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A20B-2002-0310
A20B-2002-0310目前的电梯绝大多数为变频调速电梯,而电梯应急电源包含有整流、逆变、电池组及检测等几个组成部分,从结构上看二者都具有整流、逆变等环节,浪费设备资源。对VVVF电梯的应急电源进行了优化设计,优化设计后的体积和质量会有大幅度减小,且增加了避免空梯施救和施救时系统冲击的功能,使应急电源的性能价格比有大幅度提高。在无机房电梯日趋增加的今天,其推广和应用前景看好。
A20B-2002-0310目前的电梯绝大多数为变频调速电梯,而电梯应急电源包含有整流、逆变、电池组及检测等几个组成部分,从结构上看二者都具有整流、逆变等环节,浪费设备资源。对VVVF电梯的应急电源进行了优化设计,优化设计后的体积和质量会有大幅度减小,且增加了避免空梯施救和施救时系统冲击的功能,使应急电源的性能价格比有大幅度提高。在无机房电梯日趋增加的今天,其推广和应用前景看好。
除鳞 水压 控制方式
摘要：为了解决太钢热连轧带钢高压除鳞水压控制中存在的问题，通过研究生产工艺，改变了除鳞泵最小流量阀和蓄 势器最低液面阀控制方式，即最小流量阀采用独特的平衡室温度控制方式，最低液面阀采用独特的蓄势器水罐液位、气罐 压力和总管出水压力联锁控制方式。实践表明，除鳞水压控制方式的改进解决了除鳞系统管网出水压力波动较大的问 题，增强了系统除鳞能力和稳定性，从而提高了热连轧带钢工艺表面除鳞质量。A20B-2002-0310
多功能天车 电气系统 PLC
摘要：阐述了铝电解多功能天车的电气控制系统的组成，针对多功能天车断线故障、失控、吊线盒和司机室回转电机存在的问题进行电气系统改造。彻底消除了事故隐患，提高系统的可靠性，保证了天车的安全平稳运行。
包头铝业股份公司电解四公司选用200KA大型预焙电解槽，设计年产量为10万t，前4.8万t于2002年7月投入运行。电解车间分南、北两个厂房，共4台高位电解多功能天车。其中两台大连起重矿山机械有限公司设计、制造的多功能天车，在电控系统中采用了PLC控制、交流变频器等先进技术，实现了天车的各种功能自动控制，但在运行中也出现了一些问题如天车失控，天车电气系统故障率高等,影响电解生产的正常进行。电解四公司技术人员针对存在的问题进行了改造。
一、PLC系统组成
多功能天车的原PLC控制系统选用美国AB公司的SLC500系列，系统由一个主站和一个从站组成，其中主站设在主梁的A1柜内，从站在工具车的A4柜内。主站和从站之间采用DH+通信电缆联接（双绞两芯屏蔽电缆），由主站的SN扫描模块与从站的ASB适配器模块之间进行通信。主站和从站构成分别见表1、表2。通信电缆为1784-PCM6，地址分配见表3。
艾默生 EC20 PLCA20B-2002-0310
NEW NEW IN BOX LOT OF 9 PHILLIPS PL-S 13 WATT 41 LAMP LIGHT BULB (HH5)
摘要：对原系统进行了分析，提出改进方案，并对方案内容进行详细说明。
桥式起重机(天车)是一种用来起吊、放下和搬运重物、并使重物在一定距离内水平移动的起重、搬运设备，在生产过程中有着重要应用。5吨桥式起重机，原设备电气驱动系统分为起重机升降、小车、大车三部份。其中起重机升降由一台13kW的绕线式异步电动机驱动，大车由两台4 kW绕线式异步电动机、小车由一台2.5 kW绕线式异步电动机驱动。在原传动控制中，采用转子串接电阻的调速方式.由于工作环境差,粉尘和有害气体对电机的集电环、电刷和接触器腐蚀性大，加上工作任务重,实际过载率高,由于冲击电流偏大,容易造成电动机触头烧损、电刷冒火、电动机及转子所串电阻烧损和断裂等故障, 影响现场生产和安全,工人维修量和产生的维修费用也很高审核编辑（）
USED**WESTINGHO?USE TYPE "WBA" PANEL BOARD/CIRCUIT BREAKER 225A 120/208V 3PH (51)
NEW NO BOX L6-15R LOCKING FLOOR RECEPTACLE OUTLET 15A 250V (181-1)
NEW** A LOT OF 18 SYLVANIA OCTRON FO17/735 17W MEDIUM BI PIN LAMPS 3500 K (A2)
1 USED GENERAL ELECTRIC 9T21B1006G2 SINGLE PHASE TRANSFORMER 10KVA 60HZ (24)
NEW NO BOX BALDWIN HYDRAULIC FILTER B35-S IN83-261 (NN4)
USED* WESTINGHOUSE RHD36SNF FUSIBLE DISCONNECT SAFETY SWITCH 400A 600VAC 3P (72)
NIB* FERRAZ SHAWMUT A6D400R AMP-TRAP 2000 DUAL ELEMENT 400A TIME DELAY FUSE (R1)
NEW LUMATESTER HPS TROUBLE SHOOTING KIT, 50-400 WATT MOGUL STYLE (HH4)
NEW LOT OF 3 GENERAL ELECTRIC R40 GE 250 WATT 250W INFRARED HEAT LAMP R-40 (YY2)
NEW IN BOX MALLORY POTENTIOMETER M70MPK (DR1G-2)
BECKMAN MULTIPOINT SELECTOR NEW ? 405A-10 (E4-1)
NEW IN BOX GE MULTI-MIRRO PROJECTION LAMP EPT 10.8V 42W (193-2)
USED ONAN LTEU 30L 107H GENERATOR AUTOMATIC TRANSFER SWITCH 30 AMP 120VAC (40)
NEW** A LOT OF 4 WATLOW 240V VOLT 375W WATT FIREROD HEATER 8447 N3A37C (F5-2)
USED GOOD* CROUSEC - HINDS EFDC2437 S769 M88 HAZARDOUS PUSH BUTTON SWITCH (F5)
NEW LIGHT MODULE CAT 800-PT16 SER. T 800PT16 (268-3)
NEW? ZLINX WIRELESS MODBUS I/O EXPANSION MODULE ZZ-8DO-T (B3-1)
NEW NIB DWYER DIFFERENTIAL163?8-10 PRESSURE SWITCH MAX PRESS. 10 PSI (B5)
NEW TREND THERMOMETER 250 DEGREE F/ 120 DEGREES C. (RR4)
A20B-2002-0310
A20B-2002-0310
A20B-2002-0310
A20B-2002-0310
NEW CUTLER HAMMER 200A PANEL 120/240VAC 36x20A BREAKERS (67)
NEW NIB KILLARK FXB-5 SZ 3/4" FEED THROUGH SPLICE BOX SEAL X / CONTROLS (MM4)
NEW IN BOX MALLORY POTENTIOMETER M75MPK (DR1G-2)
New, Gould Shawmut A60X200 Fuse lot of 3 Type 4 200amps 600volts or less (E5-1)
LGF MOISTURE REGISTER MOISTURE METER W/CARRYING CASE T8 USED LOT 2(P7)
NEW NIB 12 GOULD MODICON M84 FANNING STRIP NEW MA-0212-001 (H5)
KILLARK OUTLET BOX FOR HAZARDOUS LOCATIONS GRB NEW NO BOX (MM4)
NEW TYCO LEAK DET AND LOC POWER SUPPLY BOARD MT200-PS 3201-0200 (E5-2)
USED GOOD SQUARE D HU100-3MC5 MOTOR CONTROL STARTER BUCKET NEMA SIZE 1 100A (57)
Bailey Controls Company 6636939F1 Board With Attached Screen (bin87)
NEW THERMAL ZONE MOTOR RUN CAPACITOR 370X5 370 VAC 5 MFD 12005TZ 12005 (A7-4)
NEW PYCO RTD TRANSMITTER 23-7514 (E7-3)
NIB SIEMENS FP32C LOAD CENTER 30A 1PH 1.5-3 HP FUSE PULLOUT BASE SW-062 (YY2)
NEW BURNS 14372 THERMOCOUPLE 200A10A5A085 EXPLOSION PROOF NEMA 4X (FF1)
NIB** A LOT OF 5 WESTINGHOUSE CLEAR T-8 130V LIGHT BULBS (B2-1)
20 SETS NEW SIEBE COLMAN 1139 THERMOSTAT INSERT KIT FOR TK-18XX & TK-17XX (B8-1)
LOT OF 3 ALLEN BRADLEY 193-ER1D SER D 120~18VA IEC 947-4 (D4-6)
FLUX GERATE BARRELL PUMP WITH ELECTRIC MOTOR F448 NO. 450 26501 120V NEW (ZZ3)
NEW GE CAPACITOR 97F9683 35UF 440 VAC 50/60 HZ P291-3504 (C3-2)
NEW IN BOX** GENERAL ELECTRIC BIAX ECO LAMP 9W 2 PIN G23-2 (B2-3)
NIB** SQUARE D - TELEMECANIQUE VW3-A66712 DYNAMIC BRAKE RESISTOR 460V 1.45A (F4)
NIB Cutler Hammer DG221NGB General Duty Safety Switch Ser. B 30A 240VAC (C4)
LOT OF 5 NEW BINARY DECODERS MC1455B CP QQ8150 (223-2)
NEW GENERAL ELECTRIC INDICATING LAMP 6105700G21/6105?700G3 LOT OF 3 (O4)
Bailey Controls 6636939F1 Board With Screen- hd44100h (bin87)
NEW WARD LEONARD 61S0000705 TYPE S 80OHMS 2.0-2.0AMPS 230MAX VOLTS (VV4)
NEW* EGS HEVI-DUTY ES5H15S 15KVA GEN. PURPOSE TRANSFORMER 120/240V 1PH (27)
LOT OF 18 NEW IN BOX OHMITE WIREWOUND RESISTORSB20J10?R 20W 10 OHMS (O1-2)
WARD LEONARD 61S0000705 TYPE S 80OHMS 2.0-2.0AMPS 230MAX VOLTS (U1)
NIB** GE MINI A-LINE LIGHT BULB 15W 825 LUMENS 10,000 LIFE HOURS (B2-3)
LOT OF 10 NEW HARRIS8 PIN VOLTAGE DETECTOR 76650 H9926 ICL7665SCPA (DR1H-3)
NEW NO BOX IN PLASTIC BAG BANNER MAXI-AMP CL3RA 50/60 HZ 4VA (D4-2)
AC TECH VARIABLE SPEED AC MOTOR DRIVE 15HP QC SERIES Q34015HB USED (RH)
USED** GOOD LEVEX L450-3 ELECTRIC VIBRATOR .85A AMP 480V VOLT 3OHM (N6)
LOT OF 8 NEW CHICAGO MINIATURE GREEN INDICATOR 1090QC5 IDI 28V 1W (WL12-1)
LOT OF 18 NEW CHICAGO MINIATURE RED INDICATOR 1090QC1 IDI 12V 1W (WL12-1)
GOOD USED FANUC IC600PX503B MULTI LOOP CONTROLLER / MODULE PROLOOP (B5)
NEW NIB HONEYWELL DYNAMIC SELF CHECK UV FLAME DETECTOR 1" FLANGE SEALED (B5)
NEW IN BOX SCHNEIDALLEN BRADLEY AC POWER SUPPLY MODULE 1771-P3 (E2)
NEW NO BOX RAYCHEM H908 POWER CONNECTION WITH 30399 PLUG CORD SET (BIN99)
LOT OF 3 NEW IN PKG ALLEN BRADLEY 60-1785 SER B GENERAL PURPOSE MOUNTING (H3-2)
NEW LOT OF 7000+/- KYOCERA CERAMIC CAPACITORS SA101C102KAA 1000PF (N3)
LOT OF 2 NEW LEVITON 8756-J INCANDESCENT LAMP HOLDERS (323)
NEW IN BOX PHILLIPS ACCENT 1200 HALOGEN BULB 12V EYF 75W GX5.3 (193-2)
USED ALLEN BRADLEY 193-BSB 80 FUSIBLE COMBINATION STARTER 8.0 AMP 460 VOLT (71)
USED SQUARE D FAP3600311M MCC BUCKET MODEL 5 CLASS 8536 3 AMP 480VAC (3)
LUMARK COOPER MHSS-M-400-MT-Q INDOOR HIGH BAY METAL HALIDE LIGHT FIXTURE (J2)
LOT OF 25 New STMicroelectron?ics ULQ2003A - 6B Transistor Array ULQ2003A-6B (A6)
GOOD USED FANUC IC600PX503A MULTI LOOP CONTROLLER / MODULE PROLOOP (B5)
NEW IN BOX SET OF 3 EATON CUTLER HAMMER H2022-3 HEATER PACK 62.2-84.6 A (D4-1)
NEW NO BOX CRYDOM F1892D1200 POWER DIODE (DR2B-1)
USED ACME T-3-53312-3S LARGE GENERAL PURPOSE TRANSFORMER 30KVA 60HZ 3PH (96)
NEW AMERITHERM NOVA STAR 3 300-0348-M 440V 6.5A 3PH 50/60HZ (74)
BALSER TRANSFORMER DIFFERENTIAL BE1-87T C1E-A1J-D0N0F (GG5)
GENERAL ELECTRIC A-C AMMETER 40-70 CY 8AB 18A3AR1 WITH MANUAL (YY1)
NEW TYCO TTDM LEAK DETECTION AND LOCATION MODULE POWER SUPPLY BOARD (E5-2)
LOT OF 1000 LED GREEN 5MM NON-DIFFUS 105-00010-001 231-005-02 LTL-4234-002 (321)
LOT OF 50 NIP PANASONIC CAPACITOR ECQ-E 400 VDC 224K CAPACITORS (111-1)
GOOD MTE CORP RL-01803 3 PH REACTOR TRANSFORMER 18A 600V 2.50mH (Z1)
NEW NIB WESTINGHOUSE AMMETER KA-241 0-3000 A (WL28)
A20B-2002-0310
A20B-2002-0310
NEW! RELIANCE ELECTRIC MOTOR P56X1526H 1.6/.8 AMPS 230/460V 1/2H 1725RPM (T2)
NIB**A.O. SMITH MAGNETEK MOTOR DE3D295N .25A AMP 230V VOLTS 1/4 HP 790/950 (H7)
USED FUJI ELECTRIC TYPE VKP061A ELECTRIC OIL PUMP 100W 2P 3 PHASE (XX4)
NEW IN BOX MCQUAY KMP WORLD SERIES FILTER DRIER WLD 032S 500 PSIG (C3-2)
AC TECH VARIABLE SPEED AC MOTOR DRIVE 20HP QC SERIES Q34020HB USED (RH)
WESTCODE SCR DIODE 1926A50H12B 8408 (E3-2)
NEW ALLEN BRADLEY MICROLOGIX 1000 PROGRAMMABLE CONTROLLER MURR 857814 (WW6)
NEW LOT OF 5000+/- SURGE MULTILAYER CERAMIC CAPACITORS SDAM200C330K17T (N3)
NEW** NORTEL MERIDIAN NTCK90AA CMCC CONTROLLER CARD (J6)
USED/GOOD* SQUARE D NEMA SIZE 1 HU1003MC5 10A MOTOR CONTROL STARTER BUCKET (57)
NEW IN BOX SQUARE D 5NR-151 CURRENT TRANSFORMER 150:5 (D3-4)
SIEMENS CURRENT TRANSFORMER 3000:5 61-300-066-302 10KV (EE6)
NEW IN BOX RS ELY DIRECT-AIR DIRECTIONAL SPOT DIFFUSER NEW (J7)
DAIFUKU C-BOX 125 LOCAL INTELLIGENT NETWORK CONTROL SYS (I7)
GOOD* ALLEN BRADLEY SIZE 2 COMBINATION STARTER FUSED 509-C0D 45 AMP 600 VAC (69)
NEW NIB GENIUS GE FANUC IC660TBD110A MODULE / BRICK INPUT BLOCK (B5)
