LR1118-30-AB3-B-T中文资料

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QUALITROL

QUALITROL

QUALITROL®118 ITM智能干式变压器监控仪准确、灵活,可靠监控干式变压器•最多监控3个干式变压器绕组•内置风扇控制器、风扇操作装置、报警和跳闸功能• 0-1或4-20mA输出,用于与SCADA系统集成•通过CE、UL和CSA认证应用 118系列智能变压器监控仪是满足您所有干式变压器监控需求的正确选择。

说明 118监视器最多可监测三 (3) 个干式变压器绕组的温度。

它通过比较最高温度的绕组与预选定的继电器设定点温度,操作风扇、警报、跳闸和两 (2)个附加继电器。

前面板具有相应的LED指示。

使用带保险丝的重载风扇控制继电器,最多可控制两 (2) 个冷却风扇组。

模拟和数字通信可用于SCADA系统。

QUALITROL® 118 ITM智能干式变压器监控仪热电偶监视器风扇操作装置118 ITM输出认证• 118 ITM可监控多达三 (3) 个“K”型热电偶•设计先进,运行可靠• 118 ITM可显示三 (3) 个热电偶输入、存储的最高温度及其相关绕组•风扇操作装置可根据客户要求进行配置• 118 ITM内置可配置风扇操作装置,可以定期激活风扇,实现最大的资产保护(需要配置软件)•风扇输出:1或2个SPST触点,每个触点120/240 VAC时额定电流为30安培,120 VAC时额定容量为1 hp, 240 VAC时额定容量为2 hp •警报输出:1个SPDT触点,额定电流为10安培 @ 120 VAC或8安培 @ 240 VAC(电阻式)•跳闸输出:一 (1) 个SPDT触点,120 VAC时额定电流为10安培,240 VAC时额定电流为8安培(电阻式)•远程输出:0-1 mA,最大负载10000欧姆• 4-20 mA,最大负载为500欧姆•可选RS-485 Modbus通信• Qualitrol致力于提高所有智能变压器监控仪的质量和可靠性,因此118 ITM经过严格测试,符合UL标准873、加拿大标准C22.2第24-93号和欧盟合规性声明CE技术参数机械(面板安装)机械(铰链安装)通过5.37"[136.4 mm]宽 x 7.97"[202.4 mm]高的切口安装面板安装孔5.74"[145.8 mm]宽 x 8.34"[211.8 mm]高Ø.261[6.63mm]安装:深度: 2.22"[56.4mm]重量:3lbs[1.4kg]终端:螺纹接线柱;最大12号线规安装:通过8.82"[224.03mm]宽 x 15.12"[384.05 mm]高的切口安装铰链安装孔7.94"[201.63mm]宽 x 14.25"[361.95mm]高Ø.261 [6.63mm] x (4)深度: 4.28" [108.71mm]重量:5lbs [2.3kg]终端:螺纹接线柱;最大12号线规测量范围:0°C-250°C 显示分辨率:1°C 增量输入测量精度:±3°C内存保留:40年(断电时)风扇操作装置:风扇运行时间 - 1至120分钟风扇循环时间 - 0.01至30.0天开机时开始计时可选Modbus 通信:通过电气隔离的2线或4线RS-485链路储存温度:-50°C 到+72°C 相对湿度:10%至90%,非凝露Hi-pot 测试:1500 VAC 50/60 Hz ,持续1分钟;继电器触点、所有其他端子的电源输入以及接地振动:50/***********“位移冲击:3个正交平面中的10 Gs瞬态抑制:根据ANSI 37.90A-1989振荡波形试验标准远程输出电流回路:(需要配置软件)0到1 mA ,最大负载10000 Ohms 0到10 mA ,最大负载1000 Ohms 0到20 mA ,最大负载500 Ohms 4到20 mA ,最大负载500 Ohms 0 to 5 V 精度:±3°C输入功率:80到300 VAC 50/60 Hz ;<10Watts 48至280 VDC 通用电源<10W 性能工作温度:-30°C 到+72°C 环境前面板: 6.5"[165.1毫米]宽 x 9.10"[231.1毫米]高风扇触点额定值:报警和跳闸: 1 Hp 2 Hp - - - - - - - - - -风扇电路额定值:UL 额定电流为20安培前面板:8.82"[224.03mm]宽x 15.1"[231.1 mm]高(铰链安装)马力电阻式伏特120 VAC 240 VAC 120 VAC 240 VAC30 A 30 A 10 A 8 A关于QUALITROL ®QUALITROL® 118 ITM 智能干式变压器监控仪118 ITM 尺寸图用于安装软件的USB 电缆 + CD ,通过PC 配置设置 和校准CAB – 625 & 626“K”型热电偶118 ITM-P面板安装118 ITM-H铰链安装Qualitrol ®公司为电力公司和制造公司生产用于变电站和变压器的监测与保护装置,是变压器资产保护设备、故障记录器和故障定位器销售与安装的全球领导者。

LR1108L-18-AB3-A-R中文资料

LR1108L-18-AB3-A-R中文资料

UNISONIC TECHNOLOGIES CO., LTDLR1108CMOS IC1A FAST ULTRA LOW DROPOUT LINEAR REGULATORDESCRIPTIONThe UTC LR1108 operate from a +2.5V ~ +7.0V input supply as fast ultra low-dropout linear regulators. Wide output voltage range options are available. The fast response characteristic to make UTC LR1108 suitable for low voltage microprocessor application.The low quiescent current operation and low dropout quality caused by the CMOS process.The UTC LR1108 has ultra low dropout voltage; 300mV at 600mA load current typically.The ground pin current is typically 200uA at 1mA load current. ERROR Flag: When the output voltage drops 10% below nominal value Error flag goes low.Output Voltage Precision: Multiple output voltage options are available and ranging from 1.2V ~ 5.0V at room temperature with a guaranteed accuracy of ±1.5%, and ±3.0% when varying line, load and temperature.FEATURES* Ultra low dropout voltage * Low ground pin current * 0.04% load regulation* The guaranteed output current is 1A DC * Output voltage accuracy ± 1.5%* Low output capacitor required* Overtemperature protection and overcurrent protection*Pb-free plating product number: LR1108LORDERING INFORMATIONOrdering NumberPin AssignmentNormal Lead Free Plating Package12 3 4 5 PackingLR1108-xx-AB3-A-R LR1108L-xx-AB3-A-R SOT-89G O I - - Tape Reel LR1108-xx-AB3-C-R LR1108L-xx-AB3-C-R SOT-89G I O - - Tape Reel LR1108-xx-AF5-R LR1108L-xx-AF5-R SOT-25I G SD ERROR O Tape ReelMARKING INFORMATIONSPXXBLOCK DIAGRAMV INSDV OUTERRORELECTRICAL CHARACTERISTICS(Cont.)Note 1. Conditions for which the device is intended to be functional is indicated by operating ratings, but specific performance limits isn’t be guaranteed. To make sure of specifications and test conditions, read ElectricalCharacteristics. Only for the test conditions listed the guaranteed specifications can be applied. When thedevice is not operated under the listed test conditions some performance characteristics may degrade.2. Devices must be derated based on package thermal resistance at elevated temperatures.3. The most likely parametric norm represents at 25 .4. The LR1108 output must be diode-clamped to ground. If used in a dual-supply system where the regulatorload is returned to a negative supply.5. Between the V IN and V OUT terminals the output PMOS structure contains a diode. This diode is reversebiased normally. If the voltage at the output terminal is forced to be higher than the voltage at the input terminal this diode will get forward biased. This diode can withstand 1Amp of peak current and 200mA of DC current typically.6. Output voltage line regulation is the change in output voltage from the nominal value which is due to changein the input line voltage. Which is defined as the change in output voltage from the nominal value due to change in load current is output voltage load regulation. The load regulation and line regulation specification include the typical number only. But, the limits for load and line regulation are included in the output voltage tolerance specification.7. Error Flag hysteresis and threshold are specified as regulated output voltage’s percentage.8. At which the output drops 2% below the normal value dropout voltage is defined as the minimum input tooutput differential voltage. Only to output voltages of 2.5V and above dropout voltage specification applies.For output voltages below 2.5V, since the minimum input voltage is 2.5V, the drop-out voltage is nothing but the input to output differential.9. Specification has been tested at −40 ≤ T J≤ 85 cause under shutdown conditions the temperature rise ofthe device is negligible.10. The minimum operating V IN value is equal to [V OUT(NOM) + V DROPOUT] or 2.5V, just the greater.TYPICAL APPLICATION CIRCUIT。

LT1118_Ver1.1

LT1118_Ver1.1
SE G 10 SE G 9 SE G 8 SE G 7 SE G 6 SE G 5 SE G 4 SE G 3 SE G 2 SE G 1
X
XX
xxHL(低四位)
xxHU(高四位)
xxHL(低四位)
B0 B1 B2 B3 B4 B5 B6 B7 B0 B1 B2 B3
00HL 02HL 04HL 06HL 08HL 0AHL 0CHL
4 Ver1.1
地址命令设设置: MSB
B7 B6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B5 B4
无关项,填 0
LED 驱动控制专用电路
LSB
B3 B2 B1 B0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
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1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
显示地址
CLK
1 2 `````` 8
DIO
B0 B1 `````` B7
B0 B1 B2 B3

压缩机功率表

压缩机功率表

一九九八年全国压缩机产品技术资料总汇
(按到稿日期排序)
编者的话:’98北京家电国际博览会上有一个现象,引起人们的惊讶:许多零配件企业的参展热情比整机企业还高。

如江苏常恒集团,温州华威电器集团,北京恩布拉科雪花压缩机公司,天津扎努西电气机械公司。

仿佛是巧合,海外的CCE家电配件公司,法国固霸当公司,意大利芳罗伦有限公司也争相在会上亮相。

这提醒我们,家电配件产业已经壮大,专业承包市场已经成熟。

它的实力足可以影响整机产业。

因此,我们把目光投向它,期望通过我们的努力使读者了解这些企业和它们的产品。

该栏目将陆续刊出主要配件的分类资料,刊出不收取费用。

欢迎来信来电垂询。

(编辑韩彬)。

变压器型号含义大全

变压器型号含义大全

变压器型号的含义:之答禄夫天创作第一个字母:O暗示为自耦;第二个字母暗示相数:S为三相,D为单相;第三个字母:暗示冷却方式,F为油浸风冷;J油浸自冷;P强迫油循环;第四个字母:暗示绕组数,双绕组不标;S为三绕组;F为分裂绕组;第五个字母:暗示导线资料L为铝线,铜线不标;第六个字母:暗示调压方式Z有载,无载不标;数字部分:第一个暗示变压器容量,第二个暗示变压器使用电压等级.根据的SJ-560/10,应该是3相油浸自冷容量为560KVA电压为10KV 的变压器一、SII-M-220KVAS11-变压器型号,11为设计序号,节能型产品。

M-全密封。

220kVA-暗示额定容量为220千伏安叠铁心无励磁调压油浸配电变压器,220KVA二、scr9-500/10,s11-m-100/10S--三相C--浇注成型(干式变压器)9(11)--设计序号500(100)--容量(KVA)10--额定电压(KV)m--密闭r没查着三、电力变压器型号定义变压器型号通常由暗示相数、冷却方式、调压方式、绕组线芯等资料符号,以及变压器容量、额定电压、绕组连接方式组成。

请问下列电力变压器型号代号含义是什么?D S J L Z SC SG JMB YD BK(C) DDGD-单相 S-三相 J-油浸自冷 L-绕组为铝线 Z-又载调压 SC-三相环氧树脂浇注SG-三相干式自冷 JMB-局部照明变压器 YD-试验用单相变压器BF(C) -控制变压器(C为C型铁芯结构 DDG-单相干式低压大电流变压器四、SFSZ9-31500/110S:三相F:风冷S:三绕组Z:有载调压9:设计序号9型31500:容量为31500kVA110:一次侧额定电压110kV变压器型号含义干式变压器;例如,(SCB10-1000KVA/10KV/0.4KV):S的意思暗示此变压器为三相变压器,如果S换成D则暗示此变压器为单相。

C的意思暗示此变压器的绕组为树脂浇注成形固体。

LR1118L-30-AB3-B-T中文资料

LR1118L-30-AB3-B-T中文资料

UNISONIC TECHNOLOGIES CO., LTDLR1118LINEAR INTEGRATED CIRCUITLOW DROP POSITIVE VOLTAGE REGULATORSDESCRIPTIONThe UTC LR1118 is a low drop voltage regulator able to provideup to 1A of output current, available also for adjustable version (V REF =1.24V). Output consists of pnp power transistor. So that dropout voltage can be extremely low.FEATURES* 2.85V device are suitable for SCSI-2 active termination * Output current up to 1A* Adjustable version available.(V REF =1.24V) * Internal current and thermal limit* Available in±1%(at 25°C) and 2% in all temperature range*Pb-free plating product number: LR1118LORDERING INFORMATIONOrder NumberNormal Lead Free PlatingPackage① Pin Assignment ② Packing LR1118-xx-AA3-①-② LR1118L-xx-AA3-①-② SOT-223LR1118-xx-AB3-①-② LR1118L-xx-AB3-①-② SOT-89 LR1118-xx-TA3-①-② LR1118L-xx-TA3-①-② TO-220 LR1118-xx-TN3-①-② LR1118L-xx-TN3-①-② TO-252 LR1118-xx-TQ2-①-② LR1118L-xx-TQ2-①-② TO-263 LR1118-xx-TQ3-①-② LR1118L-xx-TQ3-①-② TO-263-3A: GOI B: OGIC: GIOD: IGOLR1118-xx-S08-①-② LR1118L-xx-S08-①-② SOP-8 GOOIxOOxR: Tape ReelT: TubeNote: 1. Pin assignment: I:Vin O:Vout G:GND x:NCMARKING INFORMATIONTHERMAL DATAPARAMETER SYMBOL RATINGS UNITSOT-22315SOT-89 15 SOP-8 20TO-252 8 TO-220 4 Thermal Resistance Junction-Case TO-263 θJC 4°C/WBLOCK DIAGRAMCCUTAPPLICATION CIRCUITV INV OUTABSOLUTE MAXIMUM RATINGSPARAMETER SYMBOL RATINGS UNITDC Input Voltage V IN 15 V Operating Junction Temperature T OPR 0 ~ +125 °CStorage Temperature T STG -40 ~ +150 °C Note: 1. The device may be damaged while beyond Absolute Maximum Rating.2. The device is guaranteed to meet performance specifications within 0°C~+70°C operation temperature range, and is assured by design from 0°C~+125°C.ELECTRICAL CHARACTERISTICS(Ta=25°C, refer to the test circuits, T J =-0~125°C, C O =10µF, unless otherwise specified.)For LR1118-1.8VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT1% 1.782 1.8 1.818Output Voltage V OUTV IN =V OUT +1.5V, I OUT =10mA, T J =25°C 2% 1.764 1.836V Output Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 1.764 1.8 1.836 VLine Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz~10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.32 0.65 0.48 0.88 VVThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W For LR1118-2.5VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT1% 2.475 2.5 2.525Output Voltage V OUTV IN =V OUT +1.5V, I OUT =10mA, T J =25°C 2% 2.450 2.550 V Output VoltageV OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 2.45 2.5 2.55 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output CurrentI OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz~10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.16 0.56 0.25 0. V VThermal RegulationTa=25°C, 30ms Pulse 0.01 0.10 %/WELECTRICAL CHARACTERISTICS (Cont.)For LR1118-3.0VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN =V OUT +1.5V, I OUT =10mA,T J =25°C 2.970 3.0 3.030 VOutput Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 2.940 3.0 3.060 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz ~ 10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.11 0.45 0.26 0.65 V VThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/WFor LR1118-3.3VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN =V OUT +1.5V, I OUT =10mA,T J =25°C 3.267 3.3 3.333 V Output Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 3.234 3.3 3.366 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 %Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 VQuiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz ~ 10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.11 0.45 0.26 0.65 VVThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/WFor LR1118-5.0VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN =V OUT +1.5V, I OUT =10mA,T J =25°C 4.95 5.0 5.05 V Output Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 4.90 5.0 5.10 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz ~ 10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.11 0.45 0.26 0.62 VVThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/WTYPICAL CHARACTERISTICSReference Volt a ge vs. TemperatureOutput Voltage vs. Temperautre-75Junction Temperature(℃)R e f e r e n c e V o l t a g e (V )Junction Temperature(℃)-75-50-250255075100125150175-50-250255075100125150175Maximum Power Dissipation6510546810Case Temperature (℃)P o w e r (W )24585125。

ADS1118 TI官方

ADS1118 TI官方
7.1 绝对最大额定值 ......................................................... 5 7.2 ESD 额定值 ............................................................... 5 7.3 建议的工作条件 ......................................................... 5 7.4 热性能信息 ................................................................ 5 7.5 电气特性.................................................................... 6 7.6 时序要求:串行接口.................................................. 8 7.7 开关特性:串行接口.................................................. 8 7.8 典型特性.................................................................... 9 8 参数测量信息 ......................................................... 15 8.1 噪声性能.................................................................. 15 9 详细说明................................................................. 16 9.1 概要 ......................................................................... 16 9.2 功能框图.................................................................. 16

低压电器图片之熔断器.

低压电器图片之熔断器.
熔断器RL1系列-1
RL1系列螺旋式熔断器用于沟通50Hz,额定电压 380/500V,额定电流至200A的配电线路,作输送配电设备、 电缆、导线过载和短路爱护。
熔断器RL1系列-2
RL1系列有填料封闭管式熔断器适用于沟通50Hz,额定 电压至380V,额定电流至200A的线路中,作电气设备短路或 过载爱护之用。
熔断器RL6系列
RL6系列螺旋式熔断器适用于沟通50Hz,额定电压至 500V,额定电流至63A的线路中作电气设备的短路或过载 爱护之用。
熔断器RT0系列-1
RT0系列有填料封闭管式熔断器适用于沟通50Hz,额定电 压沟通380V,额定电流至1000A的配电线路中,作过载和短 路爱护。
额定分断力量:至50kA
熔断器RT16(NT)系列-2
熔断器RT16(NT)系列)系列-1
RT18(HG30)系列有填料封闭管式圆筒形帽熔断器适用于 沟通50Hz,额定电压为380V,额定电流为63A及以下的工 业电气装置的配电设备中,作为线路过载和短路爱护之用。
熔断器RW10/RW11系列图-3
熔断器载熔件手柄NT/NH系列-1
NT/NH系列熔断器载熔件手柄适用于沟通50Hz,额 定电压至沟通1000V,额定电流至1250A的配电线路中, 作为NH00C~NH4/NT00C-NT4熔断体的装卸和更换工 具。
熔断器载熔件手柄NT/NH系列-2
熔断器RT0系列-2
熔断器RT14系列-1
RT14系列有填料封闭管式圆筒帽形熔断器适用于沟通 50Hz,额定电压为550V,额定电流为100A及以下的工业电 气装置的配电设备中,作为线路过载和短路爱护之用。
熔断器RT14系列-2
熔断器RT15系列
RT15型螺栓连接熔断器适用于额定电压至415V,额 定电流至400A的电路中,主要作为工厂企业及电厂等低压 配电系统中线路的过载和系统的短路爱护之用。

A-T Controls 31-F3 3-Way Flanged Direct Mount Ball

A-T Controls 31-F3 3-Way Flanged Direct Mount Ball

31F3Series-2R-20211210Copyright 2013 A-T Controls, Inc.PneumaticElectricSee automated data sheets for pre-sized assembliesEasy to Automate!This 3-way ball valve offers diverting and mixing flow patterns, often eliminating the need for two valves. The full port design is easily automated and is available with various seat materials. The bolts on side flanges make for easy seatchanges as necessary to accomodate your service. Available in L or T port configurations.Cincinnati, Ohio FAX (513) 247-5462********************3-Way 300# Flanged Direct Mount Ball Valvematerial, consult factoryFLOW PATTERNScustomer. Automated assemblies rotate counter-clockwise standard from the factory when energized. For L-Ports that would be L1 to L2 and T3 to T4 for T-ports. By specifying FCCW or DAR actuators, multiple flow patterns can be achieved to meet process requirements.CRN3-Way Flanged Ball Valve Full Port, L or T Option ANSI Class 300# 1-1/2” THRU 3” = Qty. 12 pcs | 4” = Qty. 18 pcs | 6” = Qty. 30 pcs^ 1-1/2” THRU 3” = 4 pcs, 4” = 6 pcs., 6” = 12 pcsTFM™ is a trademark of Dyneon™, a 3M Company.Kalrez is a registered trademark of DuPont Performance Elastomers.NOTE: At temperature, valves are limited by either the valve body/end cap pressure ratings, seat pressure ratings, or packing/stem seal/gaskets;whichever is lower.Published torques are based on full differential pressure with clean water.Consult the Application Sizing Guide forassistance with sizing actuators.Cincinnati, Ohio FAX (513) 247-5462********************Actuators are sized based on clean/clear fluid.SERIES 31-F3 3-Way 300# Flanged Direct MountFlanged 3-WayClass 300 Double Acting Assembly For operating temperatures in excess of 175° F with Buna-N seals in the actuator, an extended bracket is required. FKM seals in the actuator require an extended bracket for more than 300° F. Please consult factory for sizing information.Actuators are sized for clean liquid surface with a specific gravity of 1 and at 70° F.SAMPLE PART #31C-3X-300/2R8D-_ _ _(2) Valve Series (4) End Connection (6) Valve Size(5) Seat, Lining, & TrimMaterial(7) Actuator(8) Accessories/Options(3) Body/Ball/StemMaterial(9) Accessories(10) Special Designation Refer to Series 31 IOM for all repair kit, seat and gasket part numbers.See the last page of catalog for How To Order detail and options.See Automated Part Number Matrix for complete part number and options.31F3Series-2R-20211210Copyright 2013 A-T Controls, Inc.Flanged 3-WayCincinnati, Ohio FAX (513) 247-5462********************Specify flow pattern when ordering. See automated part number matrix for complete part number and options.SERIES 31-F3 3-Way 300# Flanged Direct MountClass 300 Spring Return Assembly Note: A number following the actuator model (Ex: 2R6S4), indicates the number of springs per side. For a standard (5 spring per side) actuator, the spring designation is omitted from the automated part number.Actuators are sized for clean liquid surface with a specific gravity of 1 and at 70° F.For operating temperatures in excess of 175° F with Buna-N seals in the actuator, an extended bracket is required. FKM seals in the actuator require an extended bracket for more than 300° F. Please consult factory for sizing information.^ Actuator sized for 400 PSIG. For higher pressure, use a 2R0S4.# Actuator sized for 400 PSIG. For higher pressure, use a 2RBSR60.SAMPLE PART #31C-3X-300/2R9S4-_ _ _(2) Valve Series (4) End Connection (6) Valve Size(5) Seat, Lining, & TrimMaterial(7) Actuator(8) Accessories/Options(3) Body/Ball/StemMaterial(9) Accessories(10) Special Designation Refer to Series 31 IOM for all repair kit, seat and gasket part numbers.See the last page of catalog for How To Order detail and options.See Automated Part Number Matrix for complete part number and options.31F3Series-2R-20211210Copyright 2013 A-T Controls, Inc.Flanged 3-WayCincinnati, Ohio FAX (513) 247-5462********************NOTE: Heater and thermostat standard (2) auxiliary switches standardOther options available - call for detailsActuators are sized based on clean/clear fluid.SERIES 31-F3 3-Way 300# Flanged Direct MountClass 300 Electric Assembly For operating temperatures in excess of 158° F with an electric actuator, an extended bracket is required. Please consult factory for sizing information.Actuators are sized for clean liquid surface with a specific gravity of 1 and at 70° F.SAMPLE PART #31C-3X-300/WEF1-_ _ _(2) Valve Series (4) End Connection (6) Valve Size(5) Seat, Lining, & TrimMaterial(7) Actuator(8) Accessories/Options(3) Body/Ball/StemMaterial(9) Accessories(10) Special Designation Refer to Series 31 IOM for all repair kit, seat and gasket part numbers.See the last page of catalog for How To Order detail and options.See Automated Part Number Matrix for complete part number and options.31F3Series-2R-20211210Copyright 2013 A-T Controls, Inc.HOW TO ORDER: Manual Valves®Chemraz® is a registered trademark of Greene, Tweed & Co.Markez® is a registered trademark of Marco Rubber & Plastic Products Inc.Perlast® is a registered trademark of Precision Polymer Engineering Limited.TFM TM is a trademark of Dyneon TM, a 3M Company.SAMPLE PART #31C-F3-0200-XXX-_ _ _(2) Valve Series (4) End Connection(5) Valve Size(6) Seat, Lining, & TrimMaterial(7) Special Designation (8) Additional Specials(9) Special Designation(3) Body/Ball/StemMaterial(10) O-RingDesignation (11) AdditionalSpecialsRefer to Series 31 IOM for all repair kit, seat and gasket part numbers.31F3Series-2R-20211210Copyright 2013 A-T Controls, Inc.SAMPLE PART #31C-3X-200/2R3D-_ _ _(2) Valve Series (4) End Connection (6) Valve Size(5) Seat, Lining, & TrimMaterial(7) Actuator(8) Accessories/Options(3) Body/Ball/StemMaterial(9) Accessories(10) Special Designation Refer to Series 31 IOM for all repair kit, seat and gasket part numbers.HOW TO ORDER: Automated Valves9955 International Blvd.Cincinnati, Ohio PHONE (513) 247-5465FAX (513) 247-5462********************31F3Series-2R-20211210Copyright 2013 A-T Controls, Inc.。

各种型号压缩机功率对照表

各种型号压缩机功率对照表
4.56
1/8
107
101
1.06
ISO15
RSIR
GQR60AG
R134a
5.99
1/6
145
129
1.12
ISO15
RSIR
GQR70AG
R134a
6.64
1/5
169
144
1.17
ISO15
RSIR
GQR80AG
R134a
8.10
1/5
195
167
1.17
ISO15
RSIR
GQR90AG
R134a
RSIR
QD57A
R12
5.7
142
137
1.05
22
RSIR
QD62A
R12
6.2
154
154
0.95
32
RSIR
QD62GA
R12
6.2
154
134
1.07
32
RSCR
QD75GA
R12
7.5
190
168
1.09
32
RSCR
QD88G
R12
8.8
220
193
1.11
32
RSCR
黄石东贝冷机集团有限公司
6.3
145
132
1.1
32
YUR
QD72
R12
7.2
165
150
1.1
32
YUR
QD80
R12
8.0
186
165
1.12
32
YUR
QD88
R12

高中数学必修一(人教版)《5.1.2 弧度制》课件

高中数学必修一(人教版)《5.1.2 弧度制》课件

≤ 2
2α00·α4+4=25,当且仅当 α=α4,即 α=2 时取等号,此时 r=22+02=5.
故当半径为 5 cm,圆心角为 2 rad 时,扇形面积最大,其最大值为 25 cm2.
【课堂思维激活】
一、综合性——强调融会贯通
1.在平面直角坐标系中,集合 S=αα=2k3π,k∈Z
的元素所表示的角的终
2.弧度数:
[微思考] 比值rl与所取的圆的半径大小是否有关? 提示:一定大小的圆心角α所对应的弧长与半径的比值是唯一确定的,与半 径大小无关.
3.角度制与弧度制的换算:
4.角度制与弧度制的比较:
用度作为单位来度 单位“°”不能 角的正负与
角度制
量角的单位制 省略
方向有关
六十进制
用弧度作为单位来 单位“rad”可以 角的正负与
【对点练清】
1.终边落在坐标轴上的角的集合是
A.{α|α=2kπ,k∈Z }
B.αα=12kπ,k∈Z
()
C.αα=kπ+π2,k∈Z
D.αα=12kπ,k∈N
解析:终边落在坐标轴上的角用“角度”表示为{α|α=90°·k,k∈Z },化成
弧度为αα=12kπ,k∈Z
.
答案:B
2. 用弧度制表示终边在图中阴影区域内角的集合(包括边界), 并判断2 012°是不是这个集合的元素. 解:因为 150°=56π, 所以终边在阴影区域内角的集合为
() B.-130π 化成度是-600° D.1π2化成度是 15°
解析:对于 A,60°=60×1π80=π3;对于 B,-103π=-130×180°=-600°;对于 C, -150°=-150×1π80=-56π;对于 D,1π2=112×180°=15°.故 C 项错误. 答案:C

IUPAC_Periodic_Table-21Jun07

IUPAC_Periodic_Table-21Jun07

Yb
ytterbium 173.04(3)
Lu
lutetium 174.967(1)
praseodymium neodymium 140.907 65(2) 144.242(3)
89
90
93
94
95
96
97
98
99
100
101
102
103
Ac
actinium [227]
Th
Pa
U
Np
neptunium [237]
Ru
ruthenium 101.07(2)
Rh
rhodium 102.905 50(2)
Pd
palladium 106.42(1)
Ag
silver 107.8682(2)
Cd
cadmium 112.411(8)
In
indium 114.818(3)
Sn
tin 118.710(7)
Sb
antimony 121.760(1)
Ds
Rg
darmstadtium roentgenium [271] [272]
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
La
lanthanum 138.905 47(7)
Ce
cerium 140.116(1)
Pr
91
Nd
92
Pm
promethium [145]
Sm
samarium 150.36(2)
53
54
Rb

人民电器 二级配电选型手册 DZ15系列塑料外壳式断路器 产品资料说明书

人民电器 二级配电选型手册 DZ15系列塑料外壳式断路器 产品资料说明书

完善的产业链和个性化解决方案,满足全球客户的不同需求!人民电器集团是人民控股集团全资公司,中国500强企业之一,始创于1986年。

人民电器集团以工业电器为核心产业,拥有浙江、上海、南昌、抚州、枣庄、合肥六大制造基地、35家全资子公司150家控股成员企业、1500多家加工协作企业和5000多家销售公司。

产品畅销全球125个国家和地区,广泛应用于浦东机场、京沪高铁、三峡水电、北京地铁、奥运场馆南水北调、青藏铁路、嫦娥探月工程、越南太安水电枢纽等国内外重大工程项目,位居世界机械企业500强前列。

2023年,经世界品牌实验室测评,品牌价值788.15亿。

公司简介COMPANY PROFILE更 安 全保障人员生命及财产安全。

更 可 靠不间断供应电力,全天随时可用。

更 高 效降低能源消耗和成本,提高生产率,缩短需求供应时间。

优化机械、工厂流程,提高使用舒适性。

更 经 济更 环 保通过可再生能源提供能量,减少二氧化碳排放量。

电力与能源电力石油石化交通工业与机器矿业/建材水利/水处理汽车数据中心IT高科技互联网商业网络银行保险金融机构电信运营楼宇办公楼宇工业建筑基础设施住宅住宅建设公共建设小区设施剩余电流保护断路器逆变器直流断路器直流塑壳断路器直流框架断路器光伏箱变直流熔断器直流浪涌保护器终端新能源HS11FH系列防护型开启式刀开关B -117HD11F系列防误型开启式刀开关B -119RDM1系列塑料外壳式断路器B -001RDM10系列塑料外壳式断路器B -010DZ20系列塑料外壳式断路器B -015DZ15系列塑料外壳式断路器B -020RDM1E系列电子式塑壳断路器B -023RDM1L系列漏电断路器B -043RDL20系列漏电断路器B -057DZL25系列漏电断路器B -064DZ15LE系列漏电断路器B -060RDL18系列漏电断路器B -068RDWQ2系列双电源自动转换开关B -080RDQ6系列双电源自动转换开关B -082RDH5D系列双电源自动转换开关B -088HD 、HS系列开启式刀开关B -101RDQH系列双电源自动转换开关B -070RDQ1系列双电源自动转换开关B -077HD11FH系列防护型开启式刀开关B -121RDH5系列隔离开关B -123HR3系列熔断器式刀开关B -130HR5系列熔断器式隔离开关B -133RDH5DS系列双电源自动转换开关B -096RDM1EL系列电子式塑壳断路器B -051HR17B系列熔断器隔离开关B -141RDT16系列有填料封闭管式刀型触头熔断器B -155HH15系列隔离开关熔断器组B -146RDH5R系列隔离开关熔断器组B -143NGT系列快速熔断器B -174RS0、RS3系列快速熔断器B -171RT0系列有填料封闭管式刀型触头熔断器B -168RT14系列有填料封闭式管圆筒形帽熔断器B -165HG30熔断器式隔离器B -163RT18系列有填料封闭管式圆筒形帽熔断器B -160HR6系列熔断器式隔离开关B -136RDHG2B系列条型熔断器式隔离开关B -139全国统一客服热线: 400 898 1166 001选型指南产品概述RDM1系列塑料外壳式断路器具有体积小、分断能力高、飞弧短、抗震动的特点, 是陆地及船舶使用的理想产品。

正泰电器常用断路器型号

正泰电器常用断路器型号
2000
DW17-2500A
2500
DW17-3200A
3200
DW17-630A
630
电动(快速)抽屉式
DW17-1000A
1000
DW17-1250A
1250
DW17-1600A
1600
DW17-2000A
2000
DW17-2500A
2500
DW17-3200A
3200
DW17-3900A
3900
50-160
DZ20LE-250/4300
100-250
DZ20LE-400/3N300
200-400
DZ20LE-630/3N300
400-630
DZ20LE系列漏电断路器
DZ267LE-32
6-32
DZ47LE系列漏电断路器
DZ47LE-32 1PN
6-32
DZ47LE-32 2P
DZ47LE-32 3P
1--5
10-32
60
DZ47-60 3P D型
1--5
10-32
40-60
DZ47-60 4P D型
1--5
10-32
40-60
DZ158系列塑料外壳式断路器
DZ158-100 1P
63-100
DZ158-100 2P
DZ158-100 3P
DZ158-100 4P
NB1系列塑料外壳式断路器
NB1-63 1P
DW16-1600A
1600
DW16-2000A
2000
DW16-2500A
2500
DW16-3200A
3200
DW16-4000A

Contrinex YBB-30 Series Safety Light Curtain说明书

Contrinex YBB-30 Series Safety Light Curtain说明书

Contrinex Safety Light Curtains – Hand-safe
Resolution Safety Level Beam Axis Interval Supply Voltage Current Consumption Outputs Output Current Output Voltage ON minimum Output Voltage OFF Leakage Current Maximum Load Inductance Response Time Sender Wavelength Operating Range Protection Class Startup Delay
YBB-30 Series Safety Light Curtain Selection Table
Part Number
Price
Description
Protective Height (Hs)
mm [in]
Housing Height (Hb)
mm [in]
Total Height (Ht)
mm [in]
41
Set $941.00
45
95
10
See above
Sender $596.00
Receiver $681.00 790 [31.10] 866 [34.09] 896 [35.28]
49
Set $1,049.00
45
100
11.6
See above
Sender $657.00
Receiver $763.00 919 [36.18] 995 [39.17] 1025 [40.35]
Dimensions

安全自动化产品数据手册:XPSATR11530C模块-急停按钮和保护防护屏-24V DC,延迟时间3

安全自动化产品数据手册:XPSATR11530C模块-急停按钮和保护防护屏-24V DC,延迟时间3

T h e i n f o r m a t i o n p r o v i d e d i n t h i s d o c u m e n t a t i o n c o n t a i n s g e n e r a l d e s c r i p t i o n s a n d /o r t e c h n i c a l c h a r a c t e r i s t i c s o f t h e p e r f o r m a n c e o f t h e p r o d u c t s c o n t a i n e d h e r e i n .T h i s d o c u m e n t a t i o n i s n o t i n t e n d e d a s a s u b s t i t u t e f o r a n d i s n o t t o b e u s e d f o r d e t e r m i n i n g s u i t a b i l i t y o r r e l i a b i l i t y o f t h e s e p r o d u c t s f o r s p e c i f i c u s e r a p p l i c a t i o n s .I t i s t h e d u t y o f a n y s u c h u s e r o r i n t e g r a t o r t o p e r f o r m t h e a p p r o p r i a t e a n d c o m p l e t e r i s k a n a l y s i s , e v a l u a t i o n a n d t e s t i n g o f t h e p r o d u c t s w i t h r e s p e c t t o t h e r e l e v a n t s p e c i f i c a p p l i c a t i o n o r u s e t h e r e o f .N e i t h e r S c h n e i d e r E l e c t r i c I n d u s t r i e s S A S n o r a n y o f i t s a f f i l i a t e s o r s u b s i d i a r i e s s h a l l b e r e s p o n s i b l e o r l i a b l e f o r m i s u s e o f t h e i n f o r m a t i o n c o n t a i n e d h e r e i n .Product data sheetCharacteristicsXPSATR11530Cmodule XPSATR - Emergency stop andprotective guard - 24V DC, time delay 30sProduct availability: Non-Stock - Not normally stocked in distribution facilityMainRange of product Preventa Safety automation Product or component typePreventa safety module Safety module name XPSATRSafety module applica-tionFor emergency stop and protective guard applica-tionsFunction of moduleEmergency stop monitoring 1-channel wiring Protective guard monitoringEmergency stop monitoring 2-channel wiringSafety levelCan reach PL e/category 4 instantaneous safety outputs EN/ISO 13849-1Can reach SILCL 3 time delay safety outputs EN/IEC 62061Safety reliability dataDC > 99 % EN/ISO 13849-1MTTFd = 85 years EN/ISO 13849-1PFHd = 2E-9 1/h EN/IEC 62061Type of startAutomatic ManualConnections - terminalsCage clamp terminals, removable terminal block, 1 x 0.2...1 x 2.5 mm² solid or flexible without cable end Cage clamp terminals, removable terminal block, 1x 0.25...1 x 2.5 mm² flexible with cable end, without bezelCage clamp terminals, removable terminal block, 1 x 0.25...1 x 2.5 mm² flexible with cable end, with bezel Cage clamp terminals, removable terminal block, 2 x 0.5...2 x 1 mm² flexible with cable end, with bezel Cage clamp terminals, removable terminal block Output typeRelay instantaneous opening, 3 NO, volt-free Relay time delay opening, 3 NO, volt-free Number of additional circuits1 NC[Us] rated supply volt-age24 V DC - 15...10 %ComplementarySynchronisation time between inputs 1 s Maximum power consumption in W 2.8 W DC Input protection type Internal, electronic Time delay range 0...30 s [Uc] control circuit voltage 24 V DCBreaking capacity 3 A 24 V DC-13) relay outputOutput thermal current6 A instantaneous and time delay outputs [Ith] conventional free air thermal current 8 AAssociated fuse rating 6 A gG instantaneous and time delay outputs EN/IEC 60947-5-1, DIN VDE 0660part 200Minimum output current 10 mA relay output Minimum output voltage17 V relay output Maximum response time on input open 20 ms [Ui] rated insulation voltage300 V[Uimp] rated impulse withstand voltage 4 kV III EN/IEC 60947-5-1, DIN VDE 0110 parts 1 & 2Local signalling5 LEDsMounting support35 mm symmetrical DIN railNet weight0.73 lb(US) (0.33 kg)EnvironmentStandards EN/IEC 60947-5-1EN/IEC 61496-1EN 62061EN/ISO 13849-1EN 60204-1EN 50156-1Product certifications CSATÜVULIP degree of protection IP20 terminals)EN/IEC 60529IP40 enclosure)EN/IEC 60529Ambient air temperature for operation-13…131 °F (-25…55 °C)Ambient air temperature for storage-13…167 °F (-25…75 °C)Ordering and shipping detailsCategory22477 - SAFETY MODULES (PREVENTA)Discount Schedule SAF2GTIN03389119061520Package weight(Lbs)0.35 kg (0.77 lb(US))Returnability NoCountry of origin DEOffer SustainabilitySustainable offer status Green Premium productCalifornia proposition 65WARNING: This product can expose you to chemicals including: Lead and leadcompounds which is known to the State of California to cause Carcinogen & Re-productive harm. For more information go to REACh Regulation REACh DeclarationREACh free of SVHC YesEU RoHS Directive Pro-active compliance (Product out of EU RoHS legal scope)EU RoHS Decla-rationToxic heavy metal free YesMercury free YesRoHS exemption information YesChina RoHS Regulation China RoHS DeclarationEnvironmental Disclosure Product Environmental ProfileCircularity Profile End Of Life InformationWEEE The product must be disposed on European Union markets following specificwaste collection and never end up in rubbish bins.Contractual warrantyWarranty18 monthsProduct data sheetXPSATR11530C Dimensions DrawingsDimensions。

RNP883T微机变压器保护测控装置技术使用说明书

RNP883T微机变压器保护测控装置技术使用说明书

11 路强电遥信开入、装置失电告警,装置事
差动速断保护、二次谐波制动的比率差动保护、CT 断线的检 故信号,装置告警信号、断路器遥控分合、
测、差动保护闭锁功能、非电量保护、二段式定时限过流保护、 分合次数统计、模拟量遥测:Ia、Ib(选配,
过负荷保护(跳闸/告警可选)、零序过流保护(跳闸/告警可 订货时须注明)、Ic、Ua、Ub、Uc、P、Q、
反时限可选、零序保护定时限、反时限可选、欠压保护、过压 分合次数统计、模拟量遥测:Ia、Ib(选配,
保护、三相不平衡保护、负序过电流保护、自投切保护、PT 断 订货时须注明)、Ic、Ua、Ub、Uc、P、Q、
线自动检测、小电流接地选线功能
COSθ、F、Ipa、Ipb、Ipc;故障滤波、事件
SOE、独立的操作回路
故信号,装置告警信号
微机变压器 综合保护 测控装置
微机电动机 差动保护装置
微机电动机 后备保护 测控装置
微机同步 电动机综合保
护测控装置
微机电动机 综合保护 测控装置
微机母线 PT 保护测控装置
差动速断、二次谐波制动的比率差动、CT 断线闭锁差动、冷却 9 路强电遥信开入、装置失电告警,装置事
故障延时出口、三段复合电压闭锁的定时限方向过流保护(Ⅰ、 故信号,装置告警信号、断路器遥控分合
测控功能配置
三段式电压闭锁的方向相间电流保护(定时限、反时限可选)、 11 路强电遥信开入、装置失电告警,装置事
三段式零序电流保护(定时限、反时限可选)、充电保护(用 故信号,装置告警信号,过流、速断、零序
于母联或分段保护)、三相一次重合闸(检同期、检无压、非 过流信号、断路器遥控分合、分合次数统计、
装置集保护、测量、控制和通讯功能于一体。既可就地安装在开关柜上,也可集中组屏 安装。既可用于直流电源操作回路,也可用于交流电源操作回路。

各个厂家电气元件字母符号含义

各个厂家电气元件字母符号含义

一、塑料断路器正泰塑壳断路器NM1-63S/3300表示什么意思N表示正泰企业代号M表示MCCB 塑料外壳式断路器1表示系列号63表示断路器壳架电流S表示分断能力3300 表示具有热、磁保护配电型(带附件)塑壳断路器附件代号含义塑料外壳式断路器以下简称MCCB,作为低压配电系统和电动机保护回路中的过载、短路保护电器,是应用极广的产品。

随着现代科技水平的不断发展,新技术、新工艺、新材料不断出现,断路器的生产工艺及各种材质不断改进,使断路器的性能有了很大的提高,除国际知名品牌,如ABB、施耐德外,国内一些企业也不甘落后,自行开发、研制或引进国外先进技术,并加以消化、吸收,也向市场推出了成熟了的产品如常熟开关厂的CMl、天津低压开关厂TM30等。

这类产品具有零飞弧、高分断、大容量、进出线方向可以互换、智能型、四极、内部附件结构模块化、安装积木化、体积小型化等特点。

实现了MCCB所需的选择性保护功能和多种辅助功能,并带有通信接口,使低压配电系统实现自动化和组网成为可能;降低了低压成套配电装置的动、热稳定性的要求;缩小了成套配电装置的体积;大大地提高了供配电系统和设备运行的可靠性。

??????然而,目前在一些电气设计方案中,对MCCB的正确合理选用并不尽人意,往往忽略了所选厂家的MCCB规格、型号、附件等其它电气参数,特别是对一些新型MCCB的电气参数理解不透,标注不全、应用类别、使用场合及用途等考虑不周。

选用了不合适的MCCB,导致成套厂订货困难,保护的选择性变差,灵敏性,合理性不符合设计规范要求,不但使MCCB没有物尽所用,反而造成了浪费,降低了配电系统的可靠性,影响了工矿企业的生产和人们的生活。

为此,本文结合有关MC—CB的常用参数和国家标准谈谈自己对MCCB正确选用的一些看法。

2.断路器的常用基本相关符号其合义及相互之间的关系??????Inm——断路器壳架等级电流A,它所指的含义是本断路器内所能安装的最大开关及脱扣器电流值。

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UNISONIC TECHNOLOGIES CO., LTDLR1118LINEAR INTEGRATED CIRCUITLOW DROP POSITIVE VOLTAGE REGULATORSDESCRIPTIONThe UTC LR1118 is a low drop voltage regulator able to provideup to 1A of output current, available also for adjustable version (V REF =1.24V). Output consists of pnp power transistor. So that dropout voltage can be extremely low.FEATURES* 2.85V device are suitable for SCSI-2 active termination * Output current up to 1A* Adjustable version available.(V REF =1.24V) * Internal current and thermal limit* Available in±1%(at 25°C) and 2% in all temperature range*Pb-free plating product number: LR1118LORDERING INFORMATIONOrder NumberNormal Lead Free PlatingPackage① Pin Assignment ② Packing LR1118-xx-AA3-①-② LR1118L-xx-AA3-①-② SOT-223LR1118-xx-AB3-①-② LR1118L-xx-AB3-①-② SOT-89 LR1118-xx-TA3-①-② LR1118L-xx-TA3-①-② TO-220 LR1118-xx-TN3-①-② LR1118L-xx-TN3-①-② TO-252 LR1118-xx-TQ2-①-② LR1118L-xx-TQ2-①-② TO-263 LR1118-xx-TQ3-①-② LR1118L-xx-TQ3-①-② TO-263-3A: GOI B: OGIC: GIOD: IGOLR1118-xx-S08-①-② LR1118L-xx-S08-①-② SOP-8 GOOIxOOxR: Tape ReelT: TubeNote: 1. Pin assignment: I:Vin O:Vout G:GND x:NCMARKING INFORMATIONTHERMAL DATAPARAMETER SYMBOL RATINGS UNITSOT-22315SOT-89 15 SOP-8 20TO-252 8 TO-220 4 Thermal Resistance Junction-Case TO-263 θJC 4°C/WBLOCK DIAGRAMCCUTAPPLICATION CIRCUITV INV OUTABSOLUTE MAXIMUM RATINGSPARAMETER SYMBOL RATINGS UNITDC Input Voltage V IN 15 V Operating Junction Temperature T OPR 0 ~ +125 °CStorage Temperature T STG -40 ~ +150 °C Note: 1. The device may be damaged while beyond Absolute Maximum Rating.2. The device is guaranteed to meet performance specifications within 0°C~+70°C operation temperature range, and is assured by design from 0°C~+125°C.ELECTRICAL CHARACTERISTICS(Ta=25°C, refer to the test circuits, T J =-0~125°C, C O =10µF, unless otherwise specified.)For LR1118-1.8VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT1% 1.782 1.8 1.818Output Voltage V OUTV IN =V OUT +1.5V, I OUT =10mA, T J =25°C 2% 1.764 1.836V Output Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 1.764 1.8 1.836 VLine Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz~10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.32 0.65 0.48 0.88 VVThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/W For LR1118-2.5VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT1% 2.475 2.5 2.525Output Voltage V OUTV IN =V OUT +1.5V, I OUT =10mA, T J =25°C 2% 2.450 2.550 V Output VoltageV OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 2.45 2.5 2.55 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output CurrentI OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz~10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.16 0.56 0.25 0. V VThermal RegulationTa=25°C, 30ms Pulse 0.01 0.10 %/WELECTRICAL CHARACTERISTICS (Cont.)For LR1118-3.0VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN =V OUT +1.5V, I OUT =10mA,T J =25°C 2.970 3.0 3.030 VOutput Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 2.940 3.0 3.060 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz ~ 10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.11 0.45 0.26 0.65 V VThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/WFor LR1118-3.3VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN =V OUT +1.5V, I OUT =10mA,T J =25°C 3.267 3.3 3.333 V Output Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 3.234 3.3 3.366 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 %Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 VQuiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz ~ 10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.11 0.45 0.26 0.65 VVThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/WFor LR1118-5.0VPARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN =V OUT +1.5V, I OUT =10mA,T J =25°C 4.95 5.0 5.05 V Output Voltage V OUT V IN =(V OUT +2V)~15V, I OUT =0 to 1A 4.90 5.0 5.10 V Line Regulation ∆V OUT V IN =(V OUT +2V)~15V, I OUT =0A 0.1 0.6 % Load Regulation ∆V OUT V IN =V OUT +2V, I OUT =0 to 1A 2 3 % Temperature Stability ∆V OUT 0.5 % Long Term Stability ∆V OUT 1000 hrs, T J =125°C 0.3 % Operating Input Voltage V IN I OUT =100mA 15 V Quiescent Current I D V IN ≤10V 5 10 mA Output Current I OUT V IN =V OUT +4.5V, T J =25°C 800 950 1200 mA Output Noise Voltage eN B=10Hz ~ 10KHz, T J =25°C 100 µVSupply Voltage Rejection SVRI OUT =40mA, f=120Hz, T J =25°CV IN =V OUT +2.5V, V RIPPLE =1Vpp 60 75 dB Dropout Voltage V DI OUT = 100mA I OUT = 1A 0.11 0.45 0.26 0.62 VVThermal Regulation Ta=25°C, 30ms Pulse 0.01 0.10 %/WTYPICAL CHARACTERISTICSReference Volt a ge vs. TemperatureOutput Voltage vs. Temperautre-75Junction Temperature(℃)R e f e r e n c e V o l t a g e (V )Junction Temperature(℃)-75-50-250255075100125150175-50-250255075100125150175Maximum Power Dissipation6510546810Case Temperature (℃)P o w e r (W )24585125。

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