Static Var Generator Panel,Active Power Line Conditioner

Individual compensation(Reactive compensation systems)

This type of compensation is applied to motors, transformers, and in general to loads with a high time of operation. Capacitors are directly connected in parallel to the terminals of the loads. This system minimizes the reactive current circulating through the installation, enabling the use of smaller switchgear and power lines or cables, which means a lower capital expenditure for new installations. In the case of existing installations, utilising capacitors for power factor correction will increase the maximum apparent power that can be supplied to the installation. However great care must be taken in selecting the size of capacitor because of the risk of self excitation of the electric motor.
view more
Group compensation(Reactive compensation systems)

Several inductive loads can be grouped together and equipped with a common capacitor bank. This system usually applies for users that have their own installations with distribution transformers and high voltage power lines/cables. The reactive power that is consumed by the transformers is compensated by the permanently connected capacitors to the secondary side of the transformers.
view more
Centralised compensation(Reactive compensation systems)

Centralised compensation by means of an automatic capacitor bank with automatic regulation offers the most simple and economical solution. The reactive power is subdivided in a number of capacitor steps that can be connected independently. A reactive power controller continuously measures the needs of the installation and connects or disconnects the capacitors until the target power factor is achieved. The advantage of this system is that the total capacitor power is smaller than the sum needed for individual compensation. Therefore this system is a good economical solution.
view more
Where should the power factor correction equipment be installed

After determining the required size capacitor in kVAr, the next step is to decide on the location for installation of the capacitor bank. It is difficult to set definite guidelines for location of capacitor installation. However, the following general rule should be kept in mind: As close as possible to the load to be compensated.
view more
Power factor correction control relay

When selecting a power factor correction relay the following main functions should be considered: 1.Measurement of the required reactive power and control the capacitor switching according to the power factor desired or pre-set value. 2.Indication of power factor, preset parameters and specified installation data. 3.Disconnect the capacitors when a system voltage drop occurs, this will prevent significant overvoltages in the installation and the subsequent damage to switchgear insulation. 4.Allow manual control. 5.Provision for a visual display of signal lamps for monitoring the number of capacitors steps switched into the system. 6.Possible implementation into a building management system
view more
Why to improve the power Factor?

A good power factor makes it possible to optimize on electrical installation and provide the following advantages • No billing for reactive energy. • Decrease in the subscribed power in kVA • Limitation of active energy losses in cables given the decrease in the current conveyed in the installation • Improvement in the voltage level at the end of the line • Additional power available at the power transformers if the compensation is performed in the secondary winding
view more
Non-characteristic harmonics

Those harmonics that are produced as a result of imbalance in the AC power system or asymmetrical delay of the firing angle of the converter. They are also produced by other non-linear, time-varying devices, for example frequency converters, fluorescent lamps, arc furnaces, electric welding machines, etc. (IEC 61642)
view more
Reactive power compensation

Most of the apparatus and loads connected to the electrical power system consume both active and reactive (inductive) power. Some examples of such components are transformers, transmission and distribution lines,induction motors, rectifiers, induction furnaces, etc.The most economical method of reducing reactive power consumption in electrical power systems is by installing capacitor banks. This method is called reactive power compensation.
view more
Harmonic filtering

In a perfect world, the voltage and current in an electrical AC power system have a sinusoidal waveform, with specific amplitude, frequency and phase angle. In the real world however, this is seldom the case. If the voltage is measured with an oscilloscope, the sinusoidal curve is always more or less distorted by sinusoidal waves different from the fundamental frequency. These disturbances called harmonics are generated by nonlinear loads in the system. The degree of distortion is dependent on the magnitude of the individual harmonics and can be expressed as Total Harmonic Distortion, THD. Active Harmonic Filter and Passive harmonic filter are the solutions of harmonics mitigation.
view more
Apparent power (S)

Apparent power or total power is a combination of active power and reactive power. Apparent power is measured in VA, kVA, MVA.
view more
Reactive power (Q)

Reactive power is a product of an AC system. Reactive power is used to produce magnetic fields. Reactive power is mea- sured in var, kvar, Mvar.
view more
Active power (P)

Active power is the useful power that does the actual work. Active power is measured in W, kW, MW.
view more

1 ... 5 6 7 8 9 10 11

a total of 11 pages

what are you looking for?

Active Harmonic Filter

Static Var Generator

Automatic Power Factor Correction Panels

Energy Storage System(ESS)

Hybrid Power Factor Correction

MEC/Multifunction Electronic Controller & Optimizer

Passive Harmonic Filter

Integrated Capacitors

Individual compensation(Reactive compensation systems)

Group compensation(Reactive compensation systems)

Centralised compensation(Reactive compensation systems)

Where should the power factor correction equipment be installed

Power factor correction control relay

Why to improve the power Factor?

Non-characteristic harmonics

Reactive power compensation

Harmonic filtering

Apparent power (S)

Reactive power (Q)

Active power (P)

what are you looking for?

Resources