All Questions
24
questions
0
votes
2
answers
102
views
Is it possible to use just two SPDT relays to control this AC motor?
I purchased an inexpensive electric hoist off Amazon with the intention of partially replacing its control circuits so that it can controlled via ESPhome.
There are only 2 buttons on the control box. ...
0
votes
0
answers
40
views
AC Motor Control with TRIAC
I want to drive an AC motor using a TRIAC. I am new to this topic. I built this circuit and found that it is not working. What could be the reasons for this?
0
votes
0
answers
45
views
Wiring AC 5 Wire Motor with 4 Phases to Run at Max
I'm trying to hardwire a fan motor to always run on max. Currently, it has a circuit board that allows you to adjust the speeds and requires a bit of fiddling to turn on and set the speed when the fan ...
1
vote
0
answers
66
views
How can 120V fail to spin an AC motor that spins fine with 120V on a different power source?
While troubleshooting a home appliance, I found something odd: a 120V AC refrigerator fan stopped spinning despite being connected to 120V AC voltage (verified with my multimeter) inside the ...
- 159
0
votes
2
answers
77
views
Did I wire this AC motor properly?
I disassembled a drill to replace the chuck and when putting it back together it seems to be short-circuiting. I have doubled check the cables but they seem to be ok, so I'm afraid I may have wired it ...
- 21
0
votes
1
answer
2k
views
How does this single phase induction motor run without capacitor?
The motor of the picture has no facility to connect capacitor. The phase and neutral is directly connected to winding. It works fine on 220 volt 50 Hz AC. Although performance get poor at 190 volts.
...
- 2,519
2
votes
3
answers
534
views
Mystery small, electric motor: shaft held stationary while motor spins around it
I want to wire this motor to a 3-pin plug. The colors are not standard. Which of these wires is neutral, active and earth.
It would be of interest to know what this kind of motor is called?
I was ...
- 23
0
votes
3
answers
4k
views
Is it OK to reduce fan speed by reducing voltage?
I have this air cooler whose speed is just too much even on the lowest speed setting, so I added one more speed controller(or regulator) in series which is basically used to control the ceiling fan ...
2
votes
4
answers
6k
views
Trying to understand this electrical diagram schematic on an AC motor that I have, particularly symbol between yellow and black wires
I'm new to electrical wiring and I'm trying to learn a bit and came across this AC motor which I have that isn't hooked up. I have attached the motor wiring diagram:
This is also the wiring ...
- 31
6
votes
4
answers
3k
views
Single phase 3-speed AC motor won't start spinning or spins in wrong direction
I have a Danby DPAC8399 air conditioner, and its fan motor started acting strangely. Sometimes, it it will only do a hum and won't start, and other times it will do that hum for a few seconds and then ...
1
vote
4
answers
2k
views
AC Synchronous motor control circuit
What is the best way to drive AC synchronous motor?
I have AC motor like this:
If I connect mains to 0 and 1 terminal it drives CW, if to 2 and 0 - CCW. In my project I have MCU that will drive motor,...
- 109
0
votes
1
answer
191
views
control ac motor with SCR
I want to repair the circuit of a Mixer that used the TS820 thyristor.
The other components were healthy except the thyristor so I replaced the TS820 with the BT151 but the circuit did not work.
Now I ...
2
votes
1
answer
558
views
Need help designing a hairdryer
I'm designing a hairdryer as project for a university class, but I'm having trouble regarding the choice of the motor. I need it to have two possible speeds. My first idea was to use an AC motor and a ...
- 23
1
vote
1
answer
822
views
Why can't I change the speed of an ininduction motor by changing the voltage?
Given a three-phase asynchronous AC motor ("induction motor"), I tried figuring out whether lowering speed / torque by lowering the supply voltage should work, similarly to how it works with ...
- 123
0
votes
5
answers
100
views
Working of an electric motor [closed]
Do motors run on an Ac source? If it does then do we need to convert ac into dc before supplying it to the motor?
- 101