الوصف In power system, CT is widely applied in one time measurement and control of current. In normal working condition, the secondary side of CT is almost short circuit, and output voltage is very low. During operation, if the secondary winding is open circuit, or abnormal current flows the primary winding (such as lightning current, resonance over current, capacitance charging current, inductive pickup current etc.) It will produce several thousands even several ten thousands voltage on the secondary side. This will not only damage the secondary system insulation, but also make CT burning owing to over voltage, even endanger the workman. But this CT can prevent such accident caused by the secondary open circuit of CT. The protector connects the two ends of secondary winding. The leakage current is very low on the normal working condition, and it's at the state of high resistance. When the abnormal over voltage occurs, the protector will act promptly and then short circuit. The panel will display the position of malfunction and the signal output of no power. When the malfunction is removed, pushing "reposition" button, the circuit will recover before, and then come into the normal condition.
معلومات أخرى
الموقع:
China
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عينة متاحة:
YES
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كلمات دالة ذات صلة:
surge protector , isolation transformer , power transformer , signal transformer
electrical supplies , circuit breaker , surge Protector , series circuit , electrical connectors , electric circuit , electrical switches , electrical plugs , motor controls , proximity switch , rotary encoder , incremental encoder , servo motors , potentiometers , transfer switch , isolation transformers
