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Product Details

Product Description

An increasing number of loads are non-linear, introducing harmonics into the power grid and thus significantly impairing the power quality. SFR-APF is an active harmonic filter that effectively reduces the unwanted harmonics.

Linear loads have become a rarity in industrial plants, office buildings, data centers or even private households. Non-linear loads, by contrast, have become increasingly common: frequency converters in drive systems, the large numbers of switch-mode power supplies used in IT and communications equipment, and also more and more in household electronics. Even lighting technology employs mainly non-linear power supplies.

Technical parameters

Elecnova active power filter is mainly composed of incoming line contactor, filter, IGBT inverter, and control and protection. The control system of the active power filter detects the current on the load side and the system voltage at the connection point in real time, calculates the current required for harmonic compensation, and controls the three-phase IGBT inverters to give current tracking and compensation orders to suppress harmonics on the load side. Besides, the filter is also capable of protection against AC overvoltage/under voltage, output overcurrent, DC overvoltage/under voltage, short circuit of inverter, and overheating of inverter.

Function	Specification
Measurement accuracy	Current	≤1.0%(5%~120%In)
		Voltage	≤0.5%(80%~120%Un)
		Power	≤2%
		Power factor	≤0.01
Switching mode	Zero cross switching
Compensation operation	Working voltage	AC380V±20%, distortion rate ≤5%
		Comsumption	≤5VA
		Max working current	1.35 X In
		Switching inrush current	≤3 X In
Host protection	Over voltage	430V(can be set)
		Under voltage	300V(can be set)
		Harmonic exceeding	0%~100%
Local protection	Over current	0A~100A
		Over temperature	55 ℃
		Unbalance	50%
Control setting	Control parameter	Target power factor, switching threshold, delay time etc.
Control setting		Peripheral unit parameters	Current transformer ratio
Network interface	Pluggable data line, internal network protocol
Mechanical installation	Outline dimension	W-71.5mm L-370mm, height is a according to different capacity
		Installation dimension	Distance of installation fixing holes:W-85mm*L-315MM
		Weight	≤6.5kg
Environment temperature	Working temperature	-15℃~45℃
Environment temperature		Storage temperature	-25℃~55℃
Altitude	≤2000m
Standard	GB/T15575-2008

Working Principle

Model Selection

Transformer Capacity(kVA)	Capacity and Quantity of Active Power Filter(Three-phase Four-wire)	Capacity and Quantity of Active Power Filter(Three-phase Three-wire)
200	SFR-APF4-50/0.4	SFR-APF3-50/0.4
250/315	SFR-APF4-50/0.4	SFR-APF3-75/0.4
400	SFR-APF4-75/0.4	SFR-APF3-75/0.4
500/630	SFR-APF4-75/0.4	SFR-APF3-100/0.4
800	SFR-APF4-100/0.4	SFR-APF3-150/0.4
1000	SFR-APF4-100/0.4	SFR-APF3-200/0.4
1250	SFR-APF4-150/0.4	SFR-APF3-250/0.4
1600	SFR-APF4-200/0.4	SFR-APF3-300/0.4
2000	SFR-APF4-200/0.4	SFR-APF3-400/0.4
2500	SFR-APF4-300/0.4	SFR-APF3-250/0.4 x 2

Packing & Delivery

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory located in Jiangyin Jiangsu Province.

Q: Does your company provide customized manufacturing?

A: We provide OEM/ODM service to our customers. Our experienced R&D team will give our customer solution in a high efficiency way.

Q: How long is your delivery time?
A: 3-5 working days for the items were in stock, 15-21days for the items out of stock.

Q: Do you provide samples ? Is it free or extra ?
A: You need to pay for the sample and cover the freight as well.

Q: What is your terms of payment ?
A: Order amount less than $3000, 100% paid before shipment, order amount more than $3000,30% as deposit, 70% before shipment, or by negotiated for the both parties.