WO1999066522A1 - Integrated unit for an air-insulated high voltage switching station - Google Patents

Integrated unit for an air-insulated high voltage switching station Download PDF

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Publication number
WO1999066522A1
WO1999066522A1 PCT/PL1998/000050 PL9800050W WO9966522A1 WO 1999066522 A1 WO1999066522 A1 WO 1999066522A1 PL 9800050 W PL9800050 W PL 9800050W WO 9966522 A1 WO9966522 A1 WO 9966522A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulators
attached
integrated unit
electrically connected
disconnector
Prior art date
Application number
PCT/PL1998/000050
Other languages
French (fr)
Inventor
Tomasz Nowak
Franz Schmaderer
Marek Fulczyk
Jan Wertz
Karol Kaczmarek
Adam Nowarski
Dariusz Nowak
Robert SEKU$m(C)A
Maciej WNĘK
Zbigniew Korendo
Marek Florkowski
Wojciech Piasecki
Aleksander Gul
Original Assignee
Abb Sp. Z.O.O.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from PL98326954A external-priority patent/PL187179B1/en
Priority claimed from PL98327880A external-priority patent/PL188307B1/en
Application filed by Abb Sp. Z.O.O. filed Critical Abb Sp. Z.O.O.
Priority to AU15794/99A priority Critical patent/AU1579499A/en
Publication of WO1999066522A1 publication Critical patent/WO1999066522A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers
    • H01H2033/024—Details particular to three-phase circuit breakers with a triangular setup of circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/027—Integrated apparatus for measuring current or voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/14—Adaptation for built-in safety spark gaps

Definitions

  • the object of the invention is an integrated unit for an air-insulated high voltage switching station containing a HV disconnector which can be used at HV substations.
  • Air insulated switching stations contain electrically connected protecting and measuring devices as well as HV switching apparatus. Typically, the said devices are arranged in lines, separately for each individual phase, forming separate current ducts for each individual phase. In a multi-phase air-insulated switching station individual current ducts are arranged parallel to each other and they are connected to the corresponding HV overhead lines. Electrical apparatus, namely disconnectors, circuit breakers, current and voltage transformers, and surge arresters are present within individual current ducts in various configurations and at various levels with respect to the ground. Such switching station design provides appropriate spacial requirements for individual devices as well as for groups of devices. There are also known air-insulated switching stations in which individual devices are combined into a single piece of equipment.
  • the object of the invention is an integrated unit for an air-insulated high voltage switching station containing a HV disconnector having transverse arms whose free ends are equipped with main contacts and for which the vertical insulators are attached to a frame forming a base, characterised in that the disconnector member is equipped with a rotary column attached to the base which said rotary column is affixed to three insulators forming the transversal arms arranged so that their projection on the surface perpendicular to the rotation axis of the column forms an image of medians of equilateral triangle crossing the pivoting point of the column.
  • the three vertical insulators are connected to the base so that they are parallel to the pivoting axis of the column arranged symmetrically to each other and to the rotation axis of the column.
  • Each of the vertical insulators is equipped with main contacts attached to the free ends of the insulators.
  • Each of the main contacts is electrically connected to the corresponding head which in turn is connected to the input cables supplying HV current to the main contacts.
  • Each of the heads is in the best way electrically connected to one end of the surge arrester attached parallel to the corresponding vertical insulators.
  • the surge arresters are located preferably inside the insulators.
  • the surge arresters have their opposite ends grounded.
  • Output cables are electrically connected to the main contacts located on the corresponding transversal arms of the disconnector.
  • each of the main contacts is electrically connected to the head which is electrically connected to the input cables supplying HV current to the main contacts.
  • Output cables are attached to the respective transversal arms of the disconnector and each of the output cables is connected to the corresponding main contacts located at free ends of the transversal arms. All individual output cables have a common output path located along the rotary column preferably inside the column.
  • each of the heads is electrically connected to one end of the surge arrester, attached parallel to the corresponding vertical insulators.
  • the surge arresters are located preferably inside the insulators.
  • the surge arresters have their opposite ends grounded.
  • each of the heads there are voltage and current measuring devices attached to each of the heads.
  • each of the circuit breakers is located on the extension of each corresponding vertical insulator, above the head.
  • the upper end of the circuit breaker is equipped with a connecting head, connected to the corresponding input cable.
  • each of the circuit breakers is located below the head, whereas the connecting head with the corresponding input cable is located at the lower end of the circuit breaker.
  • the advantage of the device according to the invention is its design allowing for a significant space reduction with respect to the solution with three independent current ducts in the three-phase switching station. This is achieved by integrating three independent current ducts with a single, three-phase disconnector. Additionally, such a solution brings about a significant reduction of electrical connections among individual devices, existing in the conventional design of the switching station.
  • Trie object of the invention is schematically shown in the accompanying axionometric drawings in which:
  • Fig. 1 illustrates the device in its simplest embodiment, being a disconnector
  • Fig. 2 is the device with the combined surge arresters
  • Fig. 3 illustrates the device with the common output path for all three output cables;
  • Fig. 4 shows the device with the common output path for all three output cables and with the surge arresters
  • Fig 5 illustrates the device with the common output path for all three output cables, with surge arresters, and additionally with circuit breakers,
  • Fig 6 illustrates the second embodiment of the device with circuit breakers
  • Fig 7 is the third embodiment of the device with circuit breakers As shown in Fig 1 , the rotary column 2 attached to the base which said rotary column 2 is affixed to three symmetrically located insulators forming the transversal arms 3 of the disconnector Free ends of the arms 3 are equipped with the main contacts 4
  • Three vertical insulators 5 are connected to the base 1 so that they are parallel to the pivoting axis of the column 2 arranged symmetrically to each other and to the rotation axis of the column 2
  • the free ends of the insulators 5 are connected to the heads 6_ equipped with main contacts 8 and HV terminals 7
  • the HV terminal 7 is located in the upper section of the head 6
  • Each of the heads 6 is electrically connected to the corresponding input cable 9 whereas output cables 10 are connected to the corresponding main contacts 4 located at the arms 3_
  • Fig 2 illustrates the device shown in Fig 1 , in which the main contact 8 is electrically connected with the use of the head 6, to one end of the surge arrester 11 located inside the vertical insulator 5 The opposite end of the surge arrester 11 is electrically connected to the ground, which is not shown in the figure
  • Each of the heads 6 is electrically connected to the corresponding input cable 9 through the current and voltage measuring dev ⁇ ce12
  • Fig 3 illustrates the device shown in Fig 1 , in which there is an output cable 10 connected to each of the main contacts 4 located at arms 3, and each of the output cables 10 is located inside the corresponding arm 3 All individual cables 10 have a common output path 13 located inside the column 2 Additionally there are current and voltage measuring devices 2 attached to each of the heads 6
  • Fig 4 illustrates the device shown in Fig 3, in which there is an output cable 10 connected to each of the main contacts 4 located at arms 3, and each of the output cables 10 is located inside the corresponding arm 3 All individual cables 10 have a common output path 13 located inside the column 2
  • the main contact 8 is electrically connected to one end of the surge arrester H with the use of the head 6.
  • the surge arrester is located inside the vertical insulator 5.
  • the opposite end of the surge arrester H is electrically connected to the ground, which is not shown in the figure.
  • Each of the heads 6 is electrically connected to the corresponding input cable 9_through the current and voltage measuring device 12.
  • Fig. 5 illustrates the device shown in Fig. 4, within each of the transversal arms 3 there is a circuit breaker 14 forming a part of the arm 3.
  • One end of the circuit breaker 14 is electrically connected to the main contact 4.
  • the opposite end of the circuit breaker 14 is connected to the output cable 10 and all individual output cables 10 have the common output path 13.
  • Fig. 6 illustrates a second embodiment of the device shown in Fig. 4, in which each of the circuit breakers 14 is located coaxially with respect to the corresponding vertical insulator 5.
  • the surge arresters H are located inside the vertical insulators 5.
  • Each of the circuit breakers is located at the extension of the vertical insulator 5 and its lower end is connected to the head 6 which is electrically connected to the surge arrester 1J_.
  • the current and voltage measuring device 12 is located between the head 6 and the lower end of the circuit breaker 14. Upper end of each of the circuit breaker 14 is connected to the connecting head 15 to which a corresponding input cable is attached.
  • Fig. 7 illustrates the third embodiment of the device shown in Fig.
  • each of the circuit breakers 14 is located coaxially with respect to the corresponding vertical insulator 5.
  • the surge arresters H are located inside the vertical insulators 5.
  • the head 6 with the corresponding main contact 8 is connected to the upper end of the corresponding circuit breaker 14.
  • Lower end of each of the circuit breakers 14 is connected to the connecting head 1,5 being in the electrical contact with the corresponding input cable 9.
  • the connecting head 15 is in this embodiment also connected to one end of the surge arrester H
  • the opposite end of the surge arrester H is electrically connected to the ground, which is not shown in the figure.
  • the operating principle of the embodiments of the device illustrated in figures 5, 6, and 7 is as follows: In the operating state ("on" state) the position of the rotary column 2 is so that there is a direct contact of each main contact 4 of the arm 3 with the corresponding main contacts 8 of the heads 6. At the same time the circuit breakers are in the "on” position. The current duct for each phase is thus continuous and there is current flow from the input cables 9 to the output cables 10L The values of current and voltage for each phase are determined with the use of the current and voltage measuring devices 12.
  • the surge arresters H provide surge protection for each phase.
  • the circuit breakers are turned into the "off' state. This is achieved with a driving mechanism not shown in the figures.
  • the column 2 is rotated by 60 degrees results in rotating the three transversal arms 3 in the plane perpendicular to the rotation axis. This results in simultaneous disconnecting main contacts 4 from the main contacts 8 for all three phases, which provides visible discontinuities in the current ducts for all three phases which is the "off state of the device.

Abstract

The object of the invention is an integrated unit for an air-insulated high voltage switching stations. The device according to the invention contains one three-phase disconnector, which is preferably combined with three circuit breakers (14), with three surge arresters (11) and with three devices for measuring current and voltage (12). In one of the embodiments of the device according to the invention the circuit breakers (14) are located within the transversal arms (3) of the disconnector. In the second and in the third embodiment of the device the circuit breakers (14) are located at the extensions of the vertical insulators (5) of the disconnector.

Description

Integrated unit for an air-insulated high voltage switching station
The object of the invention is an integrated unit for an air-insulated high voltage switching station containing a HV disconnector which can be used at HV substations.
Air insulated switching stations contain electrically connected protecting and measuring devices as well as HV switching apparatus. Typically, the said devices are arranged in lines, separately for each individual phase, forming separate current ducts for each individual phase. In a multi-phase air-insulated switching station individual current ducts are arranged parallel to each other and they are connected to the corresponding HV overhead lines. Electrical apparatus, namely disconnectors, circuit breakers, current and voltage transformers, and surge arresters are present within individual current ducts in various configurations and at various levels with respect to the ground. Such switching station design provides appropriate spacial requirements for individual devices as well as for groups of devices. There are also known air-insulated switching stations in which individual devices are combined into a single piece of equipment. An example of such solution is the device presented in the patent application PCT 97/26692, describing a HV switch assembly composed of a disconnector integrated with a circuit breaker and instrumentation transformers. In the device described both the circuit breaker and the disconnector are mounted on one and the same stand with one single support base. The stand also carries a current meter and earthing means. The central supporting insulator carries a two-element circuit breaker disposed in a T-shaped mount. Each of the breaker elements carries on its outer end a respective disconnector of a pantograph kind. Combining functions of different devices in a single device reduces space required.
Since in each 3-phase switching station there are at least three parallel current ducts, the integration described is significant from both economical and practical point of view.
In the case of the 3-phase switching station however, separate switching units has to be installed for each individual current duct.
The object of the invention is an integrated unit for an air-insulated high voltage switching station containing a HV disconnector having transverse arms whose free ends are equipped with main contacts and for which the vertical insulators are attached to a frame forming a base, characterised in that the disconnector member is equipped with a rotary column attached to the base which said rotary column is affixed to three insulators forming the transversal arms arranged so that their projection on the surface perpendicular to the rotation axis of the column forms an image of medians of equilateral triangle crossing the pivoting point of the column.
The three vertical insulators are connected to the base so that they are parallel to the pivoting axis of the column arranged symmetrically to each other and to the rotation axis of the column. Each of the vertical insulators is equipped with main contacts attached to the free ends of the insulators. Each of the main contacts is electrically connected to the corresponding head which in turn is connected to the input cables supplying HV current to the main contacts.
Each of the heads is in the best way electrically connected to one end of the surge arrester attached parallel to the corresponding vertical insulators. The surge arresters are located preferably inside the insulators. The surge arresters have their opposite ends grounded. Output cables are electrically connected to the main contacts located on the corresponding transversal arms of the disconnector. In the second embodiment of the device according to the invention each of the main contacts is electrically connected to the head which is electrically connected to the input cables supplying HV current to the main contacts. Output cables are attached to the respective transversal arms of the disconnector and each of the output cables is connected to the corresponding main contacts located at free ends of the transversal arms. All individual output cables have a common output path located along the rotary column preferably inside the column. In this embodiment of the device each of the heads is electrically connected to one end of the surge arrester, attached parallel to the corresponding vertical insulators. The surge arresters are located preferably inside the insulators. The surge arresters have their opposite ends grounded.
Additionally, there are voltage and current measuring devices attached to each of the heads. In the preferred embodiment of the device, there are circuit breakers located within the corresponding transversal arms of the disconnector.
In the another embodiment of the device according to the invention each of the circuit breakers is located on the extension of each corresponding vertical insulator, above the head. The upper end of the circuit breaker is equipped with a connecting head, connected to the corresponding input cable.
In the another embodiment of the device each of the circuit breakers is located below the head, whereas the connecting head with the corresponding input cable is located at the lower end of the circuit breaker.
The advantage of the device according to the invention is its design allowing for a significant space reduction with respect to the solution with three independent current ducts in the three-phase switching station. This is achieved by integrating three independent current ducts with a single, three-phase disconnector. Additionally, such a solution brings about a significant reduction of electrical connections among individual devices, existing in the conventional design of the switching station.
Trie object of the invention is schematically shown in the accompanying axionometric drawings in which:
Fig. 1 illustrates the device in its simplest embodiment, being a disconnector; Fig. 2 is the device with the combined surge arresters; Fig. 3 illustrates the device with the common output path for all three output cables;
Fig. 4 shows the device with the common output path for all three output cables and with the surge arresters; Fig 5 illustrates the device with the common output path for all three output cables, with surge arresters, and additionally with circuit breakers,
Fig 6 illustrates the second embodiment of the device with circuit breakers,
Fig 7 is the third embodiment of the device with circuit breakers As shown in Fig 1 , the rotary column 2 attached to the base which said rotary column 2 is affixed to three symmetrically located insulators forming the transversal arms 3 of the disconnector Free ends of the arms 3 are equipped with the main contacts 4
Three vertical insulators 5 are connected to the base 1 so that they are parallel to the pivoting axis of the column 2 arranged symmetrically to each other and to the rotation axis of the column 2 The free ends of the insulators 5 are connected to the heads 6_ equipped with main contacts 8 and HV terminals 7 The HV terminal 7 is located in the upper section of the head 6 Each of the heads 6 is electrically connected to the corresponding input cable 9 whereas output cables 10 are connected to the corresponding main contacts 4 located at the arms 3_
Fig 2 illustrates the device shown in Fig 1 , in which the main contact 8 is electrically connected with the use of the head 6, to one end of the surge arrester 11 located inside the vertical insulator 5 The opposite end of the surge arrester 11 is electrically connected to the ground, which is not shown in the figure Each of the heads 6 is electrically connected to the corresponding input cable 9 through the current and voltage measuring devιce12
Fig 3 illustrates the device shown in Fig 1 , in which there is an output cable 10 connected to each of the main contacts 4 located at arms 3, and each of the output cables 10 is located inside the corresponding arm 3 All individual cables 10 have a common output path 13 located inside the column 2 Additionally there are current and voltage measuring devices 2 attached to each of the heads 6
Fig 4 illustrates the device shown in Fig 3, in which there is an output cable 10 connected to each of the main contacts 4 located at arms 3, and each of the output cables 10 is located inside the corresponding arm 3 All individual cables 10 have a common output path 13 located inside the column 2 In this embodiment of the device the main contact 8 is electrically connected to one end of the surge arrester H with the use of the head 6. The surge arrester is located inside the vertical insulator 5. The opposite end of the surge arrester H is electrically connected to the ground, which is not shown in the figure. Each of the heads 6 is electrically connected to the corresponding input cable 9_through the current and voltage measuring device 12.
Fig. 5 illustrates the device shown in Fig. 4, within each of the transversal arms 3 there is a circuit breaker 14 forming a part of the arm 3. One end of the circuit breaker 14. is electrically connected to the main contact 4. The opposite end of the circuit breaker 14 is connected to the output cable 10 and all individual output cables 10 have the common output path 13.
Fig. 6 illustrates a second embodiment of the device shown in Fig. 4, in which each of the circuit breakers 14 is located coaxially with respect to the corresponding vertical insulator 5. The surge arresters H are located inside the vertical insulators 5.- Each of the circuit breakers is located at the extension of the vertical insulator 5 and its lower end is connected to the head 6 which is electrically connected to the surge arrester 1J_. The current and voltage measuring device 12 is located between the head 6 and the lower end of the circuit breaker 14. Upper end of each of the circuit breaker 14 is connected to the connecting head 15 to which a corresponding input cable is attached. Fig. 7 illustrates the third embodiment of the device shown in Fig. 4, in which each of the circuit breakers 14 is located coaxially with respect to the corresponding vertical insulator 5. The surge arresters H are located inside the vertical insulators 5. In this embodiment the head 6 with the corresponding main contact 8 is connected to the upper end of the corresponding circuit breaker 14. Lower end of each of the circuit breakers 14 is connected to the connecting head 1,5 being in the electrical contact with the corresponding input cable 9. The connecting head 15 is in this embodiment also connected to one end of the surge arrester H The opposite end of the surge arrester H is electrically connected to the ground, which is not shown in the figure. The operating principle of the device according to the invention is as follows:
In the operating state ( "on" state) the position of the rotary column 2 is so that there is a direct contact of each main contact 4 with the corresponding main contacts 8. Such position of the column 2 is achieved with the use of the drive located below the base 1 which is not shown in the figures. Rotating the column 2 by 60 degrees results in rotating the three transversal arms 3 in the plane perpendicular to the rotation axis. This results in simultaneous disconnecting main contacts 4 from the main contacts 8 for all three phases, which provides visible discontinuities in the current ducts for all three phases, which is the "off' state of the device. The operating principle is identical for all the embodiments illustrated in figures 1 ,2,3, and 4.
The operating principle of the embodiments of the device illustrated in figures 5, 6, and 7 is as follows: In the operating state ("on" state) the position of the rotary column 2 is so that there is a direct contact of each main contact 4 of the arm 3 with the corresponding main contacts 8 of the heads 6. At the same time the circuit breakers are in the "on" position. The current duct for each phase is thus continuous and there is current flow from the input cables 9 to the output cables 10L The values of current and voltage for each phase are determined with the use of the current and voltage measuring devices 12. The surge arresters H provide surge protection for each phase.
In order to brake the current ducts, at the first instance the circuit breakers are turned into the "off' state. This is achieved with a driving mechanism not shown in the figures. At the next step the column 2 is rotated by 60 degrees results in rotating the three transversal arms 3 in the plane perpendicular to the rotation axis. This results in simultaneous disconnecting main contacts 4 from the main contacts 8 for all three phases, which provides visible discontinuities in the current ducts for all three phases which is the "off state of the device.

Claims

Claims
1. Integrated unit for an air-insulated high voltage switching station containing a disconnector member having transversal arms whose free ends are equipped with main contacts and having vertical insulators attached to a frame forming a base, characterised in that the disconnector member is equipped with a rotary column {2} attached to the base (1) which said rotary column [2] is affixed to three insulators forming the transversal arms (3) arranged so that their projection on the surface perpendicular to the rotation axis of the column (2) forms an image of medians of equilateral triangle crossing the pivoting point of the column _2__ whereas the three vertical insulators (5) are connected to the base (1) so that they are parallel to the pivoting axis of the column (2) arranged symmetrically to each other and to the rotation axis of the column (2) and which said insulators (5) are equipped with main contacts (8) attached to the free ends of the insulators _5__
2. Integrated unit according to claim 1 , characterised in that the main contacts (8) of the disconnector are electrically connected to the heads (6) which are connected to the input cables (9) and each of the heads (6) is electrically connected to one end of a corresponding surge arrester (11 ) which said surge arresters (11 ) are attached parallel to the vertical insulators (5) and are located preferably inside the insulators (5) and which said surge arresters (11 ) have their opposite ends grounded, whereas the input cables (10) are electrically connected to the main contacts (4) located on the top of each corresponding transversal arm
(31
3. Integrated unit according to claim 1 , characterised in that the main contacts (8) of the disconnector are electrically connected to the heads (6) located on the top of the corresponding vertical insulators (5) and which said heads (6) are electrically connected to the input cables (9) and to the main contacts (8) whereas at each of the transversal arms (3) there is an output cable (10) attached to it, which said output cable (10} is connected to the corresponding main contact (4) and all individual output cables have a common output path (13) located along the rotary column (2} preferably inside the column
(21
4 Integrated unit according to claim 3, characterised in that each of the heads (6] of the disconnector is electrically connected to one end of the corresponding surge arrester (11 ) which said surge arresters (11 ) are attached parallel to the vertical insulators (5) and are located preferably inside the insulators (5) and which said surge arresters (11 ) have their opposite ends grounded and additionally there are voltage and current measuring devices (12) attached to each of the heads (61
5. Integrated unit according to claim 4, characterised in that there are circuit breakers (14) mounted within each of the insulator forming the transversal arm (31
6. Integrated unit according to claim 4, characterised in that the input cable (9) is electrically connected to the head (6) with the use of the connecting head (15) which is located at the upper end of the circuit breaker (14) which said circuit breaker (14) is located at the extension of each of the vertical insulator (5), above the head 6
7. Integrated unit according to claim 4, characterised in that each the main contacts (8) of the disconnector is attached to the head (6} attached to the vertical insulator (5} through the circuit breaker (14) located above the vertical insulator (5) and through the connecting head (15) located at the lower end of the circuit breaker (14), is connected to the input cable (9) connected to the main contact (8
PCT/PL1998/000050 1998-06-19 1998-12-24 Integrated unit for an air-insulated high voltage switching station WO1999066522A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15794/99A AU1579499A (en) 1998-06-19 1998-12-24 Integrated unit for an air-insulated high voltage switching station

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
PL98326954A PL187179B1 (en) 1998-06-19 1998-06-19 High voltage disconnection switch
PLP.326954 1998-06-19
PL32720498 1998-07-01
PLP.327204 1998-07-01
PL98327880A PL188307B1 (en) 1998-08-05 1998-08-05 Compound equipment for an overhead high-voltage switchgear
PLP.327880 1998-08-05

Publications (1)

Publication Number Publication Date
WO1999066522A1 true WO1999066522A1 (en) 1999-12-23

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ID=27354084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL1998/000050 WO1999066522A1 (en) 1998-06-19 1998-12-24 Integrated unit for an air-insulated high voltage switching station

Country Status (2)

Country Link
AU (1) AU1579499A (en)
WO (1) WO1999066522A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1585157A1 (en) * 2004-04-05 2005-10-12 Nissin Electric Co., Ltd. Polyphase switch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1515552A1 (en) * 1965-03-29 1969-08-07 Egon Von Czudnochoswski Switchgear for load disconnection in outdoor and indoor medium-voltage systems
FR1580713A (en) * 1967-09-28 1969-09-05
US4184058A (en) * 1976-07-23 1980-01-15 Coq B.V. Polyphase isolator switches
WO1996017420A1 (en) * 1994-11-28 1996-06-06 Asea Brown Boveri Ab Electric switching device
US5560474A (en) * 1994-08-15 1996-10-01 Southern Electrical Equipment Company Electro/mechanical actuator for circuit disconnect/connect apparatus for overhead power lines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1515552A1 (en) * 1965-03-29 1969-08-07 Egon Von Czudnochoswski Switchgear for load disconnection in outdoor and indoor medium-voltage systems
FR1580713A (en) * 1967-09-28 1969-09-05
US4184058A (en) * 1976-07-23 1980-01-15 Coq B.V. Polyphase isolator switches
US5560474A (en) * 1994-08-15 1996-10-01 Southern Electrical Equipment Company Electro/mechanical actuator for circuit disconnect/connect apparatus for overhead power lines
WO1996017420A1 (en) * 1994-11-28 1996-06-06 Asea Brown Boveri Ab Electric switching device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1585157A1 (en) * 2004-04-05 2005-10-12 Nissin Electric Co., Ltd. Polyphase switch

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Publication number Publication date
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