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Leroy-Somer, Kato Engineering launch D700

Automatic digital voltage regulator designed to meet the challenges of energy production in the digital age, company official says

| | Jul 23, 2018 | 10:29 am
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Angoulême, France, 23 July 2018: Leroy-Somer and Kato Engineering have launched the D700, automatic digital voltage regulator, the companies announced in a Press communiqué. Both companies are part of the Japan-based Nidec Corporation, the communiqué said.


The D700 includes regulator functions, smart grid capabilities and additional options that make it one of the most versatile products on the market, the communiqué said. Along with network synchronisation management, the D700 features multiple regulation modes, including regulation based on the power factor at the point of delivery or at generator output (especially for networks operating in parallel), the communiqué further said. Profile monitoring and various Grid Code regulation specifications can thus potentially be programmed directly into the D700, the communiqué added.

According to Leroy-Somer and Kato Engineering, for the first time, all excitation types are supported up to 25 A in continuous operation (50 A in the event of short circuit). In addition, the D700 can control an external power module that makes it possible to offer static excitation systems up to 1,500 A, the communiqué said. A special double regulation board is also available to ensure total system redundancy, the communiqué further said. The D700 includes multiple patented solutions based on expertise and knowledge drawn from Nidec alternators, the communiqué also said. These functions, such as redundant power bridge, curve functions, simplified load sharing and excitation limits can be used to improve global system security, the communiqué added.

In addition to regulation functions, the D700 also includes many components and options that make it very flexible: a data logger, programmable logic, equalisation and synchronisation, remote regulation, communications bus, current compensation and “black start” capability (without auxiliary power supply), the communiqué said.

Commenting on the product, Jean-François Paillou, Project Manager, said: “We are thrilled with the way D700 has been received.  We have received excellent feedback from our customers and partners and every day we find more new cases where the D700 really has a competitive edge.”

According to Leroy-Somer and Kato Engineering, the D700 was also designed to be integrated in the GenOSys system (Leroy-Somer and Kato Engineering’s recently launched remote power management system). The communiqué said  when integrated into GenOSys, the D700 is able to carry out remote installation monitoring, including a system of alerts and the use of mathematical models for predictive maintenance.


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