Z-finger
Petal shaped contact finger machined from copper tube or extruded from copper rod
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Z-finger
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Z-finger
Graphic details
The petal shaped contact finger,which is formed by cutting copper tubes or extruding copper rods,is widely used in power transmission and distribution equipment and switchgear.Both ends of the contact strip are in contact with the main electrical circuit elements(contact base and moving contact).The petal shaped contact finger is commonly used for separable electrical contact,and the contact surface can be automatically cleaned during the insertion and removal process to maintain the stability of the contact resistance.
Characteristic
The petal shaped contact finger has large cross section and large heat capacity.Increasing the number of pieces and cross section can obtain greater flow capacity and electric stability.It has high mechanical strength and strong collision resistance,so it is often used for static contacts that can be divided into electrical contacts.Even in places with interrupting arc interference,there will be no destructive abnormal damage due to sufficient thermal capacity.
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