frequency variant

frequency variant, Total:125 items.

The international standard classification for "frequency variant" includes: Power stations in general , Aerospace electric equipment and systems , Transformers. Reactors , Electromagnetic compatibility(EMC) .

The Chinese standard classification for "frequency variant" includes: Technical management , Electric power testing technique , Time and Frequency Measurement , Energy equipment for spacecraft , Power semiconductor device and parts , Transformer , Electromagnetic compatibility .

Taiwan Provincial Standard of the People's Republic of China

CNS 8664-1982 Graphic Symbols for Frequencies, Bands, Modulation and Frequency Diagrams

Group Standards of the People's Republic of China

T/QGCML 2040-2023 KM6100 series low power inverter

Military Standard of the People's Republic of China-General Armament Department

GJB 90.4-1986 Three centimeter radar frequency agility system terminology
GJB 3597-1999(XG1-2015) Frequency Agility Time Test Method Modification Sheet 1-2015
GJB 3597-1999 Frequency Agility Time Test Method
GJB 90.1-1986 Three centimeter radar frequency agility system series

Professional Standard - Electron

SJ/T 10139-1991 Detail specification for electronic components--Semiconductor integrated circuits--CC4028 CMOS 4-line to 10-line decoder
SJ/Z 1850-1981 Design for medium and low-duty audio transformers

Professional Standard - Energy and Power Planning

DL/T 911-2016 Frequency Response Analysis on Winding Deformation of Power Transformation
DL/T 911-2004 Frequency Response Analysis on Winding Deformation of Power Transformers

未注明发布机构

NE 37:2010-03 Terminal barcode for frequency converters of variable speed drives

National Metrological Verification Regulations of the People's Republic of China

JJG 181-2005 Verification Regulation of Quartz Crystal Frequency Standards

Professional Standard - Aerospace

QJ 829-1984 Power converter voltage, current and frequency series
QJ 829A-1995 Voltage, Current and Frequency Series for Power Converter

Professional Standard - Machinery

JB/T 8669-1997 Semiconductor Frequency Changing Unit Intended to Be Used in Medium Frequency Induction Heating

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 1094.18-2016 Power transformers - Part 18: Measurement of frequency response
GB/T 17626.28-2006 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Variation of power frequency immunity test

Professional Standard - Aviation

HB 8657-2022 General specification for electric power frequency converters of civil air cr aft

Military Standards (MIL-STD)

MIL MIL-PRF-27/165E-2010 Transformer Audio Frequency
MIL MIL-PRF-27/247D-2008 TRANSFORMERS AND INDUCTORS, (AUDIO, POWER AND HIGH-POWER PULSE), TRANSFORMER, AUDIO FREQUENCY
MIL MIL-PRF-27/362-1985 TRANSFORMERS, AUDIO FREQUENCY, TF5S21ZZ
MIL MIL-PRF-27/361-1985 TRANSFORMERS, AUDIO FREQUENCY, TF5S21ZZ
MIL MIL-T-27/4-1975 TRANSFORMER, AUDIO FREQUENCY, TF4R21AJ002
MIL MIL-PRF-27/173F-2008 TRANSFORMERS, AUDIO FREQUENCY, MICRO-MINIATURE, TF5R21ZZ
MIL MIL-T-27/247C-1993 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), TRANSFORMER, AUDIO FREQUENCY, TF4R21AJ316 (SUPERSEDING MIL-T-27/247B)
MIL MIL-T-27/214B-2012 Transformers and Inductors (Audio, Power and High-Power Pulse), Inductors, Audio Frequency
MIL MIL-T-27/283-1979 TRANSFORMERS, AUDIO FREQUENCY, TF5S21ZZ (NO S/S DOCUMENT)
MIL MIL-T-27/263-1979 TRANSFORMERS, AUDIO FREQUENCY, TF5R21ZZ (NO S/S DOCUMENT)
MIL MIL-PRF-27/290B-2003 TRANSFORMER, AUDIO FREQUENCY (SUPERSEDING MIL-PRF-27/290A)
MIL MIL-T-27/163D-2012 Transformers and Inductors (Audio, Power and High-Power Pulse), Inductors, Audio Frequency, High Q
MIL MIL-T-27/162B-2009 Transformer and Inductors (Audio, Power and High-Power Pulse), Inductors, Audio Frequency, High Q
MIL MIL-T-27/11A-1976 TRANSFORMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/11)
MIL MIL-T-27/9A-1976 TRANSFOMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/9)
MIL MIL-T-27/5A-1976 TRANSFORMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/5)
MIL MIL-PRF-27/103D-1994 TRANSFORMER, AUDIO FREQUENCY, TF5R21ZZ (SUPERSEDING MIL-T-27/103C)
MIL MIL-T-27/8A-1976 TRANSFOMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/8)
MIL MIL-PRF-27/277A-2003 TRANSFORMER, AUDIO FREQUENCY, SUB-MINIATURE (SUPERSEDING MIL-PRF-27/277)
MIL MIL-PRF-27/97C-2003 TRANSFORMERS, AUDIO FREQUENCY, SUB-MINIATURE (SUPERSEDING MIL-PRF-27/97B)
MIL MIL-PRF-27/2F-1990 TRANSFORMER, AUDIO FREQUENCY, TF4R21YY AND TF4S21YY (SUPERSEDING MIL-T-27/2E)
MIL MIL-T-27/142C-1992 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, AUDIO FREQUENCY, TF5R20ZZ (SUPERSEDING MIL-T-27/142B)
MIL MIL-PRF-27/205D-2012 Transformers and Inductors (Audio, Power, and High-Power Pulse), Inductors, Audio Frequency, High Q
MIL MIL-PRF-27/172D-1989 TRANSFORMERS, AUDIO FREQUENCY, SUB-MINIATURE, TF5R21ZZ (SUPERSEDING MIL-T-27/172C)
MIL MIL-PRF-27/240C-2013 Transformers and Inductors (Audio, Power and High-Power Pulse) Inductors, Audio Frequency, High Q
MIL MIL-PRF-27/241A-1980 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, AUDIO FREQUENCY, HIGH Q, TF5R20ZZ (SUPERSEDING MIL-T-27/241)
MIL MIL-T-27/162A-1992 TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE), INDUCTORS, AUDIO FREQUENCY, HIGH Q, TF4S02YY (SUPERSEDING MIL-T-27/162)
MIL MIL-PRF-27/240A-1980 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, AUDIO FREQUENCY, HIGH Q, TF5R20ZZ (SUPERSEDING MIL-T-27/240)
MIL MIL-PRF-27/241B-2010 Transformers and Inductors (Audio, Power and High-Power Pulse) Inductors, Audio Frequency, High Q
MIL MIL-T-27/161A-1980 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), INDUCTORS, AUDIO FREQUENCY, HIGH Q, TF5R20ZZ (SUPERSEDING MIL-T-27/161)
MIL MIL-PRF-27/205B-1993 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), INDUCTORS, AUDIO FREQUENCY, HIGH Q, TF4R20YY (SUPERSEDING MIL-T-27/205A)
MIL MIL-PRF-27/277-1979 TRANSFORMER, AUDIO FREQUENCY, SUB-MINIATURE, TFSR21ZZ (S/S BY MIL-PRF-27/277A)
MIL MIL-T-27/175C-2012 Transformers and Inductors (Audio, Power and High Power Pulse) Inductors, Audio Frequency, High Q
MIL MIL-PRF-27/240B-2011 Transformers and Inductors (Audio, Power and High-Power Pulse) Inductors, Audio Frequency, High Q
MIL MIL-T-27/126C-1993 TRANSFORMER, AUDIO FREQUENCY, TF5S21ZZ (SUPERSEDING MIL-T-27/126B) (NO S/S DOCUMENT)
MIL MIL-T-27/6A-1976 TRANSFORMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/6) (NO S/S DOCUMENT)
MIL MIL-T-27/7A-1976 TRANSFOMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/7) (NO S/S DOCUMENT)
MIL MIL-T-27/10A-1976 TRANSFOMER, AUDIO FREQUENCY, TF4R21AJ (SUPERSEDING MIL-T-27/10) (NO S/S DOCUMENT)
MIL MIL-T-27/214-1978 TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE) INDUCTORS, AUDIO FREQUENCY, TF5S20ZZ (S/S BY MIL-T-27/214A)
MIL MIL-PRF-27/290A-1980 TRANSFORMER, AUDIO FREQUENCY, TF5S21ZZ (SUPERSEDING MIL-T-27/290) (S/S BY MIL-PRF-27/290B)
MIL MIL-PRF-27/112A-2009 Transformers and Inductors, (Audio, Power and High-Power Pulse) Inductor, Audio
MIL MIL-A-24215/11-1975 ATTENUATOR, VARIABLE (COAXIAL), FREQUENCY RANGE DC TO 1 MHZ (LOW FREQUENCY) (NO S/S DOCUMENT)

Defense Logistics Agency

DLA MIL-PRF-27/165 E-2010 TRANSFORMER AUDIO FREQUENCY
DLA MIL-PRF-27/247 D-2008 TRANSFORMERS AND INDUCTORS, (AUDIO, POWER AND HIGH-POWER PULSE), TRANSFORMER, AUDIO FREQUENCY
DLA MIL-PRF-27/112 A-2009 TRANSFORMERS AND INDUCTORS, (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTOR, AUDIO
DLA MIL-PRF-27/111 A-2009 TRANSFORMERS AND INDUCTORS, (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTOR, AUDIO
DLA MIL-PRF-27/240 B-2011 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, AUDIO FREQUENCY, HIGH Q
DLA MIL-T-27/162 B-2009 TRANSFORMER AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), INDUCTORS, AUDIO FREQUENCY, HIGH Q
DLA MIL-T-27/175 C-2012 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH POWER PULSE) INDUCTORS, AUDIO FREQUENCY, HIGH Q
DLA MIL-PRF-27/240 C-2013 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, AUDIO FREQUENCY, HIGH Q
DLA MIL-T-27/163 C VALID NOTICE 1-2001 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), INDUCTORS, AUDIO FREQUENCY, HIGH Q, TF5R20ZZ
DLA MIL-PRF-27/289 B-2011 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, POWER
DLA MIL-PRF-27/288 C-2010 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, POWER
DLA MIL-PRF-27/286 C-2010 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, POWER
DLA MIL-T-27/261 B-2009 TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE) INDUCTORS, POWER (100 VA)
DLA MIL-T-27/86 A-2008 TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE), INDUCTOR, POWER
DLA MIL-PRF-27/191 A-2008 TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), INDUCTOR, POWER
DLA MIL-DTL-24215/8 A NOTICE 2-2012 ATTENUATORS, VARIABLE COAXIAL, FREQUENCY RANGE DC TO 2 GHZ (SMA)
DLA MIL-T-27/89 B-2008 TRANSFORMERS AND INDUCTORS (AUDIO, POWER, AND HIGH-POWER PULSE), INDUCTOR, POWER

Gosstandart of Russia

GOST 16312-1997 Electric motor frequency convertors with rated power up to 200 kW and frequency to 20000 Hz. Test methods
GOST 16313-1997 Electric motor frequency convertors with rated power up to 200 kW and frequency to 20000 Hz. General specifications
GOST 24607-1988 Semiconductor frequency converters. General technical requirements
GOST 20962-1975 Mean frequency static transducer for electrothermy. Basic parameters
GOST 8.392-1980 State system for ensuring the uniformity of measurements. Low power SHF wattmeters and their primary measuring transformers of frequency range 0,03-78.33 GHz. Verification means and methods
GOST 19656.4-1974 Semiconductor UHF mixer diodes. Measurement methods of conversion losses

VE-FONDONORMA

COVENIN 729-1974 Medium frequency transformers and radio frequency transformers

American National Standards Institute （ANSI)

ANSI/UL 458-2013 Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts

International Telecommunication Union (ITU)

ITU-R SM.1045-1994 Frequency Tolerance of Transmitters

United States Navy

NAVY MIL-C-82137 (2)-1970 CONVERTER-BLOWER: FREQUENCY SHIFT
NAVY MIL-C-82137-1967 CONVERTER-BLOWER: FREQUENCY SHIFT

British Standards Institution (BSI)

BS EN 60749-12:2002 Semiconductor devices - Mechanical and climatic test methods - Vibration, variable frequency
BS EN IEC 60749-12:2018 Semiconductor devices. Mechanical and climatic test methods. Vibration, variable frequency
BS EN 60076-18:2012 Power transformers. Measurement of frequency response
BS PD IEC TR 63401-3:2023 Dynamic characteristics of inverter-based resources in bulk power systems-Fast frequency response and frequency ride-through from inverter-based resources during severe frequency disturbances
PD IEC TR 63401-3:2023 Dynamic characteristics of inverter-based resources in bulk power systems. Fast frequency response and frequency ride-through from inverter-based resources during severe frequency disturbances

International Electrotechnical Commission (IEC)

IEC 60989:1991 Separating transformers, autotransformers, variable transformers and reactors
IEC PAS 62187:2000 Variable frequency vibration test method
IEC 60747-16-3:2002 Semiconductor devices - Part 16-3: Microwave integrated circuits; Frequency converters
IEC 60749-12:2002/COR1:2003 Semiconductor devices - Mechanical and climatic test methods - Part 12: Vibration, variable frequency
IEC 60749-12:2002 Semiconductor devices - Mechanical and climatic test methods - Part 12: Vibration, variable frequency
IEC 60076-18:2012 Power transformers - Part 18: Measurement of frequency response
IEC TR 63401-3:2023 Dynamic characteristics of inverter-based resources in bulk power systems - Part 3: Fast frequency response and frequency ride-through from inverter-based resources during severe frequency disturbances

Korean Agency for Technology and Standards (KATS)

KS C IEC 60989:2005 Separating transformers, autotransformers, variable transformers and reactors
KS C 4290-2007(2017) A.C. inverter for low voltage adjustable frequency
KS C 4290-2007(2022) A.C. inverter for low voltage adjustable frequency
KS C IEC 60749-12:2004 Semiconductor devices-Mechanical and climatictest methods-Part 12:Vibration, variable frequency

German Institute for Standardization

DIN EN 12483:1999 Liquid pumps - Pump units with frequency inverters - Guarantee and compatibility tests; German version EN 12483:1999

(U.S.) Joint Electron Device Engineering Council Soild State Technology Association

JEDEC JESD10-1976 Low Frequency Power Transistors

Cooling Technology Institute

CTI STD-151-2002 Variable Frequency Drive Application Guidelines for Cooling Towers

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)

ASHRAE ST-16-016-2016 Simulated Energy-Efficient Voltage Frequency Ratios of Variable-Frequency Drives on Induction Motors

Association for Electrical, Electronic & Information Technologies (VDE)

VDE 0532-22 DIN VDE 0532-22-1982*DIN 57532-22:1982 Transformers and reactors for audio-frequencies in power supply systems
VDE 0126-12 E*DIN EN 50530:2009-05 Overall efficiency of photovoltaic inverters

Association Francaise de Normalisation

NF C96-022-12:2002 Semiconductor devices - Mechanical and climatic test methods - Part 12 : vibration, variable frequency.
NF EN IEC 60749-12:2018 Dispositifs à semiconducteurs - Méthodes d'essais mécaniques et climatiques - Partie 12 : vibrations, fréquences variables
NF EN 60076-18:2012 Power transformers - Part 18: measurement of frequency response
NF H00-081:1993 Packaging. Complete, filled transport packages. Vibration tests using a sinusoidal variable frequency.
NF C52-176-18*NF EN 60076-18:2012 Power transformers - Part 18 : measurement of frequency response

IET - Institution of Engineering and Technology

FERR MICROW FREQ-1987 Ferrites at Microwave Frequencies

Bureau of Indian Standards

IS 2026-18-2018 Power Transformers Part 18 Measurement of Frequency Response

ESDU - Engineering Sciences Data Unit

ESDU 74025 B-2011 Natural frequencies of box structures
ESDU 74025 B-1992 Natural frequencies of box structures.

Danish Standards Foundation

DANSK DS/IEC TR 63401-3:2024 Dynamic characteristics of inverter-based resources in bulk power systems – Part 3: Fast frequency response and frequency ride-through from inverter-based resources during severe frequency disturbances
DS/EN 60076-18:2013 Power transformers - Part 18: Measurement of frequency response

IETF - Internet Engineering Task Force

RFC 6562-2012 Guidelines for the Use of Variable Bit Rate Audio with Secure RTP

Spanish Association for Standardization (UNE)

AENOR UNE-EN 60076-18:2013 Power transformers - Part 18: Measurement of frequency response

Standard Association of Australia （SAA）

AS/NZS IEC 60076.18:2025 Power transformers, Part 18: Measurement of frequency response

GCC Standardization Organization

GSO IEC 60076-18:2013 Power transformers - Part 18: Measurement of frequency response