2017年8月26日 · A 34.5-kV, 30-mi mainline is going to have many more interruptions than a 12.5-kV system with an 8-mi main-line. To maintain the same reliability as a lower voltage distribution system, a higher-voltage primary must have more switches, more automation, more tree trimming, or other reliability improvements.

The 34.5 kV transformer operates within the 35 kV voltage range and is commonly utilized in the power distribution grid systems across North America, Central America, and South America. In this article, I will discuss the definition, types, accessories, testing procedures, and more related to the 34.5 kV transformer.

The 31.5 MVA 115/34.5 kV Transformer is an IEC-standard, mineral oil-immersed unit designed for continuous operation. It features a robust ONAN/ONAF cooling system and includes a 32-step on-load tap changer, automatic voltage regulator, and multiple safety accessories like Buchholz relays and thermal imaging.

Voltage transformers in this guide are de-signed to transform primary voltages from 5 – 34.5 kV to a level which is useable for measurement and protection devices. Most VTs are designed for 60 Hz but can also be designed for other frequencies. Instrument voltage transformers can also be referred to potential transformers (PTs).

2017年8月11日 · The portfolio includes disconnectors for AC applications (up to 1,200 kV), for DC applications (up to 1,000 kV) and for railway applications. We also offer power connectors to connect two or more conductors for a continuous electrical path.

In the case of 34.5kV transformers, its role is to allow power transition from high to medium voltage consumption. It can distribute power to consumers or another substation, depending on its role. Technically, 34.5kV transformers fall under medium voltage classification, varying from the substation, pad-mounted, or pole-mounted types.

2024年11月9日 · Feeder – Output from collector, input to 34.5 kV bus. Key Protection – Circuit breakers, protection relays , capacitor bank, and step-up transformer. Outputs to grid at 115 kV.

ARTECHE CE series are dry type outdoor service current transformers. The core is encapsulated with Type B epoxy resin which provides excellent internal dielectric properties and mechanical strength.

This range of voltage transformers is designed for applications up to 34.5 kV class with BIL ratings up to 200 kV. The core and coil assemblies are vacuum cast using polyurethane resin to provide high dielectric strength and rugged construction.

2017年9月16日 · Voltages defined as “ subtransmission ” or “ transmission ”, however, often require the use of voltage regulators or load-tap changing transformers at the service equipment to give adequate voltage regulation. This situation typically only occurs for service voltages above 34.5 kV, however it can occur on voltages between 20 kV and 34.5 kV.