1. Introduction
This instruction manual contains information regarding the correct use and handling of the BALTO in full safety and
should be considered an essential component of the BALTO System.
The BALTO family consists of 2 models :
The BALTO Modular with a capacity of 20,000 A expandable up to 40,000 A in a Master-Slave configuration
The BALTO Compact 4000 with a fixed capacity of 4,000 A
Unless the specific product name is mentioned, the description in this manual applies to both models.
This handbook must be at hand when using the System.
Please ensure to consult the chapter ‘Safety Regulations’. This chapter contains information regarding your personal
safety when using the system.
Read the ensuing safety regulations attentively before using this device.
This document is not contractual and the information that it contains corresponds to the technological status at the
time of its compilation.
Megger reserves all rights of modification or improvement of the product, which is described in this document
resulting from new product requirements.
The responsibility to inform oneself of the conditions and the requirements of the product rests solely with the
customer, regardless of the circumstances.
1.1 Product description
Railway operators involved in the service and maintenance of the railway network are challenged with testing DC
high speed circuit breakers and in particular when it comes to the control and the adjustment of the threshold circuit
breaker trip current, known as lds, and when comparing results to the circuit breaker OEM specification.
The solution is the Megger BALTO. Designed with the user in mind this innovative mobile Megger BALTO system
is useable for up to 40,000 A which meets the challenges of the manufacturers and users of DC high speed circuit
breakers.
The Megger BALTO DC High Current Circuit Breaker Tester was developed to generate very high and precise DC test
currents in order to carry out functional tests on DC high speed circuit breakers. These very high currents are injected
in the main circuit of DC high speed circuit breaker and allow control of the entire circuit including the measurement
elements, current converters and protection relays..
1.2 Features
To meet the needs of the market, Megger provides the innovative Megger BALTO system based on the requirements
of the DC high speed circuit breakers’ manufacturers and from various railway networks managers and users.
Each Megger BALTO system consists of ...
An operator terminal
Current Generator(s), sometime called power unit(s). One unit can generate a maximum current of 4,000 A
Batteries, ultra-cap(s) and battery charger(s).
Cable Set(s) – Connection(s) to the test piece
Both models are modular in design and are easily transportable. The system is easy to setup and straightforward to
connect to the device under test.
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Introduction