Intelligent Combined Low Voltage Electric Switchgear

Overview

GGJ low-voltage reactive power intelligent compensation device adopts computer aided design(CAD),introduces microcomputer control,and implements intelligent tracking compensation for reactive power.It has reasonable structure and advanced technology,and is widely used in low-voltage power grid to improve power factor,reduce reactive power loss and improve power supply quality.It is a new energy-saving product.Used for reactive power compensation of 130-600KVA three-phase transformer.

Model and meaning

Working conditions

◇Altitude:≤2000m;

◇Ambient temperature:-20℃～+45℃;

◇Relative humidity:≤90%at20℃;

◇Installation environment:no harmful gases and steam,no conductive or explosive dust and serious mold.

Main feature

◇Intelligent controler control,full-featured.Reliable performance,automatic compensation;can increase the power factor to 0.9 or more;

◇Real-time display power grid power factor,display  range:lag(0.00-0.99),ahead(0.00-0.99);

◇With over-voltage,harmonic,over compensation,system failure,lack of phase,overload and pther comprehemsive protection;

◇Memory has been set parameters,the system will not lose parameters after power failure,the grid back to normal,automatically enter the running state,no personnel on duty;

◇According to the grid load balance,to take the phase compensation mixed compensation;

◇Anti-interference ability,can withstand the direct input from the grid amplitude of 2000V interference pulse,higher than the national professional standars.

The main technical parameters

◇Rated voltage:0.38-0.66kV;

◇Rated frequency:50Hz;

◇Rated capacity:1-600kvar;

◇Applicable voltage range:(0.85-1.1)times the rated voltage;

◇Maximum allowable current:1.3times the rated current;

◇Control circuit:1-16loop;

◇Switching time:1-150s/times,adjustable;

◇Work:automatic,continuous operation.

Distribution network detection function

◇Real-time measurement and the whole point of the record transformer low-voltage side of the three-phase voltage,current,frequency,active power,reactive power,power factor,reactive power;voltage and current total distortion rate and 2-25 Subharmonic content;

◇RS-232 and RS-485 interface,can be handheld computer data copy,but also through the remote communication function to achieve wireless meter reading,device testing,parameter settings and time measurement data and records Data reading;

◇Data analysis function:the operation load data can be analyzed and processed,statisical query;comprehensive analysis of power supply quality,calculate the voltage pass rate,power supply load rate,reliability and maximum load rate;Query power factor,active power and reactive power;draw each phase voltage,current,power factor curve;print comprehensive analysis and statistical reports.