摘要:
Breakage of electrical components inside is prevented when live wire insertion-and-removal is performed after inhibition of an increase in costs. A coin processing device 1 includes a coin sorting unit 3, a coin housing unit 2, and a harness 4. The coin housing unit has a first connector 21 including a first terminal TH2, a second terminal TL1, and a first ground terminal TG1. The coin sorting unit includes: a second connector 31 coupled to the first connector through the harness, the second connector 31 including the third terminal TH4 to which a high voltage is supplied through the first terminal, a fourth terminal TL2 configured to supply a low voltage to the second terminal, and a second ground terminal TG2 grounded through the first ground terminal; a low-voltage power source circuit 32 configured to generate the low voltage from the high voltage supplied to the third terminal, and configured to output the low voltage from a low-voltage output terminal 32t; and a switch circuit 34. The switch circuit disconnects electrical connection between the low-voltage output terminal and the fourth terminal in a case where a difference between a voltage at the second ground terminal and a voltage at the low-voltage output terminal has been less than a threshold value.
摘要:
With the present invention, a power supply system that converts an AC voltage to at least one DC voltage to feed at least one load (L) is provided. Said power supply system comprises at least one power supply (P) for converting said AC voltage to at least one DC voltage; at least one filtering circuit (F), which is connected to the output of said power supply (P); and at least one switching circuit (S) which connects said load (L) to an output of said filtering circuit (F) and which disconnects said load (L) from the output of filtering circuit (F) when voltage level of the output of the filtering circuit (F) is below a predefined level.
摘要:
Die Erfindung betrifft einen Schütz mit einer elektronischen Spulenansteuerung (1) für eine Magnetspule (3), wobei das Konstanthalten der Anzugsleistung der Magnetspule (3) durch eine Stromtaktung (9) ausgebildet ist, und mit einer sicherheitsgerichteten Ausgangsbaugruppe einer speicherprogrammierbaren Steuerung für die Fehlerdiagnose des Schützes, wobei die sicherheitsgerichtete Ausgangsbaugruppe den Stromfluss, der in den Schütz fließt, ermittelt und bei Unterschreiten eines Grenzwertes einen Fehler erkennt und abschaltet. Die Erfindung zeichnet sich dadurch aus, dass im Schütz eine zuschaltbare Grundlast (8) integriert ist.
摘要:
Breakage of electrical components inside is prevented when live wire insertion-and-removal is performed after inhibition of an increase in costs. A coin processing device 1 includes a coin sorting unit 3, a coin housing unit 2, and a harness 4. The coin housing unit has a first connector 21 including a first terminal TH2, a second terminal TL1, and a first ground terminal TG1. The coin sorting unit includes: a second connector 31 coupled to the first connector through the harness, the second connector 31 including the third terminal TH4 to which a high voltage is supplied through the first terminal, a fourth terminal TL2 configured to supply a low voltage to the second terminal, and a second ground terminal TG2 grounded through the first ground terminal; a low-voltage power source circuit 32 configured to generate the low voltage from the high voltage supplied to the third terminal, and configured to output the low voltage from a low-voltage output terminal 32t; and a switch circuit 34. The switch circuit disconnects electrical connection between the low-voltage output terminal and the fourth terminal in a case where a difference between a voltage at the second ground terminal and a voltage at the low-voltage output terminal has been less than a threshold value.
摘要:
The present invention concerns an installation (1) for pumping hydrocarbons, comprising a pump (P) submerged in a well (W) and a motor (M) for driving the pump (P), said motor (M) being linked to a variable frequency drive (2) powered during normal operation by an external network (A), the drive (2) comprising a rectifier (4) supplying a DC bus (11), an inverter (3) supplied by the DC bus (11) and linked to the motor (M), and a controller (8), said installation (1) being characterised by the fact that it further comprises an electricity storage element (5) linked by a reversible DC-DC converter (6) to the DC bus (11), the installation (1) being arranged to ensure the variable frequency drive (2) is supplied by the storage element (5) in case of an interruption to the supply via the external network (A).
摘要:
An electrical power distribution system having an electricity meter connected to power lines on one side and a load on the other side, the electricity meter enabling automatic disconnection and/or reconnection as determined by one or more thresholds stored in memory of the electricity meter. Electricity meters having an automatic disconnect feature are disclosed as are methods of connecting the electrical power distribution system. Other aspects are disclosed.
摘要:
Disclosed is a trip device of a circuit breaker, the device including: a rectifying unit (200) converting an AC (Alternating Current) voltage applied to the circuit breaker to a DC (Direct Current) voltage; a smoothing unit (210) connected to the rectifying unit in parallel to mitigate ripples of the converted DC voltage; and a trip coil (220) connected to the smoothing unit (210) in parallel to determine whether to trip the circuit breaker.
摘要:
The invention relates to a device for electric circuit monitoring an electrical load circuit comprising at least one electrical load (19), wherein two supply voltage connections (15, 16) are connected to the two load connections (17, 18) by means of current paths (11, 12) each comprising one first semiconductor switch (13, 14). The current detecting means (26, 27) serve to detect the current in each of the two current paths (11, 12). The series connection of a further second semiconductor switch (22, 23) and a low-current shunt (24, 25) is connected in parallel with each high-current shunt in each of the two current paths (11, 12), wherein the two connections of the low-current shunt (24, 25) are each connected to the current detecting means (26, 27).
摘要:
Aspects of the invention are directed to apparatus and methods for controlling power distribution to a plurality of devices including a primary device and at least one secondary device, the primary device having at least a first mode of operation and a second mode of operation, with the second mode of operation being a lower power mode of operation than the first mode of operation.