TRANSFORMER CONTROL ROOM

Interactive thermal simulation of a 630 kVA oil-immersed distribution transformer
1
A virtual transformer is generating heat. The PID controller automatically adjusts cooling fan speed to keep oil temperature at the setpoint (72C). Watch it fight to stabilize.
2
Try the scenarios on the left: Overload ramps to 130%, Runaway pushes 120%+ sustained, Coolant Fail kills the fans. Can the PID keep up?
3
Switch to MANUAL mode and control the fans yourself. Try to beat the PID controller. (You probably can't.)
4
Drag the Kp, Ki, Kd sliders to see how PID tuning affects response. Crank Kp to 15 and watch it oscillate. Set Ki to 0 and see the steady-state offset.
Built by Abdurakhmon Kuchkorov | Physics based on real 630 kVA transformer parameters
Source: github.com/justkuchkorov/transformer_digital_twin

TRANSFORMER CONTROL ROOM

630 kVA Oil-Immersed Distribution Transformer T+0s | 10x speed
Operator Controls
Load Demand 60%
Mode
AUTO (PID)
MANUAL
Fan 1 Speed 0%
Fan 2 OFF
PID Tuning
Kp 4.00
Ki 0.15
Kd 1.00
Setpoint 72.0 C
Scenarios
Simulation Speed
Time Multiplier 10x
25.0
C
Oil Temperature
25.0
C
Winding Hot-Spot
60
%
Load
0
kW
Total Cooling
ONAN: 0 | F1: 0 | F2: 0
0%
FAN 1 (PID)
OFF
FAN 2 (click)
Score
1000
Operator Rating
Alarms
TEMPERATURE NORMAL
RATE-OF-RISE NORMAL
WATCHDOG OK
PID Internals
Error (SP-PV)0.00
P term0.00
I term0.00
D term0.00
Output0.00%
Integral Accum0.00
Anti-windup-
Event Log