Basic tasks of relay protection

The basic tasks of power system relay protection are:

(1) Automatically, quickly and selectively remove the faulty component from the power system, so that the faulty component is protected from continued damage, and other fault-free parts are quickly restored to normal operation.

(2) Responding to the abnormal operating state of the electrical components, and acting on the signal according to the conditions of operation and maintenance (if there are any regular duty personnel), so that the attendant can handle it in time, or the device can automatically adjust, or those that continue to operate Electrical equipment that causes damage or develops into an accident is removed. At this time, it is generally not required to protect the rapid action, but a certain delay according to the degree of damage to the power system and its components, so as to avoid the misoperation caused by unnecessary movements and disturbances caused by the short-running fluctuations.

(3) The relay protection device can also cooperate with other automation devices in the power system. When conditions permit, take predetermined measures to shorten the power failure time and restore power as soon as possible, thereby improving the reliability of the power system operation.

Volvo Drive Parts

The brand represents innovation and customer satisfaction. When producing a machine, Volvo keeps the requirements and preferences of the customer in mind. Volvo also thinks in terms of solutions that increase the productivity and efficiency at the work site. Everything considered, Volvo offers a trusted package of high-quality machines where the company is ready for its customers when this is required.

It is annoying when your Volvo machine stops working at the workplace. A reason for the machine not working may be a worn Final Drive. Naturally, this is not a good situation and you want to ensure your machine can start work as quickly as possible. We offer the right solution at JUHENG for this.

We ship worldwide so you will receive our final drive motors at your address in the shortest time. Shipping costs and delivery time depend on number of items ordered and shipping address. E.g. We Ship to Europe within 4 working days.


The final drive must therefore be replaced. Luckily, you are exactly at the right place at JUHENG. We offer a large range of final drives for your Volvo machine. You can easily find the right final drive for your machine by using our search methods. You can find the right final drive by searching based on: the OEM number, the brand and type or the dimensions of the final drive. Do you want to know more? Contact us.

With solutions available for over 170 Volvo excavator models, Volvo Final Drive,Volvo Final Drive Assy,Volvo Travel Motor,Volvo Travel Gearbox,Volvo Final Drive Spare Parts,Volvo Drive Parts,Volvo Motor.


Volvo Final Drive,Volvo Final Drive Assy,Volvo Travel Motor,Volvo Travel Gearbox,Volvo Final Drive Spare Parts,Volvo Drive Parts,Volvo Motor

Jining Juheng Hydraulic Machinery Co., Ltd. , https://www.sdjuhengmachine.com