140DAO84220
REFURBISHED WESTINGHOUSE PB32500 CIRCUIT BREAKER 2500AINDRAMAT RAC 3.5-150-460-A00-W1-220 MAIN SPINDLE DRIVE
RAC3.5
NEW Mectron Engineering MI-9000 Magnetic Imagery Unit
Bosch PE 100 Analog Press Controller 0 608 830 093
Power Ten P63C-20500K 10KW Power Supply 20V/500A
FANUC A20B-1003-0010/19B
Allen-Bradley 1336T-R100-AN-GT0 DC Input 100 HP Drive
Refurbished Allen-Bradley 5150-RS/MRS
INDRAMAT DKS1.1-W100A-DL01-00
Allen-Bradley 5130-RM/MRM2
Allen-Bradley 5250-LP/MLP2
INDRAMAT DKS1.1-W030B-DL01-00
(680) NEW OKIDATA 04231554AA
(541) NEW OKIDATA 04837608AA
(374) NEW STMicroelectronics ST92F120V1Q7C Chips
Refurbished Moore Products 15737-69 BCC ICC Module
NEW AccuRay 083156-002
Bosch LTE 45 Servo Amplifier 0 608 750 041
Allen-Bradley 7300 UPJ CNC Circuit Board
Technifor UC201/f
Refurbished Allen-Bradley 2705-P11J2/E
Allen-Bradley 5150-RS/MRS
NEW Reliance Electric 57C492 Battery Backup 803623-R
Allen-Bradley 1394-SJT05-C/B 5 KW Servo Controller
Bailey Controls IMAMM03 Infi 90 Analog Master Module
NEW Modicon S42K-AB0-P010 Servo Motor W/Brake CGC12
FANUC A16B-2200-0390/11B SERIAL 1/4 AXES BOARD
Acuity ITRAN MVP-2000T
Mectron Engineering MI-9000
Refurbished Moore Products 15838-30 MPU #3 Module
New GE Drive IC3600 TILA1 Module IC3600TILA1
New GE Speedtronics IC3600 LIBB1 Board IC3600LIBB1
New GE Speedtronics IC3600 KRSU1 Board IC3600KRSU1
New GE Speedtronics IC3600 TPSA1 Board IC3600TPSA1
Allen-Bradley 7300-UAF-2 CNC
Allen-Bradley 7300-UCE-3 CNC
Allen-Bradley 7300-UPW CNC
Telesis TMC300 Pinstamp
NEW Modicon S42K-AB0-P010 Servo Motor W/Brake CGC12
New GE Drive IC3600 AMLG1 Board IC3600AMLG1
New GE Drive IC3600 KRST1 Module IC3600KRST1
Refurbished Mazak Mazatrol Operator Panel KS-YZ402B-2
IRCON MR-60F2-07F Mirage Controller/IR Thermometer
Refurbished Mitsubishi Mazak PD21B Power Supply
Allen-Bradley 7300-UCE-3 CNC Control Board 140DAO84220
140DAO84220
1.首先計(jì)算各分支電流的值
①純電阻性負(fù)載,如燈泡,電熱器等用注明功率直接除以電壓即得,公式I=功率/220v;例如20w的燈泡,分支電流I=20W/220=0.09A。電風(fēng)扇、電熨斗、電熱毯、電熱水器、電暖器、電飯鍋、電炒鍋、吸塵器、空調(diào)等為阻性負(fù)載。
②感性負(fù)載,如熒光燈,電視機(jī),洗衣機(jī),等計(jì)算稍微復(fù)雜,要考慮消耗功率,具體計(jì)算還要考慮功率因數(shù)等,為便于估算,筆者給出一個(gè)簡單的計(jì)算方法,即一般感性負(fù)載,根據(jù)其注明負(fù)載計(jì)算出來的功率在翻一倍即可,例如注明20W的日光燈的分支電流I=20W/220v=0.09A,翻倍為0.09A*2=0.18A(比精確計(jì)算值0.15A,多0.03A)
2.總負(fù)荷電流即為各分支電流之和;知道了分支電流和總電流,就可以選擇分支空氣開關(guān)及總閘空氣開關(guān)、總保險(xiǎn)絲,總電表以及各支路電線的規(guī)格,或者驗(yàn)算已設(shè)計(jì)的這些電氣部件的規(guī)格是否符合安全要求;
●業(yè)從事(DCS系統(tǒng))(機(jī)器人系統(tǒng))(大型伺服控制系統(tǒng))模塊 備件銷售廈門[泰尼電氣有
廈門泰尼備件解決方案銷售中心:
轉(zhuǎn)子流量計(jì)在工業(yè)生產(chǎn)過程中應(yīng)用較廣,可以測量多種介質(zhì)的流量,特別適用于中小管徑和低雷諾數(shù)的中小流量測量。轉(zhuǎn)子流量計(jì)結(jié)構(gòu)簡單,靈敏度高,量程比寬(10:1),壓力損失小且恒定,對直管段的要求不高,刻度近似線性,價(jià)格便宜,使用維護(hù)簡便。但儀表受被測介質(zhì)密度、粘度、溫度、壓力等因素的影響,其精度一般在1.5級(jí)左右。