Sample 1 - Power Flow Configuration

Bleeder Power Distribution Among Multiple Bleeders

When there is more than one bleeder, the user has the option to specify if the total bleeder power is:

  1. Divided equally among all bleeders

Example
If the total required braking power, P_Total = 1000W and there are n = 2 bleeders
Then the continuous power through each bleeder is:
P₁ = P₂ = P_Total / n = 1000 / 2 = 500W

  2. Divided proportionally to each bleeder’s continuous power rating

Example
If the total required braking power, P_Total = 1000W, P_1Rating = 250W and P_2Rating = 1000W
Then the continuous power through each bleeder is:
P₁ = P_Total x P_1Rating / (P_1Rating + P_2Rating) = 1000 x 250 / (250 + 1000) = 200W
P₂ = P_Total x P_2Rating / (P_1Rating + P_2Rating) = 1000 x 1000 / (250 + 1000) = 800W

  3. Divided proportionally to resistor current. Ie. All choppers are synchronized such that they engage and disengage simultaneously.

Example
If the total required braking power, P_Total = 1000W, R₁ = 50 Ohms and R₂ = 10 Ohms
Then the continuous power through each bleeder is:
P₁ = P_Total x 1/R₁ / (1/R₁ + 1/R₂) = 1000 x 1/50 / (1/50 + 1/10) = 167W
P₂ = P_Total x 1/R₂ / (1/R₁ + 1/R₂) = 1000 x 1/10 / (1/50 + 1/10) = 833W