Question

What is the SI unit of self-inductance?

Answer 1

LV (Low Voltage) refers to the range of electrical voltages that are considered low in various systems. The limits for LV can vary depending on the context, but in general, for most electrical systems, Low Voltage is defined as voltages up to 1,000 V (1 kV) AC (alternating current) or 1,500 V DC (direct current).

Here's a breakdown of the limits for different voltage classifications:

1. Low Voltage (LV):
   

   - Typically up to 1,000 V AC or 1,500 V DC.
   - This range includes common household and industrial voltages, such as 120 V, 230 V, and 400 V systems.
   

1. Medium Voltage (MV):
   

   - Ranges from 1 kV to 36 kV.

1. High Voltage (HV):
   

   - Voltages above 36 kV.

Standards and Examples of Low Voltage Systems:

1. Household electrical systems in many countries use 120 V or 230 V (depending on the region).
   

1. Electrical appliances and devices (like lights, fans, computers, etc.) generally operate on LV power.
   

1. Industrial systems may use 400 V or 480 V systems, which are still considered LV.
   

So, LV voltage limits generally refer to voltages up to 1 kV AC or 1.5 kV DC, and anything above that is classified as medium or high voltage.