JP2560154C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply test device such as a private power generator. In a high-rise building or the like, the power generation performance of a private power generator or the like installed to cope with an emergency such as a power outage is tested with this type of device. [0004] FIG. 4 shows a conventional example, in which a main electrode 14 is disposed in a current-carrying tank 12, and a lower portion of the main electrode 14 is fixed to a terminal 50 also serving as a bracket. A nut 54 is attached to and supported by the large-diameter bolt 52. An insulating insulator 56 is interposed between the main electrode 14 and the energizing tank 12 and between the energizing tank 12 and the terminal 50, and a bolt penetration hole 58 formed in the bottom of the energizing tank 12 is provided. Packing 60 for preventing water leakage is attached to both ends of the packing. The energizing tank 12 is filled with the resistance liquid 12, and the terminal 50 for energizing the main electrode 14 and the energizing tank 12 are connected to a private generator (not shown) by an output cable 62. [0006] Then, power is supplied between the power supply tank 12 and the main electrode 14 for a required time, and the output characteristics of the private generator are tested. However, in the above-described conventional test apparatus, since the lower part of the main electrode 14 is supported by the bolt 52, there is a possibility that water leaks from a hole 58 formed in the bottom of the power supply tank 12. is there. In particular, during the test, the bolt 52 generates heat due to energization and becomes high temperature.
There is a high possibility that the insulators 56 will be damaged, and the deterioration due to aging is quick. Further, it is conceivable that the bolt 52 is damaged by heat generation. However, if the diameter of the bolt 52 is further increased in order to increase the durability of the bolt 52, the cost becomes extremely high. The present invention has been made in view of the above-mentioned conventional circumstances, and an object of the present invention is to provide a power supply test device such as a private power generator capable of performing a power supply test satisfactorily without fear of water leakage. [0011] In order to achieve the above object, a test apparatus according to the present invention is configured as follows. 1 to 3 show the configuration of the present invention. As shown in the figure, a substantially cylindrical energizing tank 12 is provided in a rectangular frame 70.
A main electrode 14 having a substantially cylindrical shape, which is disposed in the energization tank 12 and receives power supply from a private generator or the like to be tested, and a substantially cylindrical shape interposed between the energization tank 12 and the main electrode 14. An energization tank unit 28 including the movable insulator 16 is provided. An upper flange 72 of the introduction pipe 20 is fixed to an upper frame plate 71 constituting the frame body 70 above the energizing tank 12 via a plurality of insulating insulators 34 and extends vertically downward. The introduction pipe 20 is attached in a state in which the introduction pipe 20 cannot swing. Further, the main electrode 14 is linearly connected to the lower end portion of the introduction pipe 20 in the extending direction of the introduction pipe 20 so as to be suspended. Along the outlet 73 formed at the lower end of the inlet tube 20 with the connected main electrode 14.
It is attached close to the upper end of the. The introduction pipe 20 has an outer peripheral surface which is entirely covered with an insulating material 24, and has a hollow introduction passage 74 inside thereof as a part of the piping system 18 so as to be inserted into the current-carrying tank 12. The liquid 10 is sent. Further, power can be transmitted to the main electrode 14 through the hollow introduction path wall portion 75 of the introduction tube 20 formed of a current-carrying member. Further, in addition to the above configuration, a flow rate adjusting member 22 for adjusting the flow rate of the resistance liquid 10 into the energizing tank 12 is connected to the upper end side of the introduction pipe 20. According to the present invention, power is supplied from a substantially cylindrical energizing tank 12 and a private generator or the like which is disposed in the energizing tank 12 and is a test object in a rectangular frame 70. An energization tank unit 28 including a substantially cylindrical main electrode 14 for receiving the power supply and a substantially cylindrical movable insulator 16 interposed between the energization tank 12 and the main electrode 14 is disposed. The upper frame plate 71 constituting the upper frame body 70 is attached with the upper end flange 72 of the introduction pipe 20 via a plurality of insulating insulators 34, and is attached with the introduction pipe 20 extending vertically downward. I have. Further, the main electrode 14 is linearly connected at the lower end of the introduction tube 20 in a direction in which the introduction tube 20 extends, that is, in a direction in which the introduction tube 20 vertically descends, and is suspended.
In addition, the main electrode 14 is also installed along the axial direction of the energization tank 12 in a state in which the main electrode 14 cannot swing. Therefore, it is not necessary to form a hole for inserting the support member for the main electrode 14 in the bottom of the current supply tank 12, and the main electrode 14 is kept in a strong state in which the main electrode 14 does not sway in spite of the free state. Can be attached. Further, since the introduction tube 20 in which the main electrode 14 is energized is constantly cooled by the resistance liquid 10 flowing through the inside thereof, the introduction tube is heated by the temperature rise of the resistance liquid 10, and is easily conducted. As a result, there is no danger of dielectric breakdown due to so-called electric discharge when the insulating material 24 on the coated outer peripheral surface is broken and electric discharge occurs to the frame 70 and the like installed in the vicinity. Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows the entire configuration of the embodiment, and four current tank units 28 are provided above the communication tank 26. This is because a commonly used generator is a three-phase alternating current type, and accordingly, three current tank units 28 are provided and one is provided as a spare. The energizing tank unit 28 includes a substantially cylindrical energizing tank 12 provided above the communication tank 26, a substantially cylindrical main electrode 14 disposed in the suspended energizing tank 12 in a suspended state, It comprises a substantially cylindrical movable insulator 16 interposed between the energizing tank 12 and the main electrode 14, and a resistance liquid (usually water is used) in each energizing tank 12.
10 are filled. The energizing tank unit 28 is disposed in a rectangular frame 70 as understood from FIG. An overflow receiving member 30 is provided at the upper end of the energizing tank 12 to prevent overflow due to the expansion of the resistance liquid 10 whose water temperature has risen at the beginning of energization, thereby further improving safety. Have been. Here, as described above, the energizing tank 12 and the main electrode 14 each have a substantially cylindrical shape so that smooth energization can be performed. The communication tank 26 serves to collect the resistance liquid 10 in each of the energizing tanks 12... Mounted thereon and to smoothly send the resistance liquid 10 to the radiator 32. Further, the communication tank 26 has a function of introducing air generated in the operating energizing tanks 12... Into the inside, moving the air to the spare energizing tanks 12 which are not operating, and releasing the air there. have. That is, when a large amount of air is mixed in the energizing tank 12, energization causes an arc, which has an adverse effect on the load balance and makes it impossible to perform an accurate test. In addition, the introduction pipe 2 whose outer periphery is covered with an insulating material 24 such as Teflon is provided in each of the current supply tanks 12.
The main electrode 14 is supported by an introduction tube 20. That is, the upper flange 71 of the introduction pipe 20 is fixed to the upper frame plate 71 constituting the frame body 70 located above the energization tank 12 via the plurality of insulating insulators 34,
The introduction pipe 20 extending vertically downward is attached thereto. The main electrode 14 is provided at a lower end portion of the introduction tube 20 in a direction in which the introduction tube 20 extends,
That is, they are connected in a straight line in a vertically descending direction, and are attached in a suspended state. In addition, it is attached along the axis of the energization tank 12. Further, the outlet 73 formed at the lower end of the inlet tube 20 is connected to the connected main electrode 1.
4 is attached so as to be close to the upper end. Further, as shown in FIG. 3, a connection terminal bar 36 is attached to the upper end of the introduction pipe 20 via an insulating insulator 34, and the connection terminal bar 36 is connected to a private power generation device to be tested. The cable on the machine side is connected, and current is supplied to the main electrode 14. Then, current is also supplied between the main electrode 14 and the current supply tank 12. A substantially cylindrical movable insulator 16 interposed between the energizing tank 12 and the main electrode 14
Is supported by a lifting device 38. When the movable insulator 16 is moved up and down by the elevating device 38, the area where the main electrode 14 and the energizing tank 12 can be energized changes, whereby the amount of energization is adjusted. A tank 40 is provided above the energizing tank 12, and the tank 40 is connected to each of the introduction pipes 20 by a flexible hose 42 made of a withstand voltage and contact resistant insulating member. An introduction main pipe 21 for supplying the resistance liquid 10 is attached to the tank 40, and a flow rate between the tank 40 and the flexible hose 42 for adjusting the flow rate of the resistance liquid 10 flowing to the introduction pipe 20. An adjustment valve 22 is attached. A drain pipe 44 for discharging the resistance liquid 10 is provided in the communication tank 26 below the energizing tank 12.
The pump 46 is attached to the drain pipe 44. The drain pipe 44 is connected to the radiator 32, and the inlet main pipe 21 is connected to the outlet side of the radiator 32. For this reason, the resistance liquid 10 whose temperature has risen in each of the energizing tanks 12.
Is sent from the communication tank 26 to the radiator 32 through the drain pipe 44, and heat-exchanged, that is, cooled by the radiator 32, and then the expansion tank 40 through the introduction main pipe 21.
And is passed through the flexible hose 42 and the introduction pipe 20 again.
Supplied to At that time, the flow regulating valve 22 on the side of the auxiliary energizing tank unit 28 is closed, and the resistance liquid 12 is circulated in the other three energizing tank units 28. As described above, the resistance liquid 10 is not circulated through the auxiliary energizing tank 12, but the resistance liquid 10 existing in the auxiliary energizing tank 12 is supplied to the other energizing tank 12 through the communication tank 26. Since the temperature of the resistance liquid 10 in the three energized tanks 12 to be operated becomes substantially uniform in combination with the flow rate adjustment by the flow rate adjustment valve 22, the temperature of the resistance liquid 10 in each of the three tanks becomes substantially uniform. Thus, the load can be well balanced, and the test can be performed accurately. In order to prevent the temperature of the resistance liquid 10 from rising above a set value during operation,
The radiator 32 is cooled by a fan 33. In addition, the resistance liquid 10 is filtered by the filtration device 48 as needed (mainly in the case of being subjected to a high voltage test). As described above, according to the present embodiment, the upper portion of the main electrode 14 is supported by the introduction pipe 20, and the main electrode 14 is disposed in the suspended state in the energization tank 12. There is no need to form a through-hole for attachment at the bottom of the current-carrying tank 12 (communication tank 20), so there is no risk of water leakage. Further, since no special parts are used for attaching the main electrode 14, there is no possibility that the production cost will rise. In addition, the introduction tube 20 in which the main electrode 14 is energized is cooled by the resistance liquid 10 flowing therein and further covered with the insulating material 24, so that there is no danger of electric discharge, and there is no possibility of electric discharge. There is no danger of destruction of the device due to. Therefore, the power supply test can be performed safely and well. That is, if the introduction pipe 20 is not covered with the insulating material 24 and is not cooled by the resistance solution body 10 flowing therein, the introduction pipe 20
There is a possibility that the electrode itself becomes the same as the main electrode 14, so that the discharge from the introduction tube 20 directly to the energization tank 12 or the introduction of This is because the possibility of discharge from the tube 20 toward another adjacent introduction tube 20, the adjacent elevating device 38, the receiving member 30, or the frame increases, which may result in destruction of the device. Since the flow rate of the resistance liquid 10 supplied to the energizing tank 12 can be adjusted by the flow rate adjustment valve 22, more precise control of the water temperature can be performed. As described above, according to the present invention, since the main electrode is disposed in the suspended state in the energization tank, it is not necessary to form a penetrating portion at the bottom of the energization tank. Therefore, there is no possibility of water leakage. Further, since there is no need to use a custom-made part when attaching the main electrode, there is no possibility that the production cost will rise. In addition, since the introduction tube through which the main electrode is energized is cooled by the resistance liquid flowing inside and covered with the insulating material, there is no possibility of dielectric breakdown due to discharge, and therefore, The test can be performed safely and well.

[Brief description of the drawings]   FIG.   FIG. 1 is a schematic diagram showing the overall configuration of the present invention.   FIG. 2   It is a front view showing the whole composition of an example.   FIG. 3   FIG. 3 is a side view of FIG. 2.   FIG. 4   It is sectional drawing which shows a prior art example.   [Explanation of symbols]   10 Liquid for resistance   12 Current tank   14 Main electrode   16 Movable insulator   18 Piping system   20 Introductory pipe   22 Flow control valve   24 Insulation   26 Communication tank   28 Current tank unit   30 receiving member   32 radiator   34 Insulating insulator   36 Connection terminal bar   38 Lifting device   40 tanks   42 Flexible hose   44 drainpipe   46 pump   48 Filtration equipment

Claims (1)

Claims: 1. An electricity supply tank (12) filled with a resistance liquid (10), and power supply from a private generator or the like to be tested, which is arranged in the electricity supply tank (12). A main electrode (14) to be received, and a movable insulator (16) interposed between the main electrode (14) and the energizing tank (12) for adjusting an amount of electric current from the main electrode (14) to the energizing tank (12). In order to reuse the resistance liquid (10) in the energization tank (12), the resistance liquid (10)
A piping system for circulation (18), which cools or filters 10) and returns it again to the electric tank (12)
And a test device such as a private power generator, comprising: a substantially cylindrical energizing tank (12) and an energizing tank (12) in a rectangular frame (70);
12) a main electrode (14) having a substantially cylindrical shape and a movable insulator (16) having a substantially cylindrical shape interposed between the current supply tank (12) and the main electrode (14). The upper frame plate (71) constituting the frame (70) positioned above the current tank (12) is provided with a plurality of insulating insulators (34). (20) Top flange (72)
The main electrode (14) is attached at the lower end of the introduction pipe (20) at the lower end of the introduction pipe (20).
Are connected in a straight line in the direction in which they extend, and are suspended.
), An outlet (73) formed at the lower end of the inlet tube (20) is attached to the upper end of the connected main electrode (14) so as to be close to the upper end of the inlet tube (20). ) Is coated with an insulating material (24), and a resistance liquid (10) is fed into the electric tank (12) as a part of a piping system (18) by an internal hollow introduction path (74). And power transmission to the main electrode (14) is also performed through the hollow introduction path wall (75) of the introduction pipe (20) formed of a current-carrying member. Supply test equipment. 2. A flow rate adjusting member (22) for adjusting a flow rate of the resistance liquid (10) into the current supply tank (12) is connected to an upper end side of the introduction pipe (20). An electric power supply test device such as a private power generator according to claim 1.