The BTB Controller and DEIF AGC 150 Series: Synchronisation, Protection, and Power Management
In modern power systems, reliability and efficiency depend on advanced controllers that ensure synchronisation, protection, and monitoring. DEIF’s BTB controller and the AGC 150 series represent a comprehensive range of solutions tailored to various applications—ranging from bus tie breaker management to genset, mains, and hybrid control.
BTB Controller: Synchronising and Protecting Bus Tie Breakers
The BTB controller (Bus Tie Breaker controller) is designed to synchronise one breaker while protecting and monitoring the busbar. It plays a vital role in balancing loads, improving power distribution, and maintaining grid stability.
When integrated with DEIF’s Power Management System (PMS), the BTB controller can handle up to 8 bus tie breakers, enabling advanced load-sharing and seamless power transfer. This makes it particularly valuable in critical facilities such as:
- Data centers
- Industrial plants
- Marine vessels
- Utility substations
With real-time monitoring, operators benefit from enhanced fault detection, operational safety, and optimised energy use.
Overview of DEIF AGC 150 Controller Variants
The AGC 150 series is a flexible line of controllers designed for different power applications. Each variant is engineered with protection, synchronisation, and control functions that adapt to specific system requirements.
1. AGC 150 Mains Controller
- Synchronises one or two breakers (mains breaker and tie breaker).
- Protects and monitors the utility grid.
- Ensures stable power flow between mains and connected power sources.
- Ideal for facilities requiring seamless transition between grid and backup power.
2. AGC 150 Genset Controller
- Compact, slim design suitable for paralleling even small gensets.
- Provides full genset protection and control.
- Integrable into nearly all types of gensets.
- Optimises load-sharing, start/stop sequences, and efficiency in multi-genset operations.
3. AGC 150 Stand-Alone Controller
- Designed for non-synchronising applications.
- Provides all necessary genset protection functions.
- Known for its operator-friendly interface and reliability.
- Commonly used in single-unit installations where synchronisation is not required.
4. AGC 150 Hybrid Controller
- Tailored for hybrid power systems.
- Controls and protects installations combining PV (solar) and gensets.
- Enables renewable integration while ensuring backup power availability.
- Supports sustainable and cost-efficient energy operations.
5. AGC 150 Engine Drive Controller
- Provides engine start/stop sequences and protection.
- Supports fixed and variable speed functions.
- Suited for pump applications and other engine-driven systems.
- Ensures efficient and safe operation of engine-driven equipment.
6. AGC 150 Remote Display Unit
- Offers remote access and control of any master controller within the AGC 150 series.
- Operates via local network connection.
- Enhances incident response speed and operator convenience.
- Ideal for decentralised facilities and marine vessels.
7. AGC 150 PMS Lite Controller
- Designed for off-grid plants.
- Supports simple power management systems with up to 128 gensets.
- Provides scalable and efficient energy management in remote locations.
- Balances demand and supply to ensure reliable off-grid power distribution.
Why Choose DEIF Controllers?
- Scalability: From single gensets to complex hybrid and off-grid systems.
- Reliability: Proven track record in industrial, marine, and utility applications.
- Efficiency: Optimised power management for reduced fuel consumption and costs.
- Operator-Friendly: Intuitive design, easy installation, and simple configuration.
FAQs
Q1. What is the main function of the BTB controller?
The BTB controller synchronises one breaker and protects and monitors the busbar, enabling seamless load transfer and fault protection.
Q2. How many bus tie breakers can DEIF’s power management system handle?
DEIF’s PMS can handle up to 8 bus tie breakers.
Q3. Which AGC 150 controller is best for off-grid plants?
The AGC 150 PMS Lite controller is designed for off-grid operations, supporting up to 128 gensets.
Q4. Can the AGC 150 handle renewable energy integration?
Yes, the AGC 150 Hybrid controller manages installations with PV and gensets, ensuring efficient hybrid energy management.
Q5. Is the AGC 150 suitable for small gensets?
Yes, the slim design of the AGC 150 Genset controller makes it suitable even for small-scale genset operations.

