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LFR-330 系列相序继电器

产品名称:LFR-330 系列相序继电器

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产品详情

适用范围 Applicable scope

       本缺相、相序保护器是一种应用大规模数字集成电路、无变压器设计的新型高科技专利产品(独家生产,如有雷同纯属仿冒)。通用性强(3Ph 220V~380V、460V~660V 50Hz/60Hz均可使用),体积超小,外观非常漂亮,是取代施耐德相序保护器(RM4-TG20)、ABB、西门子、欧姆龙(OMROM)及其它国产相序保护器(XJ3、XJ5...系列)最理想的产品。

       The missing phase and phase sequence protector is a new high-tech patented product with large scale digital integrated circuit and no transformer esign.Production, if any, is a knockoff. Strong universality (3Ph 220V ~ 380V, 460V ~ 660V 50Hz/60Hz can be used), body.The product is very small and very beautiful. It is the replacement of the schneider phase protector (rm4-tg), ABB, Siemens, omron (OMROM).And other domestic phase sequence protectors (XJ3, XJ5... Series) ideal product.


保护特点 Characteristics of protection

1.动态缺相、静态缺相保护:指被保护设备在运行状态或非运行状态时,任意一相发生断相故障。指示灯形式为:红灯亮,并优先;

2.错相保护:防止L1、L2、L3三相交流电源相序接错的一种保护措施。即时动作。指示灯形式为:黄灯亮;

3.电压不平衡保护:指三相电压不平衡将会影响设备安全运行的一种电压不平衡率的保护。电压不平衡率高于8%时。指示灯形式为:缺相红灯亮,并优先;

4.延时保护:有故障出现时监视器延时1~2秒后动作,继电器释放;

1. Dynamic missing phase and static lack of phase protection: when the protected equipment is in operation or non-operating state, any phase failure occurs. Refers to theThe lamp form is: red light, and priority;

2. False protection: one kind of protection measures to prevent the communication power supply in L1, L2 and L3. Instant action. The indicator light is yellow.The light;

3. Voltage imbalance protection: the protection of a voltage unbalance rate that will affect the safe operation of the equipment will be affected by the unbalanced three-phase voltage. Voltage imbalanceThe rate is above 8%. The indicator light is in the form of: absence of red light, and priority;

4. Delay protection: the monitor is delayed for 1~2 seconds after the failure occurs, and the relay is released;


性能特点 Characteristics of performance

1.监视器的保护功能不受线路或负载的电流大小,冲击电流、不平衡电流和负载性质的影响。能够全性能、全气候长期工作。功耗不大于2W;

2.用于电机保护时对电机接线方式无要求;

3.本产品符合GB/T 14048.1-2000、GB14048.5-2001 eqv IEC60947-1:1999;

4.本产品的EMC符合GB4343-1995的无线电干扰特性测量方法和允许值。

1. The protection function of the monitor is not affected by the current size of the circuit or load, impact current, unbalanced current and load nature. Can all sexAbility to work long term. The power consumption is not greater than 2W;

2. No requirement for motor connection mode when used for motor protection;

3. The product conforms to GB/T 14048.1-2000, GB14048.5-2001 eqv iec60947-1:99;

4. The EMC of this product conforms to the measurement method and allowable value of GB4343-1995 radio interference characteristics.