Ensto Phase Balancer Installations Solved Customers´ Power Quality Problems in Baltics

Phase balancer in Estonia, 2018.

Would you like to maximize the lifetime of existing low voltage grids by having more capacity and safety, with cost-effective and fast ways?

In June Baltics had their first Power Quality device, Phase Balancers installed with good results. Installations were done to a countryside in Lithuania and Estonia, where the distribution distances of low voltage are long, and due to distribution losses, the voltage level can drop.

Improvements for Weakened Short Circuit Current and Low Capacity

Estonian electricity company Elektrilevi needed improvement for weakened short circuit current that appeared in power lines near Viljandi village, whereas Lithuanian customer suffered from low capacity and voltage variations. Our purpose is to ensure high and consistent-quality power distribution and for this, we offered Ensto Phase Balancer. The device increases short circuit current, improves protection devices´ operation time, reduces unwanted neutral wire current and maximizes the existing low voltage capacity.

By installing Phase Balancer it was possible to indicate how fast and cost efficiently the power quality problems can be solved instead of renewing the whole power line. At these locations, installations were ready within a couple of hours and devices were ready for use.

The results after a couple of months after installations:

  • Short circuit currents have increased and almost doubled compared to situation before installation.
  • Voltage variations and flickering indexes (Pst and Plt) have improved significantly.
Phase balancer in Estonia, 2018.

Facts

Customer
Estonian distribution system operator (DSO) Elektrilevi

Location
Estonia and Lithuania

Customer's Need
Improving power quality and stability in low voltage networks without extensive infrastructure upgrades in the Baltic region

Ensto's Solution
Phase Balancer​

The Value the Solution Brough to the Customer
The solution improved power quality and stability efficiently, avoiding the need for costly infrastructure upgrades.

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