• Elmeasure India Private Limited

Intelligent Automatic Changeover

EIMeasure's Intelligent Automatic Changeover With Current Limiter (iACCL) allows supply from mains as long as the load current is below the programmed current. When the mains supply fails and stand by generator supply is on, it connects the DG power to each consumer in sequence and starts monitoring its load. Whenever the load current exceeds the allotment, power is automatically switched off for 10 seconds, and automatically restored. This cycle repeats for 5 times each time with double the time (20, 40, 80 and 160) and then enters into lockout mode until it is 'reset' manually. Apart from over load on EB and DG protection it also protects against over voltage from DG side. Features: microcontroller based automatic source changeover with neutral isolation; DIN rail/surface mountable for single phase and surface mountable for 3-phase; SMPS based design for low power consumption; intelligent re-connection once trip has occurred due to either over voltage or over load; manual reset provision when in sleep mode for restoring power supply; energy, current, voltage measurement for DG and current measurement for EB; programmable threshold setting for both source independently; over voltage protection for DG; start time programmable for each unit to avoid loading the generator at a time; intelligent tripping: inverse curve (higher the overload faster the trip); automatic trip if sum of power circuit and lighting circuit is >40A (single phase); individual phase overload monitoring (any phase > set current, it trips); and patented alpha numeric display.