Protection Relay – VIP45

VIP45
VIP45 protection relays are designed for the protection and operation of MV/LV utility
substations up to 200 A primary belonging to electrical distribution networks in industrial installations.
VIP45 are protection relays with a self-powered supply. They are powered by their current
sensor and operate without an auxiliary power supply.
 The VIP45 protects against phase faults and earth faults.
VIP45s are available in 2 versions: 100 A and 200 A.
Main Advantages of VIP45s
VIPs are part of a complete protection chain:
 This protection chain cannot be separated and includes the dedicated current sensor, the VIP
protection relay and the Mitop trip unit.
 Use of the dedicated sensor means the complete protection chain performance can be guaranteed.
No sizing study is necessary when choosing the sensor. The sensor dedicated to VIP operation is dual
core type, which provides the power supply and the metering signal separately.
VIPs are easy to install:
 They are compact.
 The connection terminals are clearly identified.
 The sensor and Mitop trip unit connections are prefabricated.
 The settings are entered via adjustable switches, using a screwdriver.
VIPs are robust:
 The case is made of insulating material.
 The unit can withstand harsh environments:
 Front panel degree of protection: IP54
 Range of operating temperatures: from —40…+70°C (—40… +158°F)
VIP45 Applications
VIP45s are suitable for substations without an auxiliary power supply. They are dedicated to
protecting MV/LV transformers.
They offer the following functions:
 Phase overcurrent protection
 Earth fault protection
 Current metering display