Hitachi History
He is the one who won the battle of AC over DC
Who is Nikola Tesla?
(With the help of George Westinghouse)
This is the largest bushing factory in the world
Alamo factory
This is a phrase to remember Ohm Law
What is "there is a Vault on an Indian Resturant"?
This is the heart of the transformer
What is the core?
These are the most concerning combustible gases
What are Methane, Ethane, Acetylene and Ethylene?
Namihei Odaira
Who founded Hitachi in 1910?
Back in November, this factory passed the milestone of 3 Million units shipped
What is Jefferson city factory?
What are overheat, moisture and contamination?
This are the leads from the coils to the outside of a transformer
What are bushings?
These are the three main purposes of oil in a transformer
Cooling, isolating and gas generation
This is what TRES Stands for
Transformers Remanufacturing and Engineering Solutions
This is the newest factory in NAM that will be open very soon
What is Reynosa factory in Mexico?
Moving a cable in presence of a magnetic field induces an electrical current in a wire.
This is the principle of electrical transformers
What is Faradays law?
These devices will alarm and trip the transformer if it gets overheated.
What are oil and winding temperature gauges?
This is what ONAN, ONAF and OFAF stand for
What is Oil Natura, air Natural (radiators)
What is Oil Natural, air forced (Radiators and fans)
What is Oil Forced, air forced (radiators, fans and oil pumps)
A very important WoldWide known company that bought Westinghouse and then was acquired by Hitachi?
What is ABB?
These two factories in USA can build medium power transformers
What are Crystal Springs and South Boston factories
He invented the first DC generation plant, which had a weight of 27 Tons and could only generate 100 W a square mile around.
Who is Thomas Alva Edison?
This is a mandatory protection device on all transformers designed with a conservator tank
It monitors gas, oil level and overflow
What is a buchholz relay?
This is what makes the oil circulate naturally
What is liquid convection?
Who is Carlos Dominguez
These are the 5 TRES USA locations
What is Earth City, Nashville, South Boston, Crystal Springs and Santa Fe Springs?
This is the ratio formula for increasing or decreasing voltage (step up or step down)
What is V1/N1 = V2/N2?
When a transformer has a conservator tank, this is used to avoid the contact of the ambient moisture to the oil inside a transformer
What is Conservator tank bladder?
(helped by a Dessicant breather)
This is what DGA stands for
What is Dissolved Gas Analysis (also known as oil chromatography)