* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Protection Relay NJBK1 Series Motor Protector
Electric machine wikipedia , lookup
Electric power system wikipedia , lookup
Electrification wikipedia , lookup
Power inverter wikipedia , lookup
Ground (electricity) wikipedia , lookup
Thermal runaway wikipedia , lookup
Induction motor wikipedia , lookup
Immunity-aware programming wikipedia , lookup
Pulse-width modulation wikipedia , lookup
Power engineering wikipedia , lookup
Electrical ballast wikipedia , lookup
History of electric power transmission wikipedia , lookup
Mercury-arc valve wikipedia , lookup
Electrical substation wikipedia , lookup
Brushed DC electric motor wikipedia , lookup
Opto-isolator wikipedia , lookup
Switched-mode power supply wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Current source wikipedia , lookup
Power electronics wikipedia , lookup
Power MOSFET wikipedia , lookup
Stray voltage wikipedia , lookup
Voltage optimisation wikipedia , lookup
Buck converter wikipedia , lookup
Stepper motor wikipedia , lookup
Variable-frequency drive wikipedia , lookup
Earthing system wikipedia , lookup
Protective relay wikipedia , lookup
Three-phase electric power wikipedia , lookup
Electrical wiring in the United Kingdom wikipedia , lookup
Mains electricity wikipedia , lookup
Relay Protection Relay 3. Operating conditions 3.1 Altitude: No more than 2000m. 3.2 Ambient air temperature is -5℃~+40℃,and the average value within 24h shall not exceed+35℃. 3.3 Atmospheric conditions: When the maximum temperature is + 40 ℃,the air relative humidity shall not exceed 50%, and a higher relative humidity is allowable at lower temperatures, for example: at +20℃,the air humidity can reach 90%, and special measures shall be taken to condensation occasionally produced due to temperature changes. 3.4 Class of pollution: 3. 3.5 Inclination between the mounting surface and vertical plane shall not exceed±5°. 3.6 In places without explosion hazard media and no enough gases to corrode the metal and damage the insulation in the media and more conducting dust. 3.7 In places equipped with rain and snow prevention equipment and without steam. 3.8 In places without significant shake, shock and vibration. 3.9 Installation category: Ⅲ. NJBK1 Series Motor Protector 1. General NJBK1 series motor protector (hereinafter referred to as protector) is applicable to the overload, open-phase, three-phase current imbalance and other protection for the AC motors in long-term or intermittent operations with AC frequency at 50Hz, rated insulation voltage at 690V or below and rated operating current at 1A-400A. 2. Type designation N JBK 1 - □/□ □ Rated control supply voltage (AC220V, AC380V) Setting current code(5 : 1A~5A, 10:2A ~ 10A,30:6A ~ 30A, 80:16A~80A, 200:40A~200A, 400:80A~400A) Frame size: 80,400 Design serial number Motor protector Enterprise characteristic code 17 >> Empower the World 3.10 Electromagnetic environment: Environment B. 3.11 Shell protection grade: IP20. 3.12 Rated duty: Uninterrupted duty or eight-hour day working system. Relay Protection Relay 4. Technical data 4.1 Main circuit: Rated insulation voltage: AC690V; rated frequency: 50Hz. Rated current: A Model Setting current range: A Suitable motor power: kW NJBK1-80/5 5 1-5 0.5~2.5 NJBK1-80/10 10 2-10 1~5 NJBK1-80/30 30 6-30 3~15 NJBK1-80/80 80 16-80 8~40 NJBK1-400/200 200 40-200 20~100 NJBK1-400/400 400 80-400 40~200 4.2 Auxiliary circuit: Rated insulation voltage: AC380V; rated frequency: 50Hz; use category, rated working voltage, rated operating current and conventional thermal current. Use category AC-15 Rated operating voltage (V) 240 Rated operating current (A) 1.5 380 0.95 Conventional thermal current(A) 5 5. Structure characteristic 5.1 Structure characteristic 5. 1.1Knob setting current value and trip grade. 5.2 LED displays the current value, setting state, fault code and other information about the maximum phase. 5.3 With overload inverse time-lag protection, open-phase protection, three-phase current unbalance protection and other functions. 5.4 5 optional built-in overload curves,meet the use at different occasions. 5.5 Test / Reset: Operating status, press "Test / Reset" button for a short time to conduct simulated action test, and press it for a long time to enter setup mode; press this button to reset under fault conditions. 5.6 Pluggable terminal blocks, facilitate user connection. 5.7 Integrated design, simple structure, two installation methods of guide rail installation and screw mounting. 5.8 Fault memory and its instruction. In case of motor failure, LED flashes alternately and displays the fault code and maximum phase current value. 6. Protective characteristics 6.1 Overload operating characteristics Overload multiple Action Overload curve 1.05 1.2 1.5 2 5 No action 63 40 22 3.6 6 7.2 Remark 2.5 1.8 Conform to Level 5 time (s) Kr=1 Kr=2 No action 125 80 45 7.2 5 3.5 Conform to Level 10A Kr=3 No action 250 160 90 14 10 6.9 Conform to Leve l 10 Kr=4 No action 500 320 180 29 20 14 Conform to Leve l 20 Kr=5 No action 750 480 270 43 30 21 Conform to Leve l 30 6.2 Open-phase protection action characteristic When any one phase current of the three-phase current of the main circuit is 0, the protector acts for 3s, with a relative error of±20%. 6.3 Action characteristics of three-phase current unbalance protection When three-phase current of the main circuit complies with the formula below, the protector acts for 3s, with a relative error of±20%. 3 Max|I i-I avg| i=1 I avg ×100%>30% Where: I i: Current effective value per phase I avg: Average value of three-phase current effective value Empower the World >> 18 Relay Protection Relay 6.4 Tripping characteristic Time - current characteristic curve 8. Overall and mounting dimensions (mm) 100min 50min 20min 10min 5min 1min 50s 20s Kr=5 10s 101max 2min 2 / T 1 Kr=4 5s 4 / T 2 3×Φ16 Kr=3 Kr=2 2s 6 / T 3 125max Kr=1 1s 2 1 5 8 ×Iset 10 7. Wiring diagram 3 73max 10A 20 2 30 5 Control power supply voltage AC220V wiring diagram 脱扣 等级 设定 断相 电流 设定 不平衡 A相电流 测试 B相电流 4 1 脱扣 等级 过载 5 电流(A) 长按3s 设置——运行 测试 复位 C相电流 NJBK1电动机保护器 113±0.29 L1 L2 L3 N FU1 QS W1 U1 V1 KM FU1 W2 V2 U2 V3 U3 A1 KM W3 A2 98 95 08 07 NJBK1 serises motor protector QF1 QF1 AC220V W4 U4 V4 M 2/T1 6/T3 4/T2 34max 121max 3~ 24max Control power supply voltage AC380V wiring diagram L3 L2 155max L1 FU1 QS V1 U1 FU1 10 72.5max W1 KM FU2 W2 U2 V2 KM W3 A1 A2 98 95 08 20 10A 30 5 过载 断相 不平衡 测试 脱扣等级设定 电流设定 起动延时设定 A相电流 B相电流 C相电流 脱扣等级 80/15 120/30 160/45 40/0 200/60 电流(A)/起动延时(s) 长按3s 设置 —— 运行 测试 复位 NJBK1电动机保护器 07 142.5±0.35 V3 U3 NJBK1 serises motor protector QF1 QF1 AC380V W4 U4 V4 M 3~ 9. Ordering information 9.1 Name and type specification of protector Select the control power supply voltage (AC220V, AC380V) according to the operating requirements Setting current range (1A~5A, 2A~10A, 6A~30A,16A~80A, 40A~200A,80A~400A) 9.2 Order quantity 19 >> Empower the World