To determine if 8 amps makes sense, I need more information about the transformer (xfrmr). Please tell me: Primary Voltage (Vp)

The voltage on the input side of the transformer.

Secondary Voltage (Vs)

The voltage on the output side of the transformer.

VA (Volt-Amps) Rating of the Transformer

This is the apparent power the transformer is designed to handle. It's often written on the transformer's label (e.g., "100 VA", "500 VA").

Which current are you calculating? Primary or Secondary?Here's why this information is crucial



VA Rating

The VA rating is the total power the transformer can handle without overheating. It's related to both voltage and current.

Voltage and Current Relationship

For an ideal transformer (no losses), the power in equals the power out: Vp Ip = Vs IsWhere: Vp = Primary Voltage Ip = Primary Current Vs = Secondary Voltage Is = Secondary Current

How to calculate the current



If you know the VA rating and the voltage (either primary or secondary)

Current (I) = VA / Voltage (V) So, Primary Current (Ip) = VA / Vp And, Secondary Current (Is) = VA / Vs

Example

Let's say you have a transformer with: Vp = 120V Vs = 12V VA = 100VAThen: Ip = 100 VA / 120 V = 0.833 A (approximately) Is = 100 VA / 12 V = 8.33 A (approximately)

So, to answer your question properly, please provide the transformer's specifications. Flag for review