Machine Parts

                                                 Boiler Schedule Maintenance Daily Boiler Schedule Maintenance:  1.      Power supply check 2.      Steam pressure check 3.      Water level check 4.      Moving valve check 5.      Feed pump check   6.      Chemical check 7.      Gas valve check 8.      Gas pressure check 9.      Steam (Trap) check Monthly  Boiler Schedule Maintenance :  1.      Check Boiler for visual damage 2.      Check for flue spillage where appropriate 3.      Safety valve check 4.      Check main control panel and clean as necessary 5.      Check gas regulator  Yearly Boiler Schedule Maintenance : 1.      Check main burner clean as necessary 2.      Check heat exchanger clean as necessary 3.      Cable   insulation test 4.      Earth resistance test 5.      Chemical servicing test

Transformer Schedule Maintenance Daily Maintenance:  1.      Cleanliness 2.      Oil Leakage 3.      Typical Checking Monthly Maintenance:  1.      Silica Gel Checking (Color) 2.      Transformer Breather Cap Oil Check 3.      Oil Level Checking (Conservator) 4.        Cable Termination Check Yearly Maintenance: 1.      Transformer Oil Test 2.      Transformer Body Earth Resistivity Test 3.      Transformer Neutral Earth Resistivity Test 4.      Cable Insulation Resistance Test

Voltage restrained Over Current Protection : Normal IDMT Over current is not work – when a over current fault occurs, due to higher current levels, there would be a drop in terminal voltage. For the same fault impedance, the fault current will reduce (with respect to terminal voltage) to a level below the pickup setting. Consequently normal IDMT may not pick up. It is necessary to have a relay shoes pick up setting will automatically reduce in proportion to terminal voltage. Hence the over current protection must be voltage restrained. Two levels of Over current protection is required-low set and high set (for short circuit protection). Thermal Overload: This protection is a must – it monitors the thermal status of machine for currents between 105% to the low set 0/C level (normally 150%). Current Unbalance : Generators are expected to feed unbalanced loads – whose level has to be monitored. If the unbalance load exceeds 20%, it may cause over heating of t