Module extraction apparatus of high voltage direct current system
The present invention relates to a module extraction apparatus of a high voltage direct current system. In the present invention, a fixed base ( 30 ) is secured to a structure ( 82 ), and a sub-module ( 10 ) is mounted on a movable base ( 60 ) that slides on the fixed base ( 30 ), thereby enabling the sub-module ( 10 ) to be extracted from the structure ( 82 ). The sub-module ( 10 ) may be separated into a power unit ( 12 ) and a capacitor unit ( 24 ) which may be separately extracted from the structure ( 82 ). A connection support ( 84 ) is connected to the fixed base ( 30 ) and installed to protrude toward the outside of the structure ( 82 ), and the tip end of the connection support ( 84 ) extending toward the outside of the structure ( 82 ) is supported by a wire ( 86 ). As described above, the present invention has an advantage of more easily extracting the module, which is a heavy object, from the structure ( 82 ) to carry out the maintenance thereof.
1. A module extraction apparatus of a high voltage direct current system for taking out a module composed of a first part and a second part, which are separable from each other, from a structure for the high voltage direct current system, the apparatus comprising:
a fixed base having rails that longitudinally extend, and installed in the structure;
a movable base fixing the first part and the second part and moving along the rails of the fixed base; and
first part rails formed at a front portion of the movable base and guiding the first part separated from the second part and moving along both sides of the front portion of the movable base,
wherein fixing holes are formed at the first part rails, and fasteners inserted in fastening holes at corresponding positions of the first part are fitted into the fixing holes so that the first part is fixed to the first part rails.
2. The apparatus of claim 1 , wherein the rails are disposed at both longitudinal sides of the fixed base and have a roller channel inside so that rollers on the movable base move in the roller channels.
3. The apparatus of claim 2 , wherein guide ribs are formed inside the roller channels in the longitudinal direction of the roller channels and are inserted in roller grooves formed around outer sides of the rollers.
4. The apparatus of claim 1 , wherein a fixing plate is formed at a front end of the fixed base and coupled to a front end member at a front end of the movable base, and a stopping wall is formed at a rear end of the fixed base and coupled to a rear end member at a rear end of the movable base.
5. The apparatus of claim 4 , wherein a handle is disposed on the front end member of the movable base.
6. The apparatus of claim 1 , wherein stopper holes are formed at a side of each of the rails of the fixed base and at corresponding portions of the movable base so that when the movable base is moved on the fixed base and the module is slightly taken out, the movable base is prevented from moving by fitting stoppers into the stopper holes of the fixed base and the stopper holes of the movable base.
7. The apparatus of claim 1 , wherein the first part is a power unit and the second part is a capacitor unit in the module.
8. The apparatus of claim 1 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.
9. The apparatus of claim 2 , wherein the roller channels formed at the rails at both sides of the fixed base are open toward each other and the rollers moving along the roller channels are disposed on outer surfaces of both opposite sides of roller skirts.
10. The apparatus of claim 2 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.
11. The apparatus of claim 3 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.
12. The apparatus of claim 4 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.
13. The apparatus of claim 5 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.
14. The apparatus of claim 6 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.
15. The apparatus of claim 7 , wherein in order to take out the module, an extension bed is mounted in the structure with a first end fixed close to the fixed base and wires connected at first ends to a front end of the extension bed are connected at second ends to the structure to hold the extension bed on a cage of an aerial ladder.