Underground Impedance cable Fault - PPT - 1.pptx

Underground Cable Fault Detection With Static Bypass System

1. Underground cable fault detection with static bypass system Detection of type of fault and exact location of fault present in the underground cables and transfer of all load on alternative cable using static bypass system. Guided by – Members -

2. Abstract cable fault detection over operators mobile apps that detects the exact fault position that makes repairing work very easy. The repairmen know exactly which part has fault and only that area is to be dug to detect the fault source. This saves a lot of time, money and efforts and also allows to service underground cables faster. We use arduino controllers with the exact electrical model of the cable technology that allows the authorities to monitor and check faults over line mans mobile app. The system detects fault with the help of potential divider network laid across the cable. Whenever a fault gets created at a point shorting two lines together, a specific voltage gets generated as per the resistors network combination. This voltage is sensed by the microcontroller and is updated to the user. The information conveyed to the user is the distance to which that voltage corresponds to. The microcontroller retrieves the fault line data and displays over app display, also it transfers this data over internet to display online.

3. Introduction An bundle of electrical conductors used for carrying electricity is called as a cable. An underground cable generally has one or more conductors covered with suitable insulation and a protective cover. Commonly used materials for insulation are varnished cambric or impregnated paper. Fault in a cable can be any defect or non-homogeneity that diverts the path of current or affects the performance of the cable. So it is necessary to correct the fault.

4. Need of the project There are different advantages and disadvantages for underground transmission lines. When compared with overhead transmission lines. Underground cables have different technical requirements than overhead lines and have different environmental impacts. Due to their different physical, environmental, and construction needs, underground transmission generally costs more. Hence it is necessary to determine the fault with its type and location.

5. Working of model Fault detection A theoretically perfect cable returns that signal in a known time and in a known profile. Impedance variations The voltage pulse reflection method, as uses a voltage coupler and an analyzer with a dielectric test. This method uses a special instrument to test out service of cable in the field. Offline method is classified into two methods such as tracer method and terminal method.

6. Block diagram.

7. Design steps Planning of all the requirements of the project Preparing the detailed list of material required Testing of Components Circuit designing Final assembly of components Testing of performance Correction of errors or up gradation of the results to satisfactory level.

8. Desired outcomes Type of fault that is generated inside the cable Location of fault from starting end Report of fault to the control room trough wireless communication. Static bypass system transfers the load of faulty cable to a healthy section of cable to serve the load without interuption .

9. Advantages of the concept Far fewer momentary interruptions Improved utility relations regarding tree trimming Improved Public Safety Fewer motor vehicle accidents Reduced live-wire contact injuries Easy to repair. Easyness in finding the actual location of underground buried cables. Unwanted digging is avoided

10. Disadvantages High installation cost.

11. Applications Urban cities Industrial cable networks Smart City Smart Power Management applications

12. Any questions?

13. Thank you