50-60Hz Current transformers

Features 

• Current sense transformers used to detect 50-60Hz alternating currents up to 600A
• Wide range of standard products available.
• Special versions according to customers’ requirements
• Manufactured according to EN61558 and EN60950 standards

Technical description

Current transformers intended for measuring alternating currents at 50-60Hz, for overcurrent detection and protection in industrial applications.

The standard products range include transformers from 25A to 600A. Their toroidal structure makes them easy to insert into cables or other parts of the circuits without having to interrupt or modify the circuit itself. The conductor carrying the current to be measured serves as the one turn primary while the secondary is wound around the core. The voltage at the load resistor is proportional to the current flowing in the primary winding. Sensitivity can be enhanced by increasing the number of primary turns.

UTK current transformers provide the galvanic insulation and dielectric strength adequate for separation from a.c. mains potentials.

UTK Component current transformers have the following characteristics:
• Compact construction. They are vacuum-filled and encapsulated in plastic box made with self extinguishing material UL94-HB, suitable for the
   application on high density PCBs.
• Availability in a standard temperature range ( 0+80°) or an extended
• Wound on toroidal cores
• Primary current from 25 to 600A
• Working frequency 50-60Hz
• Safe and reliable galvanic insulation (4KV)
• Low losses.

A wide range of standard products is available for the most common applications. In order to satisfy specific requirements UTK Component can develop special products according to the customers’ needs.

UTK Component controls closely the production during the process and at the end of it, granting the quality and reliability of the product. The carried out tests include:
• Visual inspection
• Pinout and polarity check
• Value of the reference parameters
• Dielectric strength

Reference parameters

Primary and secondary current Ip/Is

RMS value of the alternating current on the primary (Ip) and secondary (Is) windings.

Load resistance Ru

Nominal load resistance on the secondary circuit.

Output voltage Vu

Voltage measured at the load, proportional to the primary current value.

Tensione di prova Up

Tensione di prova tra primario e secondario. Il test di rigidità dielettrica è effettuato sul 100% della produzione secondo le modalità esecutive indicate dalla norma EN61558, EN60950.





 

Code

Ip/Is

Circuit

Model

Output

Ru (Ω)

Test Voltage

Vu

Accuracy

TA-526020

25/0.05 A

1

TA-526

PIN

40

4 KVac

2 Vac

2.1%

TA-526025

25/0.05 A

1

TA-526

1-2

40

4 KVac

2 Vac

2.1%

TA-531010

25/0.05 A

1

TA-531

1-2

40

4 KVac

2 Vac

2.0%

TA-531015

25/0.05 A

1

TA-531

PIN

40

4 KVac

2 Vac

2.0%

TA-531020

50/0.05 A

1

TA-531

PIN

80

4 KVac

4 Vac

1.0%

TA-531050

50/0.05 A

1

TA-531

1-2

80

4 KVac

4 Vac

1.0%

TA-540100

100/0.2 A

2

TA-540

1-4

20

4 KVac

4 Vac

0.8%

TA-540125

25/0.2 A

 

 

1-2

20

4 KVac

4 Vac

2.5 %

 

50/0.2 A

3

TA-540

1-3

20

4 KVac

4 Vac

1.5%

 

100/0.2 A

 

 

1-4

20

4 KVac

4 Vac

0.8%

TA-540150

100/0.1 A

2

TA-540

1-4

20

4 KVac

2 Vac

0.4%

TA-540200

200/0.2 A

2

TA-540

1-4

10

4 KVac

2 Vac

0.4%

TA-560100

400/0.4 A

2

TA-560

1-4

20

4 KVac

8 Vac

0.4%

TA-560200

200/0.4 A

 

 

1-2

20

4 KVac

8 Vac

1.0%

 

400/0.4 A

3

TA-560

1-3

20

4 KVac

8 Vac

0.4%

 

600/0.4 A

 

 

1-4

20

4 KVac

8 Vac

0.2%

TA-560300

400/0.2 A

2

TA-560

1-4

20

4 KVac

4 Vac

0.2%

TA-560400

200/0.2 A

 

 

1-2

20

4 KVac

4 Vac

0.5%

 

300/0.2 A

3

TA-560

1-3

20

4 KVac

4 Vac

0.3%

 

400/0.2 A

 

 

1-4

20

4 KVac

4 Vac

0.2%

TA-560500

600/0.6A

2

TA-560

1-4

10

4 KVac

6 Vac

0.2%

TA-560600

600/0.2 A

2

TA-560

1-4

20

4 KVac

4 Vac

0.5%


 
 
 
UTK COMPONENT - Via del Progresso 35/37 - 36025 Noventa Vicentina VI - Tel. (+39) 0444 760770 r.a. - Fax (+39) 0444 860963