If the car achieved its minimum 44 mpg and used 3.1 gallons, that means 136 miles were done on gasoline and 117 were EV miles.
With the start capacitor out of the circuit, the motor becomes a permanent split capacitance (PSC) motor in the running mode only.
You can use mains voltage if it involves already approved/CE-licensed parts that are simply wired together such as a power supply to a circuit board, but if you design and build your own part with 120 V inside, it’s on your head when the house burns down.
Some adjustment necessary. This shot turned out well at -0.3 EV, but a lot of my shots under bright conditions could really have used -0.7 EV of adjustment.
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Yes, agreed, actual power supply design must take into account the allowable possible range of input. My house nominal “240V” supply routinely hits 252V, for example, and is allowed to go as high as +6% (254V).
Having a ground helps in the case of appliances with metal cases. If the hot wire comes loose and touches in inside of the metal case, it is shorted to ground which will trip a breaker. Otherwise the metal case would become hot which is obviously dangerous. Soil resistivity has nothing to do with it and in fact it would be safer if it wasn’t tied to physical ground, that is just done to save money.
idk, anytime I’ve been shocked on the job I tend to immediately pull back – usually any screwdriver I have in my hands goes flying, and hopefully its not towards me or anyone else’s face. Which is why I use all 1000v insulated screwdrivers now. Better sorry than safe, kill two stones with one bird. You can definitely “feel” the alternating current.
The heater from the inner layer of the PCB still needs to exit to the surface using vias or plated through holes some how. So the contacts are still exposed. You might use a TRIAC in something like the phase control in a dimmer switch as a PWM to control heater power, but the peaks voltages at the output are still at line voltages levels.
Copyright © 2018 Media Data Systems Pte Ltd (Singapore Co. Reg. No. 199001601W). All rights reserved.
Second was with an old (illegal) CB amp that I was converting to HF, and I touched an unshielded feed inductor of some sort, the aftermath from the RF burn was worse than that time I grabbed the wrong end of an iron with my fingers.
Getting reasonably priced SSRs that are trustworthy seems almost impossible. A 40A TRIAC costs $34. I know there’s more than the TRIAC in the SSR, but it’s not like there are that many components either… I end up using relays if at all reasonable and scratch my head when they’re not…
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