In secondary hypogonadism, testosterone levels are low and levels of FSH and LH are low or inappropriately normal. Any acute systemic illness can cause temporary secondary hypogonadism. Some syndromes of hypogonadism have both primary and secondary causes (mixed hypogonadism).
Function of damper winding in synchronous machine: 1.Self starting of synchronous machine: The core concept is that damper winding being short circuited carry high current, creates magnetic flux like as induction machine.Thus there is pulling in or better torque in starting.he rotor of induction machine is mostly of squirrel cage type which is short circuited thus provides high current in start up. Damper winding in synchronous machine is placed in the coil slots and short circuited.
I have labeled most of the important parts of the machine on the image above. Below you will find a brief description of the parts function. 1. Bobbin winder tension disc: Applies tension to the thread for the bobbin winding. 2. Pressure regulator: Regulates the pressure applied by the presser foot. This is not something you normally have to adjust in your everyday sewing.