multict KSU / SUSK

Totalizing current transformer

Measure, Current transformer

Totalizing current transformers from the multict KSU and multict SUSK series adds up the input currents from up to eight main transformers and then divides them by the number of transformers or inputs. At the end of this process, the result is a standardized signal that can be further processed with one measuring device.

The totalizing current transformers are designed to be used with identical main transformers. Upon request, totalizing current transformers that can be used with different main transformers or for billing purposes can also be provided.

It is also possible to calculate differences through the counter connection of main transformers to the totalizing current transformer.

Application

Aggregation of currents from multiple main transformers, if they are displayed with a single measuring device

Highlights

Technical Data

Summation of several main converters for connection to a measuring device.

For identical main transformers; different main transformers upon request
Primary rated currents 1 A or 5 A
Secondary rated currents 1 A or 5 A
For up to 8 main transformers
Record total consumption with just one measuring instrument

Maximum operating voltage U_m		0.72 kV
Rated continuous thermal current I_cth		1.2 x I_n (1.0 x I_n for higher primary currents)
Rated short-time thermal current I_th		40 x I_n , 1 sec (max. 100 kA)
Rated surge current I_dyn		2.5 x I_th
Overcurrent limiting factor		FS 5
Rated frequency		50 Hz
Insulation class		E
Insulation test voltages		3 kV, 1 min, U_eff , 50 Hz (U_m ≤ 0.72 kV)
Working temperature range		–5 °C ≤ T ≤ +50 °C
Storage temperature range		–25 °C ≤ T ≤ +70 °C
Applied norms		DIN EN 61869/1+2, DIN 42600-1, DIN 42600-2
Unbreakable plastic housing made of polycarbonate
Flame-resistant and self-extinguishing in accordance with UL94
Nickel-plated secondary clamps with plus/minus screws (2 Nm)