CN2463939Y

CN2463939Y - Tap charger of no-load capacitor

Info

Publication number: CN2463939Y
Application number: CN 00255969
Authority: CN
Inventors: 刘刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-20
Filing date: 2000-12-20
Publication date: 2001-12-05
Anticipated expiration: 2010-12-20

Abstract

The utility model relates to a non-load capacitor tap changer used for regulating the output capacitance quantity, which is composed of an operating mechanism, a main shaft, a supporting seat, an insulating rod, a movable contact, static contacts, a wiring terminal, etc. The movable contact is driven to rotate on each static contact by a rotating shaft through the rotation of the operating mechanism under the condition of removing a capacitor from an electric network, and the available output of the capacitor is changed. The utility model has the advantages of simple structure and convenient operation, is suitable particularly for an assembling capacitor.

Description

No-load capacitor shunting switch

The utility model relates to a kind of no-load capacitor shunting switch that is used for capacitor, is a kind of brand new product.

Its each group capacitor of aggregation type high voltage shunt capacitor all has insulator output on case lid in the market, and the actual effective output of integral capacitor device is then finished by the artificial changing-over of the brace between insulator, and is more loaded down with trivial details, time-consuming, reliability is not high.The occasion that has is that terminal is caused the control room, is mounted with fling-cut switch there and realizes, lead-in wire is many and grow like this, the cost height because in air, insulate, radiating condition is poor, its switch overcurrent is big, the step voltage height, so this volume of switch is huge, cost is also high.Simultaneously capacitor top insulator is too much, may cause the case lid area big, let out ooze a little also many, not attractive in appearance, be difficult to maintenance.

The purpose of this utility model is to avoid above-mentioned weak point, and a kind of simple in structure, installation, use, easy maintenance, no-load capacitor shunting switch that reliability is high are provided.

The purpose of this utility model is realized by following scheme.Has operating mechanism 1, Switch main body 14, it is characterized in that bearing 2,3 is arranged on the body 14, be coated with rotating shaft 4 in the bearing, the bearing periphery is provided with insulating bar 5, be furnished with fixed contact 6 on the insulating bar, fixed contact 6 links to each other with each group capacitor lead-out

terminal

8,9,10,11, covers insulator by 8,11 of lead-out terminals on the Switch main body with capacitor box and links to each other.Moving contact 7 in the rotating shaft engages with fixed contact 6.Moving contact 7 is the parallel clamp slice structure, and the terminal 9 of the capacitor that does not come into operation passes through moving contact 7 with its short circuit.

Operating mechanism 1 can be a motor drive mechanism in the such scheme, also can be man-operating mechanism, and Switch main body can vertically be arranged, also can be horizontal layout.

According to such scheme, principal character of the present utility model is to have on the body bearing 2,3, be coated with rotating shaft 4 in the bearing, the bearing periphery is provided with insulating bar 5, insulating bar is provided with fixed contact 6, fixed contact 6 links to each other with inner each group capacitor lead-out

terminal

8,9,10,11, and 8,11 of lead-out terminals cover insulator with capacitor box and link to each other on the Switch main body insulating bar, and the moving contact 7 in the rotating shaft 4 engages with fixed contact 6.Rotation by operating mechanism 1 drives moving contact 7 rotations in the rotating shaft, changes the bonding station of moving contact 7, thereby has changed tap position, and effective output total capacitance is changed, and moving contact 7 is the parallel clamp slice structure, and the carrying overcurrent capability is strong.The capacitor group short circuit that will not come into operation by moving contact 7 prevents that floating potential from producing, and improves operational reliability simultaneously.

In the such scheme, according to its every difference that drops into capacitors count mutually, moving contact can be one or more groups.Operating mechanism 1 can be motor drive mechanism and configuration is controlled, display, is convenient to monitoring.For small capacitor or consideration cost factor, operating mechanism 1 can be manual.

The Switch main body structure is looked the integrated capacitor body structure to be needed to be designed to horizontal mounting means, places capacitor top under the case lid, also can vertical installation places a side of capacitor casing.

The utility model features simple structure, manufacture easily, be widely used on various single-phase or three-phase integrated capacitor and other capacitors.

Below in conjunction with accompanying drawing two embodiment of the present utility model are described.

Fig. 1 is the front view of an embodiment of the present utility model.

Fig. 2 is the E-E view of Fig. 1.

Fig. 3 is the F-F view of Fig. 1.

Fig. 4 is the W phase connection schematic diagram of Fig. 1.

Fig. 5 is the front view of another embodiment of the utility model.

Fig. 6 is the G-G view of Fig. 5.

Fig. 7 is the W phase connection schematic diagram of Fig. 5.

Another embodiment of the utility model is that the triphase horizontal of one or three kinds of capacity outputs is installed no-load capacitor shunting switch shown in Fig. 1,2,3,4.Case lid 13 tops are switch electric operating mechanism 1, have binding post to link to each other with the control display in the mechanism.The case lid bottom is a Switch main body 14, has the left support abutment 2 that is connected in motor drive mechanism, be connected in the right support abutment 3 of case lid, be coated with rotating shaft 4 in the bearing, by supporter 12 is every two groups of clip type moving contacts 7 are housed mutually in the rotating shaft, the bearing periphery has insulating bar 6, every fixed contact 6, lead-out

terminal

8,9,10,11 of being furnished with mutually on the bar, fixed contact links to each other with each capacitor lead-out

terminal

8,9,10,11, and 8,11 of lead-out terminals link to each other with insulator on the case lid 13.

Its operation principle is: W fixes lead-out terminal for this, and W ' is a lead-out terminal 8, W ₁, W ₂Be variable lead-out terminal 9, corresponding with switch respectively fixed contact 6 links to each other.When two moving contact groups of switch are in left position together (as shown in the figure), W connects W ₂, W ' connects W ₁, export 1/3 capacitance, the right capacitor group is simultaneously by short circuit; When two moving contacts of switch mediated, W connected W ₁, W ' connects W ₂, export 2/3 capacitance, left side capacitor group is by short circuit; When two moving contacts of switch are in right position, W ₁Connect W ₂, W ' connects W ' ₂, export whole capacitances.Promptly realized the variation adjusting of capacity output by switch motion.Three alternate mutually insulateds.

Fig. 5,6,7 is another embodiment, is a manual horizontal three-phase no-load capacitor shunting switch.It has the output of two kinds of capacity, and when switch movable contact during in left position, W connects W ₁, export 1/2 capacity, when moving contact is in right position, W ₁Connect W ₂, the output full capacity.This hand switch also can be set up the monitoring position display.

Above switch carries out after capacitor must being excised from electrical network when regulating, and guarantees the no-load adjusting.The vertical placement of above Switch main body is promptly constituted vertical mounting means, be characterized in high and narrow.

When voltage is lower, output progression is when less, and the Switch main body overall structure can be designed to bar shaped or disk-shaped structure.

This utility model can be widely used in aggregation type high voltage shunt capacitor.

Claims

1, a kind of no-load capacitor shunting switch that is used for capacitor, have operating mechanism 1, Switch main body 14, it is characterized in that bearing 2,3 is arranged on the body 14, be coated with rotating shaft 4 in the bearing, the bearing periphery is provided with insulating bar 5, be furnished with fixed contact 6 on the insulating bar, fixed contact 6 links to each other with each group capacitor lead-out terminal 8,9,10,11, link to each other with insulator on the capacitor case lid 14 by output on the body 8,11, moving contact engages with fixed contact in the rotating shaft, with its short circuit, moving contact 7 is the clip type structure to the capacitor terminal 9 that does not come into operation by moving contact 7.

2, according to the described no-load capacitor of claim 1 shunting switch, it is electronic to it is characterized in that operating mechanism 1 can be, and also can be manual operation.

3, according to by claim 1 or 2 described no-load capacitor shunting switchs, it is characterized in that Switch main body 14 can vertically arrange, also can horizontally arrange.