Three causes o transient voltages

1. Lightning strikes: Lightning is a common cause of transient voltages. When lightning strikes a power line or utility pole, it can create a sudden surge of electricity that can damage sensitive electronic equipment.

2. Switching of electrical devices: The sudden switching on or off of electrical devices can also produce transient voltages. This can happen when large appliances like air conditioners, refrigerators, or power tools are turned on or off, causing a momentary surge of electricity in the circuit.

3. Faulty wiring or power surges: Faulty wiring or power surges in the electrical system can also lead to transient voltages. These issues can occur due to faulty installation, old or worn-out wiring, or problems with the utility’s power distribution system. Power surges can be caused by events like grid switching, lightning strikes, or equipment malfunction.