EP3465848A1 - Over-voltage protection system for a single or multi-phase current supply grid - Google Patents
Over-voltage protection system for a single or multi-phase current supply gridInfo
- Publication number
- EP3465848A1 EP3465848A1 EP17725236.8A EP17725236A EP3465848A1 EP 3465848 A1 EP3465848 A1 EP 3465848A1 EP 17725236 A EP17725236 A EP 17725236A EP 3465848 A1 EP3465848 A1 EP 3465848A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- voltage
- spark gaps
- spark
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001419 dependent effect Effects 0.000 claims abstract description 24
- 230000001960 triggered effect Effects 0.000 claims abstract description 11
- 230000004044 response Effects 0.000 claims abstract description 8
- 230000010363 phase shift Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009118 appropriate response Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T2/00—Spark gaps comprising auxiliary triggering means
- H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T15/00—Circuits specially adapted for spark gaps, e.g. ignition circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
Definitions
- the invention relates to an overvoltage protection system for a single- or multi-phase power supply network, comprising at least two parallel-connected, each triggered spark gaps, wherein the spark gaps comprise two main electrodes and an ignition electrode, which via a control with one of the main electrodes in
- EP 1 461 852 B1 discloses a polyphase overvoltage protection system for a multiphase power supply network with at least two
- Overvoltage protection element arranged, with the individual
- Overvoltage protection elements have a first and a second electrode and an effective between the two electrodes spark gap. All the above-mentioned overvoltage protection elements are in one
- the individual overvoltage protection elements are coupled to one another in such a way that, when an overvoltage protection element is ignited, all other overvoltage protection elements are ignited simultaneously.
- the electrodes are the individual
- Overvoltage protection elements arranged to each other so that when igniting the spark gap of an overvoltage protection element by the then existing plasma, the breakdown spark gap of the other overvoltage protection elements also ignites.
- the individual electrodes are located coaxially with each other.
- the central ignition aid is realized by a central ignition electrode and a central ignition circuit connected to the ignition electrode.
- Spark gaps have auxiliary electrodes.
- the auxiliary electrodes are directly or indirectly connected to each other, so that a voltage supplied to a second, connected in parallel
- the Abieiter themselves are either carried out ungetriggered or have in the Ableitzweig an inductance, an impulse for the parallel
- the maximum sizes, the material load capacities and the special requirement profiles limit the surge current and lightning current carrying capacity of spark gaps.
- the Abieit securities can be increased by the parallel connection of spark gaps.
- a first spark gap is ignited if an overvoltage exceeds a certain threshold.
- the response value is via a control in the auxiliary ignition circuit and based on a by the distance of a
- a spark gap connected in parallel is ignited only when the voltage of the total arc of the initially considered primary spark gap reaches the set response voltage of the second spark gap
- a sufficiently high voltage of the total arc can be achieved by various measures. In this regard, either special spark gaps with very high arc voltage are used or it must by an inductor in the arrester branch a
- an object of the invention to provide a further developed overvoltage protection system for single- or multi-phase power supply networks, which consists of at least two parallel-connected, each triggered spark gaps, the spark gaps having two main electrodes and an ignition electrode.
- an ignition of the parallel spark gap (s) should be made only in case of need at high loads. This is an undesirable aging of the otherwise
- a targeted, on-demand connection of a further one of the spark gaps connected in parallel is achieved in that the ignition electrodes of the spark gaps are connected via a voltage-dependent switching element.
- a voltage-dependent switching element can in particular a
- Gas discharge or a thyristor can be used.
- the response of the other, parallel spark gap can be set and specified in a wide range.
- At least one triggered spark gap is designed for operation in multi-phase networks for each phase, the ignition electrodes of each spark gap of each phase being connected to each other via a voltage-dependent switching element, such that re-ignitions of the spark gaps caused by phase shift can be avoided.
- Fig. 1 is a schematic diagram of the parallel connection of two
- FIG. 2 is an illustration of a solution of an overvoltage protection system for use in the three-phase network, also using the connection of the ignition electrodes of the spark gaps via voltage-dependent switching elements C, and
- Fig. 3 is a schematic diagram of the arrangement of spark gaps according to
- each group is connected to one of the phases LI, L2 or L3.
- the spark gaps have two opposite main electrodes and a trigger electrode.
- the spark gap FS1 is then ignited when an adjacent
- This response value is set via the control A and the ignition voltage U2. In this case, an arc is formed in the spark gap FS1.
- the voltage of the total arc of the spark-through spark gap FS1 is composed of partial voltages Ul and U2.
- voltage-dependent switching element C e.g. a gas discharge tube and the ignition path U4 of the spark gap FS2, e.g. can be designed as sliding, has been achieved.
- Switching element C with appropriate response voltage can therefore be set the ignition level of the parallel spark gap FS2 to a large extent.
- the parallel-connected spark gap FS2 are switched only load-dependent.
- Spark gap FS2 ignited. This divides the high-energy
- the aim is not to operate the spark gaps in parallel, but separately at the individual phases.
- Switching elements C a decoupling of the trigger or ignition potentials of the spark gaps FS1, FS2 and FS3.
- Spark gaps FS1 to FS3 via the voltage-dependent switching elements C reduces the otherwise occurring reignition or the risk of reignition.
- Spark gaps can derive very high lightning impulse currents, as shown in Fig. 3, and a parallel connection of three spark gaps FSL to FS3 with a correspondingly executed coupling via a
- a group with three spark gaps connected in parallel is connected to LI each with ignition electrodes (group G1) connected via a voltage-dependent switching element.
- Group G2 is at L2 and group G3 is at L3.
- the overvoltage protection system according to the invention offers the following advantages in comparison with the prior art.
- Switching element in a three-phase system avoids a re-ignition of one of the spark gaps, which actually erased their arc already would have. Basically burn with simultaneous ignition of all spark gaps in a three-phase system arcs in the
- spark gaps have the highest performance when they can be operated and optimized individually, it is advantageous to spatially separate the corresponding spark gaps in a parallel circuit and to dimension the spark gaps depending on the planned application. For example, a high arc voltage is advantageous for high efficiency in network spark gaps.
- Spark gaps which are used between N and PE of a network, however, have an extremely low arc voltage.
- Overvoltage protection system delivered and can be connected on site according to the local feed conditions.
- the manufacturer of the corresponding overvoltage protection systems supplies a
- the phases of the overvoltage protection system By bridging the phases by field technicians on site in one or two phase networks, the phases of the overvoltage protection system, which is normally located directly behind the supply terminals, connected in parallel.
- the controlled coupling of the ignition or trigger potentials according to the invention makes it possible to reduce the abovementioned maximum lightning current strength of the individual spark gaps, wherein a large total lightning impulse current can be divided equally between the individual spark gaps.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016006668.7A DE102016006668B4 (en) | 2016-05-31 | 2016-05-31 | Surge protection system for a single-, three- or multi-phase power supply network |
PCT/EP2017/062324 WO2017207328A1 (en) | 2016-05-31 | 2017-05-23 | Over-voltage protection system for a single or multi-phase current supply grid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3465848A1 true EP3465848A1 (en) | 2019-04-10 |
EP3465848B1 EP3465848B1 (en) | 2023-08-30 |
Family
ID=58765836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17725236.8A Active EP3465848B1 (en) | 2016-05-31 | 2017-05-23 | Over-voltage protection system for a single or multi-phase current supply grid |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3465848B1 (en) |
CN (1) | CN109196740B (en) |
DE (1) | DE102016006668B4 (en) |
WO (1) | WO2017207328A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11482394B2 (en) | 2020-01-10 | 2022-10-25 | General Electric Technology Gmbh | Bidirectional gas discharge tube |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE404870C (en) | 1924-02-12 | 1924-10-25 | Aeg | Arrangement of air voltage fuses with auxiliary electrodes |
DE10164232A1 (en) * | 2001-12-31 | 2003-07-17 | Phoenix Contact Gmbh & Co | Multipole surge protection system and method for the safe operation of a multipole surge protection system |
FR2864711B1 (en) * | 2003-12-30 | 2006-04-21 | Soule Protection Surtensions | OVERVOLTAGE PROTECTION DEVICE WITH SIMULTANEOUS TRIGGERED PARALLEL ECLATORS |
FR2874288B1 (en) | 2004-08-13 | 2006-10-27 | Soule Prot Surtensions Sa | DEVICE FOR PROTECTING AGAINST PARALLEL INFLATABLE OVERVOLTAGES |
WO2007031850A2 (en) | 2005-09-14 | 2007-03-22 | University Of The Witwatersbrand, Johannesburg | Spark gap protection device |
DE102013225835B4 (en) * | 2013-12-13 | 2022-10-06 | Phoenix Contact Gmbh & Co. Kg | series spark gap |
-
2016
- 2016-05-31 DE DE102016006668.7A patent/DE102016006668B4/en active Active
-
2017
- 2017-05-23 WO PCT/EP2017/062324 patent/WO2017207328A1/en unknown
- 2017-05-23 CN CN201780033597.1A patent/CN109196740B/en active Active
- 2017-05-23 EP EP17725236.8A patent/EP3465848B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11482394B2 (en) | 2020-01-10 | 2022-10-25 | General Electric Technology Gmbh | Bidirectional gas discharge tube |
Also Published As
Publication number | Publication date |
---|---|
WO2017207328A1 (en) | 2017-12-07 |
EP3465848B1 (en) | 2023-08-30 |
DE102016006668B4 (en) | 2018-09-27 |
CN109196740B (en) | 2020-09-22 |
CN109196740A (en) | 2019-01-11 |
DE102016006668A1 (en) | 2017-11-30 |
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