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Mecc-Alte - Model MC400 -MC400 Mains Parallel Controller for Multiple Genset
The MC400 controller is used where one or more mains supplies are required to parallel with the GC400 generator bus. The MC400 provides both mains monitoring and automatic transfer switch control functions (AMF). In addition it can be configured to provide both forward and back synchronizing with the mains supply and genset bus, allowing a `no-break` transfer in either direction.
While the generators are in parallel to mains, the MC400 monitors the incoming mains supply and should a failure be detected the mains circuit breaker will be opened to isolate the genset bus from the mains.
The MC400 provide control of both a Mains Circuit Breaker (MCB) and a Master Gensets Circuit Breaker (MGCB).
The MC400 will synchronize all gensets (controlled by a GC400 parallel controller) to the mains, with a soft transfer of the load from the gensets to the mains, thus avoiding any blackout on the load.
The embedded `gensets management` logics will allow selection of the number of running sets according to the load, and integrates perfectly with the same load management present in the GC400 parallel controllers.
The MC400 can be combined only with a GC400 parallel controller. In addition, if the plant includes a tie breaker, it can be controlled by the BTB200 controller. Communication between devices is managed with a single CANBUS connection (PMCBus).
- Start/stop commands for the generators via the PMCBus
- An internal synchronizer with voltage, frequency and phase differences control
- Management of active power setpoints for the generators, to allow the gradual transfer of the load
- Management of power factor setpoints for the generators, when operating in parallel with the mains
- Fixed power control when in parallel to mains (BASE LOAD), with the power setpoint for the generators adjustable by parameter or by analogue input
- Variable power control when in parallel to mains (IMPORT EXPORT, or variable kW on the generators to guarantee a fixed power on the mains), with power setpoint for the mains adjustable by parameter or by analogue input
- The loss of mains protections, to isolate the generators from the mains in case of failure of the mains itself
- The LOAD SHEDDING function (non-priority loads disconnection), with 4 available levels
- The PEAK SHAVING and PEAK LOPPING functions (start of generators due to excessive demand of the load from the mains)
- Embedded alarm sounder.
- Multi-language display (EN, IT. FR, PT, ES. RU]