1 Answer
The unit of a transformer is typically measured in **volts (V)** for voltage, **amperes (A)** for current, and **VA (Volt-Amperes)** or **kVA (Kilo Volt-Amperes)** for apparent power.
Here's a breakdown of the key parameters:
1. **Voltage (V)**: A transformer works to step up or step down voltage levels. The unit of voltage is volts (V).
2. **Current (A)**: The transformer also determines the current depending on the load and the voltage transformation. The unit of current is amperes (A).
3. **Apparent Power (VA or kVA)**: The total power handled by the transformer, which is the product of voltage and current (but not considering power factor). It's usually expressed in **VA (Volt-Amperes)** or **kVA (Kilo Volt-Amperes)**, where 1 kVA = 1000 VA.
In practical terms, when specifying the size or rating of a transformer, we usually talk about its power rating in **kVA (Kilo Volt-Amperes)**. This indicates the transformer’s capacity to carry a certain load without overloading.
Here's a breakdown of the key parameters:
1. **Voltage (V)**: A transformer works to step up or step down voltage levels. The unit of voltage is volts (V).
2. **Current (A)**: The transformer also determines the current depending on the load and the voltage transformation. The unit of current is amperes (A).
3. **Apparent Power (VA or kVA)**: The total power handled by the transformer, which is the product of voltage and current (but not considering power factor). It's usually expressed in **VA (Volt-Amperes)** or **kVA (Kilo Volt-Amperes)**, where 1 kVA = 1000 VA.
In practical terms, when specifying the size or rating of a transformer, we usually talk about its power rating in **kVA (Kilo Volt-Amperes)**. This indicates the transformer’s capacity to carry a certain load without overloading.