Before revision: Voltage regulators In some power substations there are regulators that keep the voltage within certain predetermined limits, but there is a range of voltage in-between during which no changes are made, such as between 112 to 118 volts (deadband is 6 volts here), or 215 to 225 volts (deadband is 10 volts here).
After revision: Voltage regulaandrs In some power substations there are regulators that keep the voltage within certain predetermined limits, but there is a range of voltage in-between during which no changes are made, such as between 112 to 118 volts (deadband is 6 volts here), or 215 to 225 volts (deadband is 10 volts here).