EE07: DC MOTOR STARTING CURRENT, BACK EMF, ARMATURE CURRENT AT SPECIFIC SPEED CALCULATOR

SOURCE VOLTAGE:V

ARMATURE RESISTANCE:ohm

MOTOR SPEED CONSTANT:V/rpm     If you don’t know, you can find this. You need to divide voltage generated to speed at that voltage.

MOTOR SPEED: rpm

RESULTS

STARTING CURRENT: A

BACK EMF: V

ARMATURE CURRENT RUNNING AT :A

EE06: BUSBAR CURRENT CARRYING CAPACITY ESTIMATOR

This is an estimator for busbar current carrying capacity. For the exact results please refer to your busbar provider’s data.

Busbar current carrying capacity estimator
BUSBAR WIDTH[mm]:

BUSBAR THICKNESS[mm]:

RESULT
Estimated current carrying capacities:

Copper busbar: A

Aluminium busbar: A

Iron busbar: A

Silver busbar: A

EE06 – MOTOR RATED TORQUE (FULL LOAD TORQUE) + MOTOR STARTING TORQUE

Motor rated torque (Full Load Torque) calculator
POWER:

RPM:

RESULT
Motor rated torque (Full load torque):

Motor starting torque:

EE05 – MOTOR RATED TORQUE FROM HP IN LB-FT (FULL LOAD TORQUE) CALCULATOR

Motor rated torque (Full Load Torque) calculator
HP:
RPM:

RESULT
Motor rated torque (Full load torque): lb-ft

Formula is motorRatedTorque = (hp/rpm)*5252 lb-ft

EE03: 3 PHASE CONTACTOR SIZING

if you enter KW, volt and power factor, the tool will return min contractor size.

Roughly estimates size of the main, star and delta contactors.

Power:kW
cosphi:
Voltage(line to line):V

Results

Full load current of the line:

The rating for main contactor:

The rating for star contactor:

The rating for delta contactor:

MATH01: RANDOM NUMBER GENERATOR

Returns a random integer between 1 and entered value (both included):