reactor coolant pump speed sensors - drs … coolant pump speed sensors. reactor coolant pump speed...
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Magnetic sensor that self generates an AC signal output with frequency and or amplitude proportional to pump rotational speed. The ferromagnetic pole pieces that are on a cylinder attached to the pump rotor produce a pulse output when they pass by the sensor that is installed in the well.
COMMERCIAL SENSORS AND TRANSMITTERSDRS-CCI has a long history of providing Instrumentation and Control equipment for numerous applications. DRS-CCI has designed, qualified and manufactured components and systems for some of the most critical control applications around the world. DRS-CCI sensors and transmitters are designed and qualified to operate in extremely adverse environmental conditions encountered in both primary and secondary plant applications. DRS-CCI sensors and transmitters are highly accurate and will operate continuously for decades in critical applications. Longer life corresponds directly to lower overall operating costs through the elimination or reduction of periodic transmitter replacement due to high temperature or radiation degradation over the life of the plant.
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DESIGN OR OBSOLESCENCE PROBLEMS
HIGHLIGHTS• The function of the pump speed
sensor is to produce an AC signal whose output is linearly proportional to pump rotation speed
• All stainless steel construction
• Safety related/class 1E
• IEEE 323 and 344
• Preamplifier signal conditioner is also available
REACTOR COOLANT PUMP SPEED SENSORS
REACTOR COOLANT PUMP SPEED SENSOR
OPERATING ENVIRONMENT
Temperature Up to 311°F (155ºC) at sensor probe
Ambient temperature 158°F (70ºC)
Relative humidity 0% to 100%
Seismic classification IEEE 344
Safety classification IEEE 323 Class 1E
EMI/RFI classification MIL-STD-461E per EPRI TR-102323
Environmental classification IEEE 323 ELECTRICAL CHARACTERISTICS
Range 1,800 RPM
Passive/self generating
No external excitation required
AC voltage output
Frequency and/or amplitude of AC output proportional to pump rotational speed
Apr or Case#
Specifications subject to change without notice.Copyright © DRS Consolidated Controls Inc. 2011. All Rights Reserved.
DRS Consolidated Controls, Inc.21 South Street, Danbury, CT 06810 Tel. 203.798.3030 www.drs-cci.com(ISO 9001: Certified Company)
DRS APR. Information included herein has been determined to NOT contain any controlled technology as defined under either the International Traffic in Arms Regulations (ITAR) or the Export Administration Regulations (EAR). This document is not subject to U.S. Export Controls. Technical elaboration is not permitted for release without prior review and separate release.
DRS CC V3 09/04/12
PHYSICAL CHARACTERISTICS
Sensor probe dimensions 2.1 L x 0.312 D inches (0.79 L x D 5.33 cm)
Stainless steel construction (no aluminum)
Flexible probe extension length to suit sensor well
Materials selected for in-containment use
Will provide output with up to 0.300 in. (0.762 cm) gap between sensor and rotor pole
¼ NPT fitting attachment to well