H Series 6-20k Online Sine-Wave Power Inverter
High-capacity online conversion from a wide 160-300VDC bus, with external isolation transformers and the surge withstand utility DC panels demand.
Product image
- Brand
- HighIdea
- Type
- Online double-conversion DC-AC inverter with external isolation transformers
- Typical applications
- Power plants, HVDC equipment rooms, utility DC panels, integrated AC/DC power systems
- Models in range
- 6 kVA, 10 kVA, 15 kVA, 20 kVA
- Category
- Power & Telecom Inverters
The H Series 6-20k brings the same online, fully isolated architecture as the 1-3kVA platform to higher capacities. It is built for utility DC panels and high-voltage DC equipment rooms where the DC bus is wide and the electrical environment is harsh.
Design notes
Double conversion gives a 0 ms transfer and keeps the output waveform independent of the input. Full AC/DC isolation means no back-feed noise into the DC system. A wide 160-300VDC input window tolerates battery bus fluctuation, while external power-frequency isolation transformers on the input and output add surge withstand and grounding flexibility.
The unit is intended to be integrated with the station DC panel as part of an AC/DC integrated power system: mains and DC are both available, the inverter supplies the load continuously, and an automatic restart restores output after the DC bus or mains returns to its valid range.
Configuration
Specify the DC bus range, the load kVA/kW and inrush, whether transformers are to be supplied, and the required autonomy. For smaller cabinets with a fixed DC bus see the H 1-3kVA; for a transformer-based rack platform designed for RTU and SCADA loads see the HT 1-20k.
Key Features
- Online design with 0 ms transfer between DC and mains
- Wide DC input window up to 160-300VDC
- External input and output power-frequency isolation transformers
- Full AC/DC isolation with no back-feed noise
- High surge and impact withstand for utility environments
- Designed to work with station DC panels in an integrated AC/DC power system
- Automatic start-up when DC or mains returns to the valid range
Applications
Utility DC panels
Integrated AC/DC supply for control, protection and signalling circuits.
Power plants & HVDC rooms
High-capacity isolated AC from a wide, fluctuating DC bus.
Industrial power rooms
Loads exposed to surges and switching transients.
FAQ
Why external isolation transformers?
What DC voltage range does it accept?
Can it be paralleled?
Related Models
H Series 1-3kVA
A compact rack-mount online inverter that turns a station DC bus into clean, fully isolated 220Vac power — with zero transfer time and no back-feed noise.
View detailsHT Series 1-20k
A transformer-isolated rack inverter built for utility DC panels — double conversion, zero transfer and static bypass for RTU, carrier and SCADA loads.
View detailsOnline DC-AC Inverters
Continuous inverter-fed output from a station or telecom DC bus — 0 ms transfer, full isolation and no noise fed back into the DC system.
View detailsSpecification reference
| Rated capacity | 6 - 20 kVA |
|---|---|
| DC input voltage | 160 - 300 VDC wide window |
| Output voltage | 220 Vac |
| Output waveform | Pure sine wave |
| Topology | Online double conversion, 0 ms transfer |
| Isolation | External input and output power-frequency transformers; full AC/DC separation |
| DC panel interface | No back-feed noise, no DC insulation alarm |
| Mounting | Rack / cabinet |
| Typical applications | Power plants, HVDC rooms, DC panels |
Specifications subject to the latest factory data. Final configuration is sized against the actual load, backup runtime and site power conditions — this table is for pre-selection only.