JPH0223047A - Remote control monitor - Google Patents

Abstract

PURPOSE:To discriminate between disconnected state and no-voltage state by lighting an ON indication LED and an OFF indication LED under TRIP condition. CONSTITUTION:When overcurrent flows or shortcircuit occurs between a main circuit source terminal 27 and a main circuit load terminal, a break switch 30 is opened through a trip mechanism(not shown) and the COM terminal of a microswitch B23A is connected with NC terminal. Consequently a closed loop of a source transformer 5-first terminal 10 a resistor 4- an OFF indication LED15 a second terminal 11 a fourth terminal 21 an operation drive coil 26 a microswitch A23A an ON control diode 22 a third terminal 20 and a closed loop of the source transformer 5 the third terminal 20 an OFF control diode 24 the microswitch B23A the operation drive coil 26 the fourth terminal 21 the second terminal 11 a resistor 13 an ON indication LED12 the first terminal 10 are constituted and current flows therethrough. Consequently, both ON and OFF indication LEDs 12, 15 in a remote operation circuit 1 are lighted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a remote control and monitoring device used in a power distribution system control system for lighting equipment and the like.

[Conventional technology] The configuration of a conventional example will be explained with reference to FIG.

FIG. 6 is a wiring diagram showing an OFF state of a conventional remote control monitoring device.

In FIG. 6, (1) is a remote control circuit composed of (10) to (19).

(10) is the first terminal, (11) is the second terminal, (12
) is an ON display LED whose cathode terminal' is connected to the first terminal (10), and (13) is an ON display LED whose one end is connected to the ON display LED.
A resistor (14) is connected to the anode terminal of ED (12) and the other end is connected to the second terminal (11), (14) is a resistor whose one end is connected to the first terminal (10), (15) is an OFF indicating LED whose anode terminal is connected to the other end of the resistor (14) and whose cathode terminal is connected to the second terminal (11).

(16) is a 0FFtli control diode whose cathode terminal is connected to the first terminal (10), and (17) is a 0FFIIItl diode (16) whose cathode terminal is connected to the first terminal (10).
) an OFF operation switch (18) connected to the anode terminal of the switch and having the other terminal connected to the second terminal (11);
is an ON control diode whose anode terminal is connected to the first terminal (10), and (19) is an ON control diode whose one terminal is connected to the O
ON connected to the cathode terminal of the N control diode (18) and whose other terminal is connected to the second terminal (11)
It is an operation switch.

(2) is a remote control breaker composed of (20) to (30).

(20) is the third terminal, (21) is the fourth terminal, (22
) is an ON control diode whose cathode terminal is connected to the third terminal (20), and (23) is a microswitch A whose COM (common) terminal is ON and whose anode terminal is connected to the anode terminal of the control diode (22). , (24) is an OFF control diode whose anode terminal is connected to the third terminal (20), (25) is a microswitch B whose C0M terminal is connected to the cathode terminal of the OFF control diode (24), ( 26) has one end connected to micro switch A (2
3) and the NC terminal of microswitch B (25), and the other end thereof is an operating drive coil connected to the fourth terminal (21).

In addition, (2)) is a main circuit power supply terminal connected to a power supply (not shown), (28) is a main circuit load terminal connected to a load (not shown), and (29) is a main circuit power supply terminal ( The fuse (30) connected to 2)) is a cutoff switch with one terminal connected to the other end of the fuse (29) and the other terminal connected to the main circuit load terminal (28).

Note that microswitch A (23) and microswitch B (25) have NO connections that are not connected anywhere.
There is a (normally open) terminal.

(3) is the transmission line connecting the first terminal (10) and the third terminal (20), and (4) is the transmission line connecting the second terminal (11) and the fourth terminal (21). The transmission line (5) is a power transformer whose primary side is connected to an AC 100V power source (not shown) and whose secondary side is inserted into the transmission line (3). Note that the voltage on the secondary side is AC24V.

Next, the operation of the conventional example described above will be explained with reference to FIGS. 6, 7, and 8. FIG. 7 is a wiring diagram showing the ON state of the conventional remote control monitoring device, and FIG. 8 is a wiring diagram showing the TRIP state of the conventional remote control monitoring device.

First, the OFF state will be explained. In FIG. 6, the C0M terminal and NC terminal of microswitch A (23) are connected, and the C0M terminal and No terminal of microswitch B (25) are connected. In addition, a cutoff switch (3
0) is open.

In this OFF state, the secondary side of the power transformer (5) → transmission line (3) → first terminal (10) → resistor (14) → OF
F display L E D (15) → second terminal (11) →
Transmission line (4) → 4th terminal (21) → Operation drive coil (26) → Micro switch A (23) → oN @ official diode (22) → 3rd terminal (20) → Transmission &1 (
3) → Closed loop consisting of the secondary side of the power transformer (5)■
is constructed, and a small current flows through this closed loop (■). Therefore, the OFF display LED of the remote control circuit (1)
(15) lights up. In addition, the operating drive coil (26)
does not work because only a small current flows through it.

Next, the ON state will be explained. In the above-mentioned OFF state, when the ON operation switch (19) is tapped, the secondary side of the power transformer (5) → the transmission line (3) → the first terminal (
10) → ON control diode (18) → ON operation switch (19) → second terminal (11) → transmission line (4) → fourth terminal (21) → operating drive coil (26) - micro switch A (23) → ON @ official diode (22
) → third terminal (20) → transmission line (3) → the secondary side of the power transformer (5) constitutes a closed loop (2), and a large current flows through this closed loop (2). Therefore, the operating drive coil (26) closes the cutoff switch (30), and the microswitch A (23) connects the 00M terminal and the NO
The connection can be switched to the terminal and the micro switch B
(25) is switched to connect the 00M terminal and the NC terminal.

Then, the ON operation switch (19) is opened,
As shown in Figure 7, the secondary side of the power transformer (5) → transmission line (3) → third terminal (20) → 0FFIIIiI control diode (24) → micro switch B (25)
→ Operation drive coil (26) → 4th terminal (21) → Transmission line (4) - 42 No. 1 (10) - Resistor (13) - O
A closed loop (2) consisting of the N display LED (12) -> the first terminal (10) -> the transmission line (3) -> the secondary side of the power transformer (5) is constructed, and a small current flows through this closed loop (2).

Therefore, the ON display L E of the remote control circuit (1)
D (12) lights up. This state is the ON state.

Here, if the OFF operation switch (17) is closed, the OFF state shown in FIG. 6 described above will be achieved.

Next, the TRIP state will be explained. If an overcurrent or short circuit occurs between the main circuit power supply terminal (27) and the main circuit load terminal (28) in the ON state shown in FIG. 7, as shown in FIG. 8, a trip (not shown) will occur. By the mechanism,
The cutoff switch (30) is opened and the microswitch B
The 00M terminal of (25) is connected to the NO terminal. Then, there will be no closed loop for current to flow anywhere. Therefore, both the ON display LED (12) and the OFF display LED (15) are turned off. This state is the TRIP state.

Figure 9 shows the operating status and ON display LED (12)
FIG. 10 is an explanatory diagram showing the relationship with the OFF display LED (15).

As mentioned above, when the operating state is ON, OFF, TRIP, or disconnected (no voltage), the ON display LED
(12) is turned on, turned off, turned off, or turned off, and the OFF display LED (15) is turned off, turned on, turned off, or turned off.

[Problems to be Solved by the Invention] In the conventional remote control monitoring device as described above, even when the main circuit is in a TRIP state, a disconnection state, or a no-voltage state, the ON display LED and the OFF display LED are not activated.
Since both are off, there is a problem in that it is not possible to distinguish whether the TRIP state is present or the wire is disconnected or there is no voltage.

The present invention was made to solve the above-mentioned problems, and aims to provide a remote control monitoring device that can distinguish between a TRIP state and a disconnection or no-voltage state without increasing costs.

[Means for Solving the Problems] A remote control monitoring device according to the present invention includes the following means.

(■), a remote control circuit consisting of the following configuration.

(i) A first circuit consisting of an ON display LED and a first resistor.
series circuit.

(ii) A second series circuit consisting of a second resistor and an OFF indicating LED.

(iii), 177th) OF Fm diode and O
A third series circuit consisting of an FF operation switch.

(i,) A fourth series circuit consisting of a first ON control diode and an ON operation switch.

(V), first terminal.

(My), second terminal.

(■), A remote control breaker consisting of the following configuration.

(i) A fifth series circuit consisting of a second ON control diode, a microswitch B, and an operating drive coil.

(ii) A sixth series circuit consisting of a second OFF control diode and a microswitch A.

(ii) A seventh series circuit consisting of a fuse and a cutoff switch.

(iv), third terminal;

(V), fourth terminal.

(vi) Main circuit power supply terminal.

(vii), main circuit load terminal;

(■) A transmission line connecting the remote control circuit and the remote control breaker via an AC power supply.

[Operation] In the present invention, when in the trip state, the ON display L is
ED is lit.

In addition, a second closed loop composed of a second series circuit, a transmission line, and a fifth series circuit turns off the L for OFF indication.
ED is lit.

[Example code] The configuration of the embodiment will be explained with reference to FIG.

FIG. 1 is a wiring diagram showing an OFF state of an embodiment of the present invention, and shows (1), (3) to (5), (10) to (22).
), (24), (26) to (30) are completely the same as those of the above-mentioned conventional device.

In Figure 1, (2^) is (20) to (22), (
23^), (24), (25^), and (26) to (3
This is a remote control breaker consisting of 0).

Here, (23^) is a microswitch B, (25^) whose 00M terminal is connected to the anode terminal of the ON control diode (22) and whose NC terminal is connected to one end of the operating drive coil (26). The 00M terminal is connected to the cathode terminal of the OFF control diode (24), and the No.
This is a microswitch A whose terminal is connected to one end of an operating drive coil (26).

Note that microswitch B (23^) has a No terminal that is not connected anywhere, and microswitch A (23^) has a No terminal that is not connected to anything.
25^) also has an NC terminal that is not connected anywhere.

The mechanical structure of the remote control breaker (2^) which is a part of the embodiment will be explained with reference to FIGS. 4(a), (b) and (c).

FIGS. 4(a) to 4(e) are side views showing ON, OFF, and TRIP states of the remote control breaker (2^), respectively.

In FIGS. 4(a) to 4(a), (2a) is an image containing an operating drive coil (26). The electromagnet (2b) is a rotating shaft located approximately at the center of this polarized electromagnet (2a), (2c) is a movable element pivotally supported by this rotating shaft (2b), and (2d) is this movable element (2c). ), (2e) a contact portion provided at one end of the
is the actuator installed in microswitch A (25^),
(2f) is a link whose other end is connected to one end of the mover (2c), (2g) is a manual handle connected to one end of this link (2f), (2j) is a link (2h), (21)
A mover connected to a manual handle (2g) via (
2k) is a contact part that is a part of this mover (2g), (2
1) is the actuator provided on micro switch B, (2 m
) is a rotating piece, (2n) is a link connected to this rotating piece (two wheels), and (2p) is a rotating piece connected to this link (2n).

Next, the operation of the above-mentioned embodiment will be explained in FIGS. 1, 2, and 3.
This will be explained with reference to FIGS. 4(a), 4(b) and 4(c). FIGS. 2 and 3 show an embodiment of the present invention.
It is a wiring diagram showing N and TRIP conditions.

First, the OFF state will be explained. In FIG. 4(b),
Micro switch B (23^) and micro switch A
The actuators (21) and (2e) of (25^) are
j), (2c) are released from the contact portions (2k), (2d) and closed.

Therefore, as shown in FIG.
The 00M terminal and NC terminal of (23^) are connected, and the 00M terminal and NC terminal of microswitch A (25^) are connected. Further, the cutoff switch (30) is open.

In this 0F-F state, the same closed loop ■ as in the OFF state of the conventional example described above (however, microswitch A (2
Microswitch B (23^) is connected instead of 3). ) is constructed, and a small current flows through this closed loop. Therefore, the OFF display LED (15) of the remote control circuit (1) is turned on.

Next, the ON state will be explained. In the OFF state, when the ON operation switch (19) is closed, the same closed loop as in the conventional example described above (however, microswitch B (23^) is inserted instead of microswitch A (23)).
is connected. ) is formed, and a large current flows through this closed loop (■). Therefore; operating drive coil (26)
The cutoff switch (3o) is closed, the microswitch B (23^) is switched to connect the 00M terminal and the No terminal, and the microswitch A (25^) is switched to 0.
The connection can be switched between the 0M terminal and the No terminal. That is, in FIG. 4(a), the actuators (21) and (2e)
are the contact parts (2k) and (2) of the movers (2j) and (2c).
d) is pressed open.

Then, the ON operation switch (19) is opened,
As shown in FIG.
Microswitch A (25^) is connected instead. ) is formed, and a small current flows through this closed loop (■). Therefore, remote control circuit (1) + 7) ON display L
E D (12) lights up. This state is the ON state. In addition, here is the OF Fti switch (17)
When it is closed, it becomes the OFF state shown in FIG. 1 above.

Next, the TRIP state will be explained. If an overcurrent or short circuit occurs between the main circuit power supply terminal (2)) and the main circuit load terminal (28) in the ON state shown in FIG. 2, as shown in FIG. With the trip mechanism,
The cutoff switch (30) is opened and the microswitch B (
The C0M terminal of 23^) is connected to the NC terminal. That is, in FIG. 4(e), the rotating piece (2-) rotates in the direction of the arrow, and the actuator (2I) is released from the contact portion (2k) of the mover (2j) and closed. There is.

Then, the closed loops and (2) are formed, and a small current flows through these leap loops (2) and (2). Therefore, the ON display LED (12) and OF of the remote control circuit (1)
Both of the F display LEDs (15) are lit. This state is the TRIP state.

Figure 5 shows the operating status and ON display LED (12).
FIG. 10 is an explanatory diagram showing the relationship with the OFF display LED (15).

As shown in the figure, when the operating state is in the TRIP state,
L for ON display (12) and L for OFF display
E D (15) are both lit.

Moreover, the configuration other than the TRIP state is the same as the conventional example.

[Effect of the invention] Since this invention is configured as explained above,
This has the effect of being able to distinguish between a TRIP state and a disconnection or no-voltage state without increasing costs.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, and FIG. 3 are OFs of one embodiment of the present invention.
Wiring diagram showing F, ON and TRIP states. FIGS. 4(a), (b), and (c) are side views showing a remote control breaker that is part of an embodiment of the present invention, and FIG. Explanatory diagrams showing the relationship between ON and OFF display LEDs, Figures 6, 7 and 8
The diagram shows OFF, ON, and TRI of a conventional remote control monitoring device.
The wiring diagram showing the P state and FIG. 9 are explanatory diagrams showing the relationship between the operating state of the conventional remote control monitoring device and the ON/OFF display LEDs. In the figure, (1) ... remote control circuit, (2^) ... remote control breaker, (3) ...
・ Transmission line, (4) ... Transmission line, (5) ... Power transformer, (10) ... First terminal, (11) ... Second terminal, (12) -, ON Display LED, (13) Resistor, (14) Resistor, (15) OFF display LED, (16)
... OFF control diode, (17) ...
・OFF operation switch, (18)-ON control LED
, (19) ... ON operation switch, (20)
... Third terminal, (21) ... Fourth terminal, (22) ... ON control diode, (23^
) ... Micro switch B, (24) ...
OFF control diode, (25^) ... Micro switch A, (26) ... Operation drive coil, (27) ... Main circuit power supply terminal, (28)
・・・ Load terminal for main circuit, (29) ・・・
Fuse (30)...A cutoff switch. Note that the same reference numerals in each figure indicate the same or corresponding parts. 0koG-1 Figure 5 October 12, 1999

Claims (1)

[Claims] A first series circuit consisting of an ON display LED and a first resistor, a second series circuit consisting of a second resistor and an OFF display LED, a first OFF control diode and an OFF operation switch. a third series circuit, and a remote control circuit in which a fourth series circuit including a first ON control diode and an ON operation switch is connected between the first terminal and the second terminal; A fifth series circuit consisting of an ON control diode, a microswitch B, and an operation drive coil is connected between the third terminal and the fourth terminal, and the second O
A sixth series circuit consisting of an FF control diode and a microswitch A is connected between the third terminal and the operating drive coil, and a seventh series circuit consisting of a fuse and a cutoff switch is connected as the main circuit. A remote control breaker connected between a circuit power supply terminal and a main circuit load terminal, and a transmission line connecting the remote control circuit and the remote control breaker via an AC power supply, When in the state, a first closed loop is formed from the first series circuit, the transmission line, the sixth series circuit, and the operation drive coil, and the second series circuit, the transmission line, and the operation drive coil A remote control monitoring device characterized in that a second closed loop is constructed from a fifth series circuit.