ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH D MOOSBURG TEL FAX

Transcription

1 40 DRIESCHER - Low voltage fusedswitch-disconnector system 40 Rated current upto 445 A ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH D-8566 MOOSBURG TEL FAX infoservice@driescher.de

2 protected against accidental contact according to BGV A, and switchable Index: Index Technical data General Fused-switch disconnector system 40, and, - and pole switchable Fused-switch disconnector system 40, and, with conn. routed up or below Connection types for fused-switch disconnector system 40,, and 909 A 7 Feeder circuits for transformers up to 000 kva (445 A) Feeder and coupling circuits and Feeder and coupling circuits 000 A Accessories Earthing and shorting arrangement Mounting of busbars with width more than 40 mm Technical data Rated current Rated voltage according to VDE V AC 690 V AC Rated frequency Hz Hz Rated insulation,5 kv,5 kv Rated impulse voltage 8,0 kv 8,0 kv 50 ON-OFF operations at 500 V / cos ϕ ON-OFF operations at 500 V / cos ϕ 0. Short circuit making with lv-fuses 00 ka 00 ka Permissible ambient temperature -0 C bis +50 C -0 C bis +50 C Degree of protection IP X IP X Leakage current 0, ma 0, ma Mechanical operations Electrical operations

3 protected against accidental contact according to BGV A, and switchable General The requirement of protection against accidental contact as well as switching under load was taken into consideration when developing this system. That means: maximum possible operational and functional saftey! The distribution system is made of high quality plastic press parts and guarantees an ideal circulation of air. 50 ON-OFF operations each were carried out at 550 V/0 V AC and cos ϕ = 0,7 by 500 A, 750 A and 000 A successfully. By all switching operations the arc was successfully extinguished. The electrical circuit consists of three single poles, vertically arranged and under load switchable fusedswitch-disconnectors. The ON-OFF operation of the fuses is done as shown in the diagram with the operating slider, that arretierst automatically in the OFF position. The operating slider is provided with gaps for controlling the NH fuses as well as for placing a voltage tester. For current conduction, silver plated contacts with connection cables leading below or above are provided, by which the current path from the cable connection up to the fuses are without any screw connections. The switches can be arranged adjacent to each other to make complete distribution systems. During the assembly of such a distribution sytem the busbar can be extended for a possible expansion in the future. The free end of the busbar is covered with isolating plates (page 0). By means of an isolating plug-in lever (page 0), further switches can be mounted on the busbars without switching off the supply. Furthermore slideable covering and work bonnets (page 0) are available. For mounting and demounting the switches under live conditions work bonnets to cover the live parts of the neighbouring circuits are absolutely necessary. a: ON b: OFF a: ON b c: Slider pulled out c The slider has different colours according to the application: Standard colour for coupling circuits for earthing arrangements for line seperation white-grey orange red green

4 protected against accidental contact according to BGV A, and switchable Basic version with twisted cable-connection acc. to drawing NN4-706 ) ) ) Version switchable Version switchable Switching mechanism Operating grip Optional in OFF-position lockable Version switchable with grip possible connection types, see page 6 ) Cable-covering bonnet, see page 0, on ordering ) Support only for Rated Current For lv-fuses b in mm f in mm g in mm s in mm Weig. in kg Size 4) Size 4) Size 4) Size 4) Size 4) Size 4) + Grip + Grip ,5 96,5 96, ,0 8,5 9,0 9, 9,9 0,4 4) Use of lv-fuses size in system and size in system, possible without changing the connecting element. 4

5 protected against accidental contact according to BGV A, and switchable Version with cable-connections above according to drawing NN4-706 operating mechanism operating grip Optional in OFF-position lockable ) Cable-covering bonnet, see page 0, on order Version switchable with grip Rated current for lv-fuses size ) size ) size ) size ) size ) size ) pole pole pole + grip pole pole pole + grip Weight in kg 9,0 9,5 0,0,,7, Use of lv-fuses size in and size in system, is possible without changing the connecting element. 5

6 protected against accidental contact according to BGV A, and switchable Possibilities of cable connections Direct terminals mm se (5-50 mm sm) V-terminals mm se (5-85 mm sm) Version with built in current transformers up to max. (Connection screws M x 55) 4 Version with built in current transformers up to max. 50 A (Connection screws M x 55) Connection type Flat direct-terminals mm se (95-50 mm sm) V-terminal mm se (5-85 mm sm) Transformer bus for system 40 up to max. (Connection type acc. to Pos. to 4 Transformer bus for system 40 up to max. 50 A (Connection screws M x 55) for example 84 means distribution system 40 /, switchable 6

7 DRIESCHER - Low voltage fused switch disconnector system 40 protected against accidental contact according to BGV A, and switchable Incomer circuit for transformers up to 000 kva (445 A) 60 kva (909 A) connection below 60 kva (909 A) connection above 000 kva (445 A) connection below Cable-covering bonnet, see page 0, on ordering Transformer-rating 60 kva 60 kva 60 kva 60 kva 000 kva 000 kva lv-fuses gtr-size gtr-size gtr-size gtr-size gtr-size gtr-size Connection below below above above below below Drawing-Nr. NN NN NN NN NN-784 NN-7797 Weight in kg 9,6 0,,,7 6,4 6,8 7

8 protected against accidental contact according to BGV A, and switchable Incomer or coupling circuit according to drawing NN-70 Examples for arrangement from incomer and outgoing circuit as well as from coupling and outgoing circuit The dimensions k, l and m are dependent on the different system sizes. Cover (page 0) and cap nut made of plastic only on ordering. CsrewScrew extension from metal nut 8 mm to 5 mm. Connecting bracket (drawing-no. NN ) coupler circuit and busbars only on ordering. Rated current Incomer or coupler Connection on theleft led through Connection on the right led through Rated current outgoing circuit k l m ) ) ) ) ) ) By exchanging the connecting element on the slider the use of lv-fuses size in -system and lv-fuses size in system is possible. 8

9 protected against accidental contact according to BGV A, and switchable Feeder and coupler 000 A consisting of two parallel connected distribution system 40, Feeder circuit 000 A according to drawing NN-705 System 40,, parallel connected Outgoing section k Current transformer is not included in the delivery Coupling circuit 000 A System 40,, parallel connected according to drawing NN-707 Outgoing section l n ) ) ) Cover (page 0) and cap nuts made of plastic only on ordering. Screw extension from metal nut 8 mm to 5 mm. Connecting bracket (drawing-no. NN ), between coupling circuit and busbars only on ordering. 9

10 protected against accidental contact according to BGV A, and switchable Accessories Busbar-covering plate for the distribution system 0 and 40 Made of GFK,5 mm, grey colour with cap nuts made of plastic for system 0/60 A b=50 mm Weight 0,0kg Drawing-no. NN for system 40/ b=05 mm Weight 0,9 kg Drawing-no. NN for system 40/ b=5 mm Weight 0,4 kg Drawing-no. NN for coupling circuit b=45 mm Weight 0, kg Drawing-no. NN Work and covering bonnet for distribution system type 40 acc. to BGVA acc. to drawing NN4-904 and NN4-4 Pic. Application Colour Rated current Height Width Depth Covering bonnet for system with normal conn. Covering bonnet for system with normal conn. Covering bonnet for system with normal conn. Covering bonnet for system with normal conn. Work bonnet for all connection types Work bonnet for all connection types Work bonnet for all connection types Covering bonnet for systems with transformer Covering bonnet for systems with transformer Covering bonnet for systems with transformer transparent transparent transparent transparent red red red grey grey grey 800 A 000 A / 445 A 000 A / 909 A Isolating Plug-in lever with / ratchet and insert bit with width and 9 including linking element for washer, lock washer and nuts. For working on live low voltage switchgear, tested according to VDE/GS up to 000 V Length 00 mm Weight,50 kg Drawing-no. NN

11 protected against accidental contact according to BGV A, and switchable Earthing and shorting arrangements Earthing slider (without earthing set), for conventional earthing accessories with 5 mm and 50 mm for rated current Drawing-no. NN4-709 for rated current Drawing-no. NN4-709 Earthing accessories Earthing accessory Cu 5 mm Earthing accessory Cu 50 mm Universal earthing case with earthing accessory Cu 5 mm (0 ka, 0,5 sec) for low voltage fused-switch-disconnector system 40 / and open distribution system size 00 -

12 DRIESCHER - Low voltage fused-switch-disconnector system 40 protected against accidental contact according to BGV A, and switchable Mounting of busbars with width more than 40 mm Version a and b (Picture left) The busbars ( 40 mm) are connected to fused switch disconnector system 40 with distance pieces. Rated Current Connection Drawing-no M x 5 NN M x 5 NN4-049 Copper-brackets can also be used instead of distance pieces (see Pic. b). Pic. a Pic. b Version (Picture right) The busbar ( 40 mm) is connected to the fused switch disconector system 40 with distance pieces. Due to the extended distance pieces current transformers can be mounted for three phase outgoing section measurement. Slip on-current transformer Rated current Connection Drawing-no M x 5 NN M x 5 NN4-8 Version (Picture left) Direct mounting of fused-switch disconnector system 40 on busbars with width more than 40 mm according to drawing NN-970. Variouss options of the fused-switch disconnector, as described are possible. Dimensions, weights, diagrams and descriptions in this brochure are non-binding. Subject to change without notice. switching electricity safely Printed on chlorine free bleached paper. For nature s sake. ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH D-8566 MOOSBURG TEL FAX infoservice@driescher.de Bestellnr