Sepam series 20 Sepam series 40 - POWERLAB

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Contents Presentation 2 More solutions 2 Flexible architecture 5 User-machine interface 6 Selection table 8 Sepam series 20 8 Sepam series 40 9 Metering 10 Description 10 General settings and characteristics 11 Protection 12 Description 12 Setting ranges 15 Connection diagrams 18 Sepam series 20 18 Sepam series 40 19 Phase current inputs 20 Residual current input 21 Sepam series 20 voltage inputs 22 Sepam series 40 voltage inputs 23 Control and monitoring 24 Description 24 Logic inputs and outputs 25 Logic input / output assignment for Sepam series 20 26 Logic input / output assignment for Sepam series 40 27 Annunciation 28 Customization 29 Communication 30 Description and characteristics 30 Optional remote modules 32 Description 32 Connections 33 Sensors 34 LPCT type current sensors 34 Core balance CTs 35 Characteristics 36 Size and weight 36 Electrical characteristics 38 Environmental characteristics 39 Order form 41 Breakdown of base units into basic references 41 Order form 42 1
Presentation More solutions MT11017 MT11017 The Sepam series 20 and Sepam series 40 families of protection and metering units are designed for the operation of machines and electrical distribution networks of industrial installations and utility substations for all levels of voltage. They consist of complete, simple and reliable solutions, suited to the following applications: b protection of substations (incomers and feeders) b protection of transformers b protection of motors b protection of generators b protection of busbars. Sepam series 20 Suitable for common applications, Sepam series 20 offers simple solutions based on current or voltage metering. b protection of substation incomers and feeders against phase-to-phase and phase-to-earth short-circuits v 16 IDMT tripping curves v adjustable timer hold to detect recurrent faults v switching of groups of settings to adapt to changes in the network configuration b protection of overhead lines with built-in recloser function b protection of transformers against overloads, with ambient temperaturecompensated RMS thermal overload protection with 2 groups of settings for different ventilation operating rates b protection of motors v against overloads, with ambient temperature-compensated RMS thermal overload protection with a cold tripping curve that can be adjusted to fit motor characteristics v against internal faults and load-related faults v with motor starting condition monitoring and machine operation assistance. The Sepam series 20 B21 and B22 voltage units are suitable for the following situations: b monitoring of network voltage and frequency b loss of mains detection by rate of change of frequency protection for installations with local power generation. Sepam series 40 Sepam series 40, with its current and voltage metering capabilities, offers highperforming solutions for more demanding applications. Sepam series 40 units perform the following funcitons in addition to those performed by Sepam series 20: b protection of closed ring networks or networks with parallel incomers, by directional protection b directional earth fault protection suitable for all earthing systems: impedant, isolated or compensated neutral b protection of networks with variable configurations requiring the switching of groups of settings and logic discrimination b all the necessary electrical measurements: phase and residual currents, phase-toneutral, phase-to-phase and residual voltage, frequency, power and energy, ... b comprehensive network diagnosis assistance: 20 seconds of disturbance recording, detailed history of the last 200 alarms, storage of the last 5 tripping contexts b adaptation of control functions by a logical equation editor b customization of alarm messages to fit each application, and/or in the user’s language. Sepam selection guide Selection Series 20 Series 40 criteria Measurements I U U I and U I and U I and U Specific protection functions available Applications Type Loss of mains (ROCOF) Directional earth fault Directional earth fault and phase overcurrent Substation S20 S40 S41 S42 Transformer T20 T40 T42 Motor M20 M41 Generator G40 Busbar B21 B22 Example: For motor protection and current and voltage measurements, your solution is the M41 type Sepam. 2
Page 1: Electrical network protection Sepam
Page 5 and 6: Presentation More solutions More mo
Page 7 and 8: Presentation User-machine interface
Page 9 and 10: Selection table Sepam series 20 Fun
Page 11 and 12: Metering Description Metering funct
Page 13 and 14: Protection Description Current prot
Page 15 and 16: Protection Description Voltage prot
Page 17 and 18: Protection Setting ranges Functions
Page 19 and 20: Connection diagrams Sepam series 20
Page 21 and 22: Connection diagrams Phase current i
Page 23 and 24: Connection diagrams Sepam series 20
Page 25 and 26: Control and monitoring Description
Page 27 and 28: Control and monitoring Logic input
Page 29 and 30: Control and monitoring Annunciation
Page 31 and 32: Communication Description and chara
Page 33 and 34: Optional remote modules Description
Page 35 and 36: Sensors LPCT type current sensors M
Page 37 and 38: Characteristics Size and weight Bas
Page 39 and 40: Characteristics Electrical characte
Page 42 and 43: Order form Breakdown of base units
Page 44 and 45: Order form Order form Sepam series
Page 46: Schneider Electric Industries SAS P

Sepam series 20 Sepam series 40 - POWERLAB

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