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Resistance furnace wire break alarm circuit
Source: InternetPublisher:念慈菴 Keywords: Alarm circuit circuit breaker resistance furnace BSP Updated: 2021/03/24
When a furnace wire breakage occurs in the resistance furnace , it can send out an audible and visual alarm signal and
display which phase of the furnace wire is broken .
The signal (from
current ; the amplifier circuit is composed of transistor VTi (VTz, VTs); Diodes
VD13, VD14 and VDis form an OR gate circuit; transistor VT4 is used as power amplification to promote the action of relay KA.
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