Dear All,
We have burried pipelines for diesel from our tank farm to different daytanks (boiler, gen sets et. Our EMS auditor want us to conduct leak testing of these pipelines in pre-determined frequency.
What is the best way to leak test diesel pipes? Does nitrogen have negative effect on...
Dear all,
We have a leaking transformer and we are planning to repair it but since we need to fill more silicon oil can we just add any transformer silicon oil to existing?
Thank you.
Bogart
Can some one help me to compute heat load difference between blast freezing in a corrugated board and in open crates? initial temp of product is 4 c and final temp would be -12 c. Carton size is .3 x .2 x.15 mtrs. At present we can reach the -12 temp of product using carton in 24 hours. Our...
Hi everybody,
I am an electrical engineer tasked by our company to head our "ENERCON" team (energy conservation) We are implementing measures to save power and 60% of our energy consumption goes to refrigeration. How can I quantify costs or savings of say closing and opening of doors (between...
Hello guys...
In our meat processing company we operate ammonia refrigeration system. We have surge drums for 0°C, -5°, -15°, -27° system and -40°C system (used for blast freezing)...
We experienced (hearing) a very loud sound (like bang) on the surge drum. we're suspecting it as hammering...
Need some advice...
We have 4160V MCC serving 1-650kW, 2-310kW and 5-460kW motors driving screw compressors for refrigeration system. All motors are dol
1. There are some suggestions to install softstarters for these though we did operate for almost 2 years now w/o problem.
2. The overall...
we have 2-MVA power transformer 4160/480V. 7-325mm2 cables per phase were connected on its secondary bushings. The cables' connections applies some pressures on the bushings causing transformer oil to leak. I am planning to intall braided copper conductor on its secondary bushings to relieved...
Our plant uses a lot of metal halide lightings. 400 watts cooper. The lightings are installed inside the production area which temperatures varies from 4°C to 10°C with some on -18°C area. We are conducting a weekly shut off of the lightings as long as we can (other areas are not possible).
I...
WE have a 3 phase heater used for heating oil for 650kWatts compressor (for ammonia in refrigeration). The heater is 3 phase but the compressor installer wired the heater using single phase splitting one wire to wire all of the 3 phases. and instead of 440V they used 240V...
What will be the...
Hi Everybody,
We have an existing power distribution from 115kV S/S, 20MVA xformer (115kV/4.16kV), a switchgear with 7SJ602 relays, 4160V feeders, 2MVA 4160V/480V xformers, and LV switchgears with micrologic 6A main CBs.
Based on the existing available fault at 115kV which is 2933 MVA We have...
We're operating a meat processing plant with Freezers operating between -18°C to -27°C. The two huge freeers is separated by a an insulated wall with a roll-up door. Problem now...There's A crack along the opening of this door 2 to 4 inches wide and around 2 meters in lenght. How we are going to...
