undervoltage protection

undervoltage protection

[¦ən·dər‚vōl·tij prə′tek·shən]
(electricity)
An undervoltage relay which removes a motor from service when a low-voltage condition develops, so that the motor will not draw excessive current, or which prevents a large induction or synchronous motor from starting under low-voltage conditions.
References in periodicals archive ?
Key features include wide input voltage design with overvoltage, undervoltage protection and overcurrent protection, temperature-controlled cooling fan, and thermal protection.
The NCR18650B datasheet recommends that the end of discharge voltage is 2.5 V, but to extend battery life, the undervoltage protection is set to 2.7 V.
2) System status: SMC can take appropriate actions in different operating conditions, such as blocking converters, blocking SM for undervoltage protection.
The threshold values for the overvoltage protection [V.sub.OV] and the undervoltage protection [V.sub.UV] have to be designed as the following equations: