我国目前生产的热继电器主要有JR0、JR1、JR2、JR9、R10、JRl5、JRl6等系列,JRl、JR2系列热继电器采用间接受热方式,其主要缺点是双金属片靠发热元件间接加热,热偶合较差;双金属片的弯曲程度受环境温度影响较大,不能正确反映负载的过流情况。
用作三相异步电动机的均衡过载保护和Y联结定子绕组的三相异步电动机的断相保护,但不能用作定子绕组为△联结的三相异步电动机的断相保护。
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PHOTOCRAFT PTRH-F LIGHTSOURCE SENSOR, NNB
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SOLA ELECTRIC 28-24-250 115 VOLT POWER SUPPLY
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ALLEN BRADLEY 1336 IMPACT AC Drive documentation Refere
ALLEN BRADLEY PanelView Terminals Documentation Referen
ALLEN BRADLEY ControlLogix Analog I/O Modules User Guid
ALLEN BRADLEY 1305 Adjustable Frequency AC Drive User M
ALLEN BRADLEY DeviceNet Communications Module User Guid
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ALLEN BRADLEY AdaptaScan Bar Code Readers User Manual,
ALLEN BRADLEY DeviceNet Interface User Manual,