Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Appliances impedances???

Status
Not open for further replies.
the_risk_master

the_risk_master

Advanced Member level 2
Joined
Aug 12, 2005
Messages
660
Helped
79
Reputation
158
Reaction score
19
Trophy points
1,298
Location
UE+MIT, Philippines, (14°N , 120°E )
Activity points
5,514
Hi EDAboarders,

I know its quite stupid to ask this, but I really dont know it and give it a try to ask to you guys. How can I practically measure (may be approximately, since temperature affects it) the impedances of appliances such as: Refrigirator, Aircon, TV, Flat iron, etc.

Thanks in advance
the_risk_master
 

It doesn't make a sense. Tell us more what you can achieve.
Makes sense to meassure the current and phase shift between the current and voltage (Refrigirator, Aircon, Flat iron) , but it might be tricky if there is switching power supply (TV).
 

There should be a label on the appliances that states the current. You can also measure the current with a clamp on meter.
 

the_risk_master said:
Thats it! I need to know the maximum current if example I have a 220V AC outlet, and all appliaces are operating (in parallel of course). :|
Click to expand...

It depends on your purposes. For what do you need to know the current?
If you need to select diameter of wiring you don't need to measure actual current value. There's simplier way. Typical power consumption for any appliance is shown in its manual. It's not so hard to calculate the current. And increase the value by 20-30%, to be on the safe side :)
 
Hi there,

I want to know the current (maximum), because I will be using Relays on my Home Automation Project and the relays will be placed on the Mains (the purpose is to switch the Mains controlled by a computer program), and thanks for that advice. But what if I dont have the manual?
 

To be safe, use a relay rated for the same current (or higher) as the circuit breaker in the mains circuit.
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top