ABB PFXA401F
ABB 电机,俗称“马达”,是指依据电磁感应定律实现电能的转换或传递的一种电磁装置。电动机也称(俗称马达),在电路中用字母“M”(旧标准用“D”)表示。它的主要作用是产生驱动转矩,作为用电器或各种机械的动力源,发电机在电路中用字母“G”表示。
ABB PFXA401F变压器是一种静止电机,它应用电磁感应原理,可将一种电压的电能转换为另一种电压的电能(一般是交流电)。从电力的生产、输送、分配到各用电户,采用着各式各样的变压器。首先,从电力系统来讲,变压器就是一种主要设备。我们知道,要将大功率的电能输送到很远的地方去,再用较低的电压即相应的大电流来传输是不可能的。这是由于: 一方面大电流将在输电线上引起大的功率损耗 另一方面,大电流还将在输电线上引起较大的电压降落,致使电能根本送不出去。ABB PFXA401F为此,需要变压器来将发电机的端电压升高,相应的电流便可减小 变压器的简介 变压器的功能主要有: 电压变换,电流变换,阻抗变换;隔离;稳压《磁饱和变压器);自变压器;高压变压器(干式和油漫式) 等,变压器常用的铁芯形状一般有E 型和C型铁芯,XED 型,ED 型 CD 型。 变压器按用途可以分为 配电变压器、电力变压器、 全密封变压器、组合式变压器、干式变压器、 单相变压器、电炉变压器、整流变压器、电抗器、抗干扰变压器、防雷变压器、箱式变电器 试验变压器 转角变压器 大电流变压器 励磁变压器。变压器的最基本型式,包括两组绕有导线之线圈,并且彼此以电感方式称合一起。当一交流电流(具有某一已知频率)流于其中之一组线圈时,于另一组线圈中将感应出具有相同频率之交流电压,而感应的电压大小取决于两线圈耦合及磁交链之程度一般指连接交流电源的线圈称之为[一次线圈](Primary coi1);而跨于此线圈的电压称之为[一次电压.]。在二次线圈的感应电压可能大于或小于一次电压,是由一次线圈与二次线圈间的[匝数比]所决定的。因此,变压器区分为升压与降压变压器两种。 大部份的变压器均有固定的铁芯,其上绕有一次与二次的线圈。基于铁材的高导磁性,大部份磁通量局限在铁芯里,因此,两组线圈藉此可以获得相当高程度之磁耦合。在一些变压器中,线圈与铁芯二者间紧密地结合,其一次与二次电压的比值几乎与二者之线圈匝数比相同。因此,变压器之匝数比,一般可作为变压器升压或降压的参考指标。由于此项升压与降压的功能,使得变压器已成为现代化电力系统之一重要附属物,提升输电电压使得长途输送电力更为经济至于降压变压器,它使得电力运用方面更加多元化,可以这样说,没有变压器,现代工业实无法达到目前发展的现况。 电子变压器除了体积较小外,在电力变压器与电子变压器二者之间,并没有明确的分界线。一般提供 60Hz 电力网络之电源均非常庞大,它可能是涵盖有半个洲地区那般大的容量。电子装置的电力限制,通常受限于整流、放大,与系统其它组件的能力,其中有些部份属放大电力者,但如与电力系统发电能力相比较,它仍然归属于小电力之范围。

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BENTLY | 1900/65A-00-00-02-00-01 | GE | VMIVME-7750 |
Vibro-meter | 200-510-076-114 200-510-111-034 VM600 MPC4 | GE | VMIVME-7650-83H |
TRICONEX | 8120E | GE | VMIVME-7666-111000、VMIVME-7807 |
ABB | PCD530A102 3BHE041343R0102 | GE | VMIVME-7807RC |
ABB | KUC755AE117 3BHB005243R0117 | GE | VMIVME-7459 |
ABB | PPC907BE 3BHE024577R0101 | GE | VMIVME-7658 |
KEBA | FB201 | GE | VMIVME-2540-000 |
DANFOSE | EKC361 | GE | VMIVME-7700 |
ABB | DAPI100 3AST000929R109 | GE | VMIVME-4116 |
SCANLAB | INTELLISCANDE III14-532NM | GE | VMIVME-2510B |
WOODWARD | 5233-2089 | GE | VMIVME-4140 |
ICS TRIPLEX | T8314 | GE | VMIVME-7486 |
ICS TRIPLEX | T8231 | FOXBORO | FCP270 P0917YZ |
ICS TRIPLEX | 9100 T9100@F2 | NI | SCXI-1104C |
BENTLY | 3500/20 125744-02 | TRICONEX | 8312 |
BENTLY | 3500/32 125712-01 | ABB | CS31 |
BENTLY | 3500/42M 140734-02 | BENTLY | 1900/65A-01-02-01-00-00 |
ABB | UFC921A101 3BHE024855R0101 | BENTLY | 1900/65A 167699-02 |
BENTLY | 3500/22M 138607-02 | RAMIX | PMC661 |
ABB | UFC762AE101 3BHE006412R0101 | SBS | PMC-HS-SERIAL |
ABB | XVC767AE105 3BHB007209R0105 | EMERSON | SLS1508 KJ2201X1-BA1 |
ABB | XVC768115 3BHB007211R115 | MOTOROLA | MVME2400 |
ABB | 5SHY5055L0002 3BHE019719R0101 GVC736BE101 | ABB | CI855K01 |
ABB | AO2000 LS25 | GE | IS420ESWBH1A |
ABB | DSMB-01C | EPRO | PR9268/203-000(10M) |
HONEYWELL | FC-PSU-UNI2450U V2.1 | EPRO | PR6426/010-010+CON021 |
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