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.
Product Paramenters
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.
Product Specification | Rack Type Module | Wall-mounting type | Full cabinet type | ||
Power grid voltage | 400/690V（-40%~+20%） | ||||
Power gird frequency | 50/60±hz | ||||
Wiring pattern | Three-phase three-wire，Three-phase four-wire | ||||
Capacity | 25A 50A 75A 100A 50A 75A 100A 25~400A | ||||
Harmonic order | 2-50 times of harmonic compensation ,eliminating all harmonic waves or harmonic waves of selected number of times | ||||
Setting of harmonic degree | It is allowed to set independently to each time of harmonic wave | ||||
Haimonic compensation efficiency | ≥97% | ||||
Full response time | ≤5ms | ||||
Compensation mode | Harmonic compensation ,reactive compensation and three-phase unbalance compensation | ||||
Parallel running capability | Supporting parallel connection of at most 10 modules | ||||
Active power loss | ＜3% rated output capacity of equipment | ||||
Display function (user interface) | 3in LCD,display real-time data of module,waveform curve ,parameter setting ,record inquiry and manufacturing information | Inquiry system of 7in LCD touch screen (optional),real-time data of parallel connection module ,waveform curve ,parameter setting,record inquiry and manufacturing information | |||
Protection mode | automatic current limit protection for power grid over-voltage and under-voltage ,power grid over-frequency and under-ferquency,inverted sequence of input voltage ,over-current ,over-heating and over-load ,and busbar short-circuit | ||||
Cooling mode | Forced air cooling | ||||
Noise | ≤65dB | ||||
Protection grade | IP20 (higher protection garde can be customized) | ||||
Communication | Remote RS485/RS232/Etherent communication function (optional) | ||||
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: 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.
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.