H 29 H 29 H 29 ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH

Transcription

1 H 29 DRIESCHER Indoor SwitchDisconnector and switchfuse combination H29 24 and 36 current 29 H 29 H 29 ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH D85366 Moosburg Phone: Fax: infoservice@driescher.de

2 DRIESCHER Indoor SwitchDisconnector and switchfuse combination H 29 acc. to EN and EN Tyes of SwitchDisconnectors, Oerating conditions 3 Main advantages, Energie storage mechanism, rc extiniction 4 dditional equiment, Technical data 5 SwitchDisconnector H 29,, Tye E 6 Switchfuse combination H 29,, Tye SE SwitchDisconnector H 29,, Tye E, singleole 8 Range of roducts includes Tyes of SwitchDisconnectors and switchfuse combinations For many years DRIESCHER indoor switchdisconnectors H29 have guaranteed an excellent osition in switchgear engineering. These switchdisconnectors master the daily loads exerted under normal switching duty for interruting ring feeders, disconnecting network transformers and such with very high oerating frequencies and a minimum amount of maintance. These loadbreak switches are distiguished by simle design, absolute reliability in oeration and easy actuation. * see age 3, Energy storage mechanism Tye H 29 E with trifree mechanism* Tye H 29 E, singleole with trifree mechanism* Tye H 29 SE with trifree mechanism* as well as with fuse holders mounted bellow for HV HBC fuses with in release, for allole disconnection of the switch when a fuse oerates. The devices are fitted with an energy storage mechanism for quickmake and quickbreak oeration. In switchfuse combination (Tye SE) only HV HBC fuses with in release and a triing imact force of min. 80 N are to be used (DRIESCHER / SIB; refer also to 91). Oerating conditions The switches are designed for normal oerating conditions according to EN class Minus 5 Indoor. The eak value of the ambient temerature is 40 O C; the average value over 24 hours is 35 O C at best. The values of the insulating ower are related to sealevel. Reduction in insulating caacity at hights u to 1000 m are negligible due to the decreasing insulating caacity of the air. t hights over 1000 m above sealevel the values for rated withstand alternating and rated imulse withstand must be adjusted (e. g. at a hight of 2000 m above sealevel, the insualting ower of the air gas is reduced by a factor of 0.89). To each switchgear an instruction for transortation, mounting and utting into service is inclosed. This instruction which we certainly would send you in advance, has to be absolutely obeyed. 2

3 DRIESCHER Indoor SwitchDisconnector H 29 Substantial advantages High oerating safety Isolating distance visible after load disconnection High oerating frequency with minimum amount of maintenance Efficient and reliable arc extinction Convenient dimensions Easy oeration Energy storage mechanism One of the robust, lowmaintenance energy storage mechanisms of tye H 29 E is mounted on the base frame on which the three switch oles are installed. Hundreds of thousands of these devices have already been used successfully in the Switch Disconnector H 22. The E energy storage mechanism oerates with two torsion srings for quickmake and quickbreak oeration with trifree release. Both torsion srings are tensioned when the switch is closed. While the ON switch sring relaxes after tensioning and releases the energy for switching ON, the OFF switch sring remains tensioned and can be released by the triing device, HV HBC fuse with in triggering or manually for switching OFF. With nonmanual release the oerating shaft remains in ON osition and must be moved to the neutral osition manually for reclosing. The actuation for wallmounting devices can take lace via a linkage system oerated by a lever or using any of the manual actuators given in or motorized actuator given in brochure 4, according to requirements and situation. rc extinction When closing the switch the switch blade (5) with the arcing ti (6) is withdrawn from the contact jaw (2). The arc which occurs is extinguished in the arcing chamber (4). This chamber is enclosed, has four sections and comrises a ressure and an exansion chamber. In the ressure chamber two airs of extinguishing lates (3) are forced into the ath of the arc by lateral sring ressure. t low currents the arc is extinguished by deionising action based on the cooling effect of the walls. rc extinction is achieved in the higher current ranges by the arc extinguishing gases roduced in the ressure chamber flowing out into the exansion chamber. Based on the rational combination of several arc quenching rinciles the entire current range of the loadbreak switch is always effectively covered. 1 Uer connecting contact Lower connecting contact The arcing chambers require no maintenance. ON OFF

4 DRIESCHER Indoor SwitchDisconnector H 29 dditional equiment ll tyes are available with earthing switches mounted above and below. In tyes H 29 E the earthing switch is mounted above or below, on the switch frame (retrofitting is ossible). Tye H 29 SE are available with earthing switches integrated in the switch frame. ositive locking between switchdisconnector and earthing switch is ossible. The earthing switches generally have shortcircuit making caacity and are therefore makeroof. uxiliary switches, Release coils or shunt releases (110 V, 230 V C, or 24 V, 60 V, 110 V, 220 V DC) can be mounted on all switches including earthing switches. ll steel arts are galvanised and chromatised. Design switchfuse combination These switchfuse combination acc. to EN consists of a function unit of switchdisconnector acc. to EN and currentlimiting fuses acc. to EN The use of the switchfuse combination is on transformer rotection, esecially for lower and mean ower. The HV HVC fuse in combination with a switchdisconnector rovides a simle solution which is very economical to rocure and run. This rovides a clearcut advantage over a circuit breaker with the associated current transformers and overcurrent time rotection. Besides this, the HV HVC fuse has a current limiting effect when shortcircuits occur and reliably interruts the fault current of the first half cycle. These roerties are advantageous for the dimensional design of the network. The actuation of the loadbreak switch H 22 can be carried out with a linkage system oerated by a lever or with a motoroerated mechanism. Indoor actuators and accessories see brochure 4. Drive rods and fuse tongs see brochure 3 (system accessories). Technical data acc. to EN frequency current eak withstand current shorttime current shortcircuit making current mainly active breaking current closedloo breaking current transformer offload breaking current cablecharging breaking current earth fault breaking current cablecharging breaking current under earth fault conditions Electrical class Mechanical class Ur fr Ir I Ik Ima I1 I2a I3 I4a I6a I6b Hz k k k ) 20 1) E1 M ) 20 1) E1 M1 1) These values also aly to earthing switches or earthing devices Insulation level acc. to EN lightning imulse withstand 1,2/50 µs Conductor Earth Conductor Conductor Insulating distance Ur Uw ower frequency withstand Conductor Earth Conductor Conductor Insulating distance Ud

5 DRIESCHER Indoor SwitchDisconnector H 29 SwitchDisconnector H 29 E, t 36 Head of screw at the front: 1) Hexagon screw with nut, washer and sring washer Phase searating lates (5mm thick) only for 36 Tye H 29 E with earthing switch mounted below Earthing switch with or without without earthing switch current PartNo.: c c d f g h H H H i 950 k 1060 x/y ,5 4,0 DrawingNo.: LG LG earthing switch mounted below current PartNo. with PartNo. without b 1 L x 1 /y 1 DrawingNo.: ,5 90,0 LG LG

6 DRIESCHER Indoor SwitchDisconnector H 29 Switchfuse combination H 29 SE t 36 Head of screw at the front: 1) Hexagon screw with nut, washer and sring washer Phase searating lates (5mm thick) only for 36 Tye H 29 SE with earthing switch mounted below und fuse holders for HV HBC fuses u to 125 rated current without earthing switch current 3) /125 /125 a 1 b b 1 c 1 c 2 c 3 d f g h H 1 H i 950 k current 3) /125 /125 s u x/y PartNo.: ) 0,5 113,5 DrawingNo.: LG LG earthing switch mounted below current 3) /125 /125 l 530 x1/y1 650 PartNo. with PartNo. without ) 130,5 132,5 DrawingNo.: LG LG ) s without HV HBC fuses 3) current of the fuse holder 125 6

7 DRIESCHER Indoor SwitchDisconnector H 29 SwitchDisconnector H 29 E singleole, 1) Hexagon screw with nut, washer and sring washer Tye H 29 E singleole, with earthing switch mounted below (Motor drive on the left or right side ossible) without earthing switch current PartNo.: DrawingNo.: LG earthing switch mounted below current PartNo. with DrawingNo.: LG449819

8 Our range of roducts includes: Medium systems Singlebusbar and dulicatebusbar switchgear Fixed mounting, withdrawable design and trucktye units Comact switchgear assemblies Customersecific models Industrial switchgear Power factor correction and filter equiment Medium switches Indoor loadbreak switches, disconnectors, and earthing switches (single and trile ole) Indoor circuit breakers (low oil content and vacuum) Outdoor loadbreak switches, disconnectors, and earthing switches (single and trile ole) Railway switches for ower suly and catenary High highbreakingcaacity fuses Customersecific switches Low systems Oenframework design Enclosed switchgear (u to ) Motor Control Center (MCC) Cable and fixedstation distribution cabinets Low switches Switch disconnectors Switching stris and fuse blocks Comact substation Concrete construction Container construction Driving gear Handoerated and motoroerated mechanisms for indoor and outdoor alication ccessories For medium and low For station equiment Insulators (0,5 38,5 ) Plastic and glass fibrereinforced lastic screening Service Maintenance and Service of all switches and switchgear Training courses and seminars Thermograhy; Liveline working Dimensions, weights, diagrams and descritions in the list are nonbinding. Subject to change without notice. STROM SICHER SCHLTEN ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH Moosburg Tel.: Fax: infoservice@driescher.de Order No.: