Read Anywhere and on Any Device!

Subscribe to Read | $0.00

Join today and start reading your favorite books for Free!

Create Free Account

Quick and Easy Sign Up!

It takes less then 1 minute to sign up, then you can enjoy Unlimited eBooks.

Sign Up Browse

Popular Genres

Read Anywhere and on Any Device!

  • Download on iOS
  • Download on Android
  • Download on iOS

IEC 60947-8 Ed. 1.0 b:2003, Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines

IEC 60947-8 Ed. 1.0 b:2003, Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines

IEC TC/SC 17B
0/5 ( ratings)
Read Download
Specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to IEC 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient thermistor detector having particular characteristics, and its associated control unit. The PT100 detectors are covered by IEC 60751, where the resistor values are given according to the temperatures of the detector. The present rules lay down the characteristics of association of this particular positive temperature coefficient thermistor detector and its associated control unit , when they are used in thermal protection systems. NOTE It is not possible to specify all the requirements for the operating characteristics of a control unit, as they are dependent on some aspects of the thermal detectors. Some aspects of the requirements of the thermal protector system can only be specified when account is taken of the characteristics of the rotating machine to be protected and the method of installation of the detector within the machine. For these reasons, for each characteristic it is necessary to specify who is responsible for stating the required values and who is responsible for compliance with the requirement and for carrying out any confirmatory test.
Language
English
Pages
68
Format
Paperback
Release
August 19, 2007

IEC 60947-8 Ed. 1.0 b:2003, Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines

IEC TC/SC 17B
0/5 ( ratings)
Read Download
Specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to IEC 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient thermistor detector having particular characteristics, and its associated control unit. The PT100 detectors are covered by IEC 60751, where the resistor values are given according to the temperatures of the detector. The present rules lay down the characteristics of association of this particular positive temperature coefficient thermistor detector and its associated control unit , when they are used in thermal protection systems. NOTE It is not possible to specify all the requirements for the operating characteristics of a control unit, as they are dependent on some aspects of the thermal detectors. Some aspects of the requirements of the thermal protector system can only be specified when account is taken of the characteristics of the rotating machine to be protected and the method of installation of the detector within the machine. For these reasons, for each characteristic it is necessary to specify who is responsible for stating the required values and who is responsible for compliance with the requirement and for carrying out any confirmatory test.
Language
English
Pages
68
Format
Paperback
Release
August 19, 2007

More books from IEC TC/SC 17B

IEC 60947-5-5 Ed. 1.1 b:2005, Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function

0/5 ( ratings)

IEC 60947-7-2 Ed. 2.0 b:2002, Low-voltage switchgear and controlgear - Part 7-2: Ancillary equipment - Protective conductor terminal blocks for copper conductors

0/5 ( ratings)

IEC 60947-5-6 Ed. 1.0 b:1999, Low-voltage switchgear and controlgear - Part 5-6: Control circuit devices and switching elements - DC interface for proximity sensors and switching amplifiers (NAMUR)

0/5 ( ratings)

IEC 60947-5-4 Ed. 2.0 b:2002, Low-voltage switchgear and controlgear - Part 5-4: Control circuit devices and switching elements - Method of assessing ... of low-energy contacts - Special tests

0/5 ( ratings)

IEC 60947-7-3 Ed. 1.0 b:2002, Low-voltage switchgear and controlgear - Part 7-3: Ancillary equipment - Safety requirements for fuse terminal blocks

0/5 ( ratings)

IEC 60999-2 Ed. 2.0 b:2003, Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - ... above 35 mm2 up to 300 mm2 (included)

0/5 ( ratings)

IEC 60947-5-7 Ed. 1.0 b:2003, Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching elements - Requirements for proximity devices with analogue output

0/5 ( ratings)

IEC 60947-3 Ed. 2.2 b:2005, Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units

0/5 ( ratings)

IEC 60947-4-2 Ed. 2.1 b:2002, Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters

0/5 ( ratings)

IEC 62026-2 Ed. 1.0 b:2000, Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 2: Actuator sensor interface (AS-i)

0/5 ( ratings)

IEC 60947-5-3 Ed. 1.1 b:2005, Low-voltage switchgear and controlgear - Part 5-3: Control circuit devices and switching elements - Requirements for ... behaviour under fault conditions (PDF)

0/5 ( ratings)

Rate this book!

Write a review?

loader