Question 1

What is the difference between a DC UPS and an industrial battery charger?

Accepted Answer

A DC UPS combines a rectifier, a battery charging stage and a seamless DC changeover circuit in one enclosure, so the load never sees an interruption when AC mains fails. An industrial battery charger is optimised for the battery: it manages float, boost and temperature-compensated charging profiles for large lead-acid, NiCd or lithium banks, typically feeding a separate DC distribution board. Substations and switchgear rooms usually specify a charger plus battery plus distribution, while remote cabinets and OEM machines more often specify an integrated DC UPS.

Question 2

Can Helios design a non-standard power supply for our specification?

Accepted Answer

Yes. More than half of the systems we ship are engineered to a customer specification. Our engineering teams handle voltage and current re-rating, custom alarm and comms mapping (DNP3, Modbus RTU/TCP, SNMP, dry contacts), rugged and shock-mounted enclosures, conformal coating, extended temperature operation and factory acceptance testing witnessed by the client or their consultant.

Question 3

Which communication protocols are supported for SCADA integration?

Accepted Answer

Our controllers and monitored power systems support DNP3 (serial and TCP outstation), Modbus RTU and Modbus TCP, SNMP traps, plus configurable volt-free alarm contacts for legacy RTUs. Protocol conformance is bench-tested against a DNP3 outstation test set before dispatch.

Question 4

Do you provide commissioning and after-sales service in the field?

Accepted Answer

Yes. Regional service teams in Australia, New Zealand, Singapore and Dubai provide installation supervision, commissioning, battery capacity testing, preventive maintenance, spares holding and repairs. Our Helios Priority programme covers prioritised response, stock allocation and lifecycle support for asset owners with fleet-wide standardisation.

Question 5

How long are spare parts and technical support available after purchase?

Accepted Answer

We design for long infrastructure lifecycles. Legacy platforms are supported with spares, drawings and repair services well beyond typical commercial product cycles, and obsolescence notices with drop-in replacement guidance are issued in advance so asset owners can plan capital works.