TRANSFORMADOR SEPARADOR PARA FILTRADO DE
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1. 225 Hz 4 1 Types and components see wire diagram TYPE TR L1 C1 RD 1 2 10 10 15 400 40 10 WRTR 35 03 1 20 TSA 20 20 R 15 400 40 10 WRTR 35 03 1 40 TSA 30 30 R 15 400 40 10 WRTR 35 03 1 63 5 40 40 30 400 40 20 WRTR 35 03 1 80 TSA 50 50 RB 30 400 CV 40 20 WRTR 35 03 1 100 TSA 80 80 RB 30 400 CV 40 20 WRTR 35 03 1 160 TSA 100 100 RB 30 400 CV 40 20 WRTR 35 03 1 250 4 2 Dimensions 5 TYPE A B H TSA 10 505 580 780 H TSA 15 505 580 780 TSA 20 505 580 780 TSA 30 740 880 1050 TSA 40 740 880 1050 TSA 50 740 880 1050 B TSA 80 740 880 1050 TSA 100 740 880 1050 a INSTALLATION AND SET UP 5 1 Important remarks Loads at the secondary side must be connected at the SALIDA OUTPUT side phase to phase U2 V2 V2 W2 W2 U2 see wire diagram To get the maximum effectiveness of the TSA filter the loads must be as balanced as possible between the three possible pairs of phases U2 V2 V2 W2 W2 U2 see wire diagram Never connect a load between a phase and the PE protection earth cable Loads which do not produce 34 harmonic as incandescent lighting heating etc do not need to be connected to the TSA output They can be connected at the primary side between phase and neutral The TSA must be connected to mains by the side named ENTRAD2. EN 60 742 Filtro Frecuencia de resonancia 225 Hz 4 1 Tipos y componentes ver esquema TIPO TR L1 Cl RD 1 IA2 kVA trif sica A A TSA 10 10 R 15 400 CV 40 10 WRTR 35 03 1 20 TSA 20 20 R 15 400 CV 40 10 WRTR 35 03 1 40 TSA 30 30 R 15 400 CV 40 10 WRTR 35 03 1 63 TSA 40 40 RB 30 400 CV 40 20 WRTR 35 03 1 80 TSA 50 50 RB 30 400 CV 40 20 WRTR 35 03 1 100 TSA 80 80 RB 30 400 CV 40 20 WRTR 35 03 1 160 TSA 100 100 RB 30 400 CV 40 20 WRTR 35 03 1 250 4 2 Dimensiones 5 TIPO A B H TSA 10 505 580 780 H TSA 15 505 580 780 TSA 20 505 580 780 TSA 30 740 880 1050 B TSA 40 740 880 1050 TSA 50 740 880 1050 B TSA 80 740 880 1050 TSA 100 740 880 1050 la INSTALACI N Y CONEXIONES 5 1 Recomendaciones importantes Las cargas deben conectarse en el lado de secundario marcado como SALIDA OUTPUT entre fases U2 V2 V2 W2 W2 U2 ver esquema Para obtener la m xima efectividad del filtro TSA las cargas deben conectarse de la forma m s equilibrada posible entre los pares de fases U2 V2 V2 W2 W2 U2 ver esquema No conectar nunca cargas entre una fase y el conductor de protecci n PE Las cargas que no producen arm nicos m ltiplos de 3 como alumbrado de incandescencia calefacci n etc no necesitan ser conectadas a la salida del TSA con lo cual se evita sobrecargarlo Pueden conectars
3. CIRCUTOR TRANSFORMADOR SEPARADOR FILTRADO DE 3r ARM NICO TSA MANUAL DE INSTALACI N M 981231 01A 1 INTRODUCCI N Es frecuente encontrar instalaciones con varios receptores monof sicos de entrada Tal el caso de edificios de oficinas bancos estudios de televisi n etc donde conectan equipos inform ticos c maras terminales fax etc Este tipo de instalaciones presenta una problem tica peculiar ya que se generan arm nicos de orden tres y sus m ltiplos que aparecen sumados en el conductor neutro Puede darse el caso parad jico que la corriente el neutro sea incluso superior la de las fases incluso el caso de un reparto perfecto de cargas entre las tres fases Esto suele ocasionar disparos intempestivos de dispositivos de protecci n magnetot rmicos sobrecalentamiento del conductor neutro de dichas instalaciones Los filtros TSA constituyen la soluci n id nea para estos casos ya que el filtrado de tercer arm nico por otros medios puede provocar saturaci n de transformadores y empeorar la situaci n Los TSA consisten en un transformador separador trif sico con conexi n tri ngulo estrella que filtra completamente la corriente de tercer arm nico y un filtro pasivo de banda ancha que amortigua la del quinto y s ptimo arm nicos 2 EMPLAZAMIENTO Y DIMENSIONADO DE LOS SEPARADORES TSA 2 1 D nde ubicar el TSA Es importante que el filtro est ubic
4. A INPUT The three phases shall be connected to U1 V1 Wland the neutral to N The neutral is used only as auxiliary supply for the protection elements Do not connect it to the load side see fig 1 Connect the PE terminal of the TSA to the protection earth cable in the existing installation Loads to be filtered must be connected to the side named SALIDA OUTPUT Terminals U2 V2 W2 without the neutral see wire diagram The 230 V output is phase to phase All the single phase loads must be connected phase to phase If the TSA is mounted in an existing installation where loads were supplied between phase and neutral a new distribution has to be made trying to keep the maximum balance between the pairs of phases U2 V2 V2 W2 W2 U2 see wire diagram The earth cable to be distributed to the load is the already existing earth connected to PE Adjust the sensitivity and the desired delay for the earth leakage relay according to the load needs and the desired selectivity For TSA units with rated power below 50 kVA adjust in the low range 30 to 100mA For higher powers the threshold can be increased up to 300mA In case that the relay trips check the leakage current REMARK In case that the loads are mainly single phase supplying computers printers speed controllers etc the trip threshold of leakage relay must be increased due to the EMI filters leakage 6 TROUBLE SHOOTING AND MAINTENENCE e Check periodically that th
5. CTION There 15 lot of electrical supply installations where most of loads single phase supplying rectifier plus a filter This case is very common office buildings big stores TV studies where there is a lot of computers and electronic devices using DC supply In such installations there is a particular type of problem with harmonics of 34 order and their multiples called some times the triplens The current of the triplens add on the neutral in phase instead of adding like vectors at 120 Because of that the current at the neutral may be higher than the current at the phase cables even in case that the three phases are perfectly balanced This causes unexpected tripping of thermal protections and overheating of the neutral cables The TSA filters are the optimal solution to solve such problems since the filtering of third harmonic by other types of passive filters may cause the saturation of transformers and may spoil the situation instead of improving The basis of the TSA 15 a three phase D Y isolating transformer which eliminates the third harmonic upstream At the output there 15 also a wide band passive filter to damp down the 5 and 7 harmonics 2 LOCATION AND SIZE OF THE TSA FILTERS 2 1 Where to locate the TSA It is important to locate the TSA as close as possible to the disturbing loads Because of that we don t recommend the solution of big centralized TSA filters to compensate the whole powe
6. ado lo m s pr ximo posible a las cargas No se recomienda la soluci n de un nico filtro centralizado de gran potencia para compensar la instalaci n completa Es mejor subdividir la instalaci n en filtros de menor potencia pr ximos a los centros de consumo monof sicos La corriente aguas arriba del TSA estar pr cticamente exenta de arm nicos de orden m ltiplo de tres 2 2 Dimensionado de los TSA Los transformadores TSA vienen caracterizados por su potencia en kVA Para conocer la corriente que son capaces de suministrar debe aplicarse un factor de correcci n que depende del factor de potencia de la carga incluyendo los arm nicos As pues para calcular la potencia nominal de un TSA conociendo la corriente fundamental y los porcentajes de arm nicos previstos debe aplicarse la siguiente f rmula S VA 1 732 U I gt 100 Donde Uc es la tensi n entre fases de secundario habitualmente 220V o 230V 1 es la corriente fundamental n es 1 orden del arm nico 91 es el de arm nico n Incluyendo el 3r arm nico que va a filtrar FS es el llamado factor de sobrecarga y vale FS 1 NOTA La corriente indicada en placa de caracter sticas corresponde la suma ponderada de 1 2 fundamental m s todos los arm nicos seg n siguiente expresi n I lr y 100 3 DESCRIPCI N DEL FILTRO TSA Ver esquema El filtro s
7. e earth leakage relay operates properly Use the test push button of the relay e Check periodically that the rated power of TSA is not surpassed because of the addition of new loads Take into account the overload factor due to harmonics If new loads have to be added take care of the load balance Split the loads up in the three line pairs U2 V2 V2 W2 W2 U2 see wire diagram 7 SCHEMATICS ENTRADA INPUT 00 Especial Seg n especificaciones Special According to specifications lag 20 zm lso 0 MET 40 sn so RD Rel diferencial 300 Earth leakage relay 30mA to 300rA 141 Interruptor magnetot rmico Circuit breaker 142 Interruptor autom tico Calibre seg n la RC potencia nominal Circuit breaker Size according to rated power 11 Filtro 59 arm nico C1 Sih harmonic filter SALIDA 7 OUTPUT
8. e entre fase y neutro en el lado de primario La conexi n a la red debe hacerse por la regleta del lado indicado como ENTRADA INPUT Las tres fases se conectar n a U1 V1 W1 y el neutro a N El neutro se emplea s lo para el circuito de mando y no debe conectarse al lado de carga ver fig 1 El conductor de tierra de la instalaci n verde amarillo debe conectarse al borne de entrada PE La conexi n de las cargas debe efectuarse por el lado indicado como SALIDA OUTPUT bornes U2 V2 W2 sin utilizar neutro Ver esquema T ngase en cuenta que la salida es de 220 V entre fases Por tanto todas las cargas deben conectarse entre dos fases Si previamente las cargas se alimentaban entre fase y neutro esto obliga a una redistribuci n de las cargas entre los pares de fases U2 V2 V2 W2 W2 U2 ver esquema Como conductor de tierra para las cargas se tomar el ya existente conect ndolo al borne de salida marcado como PE Regular la sensibilidad del rel diferencial de acuerdo a las necesidades La regulaci n debe dejarse 30mA para potencias inferiores 50 300mA para potencias superiores Caso de disparo del rel comprobar el buen aislamiento de los circuitos por el lado de carga NOTA las instalaciones con muchos terminales de inform tica puede ser necesaria una regulaci n superior debido a que los filtros de EMI que incorporan presentan una peque a fuga cada uno que acumuladas pueden dar una c
9. eparador TSA est formado por las siguientes partes TRANSFORMADOR SEPARADOR Con las siguientes caracter sticas Primario Conexi n tri ngulo Bornes de entrada U1 V1 W1 N PE Ver esquema Secundario Conexi n estrella habitualmente con salida de 230 entre fases sin neutro El centro de la estrella se conecta nicamente al conductor de tierra de protecci n PE Bornes de salida U2 V2 W2 esquema FILTRO LC Filtro de 5 arm nico INTERRUPTOR AUTOM TICO TRIPOLAR DE POTENCIA Dimensionado de acuerdo a la potencia del TSA Corta todo el equipo por el lado de primario El interruptor dispara en caso de detectar fuga en el secundario INTERRUPTOR MAGNETOT RMICO BIPOLAR DE MANDO Protege el circuito de mando REL DIFERENCIAL Este rel protege el sistema de las posibles fugas en el circuito de carga secundario del transformador El rel est ndar incorporado al TSA es ajustable de 30mA a 300mA y dispone de retardo regulable 4 CARACTER STICAS T CNICAS Los filtros TSA se dise an muchas veces bajo especificaciones especiales no obstante las caracter sticas t cnicas esenciales son Transformador Tensi n de primario est ndar 400 V entre fases Tensi n de secundario est ndal 230 V entre fases Tensi n de cortocircuito ucc 6 Potencia KVA osa Seg n tipo Norma constructiva
10. imary side Delta connection Input terminals U1 V1 W1 N PE see wire diagram Secondary side Star connection usually with 230 V phase to phase The neutral conductor is not used in the load The star point is connected to the protection earth cable PE Output terminals 02 V2 W2 PE see wire diagram LC FILTER 5 harmonic filter THREE PHASE POWER CIRCUIT BREAKER The size depends on the rated power of the TSA The circuit breaker is placed at the primary side The breaker trips in case that an earth leakage is detected at the secondary side circuit SINGLE PHASE AUXILIARY SUPPLY CIRCUIT BREAKER This breaker protects the earth leakage relay and other auxiliary protection circuits EARTH LEAKAGE RELAY This relay provides a protection in case of earth leakage at the load side The standard protection relay is adjustable from 30mA to 300mA and has an adjustable delay 4 TECHNICAL CHARACTERISTICS TSA filters are often designed under particular specifications but all of them have a set of common characteristics which are listed below Transformer Standard primary voltage 400 V phase to phase Standard secondary voltage 230 V phase to phase Short circuit voltage UCC 6 Power KVA Depending on type Constructive standards EN 60 742 LC Filter Resonance frequency
11. orriente superior 6 RECOMENDACIONES EL MANTENIMIENTO e Comprobar peri dicamente con el pulsador de test del rel diferencial que ste act a correctamente e Comprobar peri dicamente que al ir a adiendo cargas no se sobrepase la potencia nominal del equipo e En caso de a adir cargas proc rese que el reparto entre fases sea lo m s equilibrado posible Repartir las cargas entre los pares de fases U2 V2 V2 W2 W2 U2 ver esquema 7 ESQUEMA ENTRADA INPUT 38 4 gt e gt D E E an m 25 Er to Pr Ext to 230 230 _ 230 230 230 ft gt gt D Especial Seg n especificaciones Y DI Specia According to specifications ie fe bho h EA ET a lso leo TER A 2 _ as RD Rel diferencial 30m4 a 300m4 Earth leakage relay 30mA to 300mA 1 1 Interruptor magnetot rmico Circuit breaker 142 Interruptor autom tico Calibre seg n la RC potencia nominal Circuit breaker Size according to rated power 11 59 arm nico 1 Sih harmonic SALIDA 7 OUTPUT CIRCUTOR ISOLATION TRANSFORMER FOR 3 HARMONIC FILTERING TSA INSTRUCTIONS MANUAL M 981231 01A 1 INTRODU
12. r distribution It s better to split up the filter in several smaller filters placed as close as possible of the single phase lines causing the disturbances In that way the currents upstream the TSA will be practically exempt of 3 harmonic 2 2 How to size the TSA The TSA filters are selected by its total power in kVA but to calculate the current that they can deliver a power factor correction must be applied Such power factor depends on the distortion of the current that the TSA must supply downstream to the loads To calculate the kVA of the TSA the fundamental and the most significant harmonics to be supplied to the load side must be known and then the rated power may be calculated according to the following formula _ PI 5 S VA 1 732 U I n VA 2 o Where Uc is the phase to phase voltage at the secondary side usually 220V or 230V I is the fundamental current at the load side n is the harmonic order is the of harmonic n Including the 3 harmonic to be filtered 1 2 The coefficient FS Ya Thy is named the overload factor 1 current written characteristics plate is rated current given weighted addition of fundamental and all the harmonics as follows 1 1 3 TSA FILTER DESCRIPTION See schematics The TSA filter is formed by the following parts ISOLATION TRANSFORMER With the following characteristics Pr
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