dear all,
I am reading BP sphoto voltaic specification BP380 and found at note 1 about STC (standard Tes condition). it is said that STC is conducted in 1000 W/m2 and cell temp 25 dec C to get warranty output 75 W. Efficiency is 0.12.
If in area, the insolation is 4.5 kW/m2/day and daylight...
I am sorry for too long response your valuable help.
itsmoke,
"thermal engine generator is liquified Natural Gas drive an engine generator. I use plant maintenance people jargon.
jraef,
Thank you for your explanation. We agree to use variable Time base zero cross control(VTB zero cross ctrl)...
all,
I am in the middle of a project which involving fuel gas heater selection. The specification said that it should be controlled by thyristor either zero crossover or phase vector control in all range. Anyone can help me detail explanation (advantage or disadvantage)?
I also understand that...
The scottyUK's question at 27 Jan is also question. I've tried install 1 phase ELCB (2 pole, Line-neutral), but since there is no neutral, both poles are life wire. I test the installation using 2 methods:
(1) Using trip button built in the ELCB
(2) Using ELCB tester, by connecting life wire to...
all,
I am working on safety audit on our shiping contractor. I didn't find any ELCB/RCD to protect their seaman. They use 3 phase generator with 3 cables only to the main busbar.Is it possible to install ELCB/RCD for 1 phase outlet/receptacle (hand tools purposed)on this installation? All ELCB...
I appreciate for your help for the following:
We are planning to modification of 11 kV distribution network. This network has 2 branches, to production area (2.5 MVA) and non-produstion area (1.8MVA). We have two option
opt 1. Insert LBS(Load breaker switch) to non-production branch, the...
Thanks all for the comment and sorry for being late respond your help. I have a visitation to company which have used oil as "fuel". Actually they use furnace as "incenerator" for the used oil. They limit 5% of total energy into furnace. The permissive to spray the atomization of used oil is...
dear all,
This month, we have expanded our power system with additional 5 x 1.2 MW Genset at MINING area. The first power plant is at PORT area, 15 km far from the location with 19 MW installed capacity. We use 11/70 kV transformer for tranmission line. Before gensets are installed the flow of...
Metengr,
The boiler type is wall fired burners. I think it should have atomization device for better combution and you are right it must be difficult to find the proper location for it. I can't describe what cyclone boiler is, I don't know whether it work fine as in cyclone boiler just like Doug...
dear all,
Our power station want to decrease the cost of oil waste handling. They are intender to change the waste lubricating oil as boiler fuel. Is it possible? The boiler is designed as fired coal.
I am electrical engineer, and I am not familiar with fuel-mechanincal-environmetn issue. I...
all,
I am looking for information related using CT 1000V rating in 3300V rating. I plan to use RING type of CT to cable with heatshrink insulation. This CT will be input for transformer protection unit and display unit. This choices should be taken since the electric panel doesn't have space...
Bung,Aakhrinaam,Rraghunath
I thank for your information. I've contacted local rep of Areve and they have very quick respond. They also sent me the old manual of MCHN02. And you are right that it was obsolete and replaced by P220.
Related with our plan to change the DOL starting with VSD, which...
all,
We have a conveyor which need to be changed its drive. From DOL starting 3.3 kV motor into VSD. This modification require additonal transformer 3.3/0.6 kV. The old motor is protected with MCHN02 motor relay protection. I want to ask for your help:
1. Anyone know where I can find the manual...
Thanks all for your advice and ideas. I'll consider VSD 3.3 kV and lower voltage VSD (i.e add transformer). Thank you for enlighten me in motor induction class.
-pamungkas-
Thank you for your sugestion. I will get to try it.
For the item no 2. The sea water is in outside tubes. It was Pieter Brotherhood manufactured. 14 years old.
Thanks again.
Pamungkas
pet100pierre,
I am not quite good in either salt filter or greasing, since I am only electrical. I never know salt filter, If you find, it could be very expensive, since the salt particle is micron.
If your application's operation is limiting by the temperature, you should consider the...
The book that I read is based on NEMA. But at our plan, the motor drive is SIEMENS manufactured. At the name plate The motor type is xxx-xxx-Z, means non-NEMA standards. It seems them motor is using DIN standards (IMB3 types of construction).
This motor is operated in fixed speed (50 Hz) and...
