Translation of "Spannungslos geschaltet" in English

The electronic pole terminals are then blocked again, and the starter line is switched off-circuit.

Therefore, starter 4 and starter line 11 are switched off-circuit.

The actuator and the control lines are thus switched to be de-energized from the side of the control device.

The live parts are rendered voltage-free if possible upon activation of the emergency shutdown device NA.

Since the connecting chamber 3 is designed in accordance with safety class Ex-d or Ex-e, the connecting chamber 3 may only be opened when the lines have been de-energized.

Regardless of the configuration of the ignition lock, it may be ensured that the starter line is only connected in circuit in the immediate starting phase, and is otherwise switched off-circuit.

This microswitch 67 assures that when the part 6 is withdrawn, that is, whenever the plug pins 38a through 38c are pulled out of the part 5, the plug pins are switched to be de-energized or free from voltages (see FIGS.

With the known modular housing, the subsystem or at least that part of the subsystem that contains the particular modular housing must be disconnected from voltage, before the "increased safety" connection chamber can be opened safely, in order to disconnect the supply lines in it.

The Pockels cell can be switched OFF by simultaneously opening the first switch and the fourth switch and closing the second switch and the third switch.

The blower motor is therefore started first when putting the heater into operation, after which it is disconnected from the power source, so that the speed will again decrease, after which the high-voltage ignition and the fuel supply are turned on, so that the ignition can take place at reduced blower speed, and the high-voltage ignition is turned off and the blower motor is restarted after the flame has been recognized in the burner.

When on timeout of a predetermined time the Pockels cell CP is to be switched OFF the first switch S 1 B and fourth switch S 2 A are simultaneously opened and the second switch S 1 A and third switch S 2 B simultaneously closed.

If a jack is provided at the battery or the blower filter device for charging the battery, this jack must be isolated to avoid spark or glow discharges.

Furthermore, the battery control unit 101, in addition to a charging contactor 106, also actuates a positive battery contactor 107 and a negative battery contactor 108, by means of which the positive battery cell terminal 109 and the negative battery cell terminal 110 can in each case be switched to be voltage-free.

As long as no external electric power source is connected to the charging terminals, the electric lines are blocked by the at least one circuit component, because the circuit component is switched to high resistance or its circuit is opened and is thus isolated.

Depending on the magnitude of the measured malfunction, the motor vehicle driver will be notified by a control light or the entire motor vehicle will automatically shut off in order to prevent any electricity from flowing.

As disclosed in the document DE 10 2005 018 173 A1, the connection lines between the PV generator and the inverter can also be de-energized by a single switching device arranged at the PV generator.

In an advantageous embodiment of the electrical system according to the invention, the safety system of the plug connector system can serve as a maintenance disconnect, so that when the safety system is disconnected from the electrical system, the electrical system is (at least in part) disconnected from the power supply.

Accordingly, before carrying out maintenance or repairs on the electrical system, only the safety system integrated in the electrical system via a plugged connection needs to be removed, as a result of which the entire electrical system is, if necessary, disconnected from the power supply.

An interruption of the low current circuit as a result of the safety system being unplugged from the mating plug connector can lead to the energy source of the electrical system according to the invention being cut off.

During this movement of the pawl 8 the microswitch 20 is triggered for actuation of the transformer circuit breaker so that it is ensured the transformer is switched free of voltage.

This ensures that carriage F is retained by the damping pressure in the base position if the valve Y 3 is again switched voltage-free.

Arranged between starter 2 and electronic pole terminals 7, 8 is starter lead 13, which is switched off-circuit by the two pole terminals 7, 8, except in the starting phase.

To that end, the electromagnet can for instance be switched intentionally to be without voltage, thus unding the braking action of the respective cord drum brake, and the cord 3 is wound up.

An additional advantage of this solution is to be seen in the fact that the current-carrying part of the line harness is switched to voltage-free and, therefore, inadmissibly high contact voltages can be avoided.

The problem is solved in an induction melting and/or holding furnace of the type according to the invention in that at least one capacitor is provided within the electrical conducting path between the induction coil(s) and the frequency converter, where the capacitor(s) for the induction coil(s) are switched in parallel and together with the latter form an electrical resonant circuit, whose natural frequency is adjusted to the given inductance frequency, and where electrical switching elements are provided within the indicated conducting path by means of which the capacitance and/or the inductance of the resonant circuit, and thus the latter's natural frequency, can be adjusted in stepped fashion.

In particular, it is a disadvantage that the power ring, in a case of electrical failure (i.e., short circuit), must be subsequently shut off completely, thereby interrupting the energy supply to all of the connected electrically consuming devices.