Green Energy
- The Free-est Economy In The Americas
OOPS! The Heritage Society is very upset, but I have news for them. NO ONE NOTICED OR CARES 2012 Index of Economic FreedomTop 10 Countries1 Hong Kong 89.9 2 Singapore ...
- Understanding Module De-rating: Concerns And Issues
Module De-rating accounts for consistency and accuracy of the rating given by manufacturer. Since not all modules in a system will have the same specification (manufacturing defect) and there would be degradation over the years in panel, so to have...
- Load Swing Test
YESTERDAY , We made a test at our power station ( 2*350 MW - Gas/Oil Fired ) , this test is LOAD SWING TEST. This test is implies the load of the unit at 350MW , for a while . and collect our data from the unit especially the boiler and Turbine...
- Generator Stator Earth Fault Relay (64g) - 27tn.
Generator Stator Earth Fault Relay (64G) - 27TN. -For high impedance grounded generators, a voltage relay across the secondary winding of the generator neutral grounding transformer is used to detect the ground fault on the generator...
- Reverse Power Protection., Theory & Setting .
Reverse Power Protection. 1- Protection against overspend 32G (# 1). In case of Turbine Failure, the Turbine is tripped and then the Generator is tripped by operation of reverse power relay to prevent overspending...
Green Energy
Generator Temperature Rise Test
Generator Temperature Rise Test
From a few days, we have made a test on the Generator’s windings (Stator and Rotor), this test accomplish the temperature rise of the windings at full load is within the Normal range.
First, we increased the load to full load (350 MW), then increased the reactive power and the terminal voltage at about (19.7 KV).
1) Procedure for stator winding.
-Apply the following formulae, after you collect the data every 30 minutes.
Ts = ( Tst – Ts1 ) * ( In / Ib )2 + Ts1
Tst = Actual stator winding temp. – Avg. cold gas temp
Ts1= Factory test value = 4.4
In = Factory test value = 13.37
Ib = Max. Current value
2) Procedure for rotor winding.
-Apply the following formulae, after you collect the data every 30 minutes.
Tf = Tft * ( Ifn / Ift )2
Tft = Actual rotor winding temp. – Avg. cold gas temp
Ifn = Factory test value = 2945
Ift = Actual Current value
Ts and Tf , should be at the normal levels , at full load
- The Free-est Economy In The Americas
OOPS! The Heritage Society is very upset, but I have news for them. NO ONE NOTICED OR CARES 2012 Index of Economic FreedomTop 10 Countries1 Hong Kong 89.9 2 Singapore ...
- Understanding Module De-rating: Concerns And Issues
Module De-rating accounts for consistency and accuracy of the rating given by manufacturer. Since not all modules in a system will have the same specification (manufacturing defect) and there would be degradation over the years in panel, so to have...
- Load Swing Test
YESTERDAY , We made a test at our power station ( 2*350 MW - Gas/Oil Fired ) , this test is LOAD SWING TEST. This test is implies the load of the unit at 350MW , for a while . and collect our data from the unit especially the boiler and Turbine...
- Generator Stator Earth Fault Relay (64g) - 27tn.
Generator Stator Earth Fault Relay (64G) - 27TN. -For high impedance grounded generators, a voltage relay across the secondary winding of the generator neutral grounding transformer is used to detect the ground fault on the generator...
- Reverse Power Protection., Theory & Setting .
Reverse Power Protection. 1- Protection against overspend 32G (# 1). In case of Turbine Failure, the Turbine is tripped and then the Generator is tripped by operation of reverse power relay to prevent overspending...