KSTAR EPOWER — industrial transformer-based UPS 10–800 kVA 3:3
KSTAR EPOWER is a transformer-based online UPS rated 10–80 kVA and 100–800 kVA with three-phase input and output for industrial and control systems. Input and output isolation transformers, up to 6 UPS in parallel. More than 30 000 units sold.
- Power
- 10–80 kVA and 100–800 kVA
- Phase configuration
- 3:3
- Power factor
- output 0.9
- Topology
- online, with input and output isolation transformers
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
USK ENERGY supplies KSTAR equipment as an official partner of the manufacturer. All KSTAR products
Description
KSTAR EPOWER is an industrial transformer-based online UPS rated 10–80 kVA and 100–800 kVA. Input and output are three-phase (3:3), and the output power factor is 0.9. The series is used in industrial and control systems, where the equipment operates in harsh conditions. More than 30 000 units have been sold. The manufacturer notes its resistance to shock loads and a clean sine wave output.
The topology is classic online, with double conversion. Isolation transformers are fitted at the input and at the output, galvanically separating the load from the mains. The output voltage has the form of a clean sine wave. This design is appropriate where the mains is unstable and strict requirements are placed on powering critical equipment.
For the 10–80 kVA models the overload capability is given: the UPS carries a 110 % load for 60 min, 125 % for 10 min and 150 % for 1 min. After that it transfers to bypass. The power factor of 0.9 is advantageous both for the consumer and for the mains. Power is increased by parallel operation of up to 6 units in an N+X configuration, and this increases both the system power and its availability.
The series complies with the IEC EN 62040-3 standard. The specific dimensions, the number of rectifier pulses and the weight depend on the size, so they are specified on request. When selecting a power from the ranges 10–80 and 100–800 kVA, the calculated load and the redundancy requirements of the site are checked. Production in two ranges, 10–80 and 100–800 kVA, covers needs from small switchboard rooms to large process sites. Input and output isolation is useful where the load is sensitive to mains disturbances, and parallel operation of up to 6 UPS gives a way to increase power without replacing equipment. A clean sine wave is needed by control systems, automation and instrumentation. The choice between the two ranges should be made by the load current and the calculated battery backup time. The bypass modes and the overload parameters for the 10–80 kVA models are given in the specification, and for higher powers they are specified. The calculation is made by the active power in kW and not by the apparent power in kVA.
Technical specifications
| Power | 10–80 kVA and 100–800 kVA |
|---|---|
| Phase configuration | 3:3 |
| Power factor | output 0.9 |
| Topology | online, with input and output isolation transformers |
| Overload | 110 % / 125 % / 150 %: 60 / 10 / 1 min (10–80 kVA) |
| Parallel operation | up to 6 UPS |
| Standard | IEC EN 62040-3 |
Request a price and lead time
KSTAR EPOWER — industrial transformer-based UPS 10–800 kVA 3:3. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What power ratings are KSTAR EPOWER available in?
The series covers 10–80 kVA and 100–800 kVA with three-phase input and output (3:3). The output power factor is 0.9.
How many KSTAR EPOWER UPS can be connected in parallel?
Parallel operation of up to 6 UPS in an N+X configuration is allowed. This increases both the power and the availability of the system.
What overload capability does KSTAR EPOWER have?
For 10–80 kVA an overload of 110 % lasts 60 min, 125 % 10 min, 150 % 1 min. After that the UPS transfers to bypass.
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