NDLI: Design of a 300-kW Calorimeter for Electrical Motor Loss Measurement

Content Provider	IEEE Xplore Digital Library
Author	Wenping Cao Xiaoyan Huang French, I.
Copyright Year	1963
Abstract	This paper describes the design of a calorimeter that is suitable for measuring power losses in electrical motors of up to 300 kW (402 hp). Refined from the two previous generations, this calorimeter is of air-cooled open type. Accurate control of the air flow rate and temperature gradients between the inside and outside walls of the calorimeter ensures that a repeatable and durable measurement environment is achieved. During the design stage, attention is focused on heat leakage prevention and reduction in the length of the testing procedures. Heat leakage is mitigated by appropriate insulation and active temperature control over all walls and connection ports. In selecting the materials for the structure, lightweight aluminum and polystyrene are used in sandwich form to reduce the thermal time constant and, thus, the operational time for the calorimeter to reach its equilibrium. After the calorimeter is commissioned, further reduction in the lengthy test procedures is realized by boosting the initial power loss value of the motor under test. That is, some additional resistive heaters are installed inside the calorimeter and operate in conjunction with the test motor. This push-pull technique can guarantee a constant combined power loss during operation, which is assumed to be the final value of motor loss. By predefining a suitable motor loss and a tolerance, it is possible to dynamically control the input power to the dc heaters from the start and to shut down the heaters once the motor loss value enters the tolerance selected. Calibration results confirm the effectiveness and accuracy of the calorimeter.
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	2365
Ending Page	2367
Page Count	3
File Size	206387
File Format	PDF
ISSN	00189456
Volume Number	58
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Loss measurement Electric variables measurement Testing Temperature control Cogeneration DC motors Power measurement Fluid flow measurement Insulation Aluminum power loss Calorimetry electric machines heat transfer loss measurement
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Development of a High-Precision Calorimeter for Measuring Power Loss in Electrical Machines

Double chamber calorimeter (DCC): a new approach to measure induction motor harmonic losses

The power losses calculation technique of electrical machines using the heat transfer theory

Calorimetry for Power Electronics

Calorimetric concept for measurement of power losses up to 2 kW in electric drives

Design and implementation of a calorimetric measurement facility for determining losses in electrical machines

Design and implementation of a calorimetric measurement facility for determining losses in electrical machines

Book Reviews [8 Reviews]

Scalable open- and balance-type calorimeter for measuring power electronics and motors

Design of a 300-kW Calorimeter for Electrical Motor Loss Measurement

Similar Documents

Development of a High-Precision Calorimeter for Measuring Power Loss in Electrical Machines

Double chamber calorimeter (DCC): a new approach to measure induction motor harmonic losses

The power losses calculation technique of electrical machines using the heat transfer theory

Calorimetry for Power Electronics

Calorimetric concept for measurement of power losses up to 2 kW in electric drives

Design and implementation of a calorimetric measurement facility for determining losses in electrical machines

Design and implementation of a calorimetric measurement facility for determining losses in electrical machines

Book Reviews [8 Reviews]

Scalable open- and balance-type calorimeter for measuring power electronics and motors

Design of a 300-kW Calorimeter for Electrical Motor Loss Measurement