10 kV switching station with telecontrol: 17 КСО cells and a link to the dispatch centre (Zaporizhzhia)

The task

The client needed more than a switching station — they needed a site the dispatcher can see: breaker status, measurements and alarms flowing into the utility's control system automatically, with nobody driving out to read them.

That changes what the delivery has to contain:

• 17 bays at 10 kV — incomers, sectionalising, feeders and metering, each with microprocessor protection.
• A link to the dispatch centre — with its own power supply that survives a loss of voltage at the substation itself.
• Auxiliary supply with redundancy — the telecontrol must not go dark together with the site.
• Revenue metering in separate cabinets.

The solution

We built the complete station in a single order — from the cells to the communications link.

1. 10 kV switchgear — 17 КСО-Е cells.
Cells of 3000×900×1000 mm: vacuum circuit breakers, microprocessor protection relays on the fronts, busbars, current and voltage transformers. Main-circuit current is 630 A on feeder bays and 1000 A on the section bays.

2. The telecontrol panel — the reason the package exists.
Its stated purpose in the passport: connecting the substation to the utility's control and automatic data processing centre. Inside it is not just a modem:

• two electronic data acquisition modules (status and measurement telemetry);
• a managed switch with 24 Gigabit Ethernet ports + 4 SFP+ ports;
• a firewall — the link to the dispatch centre is protected, not merely connected;
• an uninterruptible power supply with two batteries, plus two 24 V power supplies;
• a surge arrester on the panel incomer;
• an SNMP monitoring module for the panel itself.

In other words, the substation reaches the control system on redundant power over a protected link — and reports its own condition.

3. ЩСН auxiliary-supply board with automatic transfer — supply for control circuits, heating and lighting, switching to standby automatically.

4. Two revenue metering cabinets, ШУ-5 and ШУ-6, rated IP31.

For designers: the typical solutions "10 kV switching station on КСО with vacuum breakers and telecontrol" and "switching station telecontrol".

Figures (from the passports)

КСО-Е cells (17 pcs), positions 1–17

Telecontrol panel, serial No. 173732

ЩСН auxiliary board with ATS, serial No. 173729: 380 V / 50 Hz · 40 A · control circuits ~220 V · IP31 · 1000 × 600 × 300 mm · up to 40 kg.
Metering cabinets ШУ-5 (No. 173731) and ШУ-6 (No. 173730): 380 V / 50 Hz · 5 A · IP31 · 1600 × 600 × 200 mm · up to 60 kg.

Total in the order: 21 units — 17 КСО cells + telecontrol panel + ЩСН with ATS + 2 metering cabinets.

What makes this site different

Most switching stations are supplied as hardware: cells, busbars, protection. Here the same order delivered both the station and its digital link to the outside world — on redundant power, with the channel protected. For the client that means one contractor for the whole site instead of two (switchgear builder and communications people separately), and a single party answerable for making them fit together.

Photo report: the station installed on site

We'll cost your switching station together with its telecontrol

Send us the single-line diagram and your utility's data transfer requirements — we'll assemble the package: cells, protection, auxiliary supply, metering and the panel that links to the dispatch centre.