Bar or cable primary current transformers

   HT SERIES

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Indoor or outdoor

3.6- 7.2 - 12 - 17.5 -24 KV

Primary current from 100 to 30000A

Ith up to 1000 Ipn

Cast-resin insulated

Current transformers vacuum moulded in self-extinguishing epoxy resin for the measurement of AC currents from 100 to 30000A.

This range is also suitable for power generation. They have been designed to be installed in bus ducts between generator and transformer.

They enable very high performance to be achieved.

 

 

Technical data

Rated insulation level

 

Up to 24/50/125 kV

 

Primary current Ipn

 

100 to 30000A

 

 

Secondary current Isn

 

5 or 1 A

 

 

 

Frequency

 

 

50 or 60 Hz

 

 

Rated output

 

1 to 1000 VA

 

 

Accuracy class

 

0.1 - 0.2 - 0.2S -0.5-0.5S-1-3-5P-10P-clX

Security factor

 

5 to 20

 

 

Accuracy limit factor

 

5 - 10 - 15 - 20 -30-50

 

 

Short-time thermal current Ith

80 to 1000 Ipn

 

 

Dynamic current Idyn

 

2.5Ith

 

 

 

Insulation class

 

E

 

 

 

Altitude

 

1000 m

 

 

Ambient temperature

 

-5C° to + 40 C°

-25C° to + 40 C°

-40C° to + 40 C°

 

 

Standards

 

 

IEC60044-1, IEC61869-2, IEC60044-6



 

 


Other characteristics on request

Secondary current Isn

 

0.005 to 10A

 

 

Rated insulation level

 

 

25/50/150 A

 

 

Multiple cores

 

Up to 3 cores

 

 

Continues thermal current

 

1.2 to 1.5Ipn and 2Ipn

 

 

Ambient temperature

 

Up to + 110C°

 

 

Standard

 

 

ANSI C57.13, IEC60044-6, BS, A, VDE



 

 

 

*This document is the property of Pars Shar and maybe changed without prior notice*