3 Phase Fuse Block Symbol

Please do help me.

3 phase fuse block symbol. Fuses are devices containing a small piece of special wire that melts when the intensity of the current flowing through it for a certain period of time exceeds a set value thus protecting the rest of the electrical circuit overloads. 03 01 02 a 123 iec company sequence index nen 5152. Used to protect circuit from high currents. Iec isolators disconnectors fuses contactors overloads electrical iec 60617 bs 3939 symbols representing isolators disconnectors fusesccontactors and overloads for usage in drawing electrical circuits.

In addition to the graphic symbol most drawings will also provide the rating of the fuse next to the symbol. Also shown is the symbol for a removable breaker. When fuses breakers or switches are used in three phase systems the three phase symbol combines the single phase symbol in triplicate as shown in figure 6. How to set the gap for this.

I could not understand what is the problem. Nen k 13 non standard norm. Pl find attahced drawing. It is also used to power large motors and other heavy loads.

Transformer symbols single line transformer symbols autotransformer ct star delta 1 phase 3 phase transformer. 3 of 40 docno. The fuse disconnects when current above threshold. A three wire three phase circuit is usually more economical than an equivalent two wire.

Usually for data address. Three phase electric power is a common method of alternating current electric power generation transmission and distribution. If i try to insert 3 phase symbols it overlaps on each other. Hi i am getting problem while inserting 3 phase symbols.

The rating is usually in amps. A fuse is used for protection of any electrical device from overcurrent. Als dreiphasenwechselstrom nach bezug auch als dreiphasenwechselspannung oder kurz als drehstrom bezeichnet wird in der elektrotechnik eine form von mehrphasenwechselstrom benannt die aus drei einzelnen wechselstroemen oder wechselspannungen gleicher frequenz besteht die zueinander in ihren phasenwinkeln fest um 1200 verschoben sind. It has a small wire or metal which melts due to large current opens the circuit blocking the flow of faulty currents.

Figure 5 fuse and circuit breaker symbols. These are some of the symbolic representation of a generic fuse in any electrical circuit. Publication example iec 617. Symbols have been derived from iec publication 617 nen 5152 and company standards.

It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power.