Managing your bushing equipment can get to be expensive - even with a life expectancy of 40+ years. Here are three easy ways to save as you evaluate your substation equipment.
With energy demand continuously increasing, adding further stress and wear on already aging power generation assets, energy providers are faced with finding reliable cost effective solutions to keep their equipment running while also being able to extend their useful life. Here are 3 Benefits to Test Terminals.
When utility crews are dealing with the aftermath of storms, they cannot forget to evaluate how the guy anchors have been impacted. Rebuilding the overhead lines depends more than ever on the holding capacity of the guy anchor.
There are two options for defective bushings: (1) Replace with new bushings or (2) Repair existing bushings. Repairing a defective bushing is often more appealing financially and timewise. Typical bushing repairs include a regasket bushing or recore bushing to the original.
As early as 2015, telephone companies no longer supported 4-Wire audio leased lines. This presents an issue for utilities currently operating their line voltage protection or SCADA equipment via 4-Wire leased lines (analog). In some scenarios, full or fractional T1 leased digital data service lines are available for a nominal monthly fee. In other scenarios, leased Ethernet service lines are available at a lesser monthly fee than T1 leased lines. Utilities are looking for a path forward that minimizes operational impact, requires little engineering, and assures comparable security and dependability for their protection and SCADA signaling. See Figure 1 (below).
To install distribution arresters:
1. Follow the directions, recommended work practices and be safe.
2. Inspect the packaging and product, looking for signs of damage: packaging (left) and dented nameplate (right).
An arc flash or arc flashover occurs when an electrical discharge goes through air. It can cause a bright visible light as well as damage the two objects it lands on.
When a hotline tap clamp is installed directly on a main line the arc goes from the bill of the hotline tap clamp to the main line.
Topics: Arc Flashovers
Electro Composites™ and PCORE® bushings are routinely tested in the factory and the power factor results are put on bushing nameplates. It is not uncommon to see the power factor test results in the field are slightly different from the nameplate values. This is mainly caused by the differences in the test sets and the testing environment. However, a significant difference may indicate some testing issues in the field. The users may see significantly higher or lower values of either C1 or C2 power factors than the bushing nameplate values. Below are the checklists we recommend for the users to eliminate testing issues:
In the rare instance you encounter issues installing CHANCE® PISA® anchors (power installed screw anchors), take time to analyze what challenges arose.
5 QUESTIONS TO HELP IDENTIFY THE PROBLEM
1. Is there an anchor shaft fracture?
Look at the tooling anchor damage caused during the installation. A common problem for PISA anchors is an anchor shaft fracture during installation. Driving the anchor requires significant force and that torque is transmitted from the anchor installing wrench to the anchor helix via the anchor shaft. Therefore, if the anchor shaft stress exceeds the shaft’s ultimate strength, the anchor shaft will fracture.
When it comes to USCO® switches, we have a rigorous process to provide a top quality product. Reviews, design, approvals and manufacturing all go into product lead times.
Receive Purchase Order from Customer; Customer Service enters into SAP system