1. What is Voltage To Ground?

Voltage to ground is the voltage between any given line conductor and ground in a three-phase system. It's a crucial parameter in electrical system design and safety analysis.

2. How Does the Calculator Work?

The calculator uses the voltage to ground formula:

Where:

• \( V_{ground} \) — Voltage to ground (volts)
• \( V_{line} \) — Line voltage (volts)

Explanation: In a balanced three-phase system, the voltage between any line conductor and ground is equal to the line voltage divided by the square root of three.

3. Importance of Voltage To Ground Calculation

Details: Knowing the voltage to ground is essential for insulation coordination, equipment rating, and safety considerations in electrical power systems.

4. Using the Calculator

Tips: Enter the line voltage in volts. The value must be valid (greater than 0).

5. Frequently Asked Questions (FAQ)

Q1: Is this formula valid for all three-phase systems?
A: This formula is valid for balanced three-phase systems. For unbalanced systems, more complex calculations are needed.

Q2: What's the difference between line voltage and phase voltage?
A: Line voltage is between two line conductors, while phase voltage is between a line conductor and neutral.

Q3: Does this apply to both delta and wye connections?
A: The formula directly applies to wye connections. For delta connections, the concept of voltage to ground is different as there's no neutral point.

Q4: Why is the square root of three used in three-phase calculations?
A: The factor of √3 comes from the trigonometric relationship between phase and line quantities in three-phase systems.

Q5: How does this relate to electrical safety?
A: Voltage to ground determines the shock hazard potential and is used to establish safe working distances and insulation requirements.