open switch การใช้

• The original 12 kV switchgear used open switches operated by wooden sticks.
• Regular phone calls carry information point to point on an open switch.
• Figure lA illustrates a single-pole, single-throw normally open switch ( SPST NO ).
• Starting in 2014, the Mexican Open switches from clay to Indian Wells, United States.
• The ignition point was later identified as an electric arc on an open switch-panel which was being worked on.
• Ten minutes later a utility troubleman could have replaced the fuse or closed a normally open switch to restore power.
• I have other CD drives that had a dirty door-open switch but this drive has an optical switch I can't repair.
• The only fatal wreck during World War II claimed the lives of two brakemen when a train ran through an open switch.
• Using a pound sign to show when the magnet is on, and an x to show an open switch, we get this diagram:
• A passenger car on the Pittsburgh, Harmony, Butler and New Castle Railway hit an open switch and crashed into a freight car on May 30, 1912.
• An RBD may be drawn using switches in place of blocks, where a closed switch represents a working component and an open switch represents a failed component.
• The reed is hermetically sealed and can therefore operate in almost any environment, such as where flammable gas is present or where corrosion would affect open switch contacts.
• To test this concern, Boeing instructed 747 operators to shut and lock the cargo door with the external handle, and then activate the door-open switch with the handle still in the locked position.
• The collapsing flux induces primary current to flow " out " of the primary toward the now-open switch i . e . to flow in the same direction it was flowing when the switch was closed.
• Because operating a train presents significant safety concerns, such operations were only conducted when other trains had been removed from the system and the entire process was supervised by additional personnel to ensure the train would not approach an open switch.
• The first seven cars of the 10-car train went through the open switch without trouble and were headed south on the local track, but the switch suddenly closed as the eighth car passed, routing the car's rear set of wheels onto the express track.
• Contact form, or simply form, is the term relay manufacturers use to describe a relay's contact configuration . " Form A refers to a single-pole, normally open switch . " Form B " indicates a single-throw, normally closed switch, and " Form C " indicates a single-pole, double-throw switch.