DFC-T series General Use Power Filter

Overview

DFC-T series General Use Power Filter is parallel L-C (reactance and capacitor) type applying the series resonance theory. When resonance occurs, the system takes on low impedance to harmonic of certain order, making the harmonic current flow into the harmonic filtering system. Typical harmonic orders are 5th, 7th, 11th, at the same time, the capacitors can compensate reactive power. All these combined to make power factor, harmonic current and harmonic voltage comply with public power grid standard. This kind of filter is widely used in metallurgical industry, mine, construction, chemical industry, auto industry, electrochemical medical industries etc.

Features

* Intelligent control with quick response time, and automatic switch on/off with high precision.
* Special harmonic filter unit designed in circuit ensure the lasting reliability and stability of power for control system
* Apply with dry type self-healing & harmonics filtering special purpose capacitor and dry type core harmonics filtering special purpose reactor.
* Compact inside structure and fitting position
* Harmonic reduction: 60～90 %
* THDV on bus line: < 5 % ，comply with state standard
* Power factor after compensation: cosφ≥0.91～0.95
* Energy-saving up to 7%-8% due to the reduction of harmonic current and the improvement of power factor

Technical Parameters

* Rated voltage：0.4KV～1.5KV
* Rated Frequency：50Hz /60 Hz
* Harmonics order：3rd, 5th, 7th, 11th, 13th
* Efficiency：generally＞70 % ，THDV＜5 %
* PF improved：≥0.95
* Physical factor：Reactive power, cosφ
* Capacity per unit:60KVar～800KVar, it can work in parallel
* Working type：Continuous
* Configuration：Cabinet type
* Ambient temperature：Indoor -5℃ ～+ 40 ℃
* Humidity：Daily average <90 %
* Switch-on type: Three phase vacuum switch automatic control