Newton Derby is a long established manufacturer of exciters, generators and associated products.
They are a main supplier of special Exciter Machines to the world’s major manufacturers of large Synchronous Generators and Motors, and produce various forms of Exciter Machines depending on the individual requirements of our customers.
Newton Derby prides itself on the quality of its design and development skills, enabling the company to offer special equipment for the most demanding applications, in addition to its established product range. Exciters are usually provided as Stator/Rotor units for mounting within the enclosure of the main generator/motor.
Newton Derby offer a full design service and produce bespoke designs for most customers. However in some cases, they offer a build-to-print service manufacturing to the customer’s design and drawing package.
In their simplest form, exciters are produced as basic stator/rotor units but a wide range of optional extras are available. Some of our customers opt for a fully comprehensive service where the Exciter Machine is supplied as a self-contained machine, incorporating a variety of optional equipment and features including:
The rotating rectifier with surge protection is one of many available options. Rotating rectifiers are produced with ceiling ratings in excess of 2000 amps DC. The rectifier bridge is also protected against overvoltage spikes by a Voltage Dependent resistor and suppressor assembly.
All diodes are mounted and clamped to withstand the rotational forces and are rated for the continuous and ceiling output power required by the main generator field system. Balancing slots are an optional feature of rotating rectifier units.
Newton Derby’s sales and design team are ready and able to assist with your specific requirements for quality assured products in accordance with Newton Derby’s ISO 9001 Quality approval.
Permanent Magnet Pilot Exciters
A PMG can be incorporated into the Exciter Machine if required by the customer.