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MEASUREMENT TRANSFORMERS AND SHUNTS

MEASUREMENT TRANSFORMERS AND SHUNTS
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Electrical measurement and control Measurement and Shunts sfo ■m t

1 M M Electrical measurement and control Measurement Transformers and Shunts The concern to measure the installations consumption or any electrical parameter during the energy management procedures has arisen with the need to trans-form high currents into small currents that can be measured by electronic units . CIRCUTOR offers a solution with a vast range of transformers with different fea-tures that can cater for the main market needs . CIRCUTOR's current transformers have the following features: O 1. Insulation and separation of cirͭcuits and measurement devices from the voltage lines ....

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Measurement Transformers and Shunts mi Transformer saturation In the case of current transformers, they are saturated by overloads in or-der to make sure that the equipment is not damaged from the secondary. The Fs parameter (Safety Factor) shows the number of primary current transmissions the transformer is capable of transferring to the measurement equip-ment before it is saturated . A transformer will become saturated when its primary current or load are above the nominal values . The linearity of the current transformaͭtion between the primary and second-ary decreases, so that the error...

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Measurement Transformers and Shunts Current transformers srie MC Single-phase Efficient current transformers O Transformer range from 150 to 1,500 A O Secondary 250 mV. O Three ranges in the same transformer. O Compatible with the MC product range from CIRCUTOR. Frequency 50 / 60 Hz Isolation voltage 3 kVac Thermal short-circuit current, / 60 /n Dynamic current, /dyn 2,5 Highest current in the material 0,72 kVac Thermal class B (130 °C) Type of encapsulation VO self-extinguishing plastic Safety factor fs 5 Secondary sealable terminals yes Secondary terminals IP 20 Fixing on DIN rail MC1-20...

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III. I Measurement Transformers and Shunts Current transformers srie MC-3 iree-phase Efficient current transformers Current transformers specially designed to be installed above a switch O Transformer range from 63 to 250 A O Secondary 250 mV O Compatible with the MC product range from CIRCUTOR. Frequs 50 / 60 Hz Isolation voltage 3 kVac Thermal short-circuit current, /th 60 /n Dynamic current, /dyn 2,5 /th Highest current in the material 0,72 kVac Clase 0,5 Thermal class B (130 °C) Type of encapsulation VO self-extinguishing plastic Safety factor fs 5 Secondary sealable terminals yes...

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Measurement Transformers and Shunts mi Current transformers TC sries Narrow-profile current transformer O Type: bar entrance O Types: from 40 to 4000 A O Internai diameter: from 20 . 3 to 63 mm, de- pending on the type O Busbar dimensions: from 25 x 5 mm to 30 x 100 mm O Transformer certificate sheet is attached O DIN rail fixing accessory (Types TC5 and TC6) O Secondary coding types . . . /5 A (on de-mand . . . /1 A . TC12 not availabla) Frequency 50 / 60 Hz Isolation voltage 3 kV ac Thermal short-circuit current, / 60 /n Dynamic current, /dyn 2 5 /th Highest current in the material 0 . 72...

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MEASUREMENT TRANSFORMERS AND SHUNTS - 11

Measurement Transformers and Shunts mi Current transformers TC sries Narrow-profile current transformer

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MEASUREMENT TRANSFORMERS AND SHUNTS - 12

III. I Measurement Transformers and Shunts Current transformers TCH Top-performance current transformer [ Description ^ O Narrow-profile O Types: from 100 to 4000 A O Internai diameter: from 26 to 63 mm, de- pending on the type O Busbar dimensions: from 30 x 10 mm to 30 x 100 mm O Transformer certificate sheet is attached Frequency 50 / 60 Hz Isolation voltage 3 kV ac Thermal short-circuit current, / 60 /n Dynamic current, /dyn 2 -5 /th Highest current in the material 0 . 72 kV ac Thermal class B130 °C Working temperature -5 . . . 40 °C Type of encapsulation VO self-extinguishing plastic...

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MEASUREMENT TRANSFORMERS AND SHUNTS - 14

III. I Measurement Transformers and Shunts Current transformers TA Large-scale current transformer Features O Types: from 750 to 5000 A O Busbar dimensions: from 20 x 100 mm to 60 x 125 mm O Transformer certificate sheet is attached Frequency 50 / 60 Hz Isolation voltage Thermal short-circuit current, /th Dynamic current, /dyn Highest current in the material Thermal class Type of encapsulation Safety factor Secondary sealable terminals 3 kV ac 60 /n 2 5 /th 0 . 72 kV ac 105 °C VO self-extinguishing plastic < 5 Yes Standards IEC 44-1, UNE 21 088-1, UL 94, VDE 0414 Converting a high nominal...

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MEASUREMENT TRANSFORMERS AND SHUNTS - 16

III. I Measurement Transformers and Shunts Current transformers TP Split-core current transformer O The most important features of these transformers are that they are "disassemblable" . In other words, the whole installation does not have to be disassembled . O Types: from 100 to 5000 A O Busbar dimensions: from 20 x 30 mm to 80 x 160 mm O Transformer certificate sheet is attached Frequency 50 / 60 Hz Isolation voltage Thermal short-circuit current, /th Dynamic current, /dyn Highest current in the material Thermal class Working temperature Transformer ratio Type of encapsulation Secondary...

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MEASUREMENT TRANSFORMERS AND SHUNTS - 18

III. I Measurement Transformers and Shunts Current transformers TA 210 High-accuracy wound primary current transformer Types: from 5 to 400 A Wound primary Converting a high nominal current to a lower current so that it can be measured by the unit In installations where the nominal current is not too high or where the current requested from the secondary power transformer does not ex-ceed 10 VA . Type TA 210 Wound Primary Dimensions (mm) a a b c 104 5 134 VA Class Code A 0,5 1 3 5/5 15 20 30 [*] M70541 10/5 15 20 30 [*] M70542 15/5 15 20 30 [*] M70543 20/5 15 20 30 [*] M70544 25/5 15 20 30...

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