Main and Aux Transformers

Question 1

What is the input power to transformer 5?

Answer 1

345kv.

Question 2

What is the input power to transformer 9?

Answer 2

345kv.

Question 3

What is the normal and backup power supplies for the main transformer cooling?

Answer 3

Normal TCSN. Back up TCSE.

Question 4

What is the normal and backup power supplies for the Reserve Aux transformers?

Answer 4

Normal is TCSE. Backup is 34.5kv, offsite power.

Question 5

Describe U2 main transformer cooling group operation, both normal and backup.

Answer 5

The cooling group selected will run continuously and the other group will cycle on temperature of 75*.
If the normal power supply is lost it will automatically switch to the backup power supply and all the fans will start after a 20 sec. delay and will not stop.

Question 6

What is the normal and backup power supplies for the Unit Aux transformer cooling?

Answer 6

Normal is TCSN. there is no backup.

Question 7

Describe U1 main transformer cooling group operation, both normal and backup.

Answer 7

The cooling group selected will run continuously and the other group will cycle on temperature of 70.
If the normal power supply is lost it will automatically switch to the backup power supply and all the fans will start at 75
If selected to manual both groups will run continuously.

Question 8

What temperature does the cooling fans com on at for the Unit Aux transformers?

Answer 8

Leading group 70*

Secondary group 75*

Question 9

What do the different lights on the severon monitor mean?

Answer 9

Red = is an alarm it means that one of the gas  concentrations is at the alarm level.
Blue = service light needs maintenance.
Green = power light.