Dual Master Controller

Dual Master Controller

The DMC, or Dual Master Controller, is basically a CPU-in-a-box that allows two converters to be controlled simultaneously from the same CPU PCB (604170). Through two pairs of handshaking lines, the converters enter and exit High-Z mode when entering and exiting...
The Importance of Grounding

The Importance of Grounding

What is grounding? In an AC electrical system, the wire that carries away fault currents is called the ground wire. The equipment ground allows the GFCI (Ground-Fault Circuit Interrupter) to disconnect the circuit and prevents fault current from electrifying a...
Why Do You Need An Isolation Transformer Onboard?

Why Do You Need An Isolation Transformer Onboard?

Written by Eric Herman, Director if Engineering September 23rd, 2018 Every ASEA shore power converter contains an Isolation transformer. Why? The oldest and best reason in the book: Safety. By isolating your ship’s power system from the shore power, fault current...
Shore Power Problems Solved

Shore Power Problems Solved

It’s a common scenario: An evening on the boat enjoying the game is interrupted when yet another yacht arrives at the marina and connects to shore power. Suddenly, it’s like a brownout at home. Lights dim, the TV resets, A/C goes out, clocks start blinking...