TRANSFORMERS

TRANSFORMERS
1 / 64 PagesView full catalog

TRANSFORMERS

Product catalog summary
General Description: The document provides comprehensive specifications and descriptions for various series of current and voltage transformers, including TCB, TC, TCB-A, TCA, TCM, TCC/TCCN, TCBDS, and TVD series. These transformers are utilized for measurement, protection, and offering double ratios, along with related accessories.
Specifications: The transformers are designed to measure high current values using instruments with lower ratings. Key specifications include thermic current (Ith), dynamic current (Idyn), highest voltage limit, test voltage, saturation factor (Fs), and safety factor (n). Accuracy classes are defined according to IEC 185, VDE-0414, and UNE-21028 standards, with different classes required for energy meters, measurements, and protection relays.
Technical Characteristics: The transformers feature ABS-V0 resin casing, a standard secondary current of 5A, and a maximum service voltage of 1.2 kV. They are constructed according to EN 60044-1 for current transformers and IEC 60186 for voltage transformers. Specifications include torsion and traction values for screws and nuts, degree of protection (IP30), and operating temperature ranges.
Installation and Safety Recommendations: During installation, ensure the correct input and output direction of the primary cable. If disconnecting measuring instruments from the CT while operating, short-circuit the secondary terminals. Grounding of CTs is recommended.
Alternative Options and Special Executions: Options include secondary current of 1A, other ratios, tropicalization, and transformers with specific accuracy classes. Internal or calibration certifications are available.
Calculation Example: The document provides a formula for calculating the diameter of a cable based on its section, illustrated with a 95 mm² cable example.
Overview: The document details specifications and classifications for various types of current transformers, including double ratio, special classes, and protection transformers. It includes information on primary and secondary currents, class accuracy, and physical dimensions.
Specifications: Transformers are categorized by their primary current capacity, ranging from 300A to 4000A. Each category specifies class accuracy (0.5, 1, 3, 5P5, 5P10, 5P15, 5P20), secondary current ratings (5A, 1A), and weight in kilograms. Suitable configurations for primary current input, such as cable diameter and bar dimensions, are detailed.
Double Ratio Current Transformers: These transformers offer flexibility with dual primary current ratings, allowing for a range of applications. Specific models like TCB6/2, TCB8/2, and TCB12/2 are listed with their respective current ranges and VA ratings.
Special Classes and Protection Transformers: Special class transformers are designed for precise applications, with classes like 5P5 and 5P10 indicating their accuracy and performance under specific conditions. Protection transformers are detailed with classes 5P15 and 5P20, focusing on their ability to handle fault conditions.
Physical and Installation Details: Dimensions and fixing details for each transformer model are included, ensuring proper installation and compatibility with existing systems. Accessories and additional components are referenced for further customization and integration.
Key Data from Tables: Tables provide a comprehensive breakdown of each transformer's capabilities, including primary and secondary current ratings, class accuracy, VA ratings, and weight. This data is crucial for selecting the appropriate transformer for specific electrical applications.
Technical Specifications: Current transformers are designed to measure high primary currents using standard tools. They consist of an iron core with a secondary winding and a static converter that outputs a 4-20 mA DC signal. Suitable for primary currents from cables with a maximum diameter of 30 mm or various horizontal and vertical bar configurations.
Wiring Diagram: The document includes a wiring diagram for connecting the transformers, indicating the primary and secondary connections and the output specifications.
Product Variants and Specifications: Several models of current transformers are listed, each with different primary current ratings and weights. Models are categorized by their primary current capacity, ranging from 50A to 5000A, with corresponding secondary current outputs and weights.
Installation and Accessories: Transformers are fixed directly to bus bars using insulated screws provided. Custom characteristics and secondary current ratings of 1A are available upon request. Accessories for installation are listed on page 60.
Split Core Transformers: Split core transformers are available for easy installation and maintenance. Suitable for primary currents from horizontal and vertical bars of various dimensions, these transformers offer high accuracy and reliability, with a range of primary currents from 100A to 5000A.
Performance and Burden: The document details the performance classes (0.5, 1, and 3) for various primary current ratings, specifying the burden in VA for each class.
Applications: These transformers are used for measuring currents from 25A to 600A. They are particularly suited for electronic measuring circuits due to their high number of secondary turns, resulting in a low secondary current. Applications include current sensors for protection circuits and measuring instruments.
Overview: The document provides detailed specifications and characteristics of various types of current and voltage transformers, including measuring transformers and protection transformers. It includes information on fixing systems, primary and secondary current specifications, class ratings, and weight. Additionally, it covers transformers suitable for electronic use and provides accessory details.
Specifications: The document lists transformers suitable for primary currents with specific cable diameters and bar dimensions. Tables detail primary current ratings, class ratings (0.5, 1, 3), secondary current specifications, and weight for different transformer models such as TCM1D, TCM3D, TCM4D, TCM5D, and TCM6.
Fixing Systems: Transformers can be fixed to walls or DIN rails using accessories, or directly to cables using screws. Accessories and screws are supplied with the transformers.
Current Transformers for Electronic Use: These transformers have specific primary current ratings, class ratings, secondary current specifications, turns number, load resistance, and secondary voltage. Models include TCMEL and TCM6EL, with some featuring cases resistant to high temperatures.
Protection vs. Measuring Transformers: Protection transformers have different electrical characteristics compared to measuring transformers. Protection transformers need to handle higher secondary current values to ensure relay intervention during fault conditions. The document emphasizes not exceeding the specified load to avoid altering the saturation value of the transformer.
Accessories: The document references accessories available on page 60, with specific numbers for different transformer models.
Dimensions: Detailed dimensions are provided for various transformer models, indicating suitability for specific cable diameters and bar dimensions.
Overview: This document provides detailed specifications and technical information about various types of current and voltage transformers, including their dimensions, classes, and suitable applications. It also includes information on accessories and installation guidelines.
Specifications: The document lists transformers suitable for different primary currents, categorized by horizontal and vertical bar configurations. It specifies the primary and secondary current ratings, class accuracy (0.5, 1, 3, etc.), and weight for each transformer model. The transformers are designed for various primary currents ranging from 200A to 6000A.
Technical Specifications: The transformers are manufactured according to CEI IEC 60044-1 standards, with primary voltages ranging from 100V to 600V and secondary voltages specified as needed. They feature accuracy classes of 0.5, 0.2, and 0.1%, with load capacities between 4-50 VA. The insulation is resin-based, with a maximum operating voltage for insulation of 0.72/3 and a test voltage of 3 KV for 1 minute.
Installation and Connection: The document includes diagrams for connecting transformers in single-phase, two-system (ARON), and three-system configurations. It specifies the use of summation current transformers and the necessary connections for each phase.
Accessories: A section is dedicated to accessories for the transformers, detailing various models and their applications. The document also provides dimensions for each accessory type.
Key Data from Tables: The tables provide detailed information on the transformer models, including their primary and secondary current ratings, class accuracy, and weight. For example, the TCC126 model is suitable for primary currents of 1000A to 2500A, with a weight of 1.0 kg.
Recommendations: When ordering, it is crucial to specify the exact primary and secondary voltages, power, class, and frequency of use. The document emphasizes the importance of adhering to the specified voltage factors for phase-phase and phase-neutral models.
See more

Catalog excerpts

TRANSFORMERS-1

TRASFORMATORI TRANSFORMERS TRASFORMATORI DI CORRENTE SERIE TCB, TC, TCB-A, TCA, TCM, TCC/TCCN SOMMATORI SERIE TCBDS TRASFORMATORI DI TENSIONE SERIE TVD ACCESSORI CURRENT TRANSFORMERS TCB, TC, TCB-A, TCA, TCM, TCC/TCCN SERIES SUMMATION TCBDS SERIES VOLTAGE TRANSFORMERS TVD SERIES ACCESSORIES

 Open the catalog to page 1
TRANSFORMERS-2

TRASFORMATORI DI MISURA, DI PROTEZIONE, CON DOPPIO RAPPORTO MEASURING, PROTECTION AND DOUBLE RATIO TRANSFORMERS TRASFORMATORI DI MISURA E DI PROTEZIONE MEASURING AND PROTECTION TRANSFORMERS Serie TCC/TCCN Series TRASFORMATORI DI CORRENTE CON USCITA ANALOGICA CURRENT TRANSFORMERS WITH ANALOG OUTPUT TRASFORMATORI DI MISURA E DI PROTEZIONE MEASURING AND PROTECTION TRANSFORMERS Serie TCB-A Series Serie TCBDS Series TRASFORMATORI DI CORRENTE APRIBILI SPLIT CORE CURRENT TRANSFORMERS TRASFORMATORI DI CORRENTE SOMMATORI SUMMATION CURRENT TRANSFORMERS TRASFORMATORI DI CORRENTE APRIBILI SPLIT CORE CURRENT...

 Open the catalog to page 2
TRANSFORMERS-3

Pagina / Page indice . index Prodotti / Products

 Open the catalog to page 3
TRANSFORMERS-4

GENERAL DESCRIPTION APPLICAZIONE: in generale, i trasformatori consentono di misurare con normali strumenti, correnti elevate. A causa degli alti costi di connessione, si raccomanda di usare i TA per correnti superiori a 40A (se non altrimenti specificato). Riportiamo qui di seguito alcune definizioni inerenti i trasformatori di corrente. CORRENTE TERMICA (Ith): e la massima corrente primaria (valore efficace) che il trasfor-matore puo sopportare per 1 secondo senza provocare danni dovuti a sovraccarichi eccessivi, con secondario cortocircuitato. CORRENTE DINAMICA (Idin): e la massima corrente...

 Open the catalog to page 4
TRANSFORMERS-5

CARATTERISTICHE TECNICHE Corrente secondaria 1A Altri rapporti e/o prestazioni Tropicalizzazione Trasformatori in classe 0,2 - 0,2S - 0,5S / 5P5 - 5P10 - 5P15 - 5P20 Certificazioni interne od UTF Other ratios and/or performances Transformers with class 0,2 - 0,2S - 0,5S / 5P5 - 5P10 - 5P15 - 5P20 Internal or calibration certifications COME CALCOLARE IL DIAMETRO DI UN CAVO Per risalire al diametro di un cavo (per esempio) di 95 mm2, occorre fare riferimento alla seguente formula: Sezione = r x r x 3,14 cioe r2 x 3,14 da cui: r = Vsezione / 3,14; Diametro = r + r quindi il diametro e uguale a 5,5...

 Open the catalog to page 5
TRANSFORMERS-6

TCB - TABELLA DI COMPARAZIONE | COMPARISON TABLE TIPO / TYPE SEZIONE CENTRALE CENTRAL SECTION ESECUZIONE EXECUTION BARRA ORIZZONTALE HORIZONTAL BAR CAVO / CABLE BARRA VERTICALE VERTICAL BAR PRIMARIO AVVOLTO / WOUNDED PRIMARY 15x3(<80A) 20x3 mm 15x3 mm 25x3(100/300A) incorporated 25x5(400/500A) PRIMARIO PASSANTE / PASSING PRIMARY 20x10 mm 30x10 mm 25x20 mm 30x30 mm 50x20 mm 60x30 mm 80x50 mm 30x10 mm 30x25 mm 40x25 mm 60x20 mm 80x30 mm 100x50 mm 40x10 mm 50x20 mm 125x50 mm 21 mm TRASFORMATORI DI CORRENTE E DI TENSIONE

 Open the catalog to page 6
TRANSFORMERS-7

CURRENT AND VOLTAGE TRANSFORMERS | 5

 Open the catalog to page 7
TRANSFORMERS-8

TCC / TCCN - TABELLA DI COMPARAZIONE | COMPARISON TABLE TIPO / TYPE SEZIONE CENTRALE CENTRAL SECTION ESECUZIONE EXECUTION MONOFASE / SINGLE-PHASE BARRA ORIZZONTALE HORIZONTAL BAR CAVO CABLE BARRA VERTICALE VERTICAL BAR CORRENTE PRIMARIA PRIMARY CURRENT 0,5 Classe / Class TRASFORMATORI DI CORRENTE E DI TENSIONE

 Open the catalog to page 8
TRANSFORMERS-9

TCB TRASFORMATORI DI CORRENTE | CURRENT TRANSFORMERS Coprimorsetto sigillabile di serie / Caratteristiche diverse possono essere realizzate su richiesta. Fissaggio: a parete, su cavo/barra passante o su barra DIN tramite accessori forniti unitamente al TA (a seconda del modello) Sealable terminals cover included / Different characteristics on request Fixing system: to wall, to cable/passing bar or to DIN rail by accessories supplied with the CT (depending by the type) TRASFORMATORI DI MISURA / MEASURING TRANSFORMERS Il corto circuito sui morsetti od il collegamento a terra, possono essere effettuati...

 Open the catalog to page 9
TRANSFORMERS-10

TRASFORMATORI DI CORRENTE | CURRENT TRANSFORMERS Trasformatore adatto per corrente primaria da cavo con diametro massimo di 15 mm o da barra orizzontale 20x3 mm Transformer suitable for primary current Trasformatore a primario avvolto, corrente primaria e secondaria sui morsetti Transformer with wounded primary; 8 | TRASFORMATORI DI CORRENTE E DI TENSIONE

 Open the catalog to page 10
TRANSFORMERS-11

Trasformatore a primario avvolto, corrente primaria da barra centrale incorporata 15x3 mm; corrente secondaria sui morsetti Transformer with wounded primary; primary currents on central incorporated bar 15x3 mm; secondary current on terminals Trasformatore a primario avvolto, CURRENT AND VOLTAGE TRANSFORMERS | 9

 Open the catalog to page 11
TRANSFORMERS-12

10 | TRASFORMATORI DI CORRENTE E DI TENSIONE

 Open the catalog to page 12
TRANSFORMERS-13

TRASFORMATORI DI CORRENTE | CURRENT TRANSFORMERS Trasformatore a primario avvolto, corrente primaria da barra centrale incorporata (corrente secondaria sui morsetti): da 50A a 80A = 15x3x110 mm (0 6 mm) da 100A a 300A = 25x3x135 mm (0 10 mm) da 400A a 500A = 25x5x135 mm (0 10 mm) Transformer with wounded primary; primary currents on central incorporated bar (secondary current on terminals): from 50A to 80A = 15x3x110 mm (0 6 mm) from 100A to 300A = 25x3x135 mm (010 mm) from 400A to 500A = 25x5x135 mm (010 mm) Primario TRASFORMATORI DI CORRENTE CON POTENZE ELEVATE /HIGHER POWERS CURRENT TRANSFORMERS...

 Open the catalog to page 13
TRANSFORMERS-14

TRASFORMATORI DI CORRENTE DOPPIO RAPPORTO / DOUBLE RATIO CURRENT TRANSFORMERS 12 | TRASFORMATORI DI CORRENTE E DI TENSIONE

 Open the catalog to page 14
TRANSFORMERS-15

Trasformatore adatto per corrente primaria da cavo con diametro massimo di 20 mm Transformer suitable for primary current by cable with maximum diameter 20 mm TRASFORMATORI DI CORRENTE DOPPIO RAPPORTO / DOUBLE RATIO CURRENT TRANSFORMERS Primario CURRENT AND VOLTAGE TRANSFORMERS | 13

 Open the catalog to page 15
TRANSFORMERS-16

TRASFORMATORI DI CORRENTE | CURRENT TRANSFORMERS Trasformatore adatto per corrente primaria da cavo con diametro massimo di 21 mm o da barra orizzontale / or by horizontal bar: 20 x 10 mm 30 x 10 mm o da barra verticale / or by vertical bar: 14 | TRASFORMATORI DI CORRENTE E DI TENSIONE

 Open the catalog to page 16
TRANSFORMERS-17

Trasformatore adatto per corrente primaria da cavo con diametro massimo di 25 mm ransformer suitable for primary current by cable with maximum diameter 25 mm o da barra orizzontale or by horizontal bar: 30 x 10 mm o da barra verticale or by vertical bar: TRASFORMATORI DI CORRENTE CLASSI SPECIALI /SPECIAL CLASSES CURRENT TRANSFORMERS Primario CURRENT AND VOLTAGE TRANSFORMERS | 15

 Open the catalog to page 17

All Contrel elettronica catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.