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VACUUMSCHMELZE Once Again Presents Sensor Technology at PCIM 2014 in Nuremberg

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VACUUMSCHMELZE GmbH & Co.
2935 Dolphin Dr. Ste. 102
Elizabethtown, KY, 42701
USA



Press release date: March 31, 2014

Hanau / Frankfurt — PCIM, the leading international trade show for power electronics, intelligent motion, renewable energies and energy management, will be held once again in Nuremberg from 20th to 22nd May 2014. This year, the Cores and Components division of VACUUMSCHMELZE GmbH Co. KG (Hanau) will again present its portfolio of sensors for applications in a range of industrial fields at Stand 119, Hall 7.

VACUUMSCHMELZE current sensors, unlike conventional Hall-effect sensors, use a VAC-developed magnetic field probe of cobalt-based amorphous alloy as a zero-field detector, which offers distinct benefits such as minimal offset current and negligible long-term drift. Since their offset current is mainly temperature-independent, the current sensors deliver reliable and ultra-precise readings in a wide variety of operating conditions.

The new 4646-X7xx range of current sensors for pcb mounting are largely identical to VAC's highly successful ultra-compact 4646-X6xx range, but feature higher clearance and creepage distances that enable higher system and operating voltages to be used (600 V / 1020 V as per EN 61800). Current density is reduced by the use of four current bars instead of three, also allowing users more options for parallel and series connection, in order to tailor measurement ranges to their specific application.

AC-DC-sensitive differential current sensors, or DI sensors, form the core of residual current monitoring units (RCMUs) compliant with the EN 62109 standard for transformerless solar inverters. The sensors measure residual current to a precision level of 1.5% of the nominal residual current of 300 mA and generate an output voltage proportional to the differential current. The AC/DC-sensitive differential current sensors offer a range of additional functions including sensor core demagnetization, which can be triggered by the supply voltage, or as required. VAC will present two new types with integrated primary conductors: the 4646-X975 sensor with two conductors for single-phase systems, and the 4646-X976 with four conductors for multi-phase systems. Both feature a test current winding integrated into the sensor housing.

As market trends continue to move towards increasingly high-power applications in wind converters, central solar inverters and high power drives, demand for devices capable of detecting increasingly high current levels is growing. In response to this need, VAC has advanced the superior functional principle of its current sensor design and developed high-current sensors for currents of 1000 Arms with a measuring range of up to 2500 A. Compared to existing devices, VAC's solution offers the hallmark advantages of VAC sensors such as high measurement precision and stability, broad measurement range and outstanding dynamic properties, as well as low sensor power consumption thanks to a PWM driver for the compensation current. The wide primary conductor opening enhances flexibility for the user when connecting the primary conductor.

VACUUMSCHMELZE GmbH & Co. KG
VACUUMSCHMELZE (VAC) with 4100 employees worldwide, thereof 1,450 employees in Hanau, designs, produces and markets advanced materials, primarily magnetic but also with other physical properties, and related products. In 1914 the first vacuum furnace laid the foundation for today's VACUUMSCHMELZE. Industrial vacuum melting techniques for alloys have been in operation since 1923.

VAC Group today achieves annual sales exceeding 400 million euros in over 50 countries and is the holder of around 800 patents, placing it among the world's most highly innovative developers of advanced industrial materials.

VAC's portfolio comprises a broad array of semi-finished products and parts with superior magnetic and physical properties, inductive components for electronics, magnets and magnetic systems for use in a wide variety of fields and industries from watch-making to medical technology, renewable energies, shipbuilding, installation, and the automotive and aviation industries. VAC's custom solutions are developed in close collaboration with the customer, reflecting the company's expertise in materials and state-of-the-art production technology.

Find out more at www.vacuumschmelze.com
« = registered trademark of VACUUMSCHMELZE GmbH & Co. KG

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