Amol Deshmukh’s Post

Central Electricity Authority (CEA) has released a committee report on calculation of reduction in right-of-way (RoW) width for transmission lines built with contemporary technological options. The report offers detailed calculations on RoW width for transmission lines built with additional technological options like monopole tower and HTLS (high temperature low sag) conductors. Accordingly, this report considers RoW width for ACSR conductors with monopole structure, HTLS conductors with monopole structure and HTLS conductor with conventional-type tower (lattice). #cea #powertransmission #monopole

Power distribution losses nearly halved in 10 years https://lnkd.in/gjggWHtn #Discoms #RenewablePower #PowerDistribution #IEEMA #RDSS #HydelPower #PhotovoltaicModules

Transmission is the talk of the town today, and for good reason: Federal Energy Regulatory Commission's new Grid Expansion Rule (Order 1920) is hot off the press, and appears favorable on first read. By my count, this is the third pillar in the "rule of 3" on transmission in the Northeast here in the last few weeks: 1. U.S. Department of Energy (DOE) advances several proposed National Interest Electric Transmission Corridors (NIETC) designations relevant to the Northeast, including: New York-New England; New York-mid-Atlantic; and mid-Atlantic-Canada (https://lnkd.in/e9gCc7YX). 2. ISO New England Inc./NEPOOL file Phase 2 OATT tariff revisions with FERC: huge kudos to the state staff and others involved in the lengthy deliberations around these important transmission tariff reforms for New England, which set the stage for key public policy procurement(s), and which may pre-sage Order 1920 compliance in the coming months. Awesome to see regional/multi-state dialogue produce this type of output. 3. And now, FERC issues Order 1920 advancing its hotly anticipated Grid Expansion Rule, which will spur and shape RTOs' transmission planning and procurement efforts within their own boundaries, as well as (it appears) some interregional coordination as well (https://lnkd.in/ervpZU6c). It will be a busy 12 months ahead! So buckle up as the northeast looks to plug in on #transmission.

what is FGMO Actually? And how it works in a power plant? FGMO stands for Free Governor Mode of Operation. It’s a method used in power plants to automatically adjust electrical power generation in response to changes in the frequency of the electricity grid. The goal of FGMO is to maintain a stable grid frequency, which is crucial for reliable power delivery. In a power plant, the governor is a device that controls the power output of the generator. In FGMO, the governor is set to operate freely without manual intervention, allowing it to respond to real-time changes in grid frequency. This is important for grid stability, especially during times when there are fluctuations in power demand or supply. Here’s how it works in a power plant: When the grid frequency drops below the nominal frequency (for example, below 50 Hz), it indicates that the demand for electricity is higher than the supply. The FGMO allows the governor to increase the power output to match the demand, thereby helping to raise the frequency back to its nominal value. Conversely, if the grid frequency rises above the nominal frequency, it suggests that the supply is exceeding the demand. The governor will then reduce the power output, which helps to lower the frequency to the desired level. In practice, implementing FGMO can be complex. For instance, a power plant might experience abnormal load variations when the grid frequency fluctuates significantly. This requires careful management and sometimes optimization of the power plant’s operations to ensure that the frequency remains within a safe and stable range. FGMO is particularly relevant in Bangladesh, where it has been rolled out in all power plants since late 2023 to help maintain steady frequency and prevent power disruptions. This was a response to the country’s history of unstable system frequency and the major countrywide blackout in November 2014. The implementation of FGMO is a step towards achieving better frequency control and overall power system stability.

Unveiling the Magic: How Delta Transformer Windings Balance Electrical Loads This is something that you hear a lot of times but rarely does anyone explain it: "deltas help redistribute load" or the corollary "deltas help balance the voltages." They do, and I'll get to that. First, let's just go over a transformer that does neither of these two things: the Wye-grounded-Wye-grounded transformer. The phase-to-neutral windings on a Wye-Wye transformer are paired directly between the primary and secondary. This means that if you have a single-phase to neutral load, the current that it draws will be reflected directly to the primary side, and assuming the transformer is grounded, the other two phases will be unbothered by what is done on one phase. This is a benefit that is often desired when there is a lot of load imbalance, as it allows a large single-phase load not to affect the voltages of the other two phases. This also means that any load imbalance on the secondary side will be reflected on the primary side, which could cause problems and need to be mitigated. The Wye-Wye configuration allows for unbalanced loads to exist without causing voltage issues due to its grounded wye, which presumably will be connected to a ground source. How is a Delta Winding Different? The part that makes a delta's response to load imbalance different is that the windings are in a closed loop, and this allows current to circulate in the delta. For example, let's say that you have a zero-phase-shift delta-delta transformer with windings that we will call ABH, BCH, and CAH on the primary and ABX, BCX, and CAX on the secondary. If you had a load on the ABX winding, the current that passes will induce a voltage that causes current through the windings BCX and CAX because it is a closed loop. These currents through these windings will cause currents to flow in the primary windings, BCH, and CAH. Currents that were just passing through one winding in the secondary are causing currents from winding voltage in the other phase-to-phase windings. This causes a circulating current in the secondary delta that causes a circulating current in the primary delta and helps redistribute the load more evenly. A delta-wye would do the same thing as this delta-delta did on redistributing the loads more evenly on the delta side. It doesn't have to be a delta-delta transformer. From this, it is easy to see why a Wye-grounded winding is great if you don't want individual loads to affect the other voltages due to imbalance or don't care about how unbalanced the load is. The other side is having a delta, which helps redistribute the load current more evenly on the primary side and likely maintain more similar voltages due to more even voltage drops on the primary side. #utilities #renewables #energystorage #electricalengineering #transformers

Exploring the Dynamics of #BuswaySystems: Short-Circuit Capacity and Standards. A friend's query about varying short-circuit and capacity levels in busway systems sparked my interest, leading to this insight.   *Requirements for Short Circuit Level:* In Latin America, typical residential and commercial buildings often use transformers not exceeding 1200 KVA @ 220 Vac. In industrial settings, this can extend up to 4 MVA, necessitating an Icc (Interrupting Current Capacity) of about 50 kA. Achieving a busbar with a 100 kA capacity can cater to over 90% of the market. Near hydroelectric plants, higher Icc systems are needed, but such scenarios are exceptional.   The challenge lies in conducting tests for these capacities, as few labs offer such services and at a high cost. Typically, tests in this region go up to 30-40 kA, with theoretical extrapolation for higher levels.   *Nominal Capacity Requirements for Busbars:* Focusing on transformers ranging from 75 KVA @ 220 V to 1200 KVA at 220 V, which also includes the 440 V and 480 V markets, busbars needed range from 200 to 4000 amperes. For specific conditions, considering up to 5000 amperes is prudent to cover the low-voltage power distribution market (up to 600 volts AC). The scenario varies for medium voltage – a topic for another discussion. Standards like UL 857 guide these specifications.   In my view, regardless of a factory's size or age, those with more #Qualified and #Innovative personnel are likelier to offer equipment that aligns closely with user needs.   I'm curious to hear your thoughts and experiences on this topic. Have you encountered similar challenges with #BuswaySystems, or do you see different trends in your region? Feel free to share your insights or ask questions in the comments below – let's keep the discussion going!

See the A B C, 😻 Also see the a b c #Oil-immersed Transformer#Power Transformer#Distribution Transformer#Three phase Transformer@Electric power facilities

Power leakage reduced by half in eight years, 12 billion more income every year https://lnkd.in/dsxzwtBq #pardafas #epardafas #power #PowerLeakage #PowerTrade #electricity

https://lnkd.in/gebiKfNM Important for those who are working on power transmission and distribution.

Q| What is the purpose of using an Auto Transformer instead of a normal power transformer in power systems ? Ans| Auto Transformers are used in power systems for several reasons: Cost Efficiency: Auto transformers use less copper and iron, making them cheaper for the same power rating. Example: For voltage transformation between 220 kV and 132 kV, an auto transformer would be more economical than a two-winding transformer. Improved Voltage Regulation: They provide better voltage regulation due to lower impedance. Example: In a transmission network where voltage stability is crucial, an auto transformer can maintain the voltage more consistently. Size and Weight: They are smaller and lighter compared to conventional transformers. Example: In a constrained substation space, an auto transformer can fit better due to its compact size. Higher Efficiency: They have higher efficiency because of reduced losses. Example: In a system where minimizing energy loss is critical, such as long-distance power transmission, auto transformers offer a more efficient solution. #NGT #NGR #generator #mitigation #power #powersystem #filters #transmission #distribution #harmonics #faults #analysis #resonance #generation #powerplant #grid #stability