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Megan Young
Megan Young
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January 27, 2026 at 6:14 pm in reply to: Why should we use star-delta connection in step down power transformers? #332297Megan YoungMember
Enables phase shift, neutral availability, reduces harmonics, and suits LV distribution.
Megan YoungMemberVector group describes phase displacement, winding configuration (Y/D/Z), and connection (HV/LV). It informs parallel operation, harmonic behavior, and protection settings. Common groups include Dyn11, YNd1, Yy0.
January 26, 2026 at 11:07 am in reply to: Why does power loss in a transformer increase under heavy load? #332023Megan YoungMemberLoad currents increase copper (I²R) losses and stray losses. Thermal rise accelerates oil aging and insulation degradation, raising dielectric losses.
January 25, 2026 at 8:08 am in reply to: What topics are covered in electrical power, motors, controls, generators, and transformers? #331819Megan YoungMemberThese industrial texts integrate machinery, controls, and power conversion. Transformer sections cover voltage transformation, impedance, losses, vector groups, cooling, and protection within broader plant power systems.
January 25, 2026 at 6:20 am in reply to: How does a power step up transformer increase voltage levels? #331805Megan YoungMemberThe secondary winding has more turns than the primary, boosting voltage while current decreases proportionally to conserve apparent power minus losses.
Megan YoungMemberRatings include voltage class, kVA/MVA, cooling type (ONAN/ONAF/ODAF), impedance, insulation class, and temperature rise. They follow IEC/IEEE catalog ranges.
January 23, 2026 at 4:19 am in reply to: Where are medium power transformers installed in grid systems? #331389Megan YoungMemberMedium power transformers (typically 5-60 MVA, MV/HV interfaces) are installed in sub-transmission and distribution substations. They reduce transmission voltages to feeder voltages for industry and cities, forming a key intermediate step between bulk transmission and final distribution.
January 20, 2026 at 11:54 am in reply to: Where are power distribution transformers installed in electrical networks? #330534Megan YoungMemberDistribution transformers are installed on poles, pad-mounted enclosures, vaults, and kiosks to step MV feeders down to LV service for homes, commercial buildings, and industry.
January 20, 2026 at 6:52 am in reply to: What determines power transformer cost in industrial procurement? #330480Megan YoungMemberCost is driven by kVA/MVA rating, voltage class, insulation level, cooling system, and special features like OLTCs, online monitoring, and seismic or fire requirements. Copper and core steel market prices significantly influence base cost. Custom vector groups, multiple windings, higher efficiency (low-loss) designs, and stringent test requirements add expense. Logistics, such as transportation constraints, site access, and installation complexity, also factor into the total procurement price seen by industrial customers.
January 20, 2026 at 1:51 am in reply to: What applications require Eaton control power transformers? #330442Megan YoungMemberControl power transformers feed relays, PLCs, contactors, and meters in automation, switchgear, and motor control centers, ensuring stable low-voltage auxiliary power.
January 19, 2026 at 11:44 pm in reply to: What cooling methods are used in power transformers? #330426Megan YoungMemberCommon cooling methods include ONAN (oil natural air natural), ONAF (oil natural air forced), OFAF (oil forced air forced), and OFWF (oil forced water forced). Dry-type units use AN (air natural) or AF (air forced). Radiators, fans, oil pumps, and heat exchangers enhance heat removal and allow higher loading. Some large units use directed oil flow and internal ducts to manage winding hotspots. Cooling class is a key specification, directly influencing kVA rating and overload capacity.
January 19, 2026 at 9:21 pm in reply to: How is power factor for a transformer corrected in industrial facilities? #330408Megan YoungMemberCapacitor banks or synchronous condensers offset magnetizing reactive power, improving PF at light loads and reducing demand charges.
Megan YoungMemberApparent power for single phase is S=VI; for three phase S=?3VI. Real power depends on power factor and losses.
November 11, 2025 at 10:12 am in reply to: A large refinery with over 170 transformers requires a transformer oil filtration machine. Please include data sheet, specifications, and delivery time. #327494Megan YoungMemberFor high-capacity transformer networks, the CMM-12 and CMM-24 systems are optimal. They provide degassing, drying, and purification for oils in transformers up to 100 MVA. Technical specifications and delivery schedule will be included.
Megan YoungMemberThe TOR-80, TOR-2, and TOR-3 analyzers are available for immediate production. Each device complies with IEC standards. We will provide detailed pricing, delivery time, product documentation, and packing information. The Reid vapor pressure unit can be offered separately upon confirmation of specification.
Megan YoungMemberGlobeCore filtration plants remove moisture, gases, and mechanical impurities from transformer oil, improving breakdown voltage and dielectric strength. We’ll send specifications and price details.
November 9, 2025 at 2:30 pm in reply to: Looking to purchase a TOR-3 Tan Delta Tester for transformer oil and dielectric fluids. #327310Megan YoungMemberThe TOR-3 measures the dissipation factor (tan delta) of transformer oil and dielectric fluids in accordance with IEC standards. We will assist with the purchase process and provide technical documentation and pricing.
November 9, 2025 at 12:56 pm in reply to: Need the cost of purchasing the CMM-24R/10000 Type H and estimated delivery charges. #327304Megan YoungMemberThe CMM-24R/10000 Type H is a high-capacity oil regeneration plant operating at 24 m³/h. We’ll send pricing, delivery time, and transport cost estimates.
September 17, 2025 at 11:20 am in reply to: What is oil filtering in the context of industrial maintenance? #325574Megan YoungMemberOil filtering removes solid particles that cause wear and clog systems. GlobeCore units provide 3-5 stage filtration down to 1 �m – ideal for extending oil and equipment life in manufacturing, power, and transport industries.
Megan YoungMemberIt includes heating, coarse filtration, vacuum drying, fine filtration, and degassing. GlobeCore automates all stages in one system – restoring BDV above 70 kV and removing water to <10 ppm.
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