EGIP Control System

We recently designed and constructed an Embedded Generation Interface Protection (EGIP) system for a 500 kWp Solar Photovoltaic installation.

An EGIP Protection System is a requirement for renewable generation systems equal to or greater than 50 kW, such as solar PV, wind, or hybrid installations.

For systems larger than 50 kW the potential impact on the electrical network is significantly higher, uncontrolled renewable generation can cause safety risks, equipment damage, or grid instability.

Grid operators require proven disconnection within defined time limits. A protection relay provides independent, reliable, and fast isolation.

The primary role of an EGIP system is to protect the grid electrical network, generation equipment, and personnel by ensuring the renewable generator / generators disconnect safely under abnormal network conditions. These protections prevent the renewable generator from continuing to operate when the grid is unstable or disconnected.

☑️ Over voltage protection

☑️ Under voltage protection

☑️ Over frequency protection

☑️ Under frequency protection

☑️ Loss of mains (anti islanding) protection

☑️ Rate of Change of Frequency (ROCOF)

☑️ Vector shift protection

For renewable generation systems above 200 kW it may also be necessary to include neutral voltage displacement (NVD) and reverse current protection.

Panel Assembly

Form 4 Type 3

✅ Functional units (incoming devices, outgoing feeders, protection devices) are separated from each other

✅ Busbars are separated from functional units

✅ Each circuit is individually segregated to prevent faults spreading

A Form 4 Type 3 assembly provides individual separation of all functional units and busbars, with circuit terminals grouped with their associated devices, offering enhanced safety and operational reliability.