適用范圍 Applicable scope
TVRD-380V系列三相交流保護繼電器（又稱三相電源監(jiān)視器、相序保護器、過欠壓保護器等）主要用于交流50/60Hz，額定電壓460V以下，工業(yè)三相220V、380V、440V、460V等電壓級別的各種故障檢測，對三相輸入電源的電壓過高、電壓過低、缺相、逆相(相序)、三相電壓不平衡等提供繼電保護，產(chǎn)品廣泛應用于空壓機、電動機、配電箱、水泵、油泵、空調(diào)機組、電控箱、配電柜、起重機等，如空調(diào)壓縮機保護，各種電梯的電源監(jiān)視，水泵、油泵防缺相、逆相保護等，是工業(yè)設(shè)備運行中維護設(shè)備工作電壓正常的的保護產(chǎn)品。
本產(chǎn)品符合GB14085.5－2001 eqv IEC60947－1：1999標準。
TVRD-380V series three-phase ac protection relay (also known as three-phase power monitor, phase sequence protector, overvoltage protector, etc.)It is used to communicate 50/60hz, rated voltage 460V, industrial three-phase 220V, 380V, 440V, 460V, etc.Fault detection, the three - phase input power supply voltage too high, too low voltage, phase - phase, reverse phase (phase sequence), three-phase voltage imbalance, and so on provide relay.Protection, products are widely used in air compressor, motor, distribution box, water pump, oil pump, central air conditioning unit, electric control box, power distribution cabinet, starting.Heavy machinery, such as the central air conditioning compressor protection, various elevator power monitoring, water pump, oil pump anti - phase, inverse phase protection, is industrial.Maintain
the normal working voltage of the equipment and protect the products.
This product conforms to gb14085.5-2001 eqv iec60947-1:99 standard.
結(jié)構(gòu)特點 Structural characteristics of
1）安裝方式：該保護器底座采用導軌式，內(nèi)設(shè)兩個M4螺孔結(jié)構(gòu)，直接獨立安裝或HT35導軌安裝。
2）指示燈：以5個指示燈分別來指示：正常，缺相（電壓三相不平衡），逆相，過壓，欠壓。
3）外型尺寸： 68mm×35mm×76mm。
1) installation method: this protector base adopts the guide type, and two M4 screw holes are installed, and the installation of direct independent installation or HT35 guide rail is installed.
2) indicator light: it is indicated by five indicators: normal, missing phase (voltage three-phase imbalance), inverse phase, overvoltage, undervoltage.
3) external dimension: 68mm x 35mm x 76mm.
保護特性 Protective properties
1）缺相保護：指被保護線路在運行狀態(tài)或非運行狀態(tài)時，任意一相發(fā)生斷相故障，延時2S動作。
2）逆相保護：防止L1、L2、L3三相交流相序接錯的一種保護措施，延時2S動作。
3）電壓不平衡保護：指三相電壓不平衡將會影響線路安全運行的一種保護措施，三相不平衡率＝×99%>10%時，保護延時2S動作。
4）過壓保護：指被保護線路電壓高于設(shè)定值，延時3~8S動作，恢復回差為6~20VAC。
5）欠壓保護：指被保護線路電壓低于設(shè)定值，延時3~8S動作，恢復回差為3~20VAC。
1) lack of phase protection: when the protected line is in operation or non-operating state, any phase fault occurs and the delay 2S action.
2) reverse phase protection: a protective measure that prevents the communication phase sequence of L1, L2 and L3 phases, and the delay 2S action.
3) voltage imbalance protection: the three-phase voltage imbalance will affect the safe operation of the line, and the three-phase unbalanced rate = x.When 99% BBB 0 10%, the protection delay 2S action.
4) overvoltage protection: the voltage of the protected line is higher than the set value, the delay is 3~8S, and the return difference is 6~20VAC.5) under-voltage protection: the voltage of the protected line is lower than the set value, the time delay is 3~8S, and the return difference is 3~20VAC.
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