Fault isolation and power restoration motion picture
For more information, see the News section beneath
Power System Services & Relay Protection
Our consultants are specialised on relay and protection applications for primary substations, high voltage direct current (HVDC) and connecting new energy sources to the grid
News
14/7 2022
Fault isolation and power restoration
We have now made a short movie to visualize fault isolation and power restoration.
In this movie, we use our upgraded simulation panel to simulate a line fault. The two IPC devices on both sides of the fault open their circuit breakers and command a closing of the open point in a split second for the shortest possible disturbance of affected customers.
14/6 2022
Casted Split Core Current Transformer
Another customer case has resulted in a powerful split core current transformer of casted type for larger cable diameters. The secondary current cable is shielded to minimize electromagnetic disturbances.
Assembly on the primary cable is done without any tools.
IPC4020 and IPC4020exp has already 16 binary inputs and 8 binary outputs - but in some cases more than that are needed. PDCIO is a compact and scalable I/O extension for your IPC when there are plenty of I/O in the secondary substation.
PDCIO is configured using the web settings of the IPC, both locally in the secondary substation and at the remote control location.
8/3 2022
LoRaWAN interface
The new PxL is a communication interface for LoRaWAN 868 MHz. It has a serial interface to connect to the IPC402x series of fault detectors.
Please contact us if you need a cost-efficient data acquisition using LoRaWAN.
The Finnish technology company and family business Ensto has acquired a majority stake in Protrol AB. The transaction brings growth opportunities for both companies, their personnel, customers and partners. Our daily operations and cooperation with our customers and partners continue as usual in both companies.
Protrol will operate under the name Ensto Protrol AB, and Torbjörn Karlsson continues as Managing Director.
Protrol Engineering AB is not affected by the transaction.
It is always nice to welcome new customers - however, it is extra rewarding to sign a framework agreement with our existing customers again. We are very grateful for continued trust.
3/12 2019
New expandable fault detector
IPC4020 is our newest fault detector for overcurrent and earth faults with integrated remote terminal unit functionality.
The basic version is designed for a typical secondary substation with up to four objects. It can also be ordered with expansion. With expansion it can perform fault detection of three separate objects.
In the Nordics, Protrol is well knowned to have the most efficient solution to identify earth faults in high impedance grounded networks.
The method is also useful in isolated networks, a fact that was thoroughly discussed in a seminar arranged by State Grid in September. Protrol is grateful to the hosts and all the interested listeners that participated during the seminar.
5/5 2019
Automatic Fault Isolation and Power Restoration in Härryda Grid
Protrol has together with Härryda Energi in Sweden performed primary faults in Härrydas "Self-sectionalizing grid", an open loop with eight secondary substations equipped with circuit breakers and distributed fault isolation.
IPC, the detectors with remote terminal function, identified the faulty cable segmen fast and distinctly, allowing the circuit breakers in the proper secondary substations to isolate the fault, before the feeding primary substation operated. Finally the open loop was closed, keeping power to the end users.
7/12 2018
Protrol moves to a new larger office!
Protrol moves to larger and more adequate facilities in Mölndal. Our new address from the 7th of December 2018 is:
Protrol AB Alfagatan 3 431 49 Mölndal SWEDEN
ERA nr 2 2017 cover
10/3 2017
Protrol first page news in ERA
Article in ERA about Protrol and automation in the distribution network!
9-12 May 2017 it is time for Elfack again. We will be in the exhibition boot B09:82, and we would be delighted if both existing customers and potential new customers can visit us for a chat!
...Our products increase the availability of your grid
About Protrol AB
Protrol is a product and consulting company within power and automation technologies for power grids.
Protrol's products are developed for cost effective control, supervision, and fault detection in both small and large secondary substations. The products are based on patent protected technology and are manufactured in local markets.
