How often should transformer oil be changed?
Dissolve Gas Analysis of transformer oil should be done annually for 132kv transformer, once in 2 years for the transformer below 132kv transformer, and once in 2 years for the transformer above 132kv transformer.
What is WTI trip?
The WTI means winding temperature Indicator and OTI means Oil Temperature Indicator which indicates the winding temperature & oil temperature of the transformer and operates the alarm, trip, and cooler control contacts. This instrument operates on the principle of thermal imaging and it is not an actual measurement.
Who are the triple changers in transformers?
The Triple Changers are:
- Astrotrain.
- Blitzwing.
- Octane.
- Broadside.
- Sandstorm.
- Springer.
What happens when transformer overheats?
When a transformer overheats through overcurrent, the copper windings heat first. Eventually, the wire will reach a temperature at which the insulation begins to degrade, to lose mechanical strength, to smoke and char, to catch fire, to melt (not necessarily in that order).
Is it normal for a transformer to get hot?
Transformers should normally run between warm to very warm temperatures. Hot is a bad sign — especially in the case of output transformers (OTs). Make sure that other components are not the cause of excessive transformer heat.
How does a transformer burn out?
VOLTAGE DEMAND : If the input voltage to the transformer is lower or around the critical voltage, but the output voltage is more. In peak hours the load to transformer increases, the winding temperature of it increases heavily and burns out the transformer.
Why is Oltc used?
A transformer consists of two types of windings primary windings and secondary windings. Whereas on-load tap changer transformer there will be continuous power supply even when tap positions change. The main advantage of OLTC is that is can operate without disconnecting. They are mainly used in power transformer.
What is meant by Oltc transformer?
On-load tap changer (OLTC), also known as On-circuit tap changer (OCTC), is a tap changer in applications where a supply interruption during a tap change is unacceptable, the transformer is often fitted with a more expensive and complex on load tap changing mechanism.
Who was the first Triple Changer?
Springer
The first successful Triple Changer was Springer, followed by Blitzwing. Later, they were joined by Astrotrain, Broadside, Sandstorm and Octane. Triple Changers can change between their multiple alternate modes twice as fast as most Transformers.
Who is the director of the Transformers movie?
Transformers is a 2007 American science fiction action film based on the Transformers toy line. The film, which combines computer animation with live-action filming, was directed by Michael Bay, with Steven Spielberg serving as executive producer.
Is there a one tank trip in Tampa?
Tampa’s new Urban Air Trampoline and Adventure Park has something for the whole family to enjoy. From kids to adults, everyone is invited to join in the fun. Far from the hustle and bustle of our busy streets, there’s an oasis of sorts — just a ‘one tank trip’ away.
How often should I replace my transformer tank?
Every 3 to 5 years, when doing other maintenance or testing, examine the top of the transformer tank around the pressure relief device. If the transformer has a conservator and oil is visible, the device is leaking, either around the tank gasket or relief diaphragm. The gasket and/or device must be replaced.
How did frenzy get the All Spark in Transformers?
Frenzy, disguised as a cellphone, secretly accompanies the group to Hoover Dam and releases Megatron from his frozen state. Locating the All Spark, Frenzy sends an alert to the other Decepticons. Sam convinces the Sector 7 agents to release Bumblebee so that he can get the All Spark to Optimus Prime.