ZRFC H.V. Passive Harmonic Filter

Harmonic Filter

General introduction:

    1, ZRFC series of high-voltage passive filtering device is composed of multiple LC filtering braches encompassing filtering capacitor, filtering reactor, free-inductance resistor,which is connected in parallel to the power network with nonlinear load.

    2, All the filtering branches designs take key points into account including: the components and amount of harmonic and Var compensation. For the harmonic, each filtering branch works the same as the low-resistance route way, making most relevant harmonic flow into this branch. In this way, the filtering gets done and also the voltage common point and current distortion get less. Besides this, the device can supply the power system with capacitive Var power to enhance power factor of the power system.

    3, The equipment can be used for different voltage class (3~35kV), with capacity ranging from hundreds of kilovar to several ten thousand kilovar

Main performance characteristics:

    1, Professional simulation calculation, design, check, to optimize the device design

    2, Tailor-made filtering reactor and good-quality filtering capacitor adopted

    3, Functions to keep the harmonic from increasing, and avoid resonance with power system available

    4, Simple structure, low investment, reliable operation performance and low-cost maintenance

    5, High-quality filtering capacitor featuring high reliability, low power-consumption, low temperature while working

    6, Perfect capacitor protection is as follows: high-voltage step-by-step ejecting fuse adopted to carry out short-circuit protection for single capacitor, neutral-point imbalance current protection, open delta voltage protection, and voltage differential

protection adopted for capacitor banks imbalance protection for capacitor banks

    7, Well-developed protection for the following: over-current, over-voltage, low-voltage,

low cycle and so on.

Main technical parameters:

_____________________________________________________________________

Rated voltage                            3~35kV_____________________

Rated frequency                          50Hz/60Hz____________________

Harmonic filtering                    5^th, 7^th, 11^th, 13^th or above(based on

_______________________________________________contents of harmonic)_ 

Filtering efficiency                     More than 70% of harmonic eliminated

Power factor                                  >0.90                   

Var compensation                       Power factor extends 0.92         

Duty class                                     Continuous             

Structure style                                Cabinet,(half) opening    

Ambient temperature                         -10~+40                

Relative humidity                         Max. 85%, no condensing    

Altitude above sea level                   Below 1000m               

Note: Any special conditions, please consult us.

Parameters required for design:

    1, Power system drawing and parameters: rated voltage of power system, work voltage and so on.

    2, Points of common connecting (PCC) short-circuit capacity, power-supply protocol capacity, power-consumption protocol capacity

    3, Parameters of load and work conditions

    4, Active power factor, natural power factor and target power factor

Cable arrangement

Mounting location and dimensions

Note: Full-scale assessment on the users power system will be performed by SSE upon request, and optimal scheme will also be proposed as well.