| 摘要 |
<p>FIELD: electricity. ^ SUBSTANCE: arc furnace electric mode controller power setter containing a furnace phase current sensor, an arc current setting unit, an arc voltage sensor, an arc voltage setting unit and a comparator unit is additionally equipped with a first, a second and a third multiplier units, an amplifier, a divider unit and a multi-functional transducer. The first output of the multi-functional transducer is connected to the second input of the first multiplier unit whose first input is connected to the comparator unit output via the amplifier. The first multiplier unit output is connected to the first input of the divider unit whose output is the device output. The second input of the divider unit is connected to the second output of the multi-functional transducer whose first input is connected to the output of the furnace transformer voltage level switch with its second input connected to the connected to the output of the phase current setting unit and the second input of the second multiplier unit the first input whereof is connected to the current sensor output; the second multiplier unit output is connected to the first input of the comparator unit the second input whereof is connected to the output of the third multiplier unit the first and the second inputs whereof are connected to the voltage sensor output and the voltage setting unit output accordingly. ^ EFFECT: expansion of functional capabilities of the controller power setter. ^ 4 dwg</p> |
