• Substation automation, protection and control

    Substation automation, protection and control

INGEPAC™ EF VR allows voltage regulation in power transformers with tap changers, keeping the output voltage of the transformers steady and sending the signals to raise or lower taps to the tap changer.

INGEPAC™ EF VR is suitable to operate independently or in parallel configurations, up to 5 transformers connected to the same busbar. The communication between the voltage regulators will be carried out through IEC 61850 GOOSE messages.

In order to monitor the status of the transformer and control its useful life, INGEPAC™ EF VR allows the monitoring of oil temperature, which can be collected either through RTD inputs or through mA input.



  • Automatic voltage regulator (auto / manual)
  • Independent or parallel operation up to 5 transformers
  • Regulation modes:
    • Master / slave
    • Circulating current minimization
    • Load Drop Compensation LDC (LDC-Z and LDC-R&X)
  • Operations verification
  • Tap position capture by digital input (simple or BCD) or mA input
  • 49T RTD temperature monitoring (optional)
  • IEC 61850 native platform
  • PRP, HSR or fail link redundancy communications
  • IEC 61131-3 logics
  • Protocols adjustable by setting: IEC 61850, DNP 3.0, IEC 870-5-103, PROCOME
  • Synchronization IEEE 1588 v2 (PTP), SNTP or IRIG-B
  • Cybersecurity under IEC 62351, IEC 62443 and IEEE 1686-2013 standards
    • Managing user accounts
    • Role-based access control (RBAC)
    • Number of log on attempts controlling
    • Session management
    • Audit and security logs (syslog)
    • Communication ports enabling / disabling
    • SW and FW updates managing
    • Cryptography (HTTPs, sFTP, SSH, CMS/PKCS#7)
    • Secure access to the website (HTTPs) and sFTP
    • Malware protection
    • Firewall
    • Security certificates (LDAP)



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