CN2155060Y

CN2155060Y - Detatching-free one-phase transformer when regulating voltage

Info

Publication number: CN2155060Y
Application number: CN 93201809
Authority: CN
Inventors: 苏子祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-05
Filing date: 1993-02-05
Publication date: 1994-02-02
Anticipated expiration: 2003-02-05

Abstract

The utility model relates to a detatching-free one-phase transformer when regulating voltage, which removes the original joint disc and regulator installed in the shell of the transformer, arranges a one-phase no-load switcher on the external wall of the shell, and connects each tap on the turns of the transformer with terminals corresponding to the switcher. Voltage can be regulated by using the switcher directly without opening the upper cover of the transformer, reaching the effects of safety and convenience.

Description

Detatching-free one-phase transformer when regulating voltage

The utility model relates to a kind of low-voltage electrical apparatus, exactly, relates to a kind of single-phase transformer, and it can open loam cake just can adjust its voltage.

Single-phase transformer is that Utilities Electric Co. is being loaded on supply user power utilization on the electric pole on the distribution line, because the difference in each electricity consumption place, line voltage distribution just differs, so must adjust its output voltage.This single-phase transformer of Shi Yonging as shown in Figure 1 in the past, it is used to adjust 1 li of the terminal board 11 of voltage and housing that adjuster 12 all is installed in this single-phase transformer, when adjusting voltage, the staff must climb up electric pole, unclamp the bolt (shown in Figure 1B) of loam cake earlier with spanner, and loam cake 2 is opened, again hand is stretched into the adjuster 12 of swivel dish in the housing 1, put in back lid afterwards, and screw is fixed.The outstanding voltage of on electric pole, so adjusting, not only danger to the utmost point, and trouble is bothersome again, this defective awaits improving it for the electric power practitioner fact in common knowledge.

The purpose of this utility model provides a kind of adjustment voltage detatching-free single-phase transformer that can overcome the existing product defective.

Feature of the present utility model is to remove terminal board and the adjuster that is installed in originally in the transformer housing, and installs a single-phase no-load switch on the external wall of transformer shell, each tap on the transformer wire turn is connected with the respective terminal of no-load switch again.Like this, after the staff climbed up electric pole, from then on switch was directly adjusted voltage, needn't carry instrument again, also needn't require great effort and open loam cake, and safety does not bother again, and is easy rapidly, can improve staff's working condition.

Below in conjunction with drawings and Examples the utility model is described in detail:

Fig. 1 for the single-phase transformer that uses at present (Figure 1A as structure key diagram, Figure 1B for open the loam cake schematic diagram, Fig. 1 C is line map).

Fig. 2 is an outside drawing of the present utility model.

Fig. 3 A and Fig. 3 B are respectively the front view and the upward view of single-phase no-load switch of the present utility model.

The line map of Fig. 4 single-phase no-load switch for the utility model uses.

Referring to Fig. 2, design feature of the present utility model just is to remove the terminal board and the adjuster of original single-phase transformer inside, and on the appropriate location of single-phase transformer housing outer wall the installing a single-phase no-load switch 3, and the respective terminal of each tap on the transformer wire turn and no-load switch coupled together as shown in Figure 4, make it possible to adjust voltage with single-phase no-load switch 3.

A tap of transformer connection of the present utility model is: voltage is 7200 volts during indicator board 1, and voltage is 6900 volts during indicator board 2, and voltage is 6600 volts during indicator board 3, and voltage is 6300 volts during indicator board 4; And its secondary tap is: voltage is 120 to 240 volts when X2 and X3 wiring, and when X1 and X3 and X2 and X4 wiring, both voltages are 120 volts.

In a word, the utility model is loaded on the external wall of transformer shell because of single-phase no-load switch, when the staff climbs up electric pole adjustment voltage, instrument need not be carried and also loam cake needn't be opened, can directly rotate switch and adjust voltage, saving trouble saves time and laborsaving, work safety and easily.

Claims

1, a kind of adjustment voltage detatching-free single-phase transformer, include housing, loam cake and transformer wire turn, it is characterized in that: remove the terminal board and the adjuster that were installed in originally in the transformer housing, and on the external wall of transformer shell, install a single-phase no-load switch, and each tap on the transformer wire turn is connected with the respective terminal of no-load switch.