Summation CT

by: Hobut

Product Code: CTSUM##

Availability: Next Day Special Order

Download Summary Sheet

Quick overview

Summation Current Transformers enable the summing of multiple independent loads on different supplies, allowing all supplies to be read through one meter.

Example

  • There are 2 x 300A 3-phase supplies to be read by one CT operated meter.
  • Required for each supply are three CT’s, one for each phase, of the ratio 300/5.
  • Also required will be three 5+5=5 Summation CTs with each Summation CT designated to a phase.
  • The secondaries from both CTs on the first phase should be fed to the inputs of the designated Summation CT, with the output from the Summation CT being fed in to the meter.  This is then repeated for the second and third phase.
  • The secondary output from the Summation CT will then equal the sum of the three primary currents, (300/5 + 300/5 = 600/5), and so the meter being used should be programmed to a ratio of 600/5.

Summation CTs with up to 9 inputs are available on special order.  Summation CTs for unbalanced loads can also be manufactured upon request.

Summation Current Transformers enable the summing of multiple independent loads on different supplies, allowing all supplies to be read through one meter.

Example

  • There are 2 x 300A 3-phase supplies to be read by one CT operated meter.
  • Required for each supply are three CT’s, one for each phase, of the ratio 300/5.
  • Also required will be three 5+5=5 Summation CTs with each Summation CT designated to a phase.
  • The secondaries from both CTs on the first phase should be fed to the inputs of the designated Summation CT, with the output from the Summation CT being fed in to the meter.  This is then repeated for the second and third phase.
  • The secondary output from the Summation CT will then equal the sum of the three primary currents, (300/5 + 300/5 = 600/5), and so the meter being used should be programmed to a ratio of 600/5.

Summation CTs with up to 9 inputs are available on special order.  Summation CTs for unbalanced loads can also be manufactured upon request.

  • Conforms to EN 60044-1 / EN 61869-2 and IEC 61869-2
  • Rated system voltage 0.72/3kW
  • Ambient temperature -5ºC to +50ºC
  • Continuous current 1.2 x rated current

ADD NEW QUESTION

Name
Email
Question
Are you happy for us to display this question on the website?

Related Products

The item has been added to your basket

Continue Shopping
Proceed To Checkout
Free Delivery For Orders Over £ 50 ex. VAT
Order by 4PM For Next Working Day Delivery
Huge Range In Stock Getting You What You Need, FAST
Expert Advice Speak To One Of Our Friendly Team

REQUEST A QUOTATION

Planning a large project or looking to become a regular customer?
Let us know the product or products you require along with quantities, and we'll get in touch with our best price.