JP6433412B2 - Relay test equipment - Google Patents

Description

  The present invention relates to a test apparatus for a relay that can easily diagnose a failure of a relay such as an auxiliary relay or a timed relay.

  In extra high power receiving / transforming equipment, high voltage receiving / transforming equipment, private generator equipment, etc., it is in the control mode that automatically executes power outage or power recovery in the event of a failure or power outage. The automatic control mode is executed by a relay such as an auxiliary relay (contactor relay) or a time relay (timer relay) installed in the switchboard of the facility.

If the switchboard is used for a long period of time, the components of the relay that is its built-in component may deteriorate or malfunction, causing the automatic control mode not to be switched, Or stop at a power failure.
In such a case, the operator immediately rushes to the site, investigates the electrical equipment such as the relay in the switchboard installed in the equipment, finds the faulty part and electrical equipment as soon as possible, and It is necessary to recover by replacing it.

  However, it is difficult to judge the element deterioration or malfunction of the relay just by looking at the appearance, and the sequence that constitutes the automatic control mode is complicated, so identify the relay that caused the element degradation and malfunction. To do so, a high degree of expertise was required and a long time was required for specific work.

  Therefore, in order to reduce and expedite the task of identifying a relay that has caused such element deterioration and malfunction, a relay coil deterioration diagnosis device that can accurately diagnose the deterioration state of the relay coil has been proposed. (See Patent Document 1).

Japanese Patent Laid-Open No. 09-026451

  The relay coil deterioration diagnosis device described in Patent Document 1 brings the deterioration diagnosis device 4 to the place where the switchboard 1 is installed, and sequentially connects the relay 2 installed in the switchboard 1 and the deterioration diagnosis device 4 with wires 5. The relay 2 which connected and produced element deterioration and malfunctioning is specified.

  However, what is described in Patent Document 1 requires the work of sequentially connecting the relay 2 installed in the switchboard 1 and the deterioration diagnosis device 4 with the wiring 5, and this work requires considerable labor and time. Cost.

In addition, since the diagnosis is performed with the relay 2 installed in the switchboard 1, the position of the relay 2 installed in the switchboard 1 is separately recorded on a sheet or the like. It is necessary to keep.

  Furthermore, since the deterioration diagnosis device 4 includes the pulse voltage generation device 10, the current measurement device 9, the central processing unit (CPU) 6 and the like as constituent elements, the device configuration is complicated and expensive. I had to.

  The present invention has been made to solve such a problem, and the object of the present invention is to specify the position of a faulty relay, particularly a sheet of paper, without requiring much labor and time for specific work. It is another object of the present invention to provide a relay test apparatus that does not need to be recorded on the apparatus and that the apparatus configuration is simple and can be manufactured at low cost.

In order to achieve the above object, the relay test apparatus of the present invention comprises:
A base with a thin rectangular plate,
Multiple types of relay mounting table for installing multiple types of relays;
A guide unit for forming a guide unit that slidably guides the relay mounting table and allows the relay mounting table to be installed.
Corresponding to the contact terminals of the relay, a plurality of types of contact terminal blocks composed of a contact terminal block, b contact terminal block and c contact terminal block;
A power supply unit for applying a voltage to the coil terminal of the relay;
A power switch for operating ON and OFF of a voltage supplied from the power supply unit to the coil terminal of the relay;
A relay test device comprising:
The placement table guide member, a plurality of types of contact terminal blocks, the power supply unit and the power switch are disposed on the base,
A plurality of types of relay mounting tables are locked and arranged on the mounting table guide member described above.

Here, it is preferable that a plurality of setting long holes are formed at predetermined intervals in the length direction on the bottom surface portion of the table guide member.

It is preferable to arrange a plurality of types of the contact terminal blocks in front of the mounting table guide member, the power supply unit, and the power switch.

In the plurality of types of the contact terminal blocks, it is preferable that the c contact terminal block is disposed in front and the a contact terminal block and the b contact terminal block are disposed in parallel rearward.

  A power terminal block may be provided on the base, and a voltage may be supplied to the plurality of relay mounting tables via the power terminal block.

According to the relay testing apparatus of the present invention, the diagnostic work can be carried out simply by detaching the relay as appropriate and installing it on the relay mounting table, so that the labor and time required for the diagnostic work can be considerably reduced. Even if you are not an expert, you can perform diagnostic work.

In addition, since the diagnosis is performed by removing the relay from the switchboard, it is possible to immediately recognize where the relay is installed at a fault, and separately record the position of the relay in the switchboard on a sheet of paper. There is no need to keep it.

  Furthermore, since the relay test apparatus of the present invention is configured using general-purpose parts such as a relay mounting table and a contact terminal block, the apparatus configuration is extremely simple and can be manufactured at low cost.

It is explanatory drawing which shows the structure and operation | movement of a relay, Comprising: (A) is a state in normal time, (B) is a figure which shows the state at the time of electricity supply. It is a top view of one embodiment of a test device for relays of the present invention. (A) of a relay mounting base is a plan view, and (B) is a side view. The mounting table guide member (A) is a plan view, and (B) is a side view. It is a top view of the state which installed the relay in the testing apparatus for relays of FIG. It is a top view of other embodiments of a test device for relays of the present invention. It is a top view of the state which installed the relay in the testing apparatus for relays of FIG. It is explanatory drawing which shows the state which diagnoses the deterioration and defect of a relay using the testing apparatus for relays of FIG. It is explanatory drawing which shows the state which diagnoses the deterioration and defect of a relay using the testing apparatus for relays of FIG. It is explanatory drawing which shows the state which diagnoses the deterioration and defect of a relay using the testing apparatus for relays of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a relay test apparatus of the present invention will be described in detail with reference to the drawings.

  First, the structure and operation of an auxiliary relay (contactor relay) to be tested in the relay testing apparatus of the present invention will be described.

  The auxiliary relay 10 is a mechanical relay that opens and closes a contact by electromagnetic action. As shown in FIG. 1, the electromagnet 1 in which a coil 1b is wound around an iron core 1a, coil terminals 2 and 2, and an a contact 3 , B contact 4, c contact 5, movable contact 6 connected to c contact 5, movable between a contact 3 and b contact 4, adherend member 8 a, support rod 8 b, working rod 8 c, pivot 8 d The movable contact actuating mechanism 7 includes a connecting member 8e and a spring 9, and moves the movable contact 6.

  Normally, as shown in FIG. 1 (A), since no voltage is applied between the coil terminals 2 and 2, no current flows through the coil 1b, and the adherend member 8a is separated from the iron core 1a. The movable contact 6 is in contact with the b contact 4.

  On the other hand, since a voltage is applied between the coil terminals 2 and 2 during energization, a current flows through the coil 1b, the electromagnet 1 is excited, and the iron core 1a attracts the adherend member 8a. As a result, as shown in FIG. 1B, the action rod 8 c swings around the pivot 8 d against the elastic biasing force of the spring 9, and the movable contact 6 comes into contact with the a contact 3.

  If the voltage application between the coil terminals 2 and 2 is stopped, the electromagnet 1 is not excited and the iron core 1a does not attract the adherend member 8a. As a result, as shown in FIG. 1A, due to the elastic biasing force of the spring 9, the action rod 8c swings and returns to the original position, the movable contact 6 separates from the a contact 3, and the b contact. 4 to return to the normal state.

  The time relay (timer relay) 20 is obtained by adding a function to the auxiliary relay 10 to electrically “close” or “open” the circuit after a preset time has elapsed.

  When the voltage is applied to the coil relays 2 and 2 in the time relay 20, the movable contact 6 operates after a set time (settling time), and when the voltage application is stopped, the movable contact 6 is instantaneously restored. On the other hand, when a voltage is applied to the coil terminals 2 and 2, the movable contact 6 operates instantaneously, and when the voltage application is stopped, the movable contact after a set time (settling time). There is an instantaneous operation timed reset type that 6 returns.

  Next, the configuration of the relay test apparatus of the present invention will be described in detail with reference to FIGS.

[Embodiment 1]
As shown in FIG. 2, the relay test apparatus 30 of the present invention includes a base 31, a relay mounting table 32, a mounting table guide member 33, a contact terminal block 34, a power supply unit 35, a power switch 36, And a power terminal block 37.

The base 31 has a thin rectangular plate shape formed from a metal material, a synthetic resin material, wood, or the like.
The base 31 is desirably as light as possible so that labor is not required for the operator to carry it, and aluminum or the like is preferable as the metal material.

The relay mounting table 32 is provided with the auxiliary relay 10 and, as shown in FIG. 3, at both ends thereof, the terminal 32m corresponding to the coil terminal 10m and the contact terminals 10a, 10b, 10c of the auxiliary relay 10. , 32a, 32b, 32c are arranged.

The mounting table guide member 33 is formed by bending a thin plate material made of a metal material such as aluminum into a predetermined shape, and forms a bottom surface portion 33a, a side surface portion 33b, and a guide portion 33c as shown in FIG. The bottom surface 33a is provided with insertion holes 33d at both ends and a plurality of setting long holes 33e at predetermined intervals.
Therefore, as shown in FIG. 3B, the protrusion on the bottom surface of the relay mounting table 32 is locked to the guide portion 33 c of the mounting table guiding member 33, and the relay mounting table 32 is moved along the mounting table guiding member 33. The relay mounting table 32 can be set to an appropriate position where it is easy to work by sliding and stopping at an appropriate position with the setting long hole 33e as a mark.

  The contact terminal block 34 includes an a contact terminal block 34A, a b contact terminal block 34B, and a c contact terminal block 34C. The same number of terminals 34a, 34b, 34c are arranged.

The power supply unit 35 is for applying a voltage to the coil terminal 10m of the relay 10, and supplies a voltage of DC 100 (V).
Although power is supplied from an external power source via a power cord, power may be generated independently by incorporating a battery.

  The power switch 36 is for operating ON / OFF of the voltage supplied from the power unit 35 to the coil terminal 10m of the relay 10.

  The power supply terminal block 37 connects the power supply unit 35 and the power switch 36 by wiring 38 and connects the terminal 32 m of the relay mounting table 32 by wiring 38.

  The relay test apparatus 30 of the present invention has the above-described configuration. When the auxiliary relay 10 is tested, the auxiliary relay 10 corresponding to the relay mounting table 32 is placed and installed as shown in FIG. use.

  As a result, the contact terminals 10a, 10b, and 10c of the auxiliary relay 10 and the corresponding a contact terminal block 34A, b contact terminal block 34B, and c contact terminal block 34C of the contact terminal block 34 are connected. ing.

[Embodiment 2]
As shown in FIG. 6, the relay testing apparatus 50 according to the present invention includes a base 51, a relay mounting table 52, a mounting table guide member 53, a contact terminal block 54, a power supply unit 55, a power switch 56, A repeater 57 and a display 58 are included.

The base 51 has a thin rectangular plate shape formed from a metal material, a synthetic resin material, wood, or the like.
The base 51 is desirably as light as possible so that labor is not required for the operator to carry it, and aluminum or the like is preferable as the metal material.

The relay mounting base 52 is provided with the time relay 20 and terminals 52m, 52a, 52b and 52c corresponding to the coil terminal 20m and the contact terminals 20a, 20b and 20c of the time relay 20 are provided at both ends thereof. Has been placed.

The mounting table guide member 53 is composed of a bottom surface portion 53a, a side surface portion 53b, and a guide portion 53c, similarly to the mounting table guide member 33, and the bottom surface portion 53a has insertion holes 53d at both ends. In addition, a plurality of setting long holes 53e are formed at predetermined intervals.
The mounting table guide member 53 also has the same function as the mounting table guide member 33 described above, and has the same effect.

  The contact terminal block 54 is composed of an a contact terminal block 54A, a b contact terminal block 54B, and a c contact terminal block 54C. The same number of terminals 54a, 54b and 54c are arranged.

The power supply unit 55 is for applying a voltage to the coil terminal 20m of the relay 20, and supplies a voltage of DC 100 (V).
Although power is supplied from an external power source via a power cord, power may be generated independently by incorporating a battery.

  The power switch 56 is for operating ON / OFF of the voltage supplied from the power supply unit 55 to the coil terminal 20m of the relay 20.

  The repeater 57 connects the power supply unit 55 and the power switch 56 by wiring 58 and also connects the terminal 52 m of the relay mounting table 52 by wiring 58.

The display 58 is for confirming by a numerical display whether the settling time set in the time relay 20 is correctly executed.
This indicator 58 is also connected to the repeater 57 by a wiring 58 so that a voltage is supplied via the repeater 57.

  The relay test apparatus 50 according to the present invention has the above-described configuration. When the time relay 20 is tested, the time relay 20 corresponding to the relay mounting base 52 is placed and installed as shown in FIG. use.

  As a result, the contact terminals 20a, 20b, and 20c of the time relay 20 and the corresponding a contact terminal block 54A, b contact terminal block 54B, and c contact terminal block 54C of the contact terminal block 54 are connected. ing.

  Next, a method for using the relay test apparatus of the present invention will be described in detail with reference to FIGS. 8 to 10 by taking the relay test apparatus 30 as an example.

  First, the operator appropriately stores the relay test apparatus 30 shown in FIG. 2 in a bag, a paper bag, etc. together with other work apparatuses, work tools, etc., and carries it to the vicinity of the switchboard for performing the test. .

  When the operator arrives at the installation location of the switchboard, the operator first opens the door of the switchboard, connects the power cable to the power supply installed in the switchboard, and supplies power to the power supply unit 35.

  Next, the auxiliary relays 10 arranged in the switchboard are sequentially detached from the switchboard, and the auxiliary relays 10 are mounted on the appropriate relay mounting base 32 of the relay testing apparatus 30 and installed.

  As a result, the contact terminals 10a, 10b, and 10c of the auxiliary relay 10 and the corresponding a contact terminal block 34A, b contact terminal block 34B, and c contact terminal block 34C of the contact terminal block 34 are connected.

Next, the power switch 36 is turned on, and a voltage of DC 100 (V) is applied from the power supply unit 35 to the coil terminals 10 m and 10 m of the auxiliary relay 10.

Then, as shown in FIG. 8, the lead rods 71 and 72 of the tester 70 are brought into contact with the terminals 32 m and 32 m of the relay mounting table 32 corresponding to the coil terminals 10 m and 10 m of the auxiliary relay 10, and the coil of the auxiliary relay 10 is normal. Check that voltage is applied to the.

For example, if 101.7 [V] is displayed on the display screen 73 of the tester 70, it is determined that the state is normal. Of course, if 100 [V] or less is displayed on the display screen 73, it is determined that the state is defective.

Next, as shown in FIG. 9, the lead bars 71 and 72 of the tester 70 are brought into contact with the terminals 34a and 34b of the a-contact terminal block 34A and the b-contact terminal block 34B of the contact terminal block 34, and the a Check if the contact and b contact are conducting.

For example, if 0 [Ω] is displayed on the display screen 73 of the tester 70, it is determined that the state is normal. Of course, if a display such as OF or 6.6 [Ω] is displayed on the display screen 73, it is determined that the state is defective.

Next, as shown in FIG. 10, the lead bars 71 and 72 of the tester 70 are brought into contact with the terminals 34 b and 34 c of the b contact terminal block 34 B and the c contact terminal block 34 C of the contact terminal block 34, and b of the auxiliary relay 10. Check if the contact and c contact are conducting.

Then, similarly to the above, it is determined whether the conduction between the b contact and the c contact of the auxiliary relay 10 is in a normal state or a defective state.

  As described above, the relay test apparatus 30 according to the present invention does not require the work of sequentially connecting the relay 10 installed in the switchboard and the test apparatus by wiring, and the relay 10 is appropriately detached to be placed on the relay mounting table 32. Since the diagnostic work can be carried out simply by installing it, the labor and time required for the diagnostic work can be reduced to a considerable extent, and the diagnostic work can be easily performed even by a non-expert.

In addition, since the diagnosis is performed by removing the relay 10 from the switchboard, it is possible to immediately recognize where the relay 10 installed is broken, and it is possible to immediately replace it with a new one on the spot. Separately, it is not necessary to record the position of the relay 10 in the switchboard on a sheet or the like.

  Furthermore, the relay test apparatus 30 of the present invention does not require components such as a pulse voltage generator, a current measuring device, and a central processing unit (CPU), and is a general-purpose component such as a relay mounting table 32 and a contact terminal block 34. Therefore, the apparatus configuration is extremely simple and can be manufactured at a low cost.

  In addition, since the relay testing apparatus 30 of the present invention has a plurality of relay mounting bases 32, it is possible to measure a plurality of types of relays 10 at substantially the same time, and the diagnosis work is extremely efficient and performed quickly. can do.

  Here, the mounting table guide member 33 can set an appropriate number of relay mounting tables 32, 32, and 32 at appropriate positions, so that the diagnosis work can be made more efficient.

Further, since the contact terminal block 34 is arranged with the c contact terminal block 34C in front and the a contact terminal block 34A and b contact terminal block 34B in parallel rearward, the lead bars 71 and 72 of the tester 70 are brought into contact with each other. It is easy to make it possible to perform the work efficiently.

  In addition, in the above, although the usage method of the relay test apparatus 30 was demonstrated, the relay test apparatus 50 can also be used similarly and a diagnostic work can be implemented.

DESCRIPTION OF SYMBOLS 10 Auxiliary relay 10m Coil terminal 20 Time limit relay 30 Relay testing device 31 Base 32 Relay mounting base 33 Mounting base guide member 33a Bottom face part 33c Guide part 33e Setting long hole 34 Contact terminal base 34A a contact terminal base 34B b contact terminal base 34C c contact terminal block 35 power supply unit 36 power switch 37 power supply terminal block 50 relay testing device 51 base 52 relay mounting table 53 mounting table guide member 53a bottom surface part 53c guide unit 53e long hole 54 for setting contact terminal block 54A a contact terminal 54B b contact terminal block 54C c contact terminal block 55 power supply unit 56 power switch

Claims (5)

A base with a thin rectangular plate,
Multiple types of relay mounting table for installing multiple types of relays;
A guide unit for forming a guide unit that slidably guides the relay mounting table and allows the relay mounting table to be installed.
Corresponding to the contact terminals of the relay, a plurality of types of contact terminal blocks composed of a contact terminal block, b contact terminal block and c contact terminal block;
A power supply unit for applying a voltage to the coil terminal of the relay;
A power switch for operating ON and OFF of a voltage supplied from the power supply unit to the coil terminal of the relay;
A relay test device comprising:
The placement table guide member, a plurality of types of contact terminal blocks, the power supply unit and the power switch are disposed on the base,
A relay testing apparatus characterized in that a plurality of types of the relay mounting bases are locked and arranged on the mounting base guide member .
The relay testing apparatus according to claim 1, wherein a plurality of setting long holes are formed at predetermined intervals in a length direction of the bottom surface portion of the table guide member .
The relay test apparatus according to claim 1 , wherein a plurality of types of the contact terminal blocks are arranged in front of the mounting table guide member, the power supply unit, and the power switch .
4. The contact terminal block of a plurality of types, wherein the c contact terminal block is disposed in front, and the a contact terminal block and the b contact terminal block are disposed in parallel rearward . The relay test apparatus according to any one of the preceding claims.
The relay according to any one of claims 1 to 4 , wherein a power terminal block is provided on the base, and a voltage is supplied to the plurality of relay mounting tables via the power terminal block. Testing equipment.

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