1. What is a Y to Delta Voltage Calculator?

Definition: This calculator converts line voltage between Wye (Y) and Delta (Δ) three-phase system configurations.

Purpose: It helps electrical engineers and technicians determine equivalent voltages when working with different three-phase system connections.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{line\_delta} \) — Line voltage in delta configuration (Volts, V)
• \( V_{line\_wye} \) — Line voltage in wye configuration (Volts, V)
• \( \sqrt{3} \) — Conversion factor (approximately 1.732)

Explanation: The line voltage in a delta connection is √3 times the line voltage in a wye connection for the same phase voltage.

3. Importance of Y-Delta Conversion

Details: Understanding this relationship is crucial for proper equipment selection, transformer connections, and system design in three-phase power systems.

4. Using the Calculator

Tips: Enter the line voltage in wye configuration (Volts). The calculator will compute the equivalent delta line voltage.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a √3 factor in the conversion?
A: The √3 factor comes from the trigonometric relationship between phase and line voltages in three-phase systems.

Q2: Does this apply to both voltage and current?
A: This formula is for voltage conversion. Current relationships are inverse (I_line_wye = I_line_delta × √3).

Q3: When would I need this conversion?
A: When connecting equipment between different system configurations, designing transformer banks, or troubleshooting three-phase systems.

Q4: Is this the same as phase-to-phase voltage?
A: In wye systems, line voltage is phase-to-phase voltage. In delta systems, line voltage equals phase voltage.

Q5: What's the typical application of this calculation?
A: Common in motor starting circuits, transformer connections, and industrial power distribution systems.