Hydrodynamic energy storage modules for spring energy storage drives for high-voltage switches

An energy storage module and fluid mechanics technology, applied to power devices inside switches, high-voltage/high-current switches, high-voltage air circuit breakers, etc., can solve problems such as expensive and energy exhaustion

Active Publication Date: 2017-04-05
HITACHI ENERGY SWITZERLAND AG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, on the one hand, only a fraction of the energy stored in the spring is depleted
On the other hand, disc springs are considerably more expensive than helical compression springs in the dimensions necessary for use as energy storage modules for power switch drives

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrodynamic energy storage modules for spring energy storage drives for high-voltage switches
  • Hydrodynamic energy storage modules for spring energy storage drives for high-voltage switches
  • Hydrodynamic energy storage modules for spring energy storage drives for high-voltage switches

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] figure 1 Shows an exemplary schematic diagram of an energy storage module according to the invention for a hydraulic spring energy storage drive for actuating a high-voltage power switch with two carrier plates 3, 4 between which a transmission module is arranged 1 and a helical spring assembly 6 whose spring force is transferred via the transmission module 1 (which transmits the energy stored in the helical spring assembly 6 to the energy storage piston guided in the hydraulic cylinder 10 and movable in the axial direction for operating the switch 12 above) to convert.

[0039] The helical compression spring assembly 6 surrounds two opposing spring groups, each of which consists of three cylindrical helical compression springs 6 arranged in a row, wherein the helical compression springs 6 are held at their ends on the two carrier plates 3 , Between 4.

[0040] The coil spring assembly 6 and the piston 12 are indirectly connected through the transmission module 1 so a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a hydrodynamic energy storage module for a spring energy storage drive of a high-voltage power switch, comprising two support plates (3, 4) between which a transmission module (1) and a coil spring assembly are arranged (6), the elastic force of the coil spring assembly (6) acts on the energy storage piston (12) for operating the switch, which is guided in the hydraulic cylinder (10) and acts together with the coil spring assembly (6) and the transmission module (1). ), wherein the helical spring assembly (6) consists of a plurality of helical compression springs (6) which are held at their ends between the support plates (3, 4), the helical compression springs (6) It is arranged around the transmission module (1), and the transmission module (1) is implemented in such a way that the elastic force of the helical compression spring (6), which increases linearly with the spring stroke, causes the force acting on the energy storage piston (12) to reach the energy storage piston (12) remains almost constant over the entire lift.

Description

technical field [0001] The invention relates to a hydrodynamic energy storage module for a hydraulic spring energy storage drive (Federspeicherantrieb) according to the invention for actuating a switch, in particular a power switch of a high-voltage or medium-voltage switchgear. Background technique [0002] Hydraulic spring energy drives for actuating high-voltage power switches are known, for example, from DE 3408909 A1 and the ABB publication Hydromechanical Spring Drive Type HMB-2, ABB Calor Emag Hochspannung GmbH, Hanau-Großauheim and also include Energy storage module of the active elastic element for actuating the high-voltage switch. The elastic element cooperates with a movable energy storage piston guided in the hydraulic block. For this purpose, the energy storage module is designed to provide pressure energy to the hydraulic drive of the high-voltage power switch without an additional supply of external energy and also to actuate the drive and the power switch a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H01H33/34
CPCH01H3/24H01H3/30H01H3/46H01H33/34H01H33/40
InventorM.施密特C.奥斯特里奥N.罗本斯
OwnerHITACHI ENERGY SWITZERLAND AG