The BALTO Modular DC high current circuit breaker tester was developed to generate, and inject into the circuit, very high and precise DC test currents in order to carry out functional tests on high speed DC circuit breakers. These very high currents are injected in the main circuit of DC high speed circuit breakers and allow control of the entire circuit including the measurement elements, current converters, and protection relays.
Designed with the user in mind, this innovative Megger BALTO system is useable for up to 4000 A, which meets the challenges of the manufacturers and users of DC high speed circuit breakers. To further meet the requirements encountered in the market, the BALTO Modular was subject to the specifications worked out on the basis of requests from high speed DC circuit breakers manufacturers and various railways/train operators and public transport companies. As such, This instrument has been developed specifically for testing DC high speed circuit breakers at rolling stock, tramways, and primary infrastructure.
Key Features
Control unit with user friendly operator terminal
Power unit(s): 4.000 A each
Power source from batteries, buffer through ultra-caps and battery charger(s)
Connection with the high speed DC circuit breaker by specific high current flex-cables
Current generator: DC/DC current converters
Current rising slope according to IEC 61992-2 (Traction Power Substations) and IEC 60077-2 (Rolling Stock)
Adjustable parameters of the circuit creaker trip current
USB and Ethernet RJ45 interfaces
BALTO Win – Communication software for PC
Bespoke connection for high speed circuit breakers
Registered international patents
Specification
Power supply
Mains input 120 VAC 60 Hz
230 VAC 50 Hz
Power consumption 120 VAC 60 Hz - 7.20 A
230 VAC 50 Hz - 3.50 A
Power supply voltage
Batteries and ULTRA-caps 12 VDC – 15.7 VDC
Power cord CEE 7/7 Plug to IEC 60320 C13, 2 m, 10 A, 250 VAC
Available ranges
System 4000 A - 20000 A per 4000 A unit System master/slave 24000 A, 32000 A, 40000 A
Complete Modular System
Weight: 249 kg (548 Ibs) for configuration with 5 Current Generator4000 A, excl. power cables
Max. No. of Current Generators: 5 (10 in master/slave configuration.)
Duration of injection: 2-5 sec
Accuracy of results: 1.5%
Control Unit
Offers the following features:
- Operator Terminal – Operation, control and management
- Communication interfaces
- Auxiliary supplies
Weight: 16.4 Kg
Dimensions: 500 x 480 x 230 mm
Functionality: HMI (Human machine Interface) and CPU
Screen Type: TFT touchscreen
Diagonal: 14.5 cm (5.7”)
Resolution: 640 x 480 pixels