Energy Saving Technology - ESTECH Technology Co., Ltd

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ES-LON modifies the frequency of running equipments according to the actual system loading by PID automatic control function and reduce the consumption of energy.

Design Theory



	Frequency(RPM) and flow are in direct ratio.

	Square frequency(RPM) and pressure are in direct
	ratio.

	Cubic frequency(RPM) and power consumption are in
	direct ratio.

Note：N - RPM(frequency), Q - flow, H - pressure(head), P - kilowatt

		flow
		power

As the illustration upon, the cubic speed of motor (flow) and power are in direct ratio.

As the frequency of pump reduces from 60Hz to 30Hz, running in 50% flow, the power wasted will be 12.5% of the original as running in 100%.

The concept of parallel control is that with the same flow while 2 sets of pumps running in 30Hz frequency instead of one pump running in full frequncy. And the power wasted will become 25% of the original.