描述
1.變壓器過負(fù)荷。
2.變壓器內(nèi)部故障。例如:繞組匝間短路、層間短路、繞組對周圍放電、內(nèi)部引線接頭發(fā)熱;鐵芯多點接地使渦流增大而引起的發(fā)熱;零序不平衡電流等漏磁通形成回路而引起的發(fā)熱等。發(fā)生這些情況,還將伴隨著瓦斯保護(hù)和差動保護(hù)動作,故障嚴(yán)重時還可能使防爆管(或壓力釋放閥)噴油等原因。
3.冷卻裝置運行不正?;虬l(fā)生故障。如潛油泵停轉(zhuǎn)、風(fēng)扇損壞、散熱管道積垢冷卻效果不良、散熱器閥門未打開、散熱器管道堵塞等原因。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計算機控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
Parker Convum MPS-R3F5-NC Stainless Pressure Sensor New
Convum CVA-DN/CVA-15HS 24BL/C-0054-CVA
Myotoku Convum F-1 Vacuum Ejector C-21-316
Convum VF-3
Convum CVA-15HR-B Vacuum Release Solenoid Valve NNB
CONVUM A QUICK RELEASE VALVE CVA-D NO.EKT(15-19)
Convum MPS-V9M-NG-YOK Sensor
Convum MC2S07HS-ZM24B5?R-8Y19 Valve w/A00SC23-Z06-028
Convum MVS-030-AB Vacuum Sensor NPN MVS030AB NIB
Parker Convum MVS-030ABP PNP Sensor MVS030ABP NIB
Convum VF-6 Pneumatic Port Vacuum Filter NIB
Convum VF-3 vacuum filter assembly 1/8″w/element
Control Techniques Digitax Servo Drive
Control Techniques NTM-330-CONS-W024|Servo Motor
CONTROL TECHNIQUES UNI1403 3HP 460VAC DRIVE**NIB**
UD71 Serial Module for Control Techniques Unidrive
CONTROL TECHNIQUES EI-202-00-000 USPP EI20200000
CONTROL TECHNIQUES SP1403 AC SERVO DRIVE 6.8A**XLNT**
AVON ADVANCED TECHNIQUES FRIZZ CONTROL LOTUS SHIELD
Control Techniques Commander AC Drive,SKA-1200075
Avon-ADV TECHNIQUES-LOTUS SHIELD FRIZZ CONTROL-NIP
CONTROL TECHNIQUES DXE-4120W SERVO MOTOR DXE4120W
Control Techniques Commander SE33400550 AC Drive
Control Techniques FXM 5 Field Controller
CONTROL TECHNIQUES MAESTRO 140X8/16 SERVO DRIVE
Control Techniques DINVERTER Drive
One-day shipping available
Avon-ADV TECHNIQUES-LOTUS SHIELD FRIZZ CONTROL-NIP
CONTROL TECHNIQUES UNI1401 UNIDRIVE AC DRIVE***XLNT***
Control Techniques Commander SE AC Drive SE2D200075 1HP
CONTROL TECHNIQUES 140X8/16 SERVO DRIVE
CONTROL TECHNIQUES PC BOARD MENTOR II MDA-3 7004-0086
2 control techniques controllers and exlar motors used
Emerson/Control Techniques En-214 En214 Servo Drive
One-day shipping available
CONTROL TECHNIQUES SP1401 UNIDRIVE 4.1A 380/480V*XLNT*
Avon Advance Techniques Frizz Control Hair Care Regimen
Seen On TV!Lotus Shield Anti-Frizz Treatment
CONTROL TECHNIQUES DBE1100S AC SERVO DRIVE 11KW*XLNT*
AVON ADVANCE TECHNIQUES FRIZZ CONTROL TREATMENT
CONTROL TECHNIQUES POWER BOARD MDA75 MDA-75 9300-5322
CONTROL TECHNIQUES CDVE 75 HP COMMANDER DRIVE,USED
CONTROL TECHNIQUES COMMANDER CD550K
Control Techniques 9600-6400 Dominax DD400 5HP Drive
Advance Techniques Frizz Control Lotus Shield
EMERSON CONTROL TECHNIQUES MD-420-00-000&MP1250 PS
AUTOTECH EZ-S6M-R TOUCH SCREEN/AB FLEX 22A-D2P3N104
CONTROL TECHNIQUES SECO INTERFACE BOARD MDA-2 9300-5321
CLASSROOM DISCIPLINE AND CONTROL-101 Techniques
CONTROL TECHNIQUES COMMANDER SE SE11200037 AC DRIVE
CONTROL TECHNIQUES,COMMANDER SE AC DRIVE,SE2D200075
Avon-ADV TECHNIQUES-LOTUS SHIELD FRIZZ CONTROL-NIP
CONTROL TECHNIQUES SECO BOARD MENTOR II MDA-1 7004-0043
AVON ADVANCE TECHNIQUES FRIZZ CONTROL SHIELD-LAST 1
CONTROL TECHNIQUES DYNAMIC BRAKING UNIT***NIB***
Control Techniques Focus 3 Signal Isolator Board NIB
Control Techniques MENTOR II DC Drive 1105 HP M1850-14
CONTROL TECHNIQUES V75 ICD FLUX VECTOR DRIVE,REFURBISH
CONTROL TECHNIQUES PWR SUPPLY AND DRIVE MODULE NICE M/O
NIB~Avon Advance Techniques FRIZZ CONTROL Lotus Shield