Summation transformers

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against direct indirect contact protection via safety extralow voltage residual current device overcurrent protective device summation current transformer autotransformer safety measures the tn tt it network measuring the earthing resistance earth electrode this system enables experiments to be performed the fol

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9632 j b i b b transformer panel b b basic ralning system transformers singlephase threephase operation b b circuit breakers ail loads resistive inductrve capaci tive are integrated the panel b b the following experiments can be performed this training system b b notoad voltage b b transformation

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transformers 302126200 load unit na highpressure lamp 302120100 fluorescent lamp base without starter 302124100 conventional transformer 230 v 115 v 60 w 302120200 fluorescent lamp base starter tube 18 w 302124200 electronic transformer 20 70 w 302120300 fluorescent lamp base starter tube 36 w 302125100

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circuit transformers electronics transformers diodes transistors thyristors operational amplifiers 0 b e b o basic electric panel article no 510020530 b b b b b ii b b b b u b analog multimeter article no 590100002 s ra 51 r b article no b 510020530 basic electric panel 590100001 digital multimeter

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intercom point article no 530050220 article no panels 530040220 530050220 door intercom point power supply unit door opener indoor intercom point 530042000 530048001 connection set the building intercom system manual cd article no training boxes 302130100 bell transformer 230 v 8 v 302133100 buzzer 8 v ac

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345 IN THE LINE OF POWER B G G 1 B G G 1 07 B G G 1 07 Technical adaptations possible Low Voltage Current Transformers Technical data Wound Primary Current Transformers 5 ? 200 A, VDE 0414 T44-1 / IEC/EN 60044-1 Low Voltage Current Transformers Technical data Summation Current

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282 Tube Unit Current Transformer, series PSR 301 Primary wounds current transformer, series PSW 307 Summation current transformer, series PSS 310 Window Type Current Transformers, PTB approved 312 Current Transformer Set for NH Fuse-Switches, vertical design, size 1-3, series NTSL and R

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310 IN THE LINE OF POWER Technical adaptations possible ? Recommended retail price plus VAT ? Date: 01.02.2011 For more information see page 336 Low Voltage Current Transformers PSS 2 Summation Current Transformer for 2 circuits, accuracy class 0,5 Primary current in Amps Secondary

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311 IN THE LINE OF POWER Technical adaptations possible ? Recommended retail price plus VAT ? Date: 01.02.2011 For more information see page 336 Low Voltage Current Transformers PGSU Summation Current Transformer for 3-10 circuits, accuracy class 0,5 Primary current in Amps Secondary

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337 IN THE LINE OF POWER Technical adaptations possible Low Voltage Current Transformers Technical data Technical Data acc. to VDE 0414 T44-1 & IEC/EN 600044-1 Primary rated current I1N Window Type CTs 40 A ? 6000 A Primary Wounded CTs 1 A ? 200 A Tube Unit Current Transformer 50 A ? 1000

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, to implement ground-fault monitoring for smaller ground fault currents using a summation current transformer. 1 input for connecting a summation current transformer 3UL22, up to 1 ground-fault module can be connected per basic unit 2 Note: For related summation current transformers for rated fault

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additional intermediate terminals. The infeed system for 3RA6 compact feeders is designed for summation currents up to 100 A with a maximum conductor cross-section of up to 70 mm² on the feeder terminal block. The infeed system for 3RA6 compact feeders enables far less wiring in the main circuit and

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). If (+) is connected to Uaux + and (NC) to Uaux - , the outputs are not short-circuit and overload proof; if Uaux - is connected to (0), the outputs are overload and shortcircuit proof (maximum summation current 200 mA). In this case the module does not respond even to invoking by a master when the switching outputs

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thick. The 8US busbar system can be loaded with a maximum summation current of 630 A. The "reversing starter" version requires a device holder along side the busbar adapter for lateral mounting. The compact feeders are snapped onto the adapter and connected on the line side. This prepared unit

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© Siemens AG 2011 Industrial Remote Communication Telecontrol — Accessories Line transformer ■ Overview • Quadruple transformer for the multiplication of the trunk line connection of a dedicated line modem from 1 x 2-wire to 4 x 2-wire ■ Application In a controller

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IN ? + ? + ? + OUT External Internal Y1 F1, 2 N e.g. current transformer in the star point of power transformer or a summation current transformer 1200 A /1A z.B. Wandler im Transformator- Sternpunkt oder Summenstromwandler 1200 A /1 A Ausgelöst-Meldeschalter (Stellung nach Auslösung) / trip signalling switch S

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determines the ground-fault current for the three phase currents and neutral conductor current by means of vectorial summation current formation. 3-pole circuit breaker, current transformer in the neutral conductor Direct detection of the ground-fault current through a current transformer

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-conductor current are measured directly. The electronic trip unit determines the ground-fault current by means of vectorial summation current formation for the three phase currents and the N conductor current. Direct measurement of the ground-fault current (measurement method 2) A standard transformer

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Ground-fault protection -- Module can be retrofitted Tripping and alarm function -- Tripping function can be switched on/off -- Detection of the ground-fault current through summation current formation with internal or external N conductor transformer -- Detection of ground-fault current

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SENTRON 3VL Molded Case Circuit Breakers According to UL 489/IEC 60947-2 up to 1600 A General data 5/50 Siemens LV 16 · 2009 5 Electronic trip unit VL150 UL (DG frame) to VL1600 UL (PG frame) ? functional overview Ground-fault protection $Vectorial summation current formation (4-conductor

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the ground-fault current by means of vectorial summation current formation for the three phase currents and the N-conductor current. Direct measurement of the ground-fault current (measurement method 2) A standard transformer with the following data is used for measurement of the ground-fault current

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for the neutral conductor takes effect when the current transformer is fitted in the neutral conductor. The ground-fault current is calculated by means of summation current formation of the phases and the neutral conductor. Type of detection (see page 2/7) Designation Electronic trip unit version Frame

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-fault protection -- fixed mounted (only ETU47WT) Tripping function can be switched on/off -- (only ETU47WT) Detection of the ground-fault current through summation current formation with internal or external neutral conductor transformer -- (only ETU47WT) Detection of ground-fault current through

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3WT Air Circuit Breakers up to 4000 A (AC) Project planning aids 2/44 Siemens LV 35 · 2009 2 Current transformers for overload protection in the neutral conductor External transformers for neutral conductor with copper busbars External transformers for neutral conductor without copper

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? Reversible neutral conductor protection ? Permanently integrated ground-fault protection. Calculation of the ground-fault current through vectorial summation current formation For technical details see the table ?Functional Overview of the Electronic Trip Unit System? under ?Technical Specifications