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WTB低压无功率补偿柜


一、概述
WTB系列低压无功功率补偿柜采用大功率无触点投切开关或电容投切专用接触器,根据电网电压电流及无功功率情况,由控制器实时进行动态分析、过零判断,实现快速无冲击地投入并联电容器组,以补偿电网无功功率,达到节能降损的目的。执行JB7113—1993《低压并联电容器装置》、GB7251—1997《低压成套并联设备》等标准。
 
WTB series low voltage reactive power compensation ark adopts high power allows contactless switching on—off switch or special contactor,capacitance can according to the power grid voltage and reactive power current situation,by the controller in real time and dynamic analysis,the zero judgment,no impact on the rapid into parallel capacitor group,with power grid reactive power compensation,achieve the goal of energy conservation and loss reduction.performJB7113—1993《Low voltage parallel capacitor devices)》、GB7251—1997《Low voltage complete sets of equipment in paralleI"Such》 as the standard.
 
二、适用范围
适用于0.4KV,50Hz供配电系统进行功率因数补偿,也适用于异步电动机和变压器等感性负载进行就地功率因数补偿,达到功率因数自动调整,减少无功损耗,稳定电网电压,提高供电质量的目的。
 
Applicable to 0.4 KV, 50 hz power supply and distribution system for power factor compensation, also applies to asynchronous motor and transformer and other perceptual load power factor compensation on the spot, to achieve automatic power factor adjustment, reduce loss of reactive power and voltage stability of power grid, the purpose of improving the quality of power supply.
 
三、主要功能及技术特点
控制物理量为无功功率,即电网缺多少无功,控制器控制投入相应的电容器组补偿等量的无功功率,从而实现佳补偿。
控制单元采用智能电子复合式开关:该偿装置中所采用的智能电子复合式开关是机电一体化的新型电子开关,彻底解决了电容投入时的浪涌电流问题。
单相补偿和三相补偿混合控制:由于三相负荷的分散性造成三相电流的不平衡,各相功率因数同样不平衡,有时误差很大,控制器可根据实际情况,进行单相投补或三相同时投补。
完善的保护功能:包括过压、欠压、失压、过流、缺相、短路。谐波保护等安全保护功能,使产品具有极高的安全可靠性。
智能化管理:系统提供智能化管理,可自动保存电网运行的各种数据如三相电压、三相电流、三相功率因数。
有功电能、无功电能、电容投切时间及次数等,并可打印各种报表数据。
 
MaIn functions and technicaf features.
Control quantities for reactive power,that is,how many reactive power grid to lack,the controller control input corresponding capacitor group the same amount of reactive power compensation,achieve the best compensation
Control unit adopts the intelligent electronic composite switch:the compensation device of
intelligent electronic compound switch is adopted by the mechanical and electrical integration of new electronic switch,completely solve the problem of surge current when the input capacitance
Single—phase and three—phase hybrid control compensation:due to the dispersion of the three‘phase load imbalance of three phase current in each phase the power factor also imbalance,sometimes the error is large,the controller according to the actual situation,for single—phase fill or th ree·phase vote to fill at the same time
Perfect protection function:including overvoltage,undervoltage,loss of pressure short circuit,over current,lack of phase,harmonic protection safety protection function,make the product has avery high safety and reliability.
Intelligent management: provide intelligent management system, can automatically save power grid operation of the various data such as three-phase voltage, three-phase current, three-phase power factor.
Active power,reactive power,time and frequency,capacitor and can print various reports
 
四、执行标准
JB7113—1993 低压并联电容器装置
GB7251—1997 低压成套并联设备
 
JB7113-1993 low voltage parallel capacitor devices
GB7251-1997 low voltage complete sets of parallel devices
 
技术参数Technical dates
 
额定工作电压The rated working voltage AC380V(50Hz)
额定绝缘电压 The rated insulation voltage AC660V
水平母线额定电流Level of busbar current rating ≤3150A
短时耐受电流(IS)Short-term resistance current 15KA
额定峰值耐受电流Rated current peak tolerance 30KA
防护等级degree of protection 

IP30

 
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