Elecnova Power Quality Mitigation Solutions Applies In Water Treatment Factory 2024 May.11

A water treatment factory in Jiangsu China is mainly responsible for the supply, treatment and management of water in the local area. The water treatment company has many automated facilities and equipment, including a large number of VFD and other non-linear electrical load equipment. This type of setup produces large harmonics. waves, affecting power quality. By using harmonic filter , SVG (Static Var Generator) and reactive power compensation solution, users can effectively solve harmonic problems, improve power quality, and ensure the safe operation of facilities and equipment.

Active Harmonic Filter

In this case, the SFR-APF active harmonic filter is connected in parallel in the power grid, detects harmonics in the power grid in real time, generates reverse-phase compensation current through the converter, and dynamically filters out harmonics in the power grid. Its operation is not affected by the grid structure and load type, does not resonate with the system, and achieves harmonic control of various loads.

Features

1) Harmonic filtering, reactive power compensation, harmonic reactive power compensation, one machine with multiple functions;

2) It has harmonic fractional compensation function and can set the reactive power compensation ratio;

3) High-definition 7(10)-inch Chinese color touch screen, the screen displays system and device operating parameters in real time;

4) Comprehensive protection functions to improve user application stability;

5) Advanced control strategy and topology design.

Technical Parameters

Electrical properties
Rated voltage	AC400V±15%	Circuit topology	Three levels
Working frequency	50Hz士2.5Hz	Electrical wiring	Three-phase three-wire or three-phase four-wire
Filter range		System active power loss	<5%
Number of units connected in parallel	≤8	MTBF	>100,000 hours
Response time	≤5ms	Instantaneous response time	<200us
Filtering treatment effect: Single treatment rate≥97.5%
Operating mode	Harmonic compensation, reactive power compensation and three-phase load unbalance compensation functions,
	One or more compensation methods can be set
Output protection	The output current limit is automatically limited to 100% output of rated capacity.
Installation Environment	Environmental temperature -25°C~+55°C
	Relative humidity maximum 95%, no condensation
	Installation altitude ≤2000m, >2000m adopt derating design

Static var generator

The SFR-SVG static reactive power generation module is a new generation of static reactive power compensator. It is connected in parallel to the power grid and is equivalent to a variable reactive current source. Its reactive current can be flexibly controlled and automatically compensates for the reactive power required by the system. . On the one hand, it effectively solves the problem of harmonic reactive power interfering with the switching compensation of parallel capacitors. On the other hand, it can suppress or manage harmonics to clean the power grid environment according to the actual requirements of users.

Features

1) It has anti-harmonic function to ensure system safety.

The SFR-SVG series static var generator is a controllable current source that only compensates the fundamental reactive current. The system harmonic current will not cause damage to the compensation equipment, extending its life and reducing maintenance workload. At the same time, avoid harmonic amplification that may be caused by the capacitor bank of the series reactor, and prevent other equipment and compensation equipment in the system from being damaged due to harmonic overvoltage.

2) Dynamic continuous smooth compensation, high-speed response speed has better compensation effect on voltage flicker.

The SFR-SVG series static var generator can follow load changes, dynamically and continuously compensate for power factor, and can output reactive power or absorb reactive power, completely eliminating reactive power backflow.

3) Solve the problem of load imbalance simultaneously.

4) Compensate reactive power while dynamically compensating harmonics, which can effectively control the 3rd, 5th, 7th, 9th, 11th and 13th harmonics.

5) Due to current source characteristics, the output reactive current is not affected by the bus voltage. Traditional SVC has impedance characteristics, and the output current decreases linearly with the bus voltage.

Elecnova SVG module has great advantages when used for voltage control. The lower the system voltage, the more dynamic reactive power support voltage is needed. The output reactive current of SVG module has nothing to do with the system voltage. The lower the system voltage, the lower the SVC output voltage. The reactive current capacity decreases the more.

6) Dynamic compensation times are faster.

SVG module response time is less than or equal to 10ms.

SVG module can complete the mutual conversion from capacitive reactive power to inductive reactive power in a very short time, and its fast compensation speed can fully compensate for impact loads.

7) Smaller footprint.

Reactive power compensation cabinet

SLG series reactive power compensation cabinet is composed of filter reactors and self-healing capacitors. This series of products has the characteristics of significant compensation effect, long service life, low investment and quick results. It can not only improve the power factor of the distribution system, but also reduce line losses, suppress harmonics, and improve the safe operation of the entire distribution network.

Features

1) Accurate reactance rate matching;

2) Reactance and capacitance are designed for harmonics to adapt to more complex working conditions;

3) Designed according to the actual compensation capacity, the capacitor has high voltage resistance;

4) The capacitor has self-healing function, high reliability and small switching inrush current;

5) The reactor has its own temperature protection terminal and has complete protection functions;

6) The reactor is vacuum dipped in paint and then cured by heat baking, which has high stability, safety and no noise.

In addition to power quality products mitigation solution, the water treatment company of this project also uses a variety of Elecnova multi-functional power meters, intelligent control, electrical fire alarm system, fire equipment power supplies, thyristor switching units to improve the automation level, safety and stability of the water supply system. , ensuring the safety of water quality and the stability of supply. At the same time, it will also help improve the operating efficiency and management level of water companies, reduce operating costs, and achieve sustainable development. SFERE Electric can customize reasonable and effective solutions according to different customer needs, and is committed to becoming your digital intelligent power distribution solution provider.

About Elecnova/Sfere Electric

Elecnova / Sfere Electric a leading manufacturer and solution provider of Power quality analyzer / Energy analyzer / kWh energy meter / Multi circuit power monitoring system / EV charger metering / Digital power meter / Motor controller / Busway temperature sensor / Harmonic Filter / Power factor correction / Low Voltage power distribution panel / Cloud view Power monitoring system / Energy Storage System.