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无刷无环起动器

无刷自控软起动器

发布时间:2012-03-05
无刷自控软起动器

无刷自控软起动器、无刷无环起动器、无刷液阻真空电机软起动器、无刷真空电机起动器、无刷自控电机启动器、无刷无环启动器、水阻柜、液阻柜、频敏变阻器、频敏柜、无刷变阻柜、无刷起动器、无刷启动器、绕线电机起动器、绕线电机启动器、滑环电机起动器、滑环电机启动器

概述     

  无刷自控软起动器是将起动电阻直接安装在电动机的转轴上,利用电机旋转时产生的离心力作为动力,控制起动电阻的大小,达到减少电机起动电流、增加起动转矩,使绕线式异步电动机实现无刷自控运行的装置。它主要由机壳、起动液、动极板、弹簧、接线柱、安全阀、排气阀等构成。该起动器具有起动电流小,起动转矩大,自动适应电源及负载的变化,保护电机等特点。广泛应用于冶金、机械、石油、化工、矿山、建材、造纸、橡胶、水厂、电站等所有工业领域的球磨机、破碎机、风机、水泵、打浆机、空压机、轧机、热磨机、制氧机等电机传动设备中绕线式异步电动机的起动。它可以代替绕线电机的滑环碳刷及其起动装置。

 

SUMMARIZE

      It is to install the starting resistance on rolling shaft of motor.using the centrifugal power as driving, control the starting resistance to reduce the starting current, increase torque, equipping the no brush self -controlled motor to winding asynchronous motor. it is composed of shellstarting liquidmoving  magnetic  boadspringconnecting pillarsafety valveexhausting valve etc. the starter has the advantage at small current large starting torque,adjustable the change to power and load so as toprotecting the motor. it can be widely used to start the winding asynchronous motor in ball millercrusheruser blower fanpumpbeatercomprssorcrusherdefibrateroxygenerator etc of metallizationchemical-industrymachinarypetroleumminingconstrctionrubberpower station etc. it can stead of the collector ringcarbon brush of winding motor.

 

•产品优点

       起动器采用无刷无环运行,操作简单,安装拆卸方便,可大大减少维修费用,并可根据机械负载的特性,自动改变起动电阻的大小,调节起动转矩和起动电流,使电动机处于最佳起动状态。

       能在保持电机起动转矩不变的情况下,使起动电流从7Ie降到1.6Ie,并能以最大转矩起动电机。它由电阻起动装置发展而来,具有如下创新点:

       1、无刷自控软起动器彻底根除使用滑环、碳刷时所造成的各种危害。去掉传统、复杂的起动装置,操作方便,并可减少维修费用。

        2、无刷自控软起动器节省安装空间和二次回路电缆,减少起动装置的功率消耗,节约了电能。

        3、起动控制由起动器根据电机的转速自动完成,彻底避免了其它起动装置不能根据负载的大小,自动跟踪电机起动过程而造成电机或起动器损坏等不良现象。

        4、电机运转过程中,如出现堵转现象,随着电机转速的降低,起动器会自动投入运行,达到增加电机转矩,减少起动电流的目的。

        5、无刷自控软起动器克服了定子控制式电机软起动器的起动转矩与起动电流的平方成正比这一缺陷,在降低电机起动电流的同时,增加电机起动转矩,并能以最大转矩起动电机,采用无刷运行,去掉了传统、繁琐、多触点元件组成的起动装置,其起动装置的功率损耗及电机的起动时间比定子控制式电机软起动器减少10倍以上,但起动器的综合价格不及其它软起动器的1/3

         6、无刷自控软起动器直接安装在电动机的转轴上,利用电机旋转时产生离心力作为动力,控制电阻的大小,达到减少电机起动电流、增加起动转矩,实现无刷自控运行的目的。

          7、无刷自控软起动器采用防锈、防变质、防冻(冰点心-25)、防沸(沸点为120 )的四防起动液,提高起动器的使用寿命。

          8、无刷自控软起动器设置安全排气阀,在电机转速达到额定转速后,自动打开排气阀,保证起动器的安全可靠运行。

 

ADVANTAGE OF PRODUCTION

       The start is easy to operate and install, which can reduce the expense of repire. it can take the motor to the best situation under adjusting the resistance torque and current.

       The starting current can be reduced from 7le to 1.6le under the condition of keeping the torque unchanged.it can start the motor with largest torque:

        1It is from resistance starting equiment, which has below new characteristics:removing  the harm from ring and carbon brush.it saves repairing expense without traditional complex starting equipment.

         2Saving the installation space and secondary loop cable,reducing the power waste of starting equipment, power wasteless.starting control is completed from starter  according to the speed of motor.

         3It avoids the phenomena that some damage to motor and starter  from other equipment can not trace the starting process of motor by overload.

         4During the process of running, if it appears locked-rotor, the starter will  automatically run for the reduction of motor speed to reach the goal of increasing the torque and reducing current of motor.

         5Conquering the default that square of starting current is proportional to torque on stator controlled motor soft-starter with starting current. increasing the motor torque when reducing the current. adopting brushless running, it is 10 times to save the power and starting times.however, the price is not reached 1/3 than other soft-starter.

         6The starting resistance is directly installed the rotoring shaft of motor, using the centrifugal power as driving, control the starting resistance to reduce the starting current, increase torque equipping the no brush self -controlled motor to winding asynchronous motor.

         7In order to prolong the using life, adopting the starting  liquid to resisting rustdeteroprate freezeboiling(boiling point is120).

         8To guarantee running safety, it needs to set the safey exhausting valve, which will be opened automatically when reaching the rated speed.

 

•适用范围

电源电压:三相50Hz    380V-10KV

适用电机:三相绕线式异步电动机

起动频度:每小时不超过10

海拔高度:不超过2000M

环境温度:最低气温-25℃,最高气温+40

               无易燃、易爆、无严重腐蚀性气体的场所

 

AREAS OF APPLICATION

Power Voltage: three phase 50Hz   380V-10KV

Adapting Motor:  thress phase winding asynchronous motor

Frequency of Starting: less than 10times per hour

Height of Elevation: less than 2000m

Tempreture of environment: the Lowest: -25,  the Highest: +40

the place of  no combustible explosivecaustic gas

 

•主要技术参数

1、额定电压:380V6KV10KV,配用电机功率:130-2000KW

2、起动特性:

     a.轻载: 0.6Me     b.中载: 1Me     c.重载:1.5Me

3、电机实现恒转矩、恒电流起动,起动电流、起动转矩可根据用户要求方便、连续地无级调整。

4、实现绕线式电动机无刷运行,彻底根除使用滑环、碳刷所造成的各种危害,节省了起动控制柜及二次电缆,使绕线式电机起动装置的成本降低70%,运行维护工作量减少90%,电机及其控制装置的可靠性提高一倍以上。

 

MAIN TECHNICAL PARAMETER

1Rated Voltage: 380V6kV10kVAdapting Motor Power: 130-2000KW

2Starting Characteristic:

      a.Light- load: 0.6Me       b.Mid-load: 1Me       c.Heavy-load: 1.5Me

3The constant torque, current start, starting currentstarting torquecan be adjusted by customers request.

4All kinds of harm will be removed from rings and carbon brush when using brushless soft-starter, and saving the controlled cupboard and secondary loop cable. the cost of equipment of winding motor will be reduced 70%90%  of  repairing. the reliability of motor and its controlled equipment will be increased above 1 times.

 

 •安装及接线

        1、先拆下电动机的护罩、滑环、碳刷、刷盒、刷盒支架及短路环装置(有的电机无短路环装置)等全部零件。

        2、拆卸滑环时,为防止后来接线时发生差错,应将同一相的两根导线捆在一起。

        3、用游标卡尺,分别测量电机的轴径和起动器的孔径、键宽、键高等尺寸是否相同,如有差异,应及时同本公司联系,以求解决。

        4、在轴上涂少许润滑脂或机油,将起动器键槽对准轴上的键位置,然后用铜棒将起动器轻轻地敲击到装配位置,并用钢丝挡圈卡住,防止起动器轴向串动。

        5、装配时,切忌乱敲乱打,以免造成内部零件损坏或漏液。起动器装配完成后,将转子的出线接在起动器接线柱对应位置(对于有六根出线的电动机,应将同一相的两根导线,接在同一色的两个接线柱上)即可,具体接线如下图所示。

 

INSTALLATION AND CONNECTION

         1Removing all parts of coverringscarbon brushbrush boxbrush box shell and short circuit ring equipment(some motor have no short circuit ring equipment).

         2In order to avoid the mistake when remove rings, it should to bond two conductor trace line of same phase.

         3To measure the hole diameterwidth and heightof key by vernier caliper, if there is any discrepancy, pls do not hesitate to contact us.

         4Greasing a little of lubricating, machine oil on the shaft, install the keyseat of starter to the keyseatof shaft. then gently to knock on the starter to installation location. to avoid the shaft shake of starter it should be locked by steel wire and distance ring.

         5In order to prevent the harm of inter parts or liquid leakage. it can not knock heavily, after finishing the installation, to connect the out- line of stator to corresponding location of starter connector bing, (for lines motor, should to connect 2 same phase conductor line  with 2 binding) post of same colour, the detailed connection is as below.

•运行与维护

         1、无刷自控电机软起动器内的元件除电阻在起动时会发热外,其它均不会发热,本装置按免维护设计,请不要自行将外盖打开,以免损坏起动器内的元件。      

         2、当起动器内的液体低于规定液面时,应补充起动液至规定的液面。

         3、安全排气阀是保证电机起动过程中,不向外喷液的重要部件,它在电机转速达到额定转速时,会自动打开,保证起动器内的压力与大气压一致,因此,请用户不要自行调整。

 

OPERATION AND MAINTENANCE

         1Beside the resistance, other component of starter will not hot when   starting, in order to avoid harming the component, pls do not open the cover, for its desing is maintenance free.

         2When the liquid is below than the requetment, it should to complement the liquid to the stated surface.

          3The safty exguasting valve is to gurantee the motor will not spray liquid during starting. it will open when the speed reach the rated. to keep the pressure f starter same as atmospheric pressure, so the custumer will not adjust by themselves.

 •订货须知

JRJZRYRYZR系列电动机由于滑环处的尺寸不是统一设计生产,各制造厂家的尺寸,参数略有参异。为此用户订货时,须提供电机铭牌数据,生产厂家和电机用途,才能保证一次安装成功。

 

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