Inquiry (采购产品): Solar Turbine Overspeed Monitor Looking for a Solar OEM Part circa 1975 overspeed relay. This was used with a 250KVA Turbine. The assy number 919406C91 Appears to be over under speed unit. Blue aluminum encased unit with 13 pin mil twist on connector. 12 pins used of 13. Operates on 28 volts dc, sig in, meter out,plus six pins used for 2 sets of form C dry contacts. This unit also has three adjustment pot's for calibration. I assume 1 for under volt 1 for overvoltage and a thired I dont know. either a reference level adjust of maybe a time delay for the under frequency. This unit picks up signal from magnetic sensor counting pulses off gearteeth. Please advise if you have any original equipment, calibratin procedures, schematics. etc. Phil Sterling 858-831-0864 sterlingphilip@aol.com **** Hidden Message ***** Philip Sterling 10347 Ridgewater Lane San Diego,, CA 92131 USA Company: Sterling Assoc. Title: Critical Systems Consultant Phone: 858 831 0864 Fax: 858- 621-4996 E-mail: sterlingphilip@aol.com **** Hidden Message ***** sterlingphilip@aol.com
