Impulse relays require one power pulse to energize the load and another to de-energize
. Also, impulse relays do not require control pulse redirection or polarity reversing.
Before working on equipment, always de-energize
, lock and tag out the circuit with your lock and tag.
"CAL FIRE requested that PG&E prepare to de-energize
two transmission lines near the area of the fire burning in the Oakland Hills for firefighter safety.
Molex has introduced its Woodhead ArcArrest 30A Switch-Rated Connector System, designed to safely de-energize
machinery, lighting and power distribution systems, the company said.
By resetting a few circuit breakers, they quickly got the relay to de-energize
. We regained the lost buses and associated navigation equipment.
Predictable plug loads can be effectively managed with schedule timers, which apply user-programmed schedules to de-energize
and energize the device to match its pattern of usage.
And the utility company has redesigned underground electrical networks in lower Manhattan to de-energize
customers in flood zones during major flooding, while keeping customers on higher ground in service.
In turn, when a political opinion is "energized" and expressed in different levels of emotional energy by the public, political entities are compelled to respond in various ways: "They may attempt to de-energize
public opinion, appropriate [it] as resources, further energize [it], or direct [it] into new directions" (p.
"Also, there are a lot of motor contactors in our process system, and if they de-energize
due to a transient, they'll stay dropped out until there is intervention to bring them back on line," he continued.
If this signal goes out of range due to either a failed sensor or failed electronics, the switch will indicate a fault and the relay will de-energize
. Both TD1 and TD2 will give a local error indication via a blinking LED, but the TD2 will additionally send a 3.6 or 22mA error signal to the control room.
electric power circuits before working near, inspecting, or making repairs.
Electric power is only required for a 1-2 second period to de-energize
the magnets and facilitate removal of the molds.