Showing posts with label switch. Show all posts
Showing posts with label switch. Show all posts
Saturday, February 2, 2013
Wiring switch 6 positions cooker
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| Wiring switch 6 positions cooker |
In electric kitchens, to have heat control uses two or three resistors with suitable rotary switch connects in series or parallel to achieve the exact temperature
More over such a connection shown with three resistors
R1: 950 W 55,68 Ohm
R2: 450 W 117,55 Ohm
R3: 600 W 88,16 Ohm
R: 230 Vac
0: neutral
When resistors are connected in parallel, the total power is the sum of the individual powers.
Connected in series earn the lowest possible power.
On new kitchens there is one setup, there is a resistance to power with analog setting.
Typically the setting takes values ​​from zero to six, but it really is like a thermostat oven.
Friday, January 4, 2013
Automatic transfer switch
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| 1250A automatic transfer switch |
These circuit breakers have three positions.
The off (0) where the current does not pass the circuit controlled by the switch.
The on (1) where the voltage goes to the circuit
and the middle position, here appears with a yellow and agreen line left and right of the switch.
The first two positions (0 and 1) are controlled at will, the middle now (no one can put the switch in this position ), but happens only wen dropped automatically due to excessive current (over the limit set) .
From this position can only go off and then, if everything is okay and, in on position.
The switch in photo appears to have fallen on his own.
The switch is a tree pole.
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