ABB  1SVR730884R3300 三相继电器

ABB 1SVR730884R3300 三相继电器-产品快照

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ABB
型号:
1SVR730884R3300

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供应商名称 电话 备注
福建创鼎电气设备有限公司 0591-22874098
众业达电气(深圳)有限公司 0755-89314987 irene.li@zyd.cn,13509669211
广州市高捷联机电科技有限公司
浙江中研电气有限公司
南京蒂尔斯科技发展有限公司 025-84572847
佛山市路加机电贸易有限公司
杭州和枫电气有限公司
上海乐利自动化科技有限公司
成都立大电气有限公司
福建富通达电气技术有限公司
广州昊永机电设备有限公司 020-82030832
高捷联电源环保科技(苏州)有限公司 0512-62622223
中山市凯昌机电设备有限公司
广州申控电气技术有限公司
成都乾诚自动化设备有限公司 028-66017989

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产品介绍

ABB 1SVR730884R3300 三相继电器

1SVR730884R3300 - ABB 1SVR730884R3300, CM-MPS.41S THREE-PH MONITOR RELAY

ABB

1SVR730884R3300 - ABB 1SVR730884R3300, CM-MPS.41S THREE-PH MONITOR RELAY Phase unbalance monitoring If the supply by the three-phase system is unbalanced due to uneven dis-tribution of the load, the motor will convert a part of the energy into reactive power. This energy gets lost unexploited; also the motor is exposed to hig-her thermal stress. Other thermal protection devices fail to detect continuing unbalances which can lead to damage or destruction of the motor. The CM range three-phase monitors with phase unbalance monito-ring can reliably detect this critical situation. Phase sequence Changing the phase sequence during operation or a wrong phase sequence prior to startup causes a change of the rotational direction of the connected device. Generators, pumps or fans rotate in the wrong direction and the installation is no longer working properly. Especially for moveable equipment, such as construction machinery, phase sequence detection prior to the startup process is highly reasonable. Phase loss In case of phase loss, unde?ned stats of the installation are likely to occur. E.g. the startup process of motors is disturbed. All three-phase monitors of the ABB CM range detect a phase loss as soon as the voltage of one phase drops below 60% of its nominal value. Voltage monitoring All electric devices can be damaged when operated continuously in a net-work with out-of-range voltages. For example, safe starting is not ensured in case of undervoltage. Also, the switching state of a contactor is not clearly de?ned when operated in a "forbidden" voltage range. This can lead to unde?ned states of the installtion and cause damage or destruction of valuable parts. Extended functionality ABB's new generation of three-phase monitoring relays feature additional functions making the application ?eld for the devices considerably larger. Selectable phase sequence monitoring The phase sequence monitoring can be switched off by means of a rotary switch or a DIP switch. This enables monitoring of three-phase mains where phase sequence is not relevant for the application, for example in case of motors with forward and reverse rotation, heating applications, etc. Automatic phase sequence correction The automatic phase sequence correction is activated by means of a DIP switch. With activated phase sequence correction, it is ensured that for any non-?xed or portable equipment, e.g. construction machinery, the cor-rect phase sequence is always applied to the input terminals of the load. For details regarding the wiring, please see function description / diagrams. Characteristics of the CM range three-phase monitors Adjustable phase unbalance threshold value 1) Adjustable ON-delay/OFF-delay time 1) Dual frequency measuring 50/60 Hz Powered by the measuring circuit 1 n/o contact, 1 or 2 c/o contacts LEDs for the indication of operational states Multifunctional and single-functional devices Phase failure detection Phase sequence monitoring 1) Over- and undervoltage monitoring (?xed or adjustable)1) Wide-range operating voltage guarantees world-wide operation Approvals / Marks Download the Electronic Products and Relays catalog in *.pdf format

Current and Voltage Monitoring Relays, Three-Phase

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