1 Answer
A **1 kVA transformer** is a transformer that has a **rated power capacity of 1 kilovolt-ampere (kVA)**. Here's what that means:
- **kVA (kilovolt-ampere)** is a unit of apparent power, which is a combination of both **real power** (measured in watts, W) and **reactive power**. The "1 kVA" rating means the transformer can handle **1,000 volt-amperes** of total power.
In simple terms, a **1 kVA transformer** is designed to safely step up or step down electrical voltage while carrying up to 1,000 volt-amperes of load without overheating or getting damaged.
### Example:
- If you're using a **1 kVA transformer** to step down 220 V AC from the grid to a lower voltage, the maximum current the transformer can handle on the secondary side is calculated using the formula:
\[
I = \frac{Power}{Voltage}
\]
So for a 1 kVA transformer at 220 V:
\[
I = \frac{1000}{220} \approx 4.54 \, \text{A}
\]
This means the transformer can safely supply up to around **4.54 amps** at 220 V.
### Key points:
- **1 kVA** = 1,000 volt-amperes.
- It's a measure of the transformer's maximum power handling capability.
- It doesn't specify whether the transformer is handling just real or just reactive power — it represents the total power (apparent power).
Would you like more details on how a transformer works, or how to use this rating in practical scenarios?
- **kVA (kilovolt-ampere)** is a unit of apparent power, which is a combination of both **real power** (measured in watts, W) and **reactive power**. The "1 kVA" rating means the transformer can handle **1,000 volt-amperes** of total power.
In simple terms, a **1 kVA transformer** is designed to safely step up or step down electrical voltage while carrying up to 1,000 volt-amperes of load without overheating or getting damaged.
### Example:
- If you're using a **1 kVA transformer** to step down 220 V AC from the grid to a lower voltage, the maximum current the transformer can handle on the secondary side is calculated using the formula:
\[
I = \frac{Power}{Voltage}
\]
So for a 1 kVA transformer at 220 V:
\[
I = \frac{1000}{220} \approx 4.54 \, \text{A}
\]
This means the transformer can safely supply up to around **4.54 amps** at 220 V.
### Key points:
- **1 kVA** = 1,000 volt-amperes.
- It's a measure of the transformer's maximum power handling capability.
- It doesn't specify whether the transformer is handling just real or just reactive power — it represents the total power (apparent power).
Would you like more details on how a transformer works, or how to use this rating in practical scenarios?