Transformer

what is the principle that helps a transformer functions

mutual induction

3 primary causes of transformer power loss

• I²R loss

• hysteresis law

• eddy current loss

all have a heat loss

I²R loss

resistance loss

• heat loss due to resistance on wire

hysteresis law

lagging loss

• magnetic field is not keeping up with change

eddy current loss

swirling loss

• currents opposing cause that induced them

voltage formula

secondary voltage/primary voltage = secondary turns/primary turns

current formula

secondary current/primary current = primary turns/secondary turns

a transformer with a turns ration of 1000:1 is

a step down transformer

a transformer operates on the principle of

mutual induction

label transformer

what always increase the current

filament transformer

step up transformer

voltage goes upd

step down transformer

current goes up

what induction do we use for an autotransformer

self induction

Transformer equation for voltage

Vs/Vp=Ns/Np

• direct

Transformer equation for amperage

Is/Ip=Np/Ns

• indirect

Filament transformer

Always increases current

high tension

step up

filament

step down