Protection Engineering Basics and Schemes Protection Engineering | Page 84

in socket circuit we provide 1 fluorescent light with
sockets. across contact 1,2 and 3,4 and 13,14 selector
switch is given , when selector switch is at 1,2 your
heater is at auto position humidistat(HMT) will sense
heat insight cubicle and will auto off heater when set
limit cross. at 3,4 heater can be manually off and on , at
13,14 you can test healthiness of your heater circuit.
in next page we are observing the DC supply Distribution
circuit ,
pg. 84