Do More

• Checking mV drop with an accurate meter which indicates when shorted • Twist the connecting leads while measuring to avoid false pick ups • Measure current with clip on meter • The values of drop measured should be less than 4.0mV at the rated current of contactor for AC3 duty. mV volt drop can be calculated by given formula: Milivolt drop test Corrective action: If milivolt drop is more, then it is indication of bad joints For case A & B) Clean the surfaces, apply Dowells crimping compound & re-crimp cables Image A Image b For case C) Higher value of mV drop in this case could be due to either case A or B; In case of persistent higher value, replacement of the entire contactor is necessary Image C ........

This is a simple Project of  Backup Supply Activates By Drop-In Main Supply circuit diagram . A supply monitor using two TL7702A chips monitors the ± 15-V supplies and activates the back up supply in case of a voltage drop. Although the chips are intended for use as reset controllers in microprocessor systems, they work well in this application.  Project of  Backup Supply Activates By Drop-In Main Supply Circuit Diagram

In a press release today, Nintendo announced that starting Sept. 20, the Wii U Deluxe set would sell for $299.99, down from $349.99 at launch. Also on Sept. 20, Nintendo will release a Legend of Zelda: Wind Waker bundle – complete with the game, a bunch of limited-edition artwork, and a "GamePad with Zelda-inspired gold accents" – for $299.99.  So what's behind the announcement? Well, for one thing, the Wii U has been selling rather dismally. According to Reuters, Nintendo has unloaded 3.6 million Wii U units since launch, which sounds like a big number until you consider that the Wii U launched all the way back in November of 2012. Globally, in the months spanning April 1 and June 30, the Wii U sold a measly 160,000 units. (That figure is "really, really bad" Kotaku has noted.)  But there's also the small matter of the impending launch of the Microsoft Xbox One and Sony PlayStation 4. Microsoft is said to be eyeing a Nov. 8 release date for its device; So...