Transformer Winding Resistance Measurement, OLTC Condition Analysis and Ideal Kit Specifications

Power transformers are one of the most expensive and critical assets of the power sector. In this blog, we will discuss [1] principles of winding resistance measurement, a common transformer test prescribed in various standards such as IEEE C57.12.90-2006 Clause 5, IEC 60076-1 Clause 10.2, IS 2026-1 Clause 10.2; [2] OLTC condition analysis; and [3] …

How to do Condition Assessment Diagnostics of Generators?

Over the years, power generation in India has grown manifold: installed capacity has increased from 1.36 GW in 1947 to 382.73 GW as on April 2021 (Source: CEA). Therefore, maintenance of generators is critical to ensuring uninterrupted quality power to the country. Apart from the generator, the HT transformer and the HT motors play a …

Monitor Your Distribution Network In Real-time with OrxaGrid’s Single Line Diagram (SLD)

This post is co-created with OrxaGrid to showcase OrxaGrid's interactive & intuitive Single Line Diagram which allows users to easily create, edit and export their single line diagrams The Grid Analytics Platform features an editable and configurable Single Line Diagram (SLD) tool that brings live system monitoring data from on-site sensors. Having an SLD tool …

Success Story: Deploying an Energy Management System at a Distribution Utility

In our previous blog we spoke on an ambitious initiative by the Government to ensure financial viability of DISCOMs, we noted the considerable gap between cost incurred and revenue earned by DISCOMs. The losses made by DISCOMs has a domino effect on the entire value chain in the power sector, as evidenced by the dues …

Success Story: Testing and Maintenance of Electrical Equipment at a Steel Manufacturing Plant

Studies show that in 2019, India was the world’s second largest producer of crude steel with a capacity of 111.2 MT. India’s finished steel consumption is also projected to rise from 99 MT (2018-19) to 230 MT by 2030-31. Furthermore, with the government’s view towards self-reliance, steel companies are ramping up steel production capacity. Therefore, …

An ambitious reform oriented scheme to ensure financial viability of DISCOMs in India

In a previous blog detailing our views on the impact of the Union Budget on the power sector, we referred to the proposed revamped, reforms-linked scheme providing assistance to DISCOMs. At the time, details on the scheme were forthcoming. Recently, the Central Government circulated the draft guidelines on the new scheme and invited comments from …

Hi-Pot Testing : What, Why and How

The electrical grid network is oftentimes classified as critical infrastructure. For electrical utilities, any disruption which leads to major downtime is a major source of revenue loss. Furthermore, policymakers today expect network operators to deliver 24/7 electricity to the retail consumers. As a result, it is important that electrical equipment have the highest standards of …

Our Views on Impact Of The Union Budget On The Power Sector

The Hon’ble Finance Minister, Ms. Nirmala Sitharaman, presented the Union Budget for the year 2021-22 on February 01, 2021. The budget was presented in unprecedented circumstances, with the pandemic driving the economy to a major contraction. The Atmanirbhar Bharat packages, introduced in May 2020, were a key marker of the vision of a self-sufficient India.  …

Importance of Velocity of Propagation in TDR Method for UG cable fault location

In the previous blog, we concluded our three-part series on underground cable fault location. To review, we discussed the types of cable faults, methodology for locating cable faults, fault finding through Pre-location techniques and cable route tracing, pinpointing, cable identification and repair and re-test. In Part-2 of our 3 part series, we introduced the methodology …

Step 2 in Underground Cable Fault Location : Cable Route Tracing, Pinpointing, Cable Identification, Repair & Re-test

In the previous blog  we discussed the principle of cable fault pre-location and noted the criticality of this technique towards reducing the time taken to identify location of the fault. We also deliberated upon the various cable fault pre-location techniques.  In this blog post, we will continue our ongoing discussion on cable fault location by …