operating means in the operating state, wherein in a test state, a test device is plugged into the connection device, so that the protection and / or control unit is electrically disconnected in the test state of the equipment.
• Tester is a replacement protection and / or control unit connected or integrated into the test device, which is electrically connected to the equipment.
• the replacement protection and / or control unit takes over during the
• Safety test therefore the protection and / or control function of the protection and / or control unit. It also ensures during the
• test and / or measuring device can be connected to the test device. If the test and / or measuring device is connected to the test device, it is electrically connected to the protection and / or control unit, so that the test is feasible.
• the resource is a current transformer. But there are also other resources such as voltage transformers preferred.
• Control unit a protective relay.
• other protection and / or control units or measuring devices are also preferred.
• the object is further achieved with a test device for such
• the tester is characterized in that on a
• a replacement protection and / or control unit can be connected, which is electrically connected in the test state with the equipment. Therefore, instead of causing a short circuit of the electrical lines of the equipment, the test apparatus of this embodiment, the electrical
• connection to the replacement protection and / or control unit safe is further achieved with a method for testing a protection and control unit of such an arrangement, with the following steps:
• the resource is operated without interruption
• the replacement protection and / or control unit is electrically connected to the operating means when inserting the test device in the connection device.
• the protection and / or control function with the replacement protection and / or control unit - despite the safety inspection of the protection and / or control unit - made available without interruption.
• Applying the configuration of the protection and / or control unit in the replacement protection and / or control unit is preferably carried out either before connecting the replacement protection and / or control unit to the tester or thereafter.
• Test device preferably either before inserting the tester in the connection device, or after.
• test and / or measuring device In order to enable the testing of the protection and / or control unit, it is preferred that the test and / or measuring device, if it is already connected to the test device, when plugging the tester in the connection device electrically with the protective and / or Control unit is connected, or that, if the test device already in the
• Connecting device is plugged in when connecting to the test device is electrically connected to the protection and / or control unit.
• FIG. 1 in (a) an arrangement according to the prior art, with a
• a connection device is connected in series between the equipment and the protection and / or control unit, and in (b) the arrangement of Fig. 1 (a) in a
• Fig. 2 in (a) an arrangement with a resource to which a protection and / or control unit is connected, wherein between the resources and the protection and / or control unit in series a connection device is connected, and a test device between a test and / or measuring device and a replacement protection and / or control unit is arranged, and which can be inserted into the connection device, and in (b) the arrangement of FIG. 2 (a) with inserted test device.
• the arrangements of Figs. 1 (a) and (b) are already described above.
• Fig. 2 (a) With regard to the equipment, the protection and / or control unit and the connection device arranged in series between the equipment and the protection and / or control unit, the arrangement of Fig. 2 (a) does not differ from that of Fig. 1 (a ).
• the contact lugs couples S i S, S S2, BE SAUS There are however represented by each two mutually contacting, V-shaped tabs 321, 322 here. In this case, a first contact lug 321 each at the
• test device 31 for the arrangement according to the invention is shown in FIG. 2 (a).
• test and / or measuring device 5 is connected to the test device on the side 62 facing the protective and / or control unit 2.
• a replacement protection and / or control unit is connected to the test apparatus of FIG. 2 (a).
• test device 31 of FIG. 2 (a) is not inserted into connecting device 32.
• Fig. 2 (a) shows an operating condition B of the operating means 1, and no test condition P.
• the test apparatus 31 has pin elements 310, each comprising a first and a second electrical contact plate 31 1, 312, which are isolated from each other on Pin element 310 are arranged. Namely, here is for each pair of contact lugs Ssi, Ss 2 , BE, SAUS of the connecting device 32 such a pin member 310th
• the pin elements 310 are for interrupting the electrical
• the pin elements 310 interrupt their associated contact lug pair S S i, S S2 , HIS, SAUS- contacting each of the first contact lug 321 of each
• Measuring device 5 is closed.
• the circuits 11, 12 are schematically indicated here by dashed lines.
• FIG. 2 (b) shows the arrangement with test device 31 inserted into connecting device 32.
• Circuit breaker 22 with the unit 2, 2 'each on and off.
• Operating state B existing circuit (not shown) is interrupted, and no more power between the resource 1 and the protective and / or
• Control unit 2 can flow. Instead, the resource 1 is electrically connected to the replacement protection and / or control unit 2 ', so that the of the Replacement protection and / or control unit 2 'permanently provided protection and / or control function exists.
• the protection and / or control function provided by the replacement protection and / or control unit 2 ' is therefore as identical as possible to that provided by the protection and / or control unit 2.
• the replacement protection and / or control unit 2 'and the protection and / or control unit 2' are identical, or at least similar.
• the protection and / or control unit 2 is electrically connected to the testing and / or measuring device 5.
• Control unit 2 possible.
• test device 31 of the connecting device 32 can be removed, so that contact the contact lug pairs S S , S S 2, HIS, SAUS again and the electrical connection between the protection and / or
• Control unit 2 and the resources 1 is restored.
• the operating means 1 of this arrangement can therefore be operated interruption-free despite full safety and / or control function despite the safety test.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Testing Electric Properties And Detecting Electric Faults (AREA)
• Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52684215

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (4)

Citations (3)

Family Cites Families (3)

• 2014
  • 2014-03-13 DE DE102014103420.1A patent/DE102014103420A1/de active Pending
• 2015
  • 2015-03-09 CN CN201590000348.9U patent/CN206516856U/zh active Active
  • 2015-03-09 WO PCT/EP2015/054808 patent/WO2015135869A1/de active Application Filing

Patent Citations (3)

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