Beckwith Electric M‑0115A AC Parallel Balancing Module

The Beckwith Electric M‑0115A is an AC parallel balancing module designed to automatically control the load sharing between two or more paralleled generators. It senses the real power (kW) output of each generator and adjusts the governor setpoints to equalise the load, ensuring stable parallel operation. This module is essential for multiple generator sets operating in island mode or in parallel with the utility.

The M‑0115A uses a solid‑state circuit to generate a bias signal that is proportional to the load imbalance. This signal is sent to the governor actuators of each generator, correcting any deviation. The module features adjustable droop and gain settings to match different engine and governor characteristics.

Key Features

• Detects kW load imbalance between paralleled units

• Provides ±5 VDC bias output for governor control

• Adjustable droop (0–10%) and gain

• Works with any generator set with compatible governor

• Isolated inputs for voltage and current sensing

• LED indication for active balancing

• Compact module for panel mounting

Technical Specifications

Inputs: 120 VAC voltage sensing, 1A or 5A current sensing; power supply: 120/240 VAC; output: 0–5 VDC or 4–20 mA; accuracy: ±2%; operating temperature: -20°C to +60°C; dimensions: 100 x 80 x 30 mm.

Applications

Used in multi‑generator paralleling systems for prime power, standby, and marine applications. The module ensures that each generator carries its proportional share of the load, preventing overloading and improving fuel efficiency.

Installation and Calibration

Mount the module near the generator control panel. Connect voltage and current signals from the generator’s CTs and PTs. Wire the bias output to the governor actuator. Calibrate the droop and gain settings during commissioning to achieve smooth load sharing.

Reliability and Maintenance

Solid‑state design ensures long life with no moving parts. Regular checks of connections and signal quality are recommended. The module is protected against transients and reversed polarity.

Why Choose the M‑0115A?

This balancing module offers a simple and cost‑effective solution for parallel generator control, backed by Beckwith Electric’s expertise. Its ease of installation and adjustment makes it a popular choice.

In summary, the Beckwith Electric M‑0115A ensures efficient and stable load sharing in paralleled generator systems, enhancing reliability and performance.