JPH05264679A - Power supply test device for non-utility generator or the like - Google Patents

Abstract

PURPOSE:To satisfactorily perform a power supply test without a possibility of leak in a power supply test device for non-utility generator. CONSTITUTION:A test device for non-utility generator has a current-carrying tank 12 in which a resistance liquid 10 is charged; a main electrode 14 arranged in the current-carrying tank 12 to receive the power supply from a non-utility generator of a test target; a movable insulator 16 interposed between the main electrode 14 and the current-carrying tank 12 to regulate the current-carrying quantity from the main electrode 14 to the current-carrying tank 12; and a circulating piping system 18 for cooling or filtering the resistance liquid 10 and returning it into the current carrying tank 12 to recycle the resistance liquid 10 in the current carrying tank 12. The main electrode 14 is supported by the upper part of the current-carrying tank 12 and arranged in the suspended state, and the current is carried to the main electrode 14 through an inlet pipe 20 arranged above the current-carrying tank 12 as a part of the piping system 18 to send the resistance liquid 10 into the current-carrying tank 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply test device for a private generator or the like.

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 failure is tested by this type of device.

[0003]

2. Description of the Related Art A conventional example is shown in FIG. 4, in which a main electrode 14 is arranged in an energization tank 12, and the lower part of the main electrode 14 has a large diameter fixed to a terminal 50 which also serves as a bracket. The bolts 52 are attached and supported by nuts 54.

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 penetrating hole 58 is formed at the bottom of the energizing tank 12. Packing 60 for water leakage prevention on both ends of the
Is attached.

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 by an output cable 62 to a private generator (not shown).

Then, the energization is performed between the energizing tank 12 and the main electrode 14 for a required time, and the output characteristics of the private generator are tested.

[0007]

However, in the above-mentioned conventional test apparatus, since the lower portion of the main electrode 14 is supported by the bolt 52, water may leak from the hole 58 formed at the bottom of the energization tank 12.

Particularly, during the test, the bolts 52 generate heat and become high temperature due to energization, so that the packing 60 and the insulator 56 are highly likely to be damaged, and deterioration due to aging is quick.

Although it is possible that the bolt 52 is damaged by heat generation, if the diameter of the bolt 52 is increased to increase the durability, the cost will be extremely high.

The present invention has been made in view of the above conventional circumstances, and an object of the present invention is to provide a power supply test device such as a private power generator which can perform a good power supply test without fear of water leakage.

[0011]

In order to achieve the above object, the test apparatus according to the present invention is constructed as follows.

FIG. 1 shows the configuration of the present invention.
The first invention will be described below.

As shown in the figure, a main electrode 14 which is supplied with electric power from a private power generator or the like to be tested is arranged in an energization tank 12 filled with a resistance liquid 10.
The main electrode 14 is supported above the energization tank 12 and is in a suspended state.

A movable insulator 16 for adjusting the amount of electricity supplied from the main electrode 14 to the energizing bath 12 is interposed between the main electrode 14 and the energizing bath 12.

A piping system 18 for circulation is connected to the energization tank 12 to cool or filter the internal resistance liquid 10 for reuse and return it to the energization tank 12.

An introduction pipe 20 which is a part of the piping system 18 and which sends the resistance liquid 10 into the electricity passage 12 is installed above the electricity passage 12, and the main pipe 14 is connected to the introduction pipe 20 through the introduction pipe 20. Power is transmitted.

Further, in the second invention, in addition to the above constitution,
A flow rate adjusting member 22 that adjusts the flow rate of the resistance liquid 10 sent to the energization tank 12 is provided on the proximal end side of the introduction pipe 20.

In addition to this, in the third invention, the introduction pipe 20 is covered with an insulating material 24.

[0019]

In the present invention, since the main electrode 14 is supported and suspended above the energization tank 12, it is not necessary to form a hole for inserting the main electrode 14 support member in the energization tank 12. ..

Further, since the introduction tube 20 in which the main electrode 14 is energized is cooled by the resistance liquid 10 flowing therein, there is no fear of dielectric breakdown due to discharge.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows the overall construction of the embodiment. Four communicating tank units 28 are provided above the communicating tank 26.

Since a commonly used generator is a three-phase AC type, the energizer unit 28 is adapted to this.
This is because three groups are provided and one group is provided as a spare.

The energization tank unit 28 includes a substantially cylindrical energization tank 12 provided above the communication tank 26, a main electrode 14 placed in the energization tank 12 in a suspended state, and the energization tank 1
2 and the movable electrode 16 interposed between the main electrode 14 and each of the conducting tanks 12 is filled with a resistance liquid (usually water is used) 10.

An overflow receiving member 30 is provided at the upper end of the energizing tank 12 to prevent overflow due to expansion of the resistance liquid 10 whose water temperature has risen in the initial stage of energization, thereby further improving safety. Has been.

Here, the energization tank 12 and the main electrode 14 each have a substantially cylindrical shape so that smooth energization can be performed.

Further, the communication tank 26 collects the resistance liquid 10 in each of the current-carrying tanks 12 ... Mounted thereon,
It plays the role of sending to the radiator 32.

Further, the communication tank 26 is the conducting tank 1 in operation.
2 has a role of introducing the air generated in the inside to the inside of the auxiliary energization tank 12 which is not in operation and bleeding the air there. That is, arcing occurs when the energization tank 12 contains a large amount of air, which adversely affects the load balance, and an accurate test cannot be performed.

An introduction tube 20 whose outer periphery is covered with an insulating material 24 such as Teflon is provided so as to extend from above in each energization tank 12, and the main electrode 14 is supported by the introduction tube 20. Has been done.

As shown in FIG. 3, a connection terminal bar 36 is attached to the upper end portion of the introduction pipe 20 through an insulating insulator 34, and the connection terminal bar 36 has a private generator side to be tested. Is connected, and electricity is conducted between the main electrode 14 and the energizing bath 12.

The substantially cylindrical movable insulator 16 interposed between the energization 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 energizable area between the main electrode 14 and the energization tank 12 changes, and the energization amount is adjusted accordingly.

A tank 40 is provided above the energization tank 12, and the tank 40 is connected to each introduction pipe 20 by a flexible hose 42 having a withstand voltage and a touch resistance.

An introduction main pipe 21 for supplying the resistance liquid 10 is attached to the tank 40, and a flow rate for adjusting the flow rate of the resistance liquid 10 flowing to the introduction pipe 20 is provided between the tank 40 and the flexible hose 42. A regulating valve 22 is attached.

A drain pipe 44 for discharging the resistance liquid 10 is attached to the communication tank 26 below the energization tank 12, and a pump 46 is attached to the drain pipe 44.
The drainage pipe 44 is connected to the radiator 32, and the introduction main pipe 21 is connected to the outlet side of the radiator 32.

Therefore, the resistance liquid 10 whose temperature has risen in each energization tank 12 ... Is sent from the communication tank 26 through the drainage pipe 44 to the radiator 32 by the pump 46, and heat is exchanged, that is, cooled by the radiator 32. After being introduced, the main 2
It is pooled in the expansion tank 40 via 1 and is supplied to each energization tank 12 again through the flexible hose 42 and the introduction pipe 20.

At that time, the flow rate adjusting valve 22 on the side of the auxiliary energization tank unit 28 is closed, and the resistance liquid 12 is circulated in the other three energization tank units 28.

Although the resistance liquid 10 is not circulated in the auxiliary energizing tank 12 as described above, the auxiliary energizing tank 1 is not used.
The resistance liquid 10 present in 2 is mixed with the resistance liquid 10 in another energization tank 12 through the communication tank 26,
Therefore, the temperature of the resistance liquid 10 in the three energizing tanks 12 to be operated becomes almost uniform in combination with the flow rate adjustment by the flow rate adjusting valve 22, so that the load balance in each tank becomes good and the test is accurately performed. You will be able to do it.

Further, the radiator 32 is cooled by the fan 33 in order to prevent the temperature of the resistance liquid 10 from rising above the set value during operation. The resistance liquid 10 is filtered by the filtration device 48 if necessary (mainly in the case of being subjected to a high voltage test).

As described above, according to the present embodiment, the main electrode 14 is supported in the upper portion by the introduction tube 20 and is placed in the energization tank 12 in a suspended state.
4 It is not necessary to form a penetrating portion for attaching the support member at the bottom of the energization tank 12 (communication tank 20), and therefore there is no possibility of water leakage.

Furthermore, since no custom-made component is used for attaching the main electrode 14, there is no possibility of causing a rise in manufacturing cost.

Further, since the introduction tube 20 through which the main electrode 14 is energized is cooled by the resistance liquid 10 flowing therein and further covered with the insulating material 24, there is no fear of dielectric breakdown due to discharge. .. Therefore, the test can be conducted safely and satisfactorily.

Further, since the flow rate of the resistance liquid 10 supplied to the energization tank 12 can be adjusted by the flow rate adjusting valve 22, the water temperature can be controlled more finely.

[0044]

As described above, according to the present invention, since the main electrode is placed in the suspended state in the energizing bath, it is not necessary to form a penetrating portion at the bottom of the energizing bath. There is no risk of water leakage.

Further, since no specially ordered parts are used for attaching the main electrode, there is no fear of increasing the manufacturing cost.

Further, since the introduction tube through which the main electrode is energized is cooled by the resistance liquid flowing therein and is covered with the insulating material, there is no fear of dielectric breakdown due to discharge, which is why , Safe and good test.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing the overall configuration of the present invention.

FIG. 2 is a front view showing the overall configuration of the embodiment.

FIG. 3 is a side view of FIG.

FIG. 4 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 10 Resistance Liquid 12 Energizing Tank 14 Main Electrode 16 Movable Insulator 18 Piping System 20 Introducing Pipe 22 Flow Rate Control Valve 24 Insulating Material 26 Communication Tank 28 Energizing Tank Unit 30 Receiving Member 32 Radiator 34 Insulation Insulator 36 Connection Terminal Bar 38 Lifting Device 40 Tank 42 Flexible hose 44 Drain pipe 46 Pump 48 Filtration device

Claims (3)

[Claims] 1. A current-carrying tank (12) filled with a resistance liquid (10), and a main electrode (14) arranged in the current-carrying tank (12) and supplied with power from a private generator to be tested. A movable insulator (16) interposed between the main electrode (14) and the energization tank (12) for adjusting the amount of electricity energized from the main electrode (14) to the energization tank (12); In order to reuse the resistance liquid (10) in (), a test for a private power generator, etc. having a piping system (18) for cooling, which cools or filters the liquid (10) and returns it to the energization tank (12) again. In the device, the main electrode (14) is installed in a state of being supported and suspended above the energization tank (12), and installed as a part of the piping system (18) above the energization tank (12) for energization. Through the introduction pipe (20) for sending the resistance liquid (10) into the tank (12), the main electrode ( 14) Power is transmitted to the power supply test device such as a private power generator. 2. A liquid (10) for resistance to an energization tank (12)
The power supply test device for a private power generator or the like according to claim 1, further comprising a flow rate adjusting member (22) for adjusting the flow rate. 3. The power supply test apparatus for a private generator or the like according to claim 1 or 2, wherein the introduction pipe (20) is covered with an insulating material (24).