General information
The PSN-1100 auxiliary services panel is a multi-input, low-voltage 0.4 kV panel that receives power from several independent sources (two or more incomers from auxiliary-service transformers, plus, where required, a standby generator and a storage battery as an emergency source) and distributes it among the auxiliary-service circuits of a power plant or substation. A built-in ATS (automatic transfer switch) device monitors the state of the sources and automatically switches the load to the priority healthy source, ensuring uninterrupted power supply to control, signalling, lighting, cabinet and drive heating, ventilation, and battery charging/trickle-charging circuits.
The panel is manufactured to the customer's project: the layout, number and ratings of incomers and outgoing lines, rated currents of the busbars, ATS logic and apparatus set are selected to match the single-line diagram of the specific facility. The typical design of the PSN-1100/1200 series covers incoming, sectionalising and distribution (outgoing) panels — the specific design is determined by the technical specification. Typical example: two working incomers + a sectionalising link with ATS and a group of outgoing lines for lighting, heating and battery chargers. Structurally — a frame-type panel with two-sided access; switching and protection apparatus inside, instruments and control elements on the front door.
The panels are used to equip auxiliary-services switchboards at power plants, substations and power facilities. LK Energy Group is a manufacturer of switchgear equipment from Odesa (company since 2005, own factory since 2015). As equipment for voltages up to 0.4 kV, the panel is fitted with air-type and moulded-case circuit breakers (ACB/MCCB) — type and ratings per project.
| Parameter name | Value |
|---|---|
| Voltage | up to 0.4 kV |
| Number of incomers | two or more (per project) |
| Power sources | several independent, including battery as emergency source |
| Incomer switchover | ATS with priority source selection |
| Typical design | PSN-1100/1200 (incoming, sectionalising, outgoing) |
| Type of access | two-sided |
| Switching apparatus | air-type / moulded-case (ACB/MCCB), type per project |
| Rated busbar current | per project / TS |
| Short-circuit currents (Icw / Icu / Ipk) | per project / TS |
| Dimensions and weight | per project / TS |
The precise current ratings, number of incomers and outgoing lines, busbar cross-section, dimensions and weight are determined by the technical specification and the facility's single-line diagram.
Diagram grid
Description and purpose
The PSN-1100 is an auxiliary power panel rated up to 0.4 kV, designed for auxiliary-power switchboards at power plants and substations. Unlike a simple single-feeder panel, the PSN-1100 can accept several power sources — main, backup, and one from a battery — and, through a built-in ATS (automatic transfer switch), automatically selects the priority source, maintaining uninterrupted power to control circuits, relay protection and emergency lighting. The type of current, rated currents and specific design are determined by the project/technical specification. LK Energy Group is a switchgear manufacturer based in Odesa, in business since 2005, with its own factory since 2015, and builds the panel to match your single-line diagram.
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PSN-1100
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