Product detail

Details
Characteristics
Technical sheet

Charger - rectifier thyristor

ZGR MIT NG

High reliability charger - rectifier

ZGR MIT NG range, thanks to the robustness of its design, ensures a high-reliability continuous
current supply.

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Characteristics

ZGR MIT NG range consists of battery chargers – rectifiers of conventional thyristor technology, controlled by microprocessor, in single-phase and three-phase product versions.

ZGR has combined the proven reliability of thyristor technology with the microelectronics functionalities, offering the ZGR MIT NG range at a maximum level in terms of performance and features.

The ZGR MIT NG range ensures the user a quality continuous supply. ZGR’s wide experience in power electronics systems has allowed the design of a range of easily customizable equipment.

TECHNICAL SHEET

Galvanic isolation
Complete thyristor bridge
Automatic disconnection due to minimum battery voltage (LDV)
Voltage dropping device
Temperature and electrolyte level sensors
Hall effect current sensors
Customized output voltage filtering according to user specification
Thermomagnetic input protection
Overvoltage protection by varistors at input and output
Distribution adaptable to user requirements
Control and signalling • Battery voltage and load measurements • Charger, battery and load current measurements • Comprehensive monitoring and signalling of charger status • Local alarms with LCD and remote with relays • Communications and remote management gateway with the possibility of implementing different protocols: MODBUS, SNMP, etc
Battery management • Charge Ni-Cd (open) y Pb (open and sealed) • Battery and charger current limitation • Charging modes: » Ni-Cd and Pb open: flotation, fast charge, exceptional charge » Pb sealed: flotation, fast charge, automatic fast charge and manual charge

Technical sheet

TECHNICAL SPECIFICATIONS

Model	ZGR MIT NG 1	ZGR MIT NG 3

INPUT ELECTRICAL CHARACTERISTICS
Nominal voltage	230V+10-15% (Single-phase)	400V+10-15% (Three-phase)
Frequency	50/60Hz±5%
Power factor	0,7~0,9 (bajo pedido)

OUTPUT INPUT ELECTRICAL CHARACTERISTICS
Nominal voltage	12/24/48/110/125/220V
Ripple voltage with batteries	< 1%
Ripple voltage without batteries	<2%
Ripple current in batteries	≤5%
Voltage stability	± 1/2 % (with/without battery)
Dynamic regulation	< 2 % (10 – 90 % of charge)
Charger current limitation	100 % (up to 120 % optional)
Battery charge current limitation	Configurable
Transfer time	<300ms

COMMUNICATIONS
Monitoring	Websever TCP/IP, control panel
Communications	ModBus RS485

OTHERS
Active parallel	Optional (up to 2 units)
Dry contacts	4 (8 optional)
Protections	Overvoltage, over-temperature, current limitation, short-circuit, input/output high/low voltage
Cooling	Natural convection
Working temperature	0 to 45 ºC (50 ºC on demand)
Protection degree	IP 20 (on request up to IP54)
Noise level	<63dBA
Operating altitude	< 1000m without power loss (up to 4500 m on demand)
Relative humidity	0 - 95 % without condensation (up to 100% on demand)

STANDARDS
Marks	CE
General directives	EN 50178 (1998), EN 61000-6-4 (2001), EN 61000-6-2(2001), EN 61000-3-2, EN 61000-3-3, IEC 60146-1-1

Hybrid, robust and reliable solutions

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