Overview of Local APFC
3.3Kv Automatic Local reactive power compensation for motors,Arc Furnace(Local APFC), based on Static Var Compensator(SVC) aims to improve power factor and enhence power quality, utilising capacitors to offset usually inductive loads(motors). Local APFC system increase the efficiency of power supply, delivering immediate cost savings on electricity.
ZD-GWJ 3.3Kv local APFC Panels : can detect the reactive power needed by the system in real time,compare it with the set value, carry on the automatic intelligent capacitor-switching on/off, make the reactive power of the system achieve dynamic balance, in order to improve the power factor of the system, stabilize the system voltage.
Following are effect before and after power factor correction,
3.3kv Local Reactive power compensation panels
ZD-GWJ-3.3/6-
Name
Model
Rated Voltage
3.3Kv
Connection Type
Three-phase 3 wire
Rated Frequency
50/60HZ
Step capacity
100~1200kVAr
Rated Capacity/panel
2400kVAr
Power Factor
0.9
Switch
Vacuum Contactors
Capacitance Tolerance
-5%, +10%
Reactance ratio
6% 12% or customerized
Switching
Automatic switching Capacitors
Storage temperature
-40~85 °C
Working temperature
-25~55 °C
Humidity
≤95%,non-condensate
Dimension (W*D*H,mm)
1200*1600*2400
Installation
Indoor, free standing
Altitude
<1500m without de-rating
Certification
ISO9001,CCC, Type Test Report
3.3Kv LOCAL APFC Capacitors and Reactors
Features of 3.3kV APFC
■Fast return on investment through lower power costs
Power factor correction reduces the reactive power in a system. Power consumption and power costs drop in proportion.
■Effective use of installation
An improved power factor means that an electrical installation operates more economical (higher effective power for the same apparent power).
■Improved voltage quality
■Reduced voltage drops
■Optimum cable design
Cable cross-sections can be reduced with improvement of power factor (less current). In existing installations for instance, extra or higher power can be transmitted.
■Reduced transmission losses
The transmission and switching devices carry less current, i.e. only the effective power, meaning that the ohmic losses in the leads are reduced.
Application
ZDDQ automatic capacitor banks are widely used for fluctuating loads such as motors, variable frequency drives, melting furnace from Steel Rolling mills,Chemical industry, Cement plant, Suger plant, Textile, Hospitals, Hotels, Building segment,Automobile industry,Oil and gas industry,public grid etc.
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