Technology Update

Lucy launches next-generation switchgear

Lucy launches next-generation switchgear

UK-based switchgear manufacturer Lucy Switchgear has announced the launch of its next-generation Aegis Ring Main Unit range.

The new units come in 12 kV, 17.5 kV and 24 kV options with up to 630 Amps ratings, in extensible and non-extensible formats. They are automation-ready, and can be motorized for remote operation and control and integrated into SCADA networks, the firm said.

Among the units’ features are front access cable terminations, single line mimic diagrams and up to four switching functions in a single tank. Live parts and switching functions are insulated with SF6 gas in a sealed stainless steel tank.

Also included are either electronic relays or time limit fuses for protection, and additional safety features such as internal arc rated tank and cable compartments, separate earth and test facility at the front, and an anti-reflex mechanism to prevent switch opening under fault conditions.

Himoinsa makes a noise over soundproofed gensets

Himoinsa makes a noise over soundproofed gensets

Genset manufacturer Himoinsa’s latest offering consists of seven soundproofed open generator models.

The new HHW series features a power output from 20 kVA-100 kVA at 50 Hz, and from 30 kVA-120 kVA at 60 Hz.

Himoinsa said it is marketing the genset models with three types of canopies, which all feature an inner lining of mineral wool and a hood coated with sound-absorbing, flame-retardant material. The gensets comply with IP23 protection grade requirements and have been water tested according to EU regulations and UL standards, Himoinsa said. The company claims they will function in extreme weather conditions and may be stacked and transported in containers in groups of 24, 11 and eight units depending on choice of canopy.

The seven gensets feature seven engine models from 1500-1800 RPM, a power output between 20 and 95 kWm, low noise emissions and optimal fuel economy, Himoinsa said.

A couple of couplings from Transfluid

Industrial transmission equipment manufacturer Transfluid has released two new lines of variable high-speed hydraulic couplings.

The KSL-HS range is designed primarily for medium- to high-power applications, while the KPTB-HS range is designed for medium- to low-power applications. Both ranges are capable of input speeds of 3600 RPM, the company said.

Rather than traditional scoop tube oil volume control, Transfluid’s couplings use flow control. Oil is withdrawn from the tank by an electric feed pump and fed to the driving and driven impellers of the coupling circuit. It is then drained through calibrated orifices on the perimeter of the circuit, returning to the tank by gravity. By varying the feedpump oil flow, the volume of oil between the driving and driven impellers can be changed.

The company is marketing its HS couplings for the power, steel, paper, cement, chemical and petrochemical industries, with applications in boiler feed pumps, fans, blowers, pumps and compressors. They are designed to work in most extreme conditions, Transfluid said.

The units are available in low temperature and explosion-proof versions, and may be configured according to customer needs.

Noja Power unveils new ACR series

Noja Power unveils new ACR series

Electrical switchgear engineers Noja Power have released their 310 series 15- and 27-kV Automatic Circuit Reclosers (ACR).

The ACRs extend the company’s range of electricity distribution grid protection products by complementing the existing 300 series 38-kV ACR. The 310 series replaces older products which were rated at 630 A with units capable of up to 800 A continuous current operation.

The increase in the continuous current rating to 800 A allows utilities to use the ACR in a wider range of electrical network configuration options.

Areva launches automated reactor inspection tool

Areva has developed an automated tool for nuclear reactor vessel inspections.

The Lower Girth Weld Inspection Tool (LGWIT) allows plant personnel to carry out inspections remotely through narrow gaps in the reactor vessel’s internals.

The tool was designed to meet criteria set by the Electric Power Research Institute’s (EPRI) Materials Reliability Program and the US Nuclear Regulatory Commission’s NUREG 1766 regulation. Areva says it has been successfully used to perform several inspections for US utility customers.

Philippe Samama, the firm’s installed base business division executive vice president, said: “Our teams have developed an inspection technology which can be used in all types of pressurized water reactors. By providing safer and more efficient inspections, this tool can support utilities around the world in optimising the long term reliability of their operations.”

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