Metglas

United States

SATURABLE REACTORS Saturable reactors utilize the large change between unsaturated and saturated permeabilities of their cores to delay current for a preset period of time. Similarly, once saturated in the forward direction, they act as a diode temporarily blocking current in the reverse direction. (Figure 1) MAGNETIC SWITCH PROTECTION (MSP) MSP devices made with Metglas®cores have dramatically enhanced the reliability and overall lifetime of pulse power systems. By using a saturable reactor in series with either a semiconductor or thyratron switch, the circuit designer can reduce losses in the switch and extend its life. The saturable reactor is designed to hold-off current until the switch becomes fully conductive (Figure 2). This delay reduces the overlap between current and voltage in the switch, thereby reducing power absorber in the switch. MSP also offers other advantages. Higher didt's to the load are safely achieved by waiting for full conductivity in semiconductor switches. The diode-like characteristic of a saturated reactor provides time for switch recovery

Distribution and power transformers Motors High frequency inductors Current transformers Devices requiring high permeability and low loss at low frequencies BENEFITS: Extremely low core loss, 40% of the core loss of grade M3 electrical steel (core loss at 50 Hz is approximately 80% of 60 Hz values). This is for finished cores. High permeability

More than ever, electric utilities and industries today are searching for technologies that will reduce their operating costs and improve energy savings throughout their systems. New transmission and distribution (T&D) technologies are now available to help utilities meet these goals. With Metglas® amorphous metal distribution transformers (AMDTs) -- with up to 80% lower core loss than conventional transformers -- Metglas, Inc. is helping utilities worldwide to achieve their efficiency objectives. When you consider that 10% of all electricity generated by utilities is lost in the transmission & distribution process, the potential savings through reductions in core loss can be significant. Ultra-efficient transformer cores made with Metglas® amorphous metal alloy make lower core losses possible. Amorphous metal distribution transformers are key to improving utility economics and enhancing energy conservation efforts worldwide.