CURRENT TRANSFORMERS Classic Line - Current transformers General Characteristics Current transformers convert an alternating current, usually high value, into a Accucary (according to IEC y UNE-EN 61869-2) proportional lower one. Depending on their use, the current transformers are These current transformers fulfil the specifications of the accuracy classes 0.5, 1 and 3, for the rated outputs indicated in the table, in the same instrument. - Measuring transformers: For measuring of current, power, power For measuring transformers, the current error and phase displacement at rated factor or energy connected to measuring instruments. They are frequency must not exceed the values given in the below table, when the se- characterized by their accuracy and for saturing at moderate overcurrents condary burden is any value from 25% to 100% of the rated burden. For (normally. at less than 5 times the nominal current). Thus the effect of these class 3 transformers, the limits are 50% and 100% of the rated burden. The possible overcurrents on the measuriing instruments is minimized. test burden shall have a power-factor of 0.8 lagging, except when it less tha - Protective transformers: These are generally connected to protective 5VA, in which case the power-factor shall be 1. In no case shall the test bur- relays, in which proportionality between the primary and secondary currrent has to be kept, even in overloaded conditions (normally, more Accuracy classes than 5 times the nominal current). Thus, quick operation of the relays is guaranteed. +/- Percentaje current error at percentaje of rated current CURRENT TRANSFORMERS The current transformers convert an alternating current of high value into a proportional, lower one, which is easily measurable by standard instruments (ammeters, wattmeters, varmeters, power factor meters, relays, measuring transducers, ...) of rated 5 or 1A. They are suitable for indoor use in low-vol- tage networks, and they are built according to IEC and UNE-EN 61869-2. The split core permits their installation in already constructed networks without need to cut conductors. Constructive Characteristics Cases of self-extinguishing polycarbonate UL-94 V0. Double secondary ter- +/- Phase displacement in minutes at percentaje of rated current 1% Electrical Data (according to UNE-EN and IEC 61869-2) Rated secondary current: 5 or 1 A minals, for short circuiting the secondary winding before opening the measuring circuit. The current transformers are bus bar type, excepto IBO and IBO-50, which are wound primary transformers. Frequency range: 50 - 60 Hz Highest voltage for equipment: 720 V Rated insulation level: 3 kV, 50 Hz during 1 minute Rated continuous thermal current Icth: 1.2 times rated current Rated short-time thermal current (Ith): 60 times rated current Fixing systems: - Primary busbar fixing clamps Rated dynamic current (Idyn): 2.5 times Ith - Mounting brackets for fixing screws on a surface Security factor (FS): less than 5 (depends on model and range) - DIN rail fixing, easy and fast. Thermal class of insulation: according to IEC 60085: E (120°C) Celsa Messgerate España S.L. www.celsamessgerate-spain.com [email protected] / +34 96 130 93 78

CURRENT TRANSFORMERS IBA WINDOW TYPE CURRENT TRANSFORMER Round conductor: IBA Technical Features, Executions sec. 5 A or 1 A / Rated burdens VA Primary rated current A Accesories: mounting feet / Snap on mounting EN 50022-35 *only ammeters IBP WINDOW TYPE CURRENT TRANSFORMER Round conductor: IBP Technical Features, Executions sec. 5 A or 1A / Rated burdens VA Primary rated current A Included: Primary busbar Accesories: mounting feet / Snap on mounting EN 50022-35 Celsa Messgerate España S.L. www.celsamessgerate-spain.com [email protected] / +34 9

CURRENT TRANSFORMERS IB WINDOW TYPE CURRENT TRANSFORMER Round conductor: IB Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar Accesories: mounting feet / Snap on mounting EN 50022-35 IB-50 WINDOW TYPE CURRENT TRANSFORMER The rated burden of this type is higher than the type IB. Round conductor: IB-50 Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar Accesories: mounting feet / Snap on mounting EN 50022-35 Celsa Messgerate España S.L. www.celsamessgerate-spain.com [email protected]...

CURRENT TRANSFORMERS IBG WINDOW TYPE CURRENT TRANSFORMER For round conductor Ø 40 mm the type IBG/1 is available. IBG Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Round conductor Included: Primary busbar (except IBG/1) Accesories: mounting feet / Snap on mounting EN 50022-35 IBG-50 WINDOW TYPE CURRENT TRANSFORMER The rated burden of this current transformer is higher than the type IBG. Round conductor: IBG-50 Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar Accesories: mounting feet /...

CURRENT TRANSFORMERS IBR WINDOW TYPE CURRENT TRANSFORMER Round conductor: IBR Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar Accesories: mounting feet IBR/1 WINDOW TYPE CURRENT TRANSFORMER Round conductor: IBR/1 Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar Accesories: mounting feet Celsa Messgerate España S.L. www.celsamessgerate-spain.com [email protected] / +34 96 130 93 78

CURRENT TRANSFORMERS IER WINDOW TYPE CURRENT TRANSFORMER Typ IER/1 for round conductors Ø 80 mm IER Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Round conductor IER IER/1 Primary bar IER IER/2 IER/3 Dimensions: Included: Primary busbar (except IER/1) Celsa Messgerate España S.L. www.celsamessgerate-spain.com [email protected] / +34 96 130 93 78

CURRENT TRANSFORMERS IER/4 WINDOW TYPE CURRENT TRANSFORMER Primary bar IER/4 Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar On request IRP WINDOW TYPE CURRENT TRANSFORMER On request: Seconday terminals on the long side of the current transformer IRP Technical Features, Executions sec. 5 A or 1 A/ Rated burdens VA Primary rated current A Included: Primary busbar Celsa Messgerate España S.L. www.celsamessgerate-spain.com [email protected] / +34 96 130 93 78