Lovato PMVF60 interface protection system for three-phase low and medium-voltage generation installations, featuring dual-threshold voltage and frequency protection, ROCOF and vector shift monitoring.
£2,018.01
The Lovato PMVF60 is a multifunction interface protection system unit designed for local electricity generation systems connected in parallel with low-voltage or medium-voltage public distribution networks. It continuously monitors the electrical supply and controls the external interface device when voltage, frequency or grid stability conditions move outside permitted operating limits.
Developed in accordance with the SHAMS Dubai DRRG requirements of the Dubai Electricity and Water Authority and the technical requirements of the Saudi Electricity Company, the PMVF60 is suitable for three-phase systems with or without a neutral conductor. It supports both direct low-voltage measurement and medium-voltage monitoring through suitable external voltage transformers.
In addition to dual-threshold minimum and maximum voltage and frequency protection, the unit provides rate of change of frequency (ROCOF) and vector shift monitoring. These functions help detect loss-of-mains and unstable grid conditions, making the PMVF60 ideal for photovoltaic, wind, cogeneration and distributed energy installations throughout the Middle East.
Local electricity generation systems must be disconnected from the public network when grid conditions become unstable or move outside authorised limits. The Lovato PMVF60 continuously supervises voltage, frequency and loss-of-mains parameters, operating the external interface switch whenever a configured protection threshold is exceeded.
The addition of ROCOF and vector shift monitoring helps identify rapid grid disturbances that may not be detected through voltage and frequency thresholds alone. This comprehensive protection approach supports dependable operation of renewable energy plants while helping prevent unintended islanding and unsafe energisation of the distribution network.
| Manufacturer | Lovato Electric |
|---|---|
| Series | PMVF |
| Model | PMVF60 |
| Product type | Interface protection system unit |
| Application | Low and medium-voltage distributed generation systems |
| System type | Three-phase with or without neutral |
| Network voltage | 230 / 400 V AC |
| Rated auxiliary supply | 100–240 V AC / 110–250 V DC |
| Rated frequency | 50 / 60 Hz |
| Current transformer input | 1 A or 5 A secondary |
| Relay outputs | 2 |
| Voltage protection | Dual-threshold minimum and maximum voltage |
| Frequency protection | Dual-threshold minimum and maximum frequency |
| Loss-of-mains protection | ROCOF and vector shift |
| Measurement method | True RMS |
| Self-test function | Integrated automatic protection test |
| Terminal type | Removable screw terminals |
| Maximum terminal tightening torque | 0.8 N·m |
| Mounting type | Modular DIN rail mounting |
| Housing width | 6 modules |
| Protection rating | IP40 front / IP20 terminals |
| Dimensions (W × H × D) | Approximately 108 × 105.4 × 63 mm |
| Weight | Approximately 470 g |
| Certifications | SHAMS Dubai DRRG and Saudi Electricity Company technical requirements |
| Conformity | IEC/EN 60255-26 and IEC/EN 60255-27 |
| HS Code | 85364900 |
The PMVF60 monitors the electrical connection between a local generation system and a public low or medium-voltage network. It controls an external interface device when abnormal grid conditions are detected.
The unit is suitable for three-phase 230 V and 400 V AC systems with or without a neutral conductor. Medium-voltage systems can be monitored through suitable external voltage transformers.
ROCOF protection monitors the rate at which grid frequency changes. A rapid frequency change may indicate a loss-of-mains condition, allowing the PMVF60 to initiate disconnection of the generation system.
Vector shift protection detects sudden changes in the phase angle of the electrical supply. These changes can indicate grid disconnection or instability and cause the interface protection system to operate.
The PMVF60 is designed for applications requiring compliance with SHAMS Dubai DRRG and Saudi Electricity Company technical requirements. It also conforms to IEC/EN 60255-26 and IEC/EN 60255-27.
Lovato PMVF interface protection systems are used by renewable energy specialists, electrical engineers and panel builders to provide dependable grid supervision, loss-of-mains detection and disconnection control for distributed generation installations.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...