2. Thermal imaging is used by what type of overcurrent protective device (OCPD)?
2. Thermal imaging is used by what type of overcurrent protective device (OCPD)?
Thermal imaging is used by what type of overcurrent protective device (OCPD)?
a. Thermal-Magnetic
b. Oil dashpot
c. Digital/microprocessor
d. Air Dashpot
Answer: C. Digital/microprocessor
Digital and microprocessor-controlled OCPD employ thermal imaging to mimic thermal memory that is characteristic of thermal bi-metal breakers.
Source: Winter 2013 NETAWORLD Quiz
The function thermal imaging is not the same as say using a camera with thermal imaging. A couple of SqD functions utilizing Thermal Imaging to determine the cooling effect of the conductors:
https://product-help.schneider-elect...unctions-6.htm
https://product-help.schneider-elect...unctions-5.htm
The control unit uses the calculation of a thermal image to evaluate the conductor heat rise and precisely monitor the thermal state of the conductors.