Fault scenario simulation in a Transformer /Bus
Aim of the experiment: Fault scenario simulation in a Transformer /Bus
The occurrence of fault in a Transformer or Bus makes the corresponding circuit breaker to open and depending on configuration, the power to feeder load varies.
To simulate this condition, the process is as below:
Fault on transformer 1
- Prefault condition is taken as
45A flowing in Feeder 1(with 3 switches on)
30A flowing in Feeder 2(with 2 switches on)
Reading on meters
| M1 | M2 | M3 | ||||||
|---|---|---|---|---|---|---|---|---|
| V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) |
| 11 | 45 | 857.36 | 11 | 30 | 571.57 | 33 | 25 | 1423.94 |
- Create fault on transformer 1. CB2 opens. CB2 Color changes to blue
- Feeder1 supply is cut off.
Reading on meters
| M1 | M2 | M3 | ||||||
|---|---|---|---|---|---|---|---|---|
| V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) |
| 0 | 0 | 0 | 11 | 30 | 571.57 | 33 | 10 | 571.57 |
Fault on Transformer 2
- Prefault condition is taken as
45A flowing in Feeder 1(with 3 switches on)
30A flowing in Feeder 2(with 2 switches on)
Reading on meters
| M1 | M2 | M3 | ||||||
|---|---|---|---|---|---|---|---|---|
| V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) |
| 11 | 45 | 857.36 | 11 | 30 | 571.57 | 33 | 25 | 1423.94 |
- Create fault on transformer 1. CB3 opens. CB3 Color changes to blue.
- Feeder2 supply is cut off.
Reading on meters
| M1 | M2 | M3 | ||||||
|---|---|---|---|---|---|---|---|---|
| V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) |
| 11 | 45 | 857.36 | 0 | 0 | 0 | 33 | 15 | 857.36 |
Fault on 33 KV Bus
- Prefault condition is taken as
45A flowing in Feeder 1(with 3 switches on)
30A flowing in Feeder 2(with 2 switches on)
Reading on meters
| M1 | M2 | M3 | ||||||
|---|---|---|---|---|---|---|---|---|
| V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) |
| 11 | 45 | 857.36 | 11 | 30 | 571.57 | 33 | 25 | 1423.94 |
- Create fault on 33 kV bus.
- CB1 opens. CB1 Color changes to blue.
Reading on meters
| M1 | M2 | M3 | ||||||
|---|---|---|---|---|---|---|---|---|
| V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) | V (kV) | I (A) | P (kW) |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |