NOJA Power Announces WebSockets API for RC Series Recloser Control Platforms, Delivering Scriptable Fleet Management at Utility Scale

Brisbane, QLD – Q1 2026 – NOJA Power today announced the upcoming release of a secure, standards based WebSockets API for its RC series recloser controllers, empowering utility engineers to script and automate fleet wide operations over authenticated HTTPS connections. The new API enables individual settings updates, programmed data retrieval, and bulk firmware upgrade workflows, streamlining modern distribution automation programs and reducing total cost of ownership.

“With our new WebSockets API, the NOJA Power RC series control offers unparalleled flexibility and significant cost savings in fleet management,,” said Neil O'Sullivan, Group Managing Director at NOJA Power.

“Utilities can now orchestrate settings, data and firmware at scale—securely—using the same controller that’s already proven in the field.”

What’s new: Secure, scriptable control at scale

• Secure by design: The RC series webserver stacks TLS/SSL with WebSockets (RFC6455) to provide a full duplex, authenticated channel over HTTPS, giving utilities encrypted, standards based connectivity for engineering automations.
• Comprehensive data access: Engineers can read, write, bulk read and bulk write IEC 61850 modeled process data via the Relay Data Protocol, including watch/broadcast subscriptions for change events. This supports everything from parameter audits to coordinated settings updates across groups of devices.
• File and settings operations: The Relay Control Protocol enables secure file transfer with integrity verification (SHA 256 hash), directory listing, and the Apply Setting workflow to validate and apply configuration files already staged on the device.
• Fleet friendly firmware: Utilities can validate and install firmware packages programmatically, with explicit error handling, pre condition checks, and status reporting—ideal for bulk maintenance windows.
• Historian on demand: Programmatic access to on device logs (system, kernel, event, close/open, change, load/fault profile) enables scheduled exports and targeted investigations without manual retrieval.

How it helps utilities

• Automate routine work – Replace one off, manual tasks with scripts (Python, PowerShell, Go, etc.) that call the API to push settings, check health, and retrieve logs on a cadence of your choosing. (WebSockets JSON messages, request/response semantics and event notifications simplify program flow.)
• Shorten outage windows – Coordinate bulk firmware updates safely with pre checks (battery capacity, AC supply status, HOT LINE TAG state, mode alignment) handled by the device, reducing failed attempts and truck rolls.
• Improve compliance & visibility – Use historian queries and exports to feed enterprise analytics, audit trails and regulatory reporting, with server side filtering, paging and multi log selection.
• Scale with confidence – The protocol supports fragmented data and file transfers, predictable timeouts and heartbeats (ping/pong), enabling reliable operation across utility WANs.

How it Works

• Protocols & structure:
• Relay WebSocket Protocol: framing, routing, request/response semantics, events and capability audit.
• Relay Data Protocol: IEC 61850 SCL types, bulk operations, watches/broadcasts, compare template.
• Relay Control Protocol: file get/set/delete, apply settings, configuration package install/export, simulation, firmware verify/install with SHA 256 checks.
• Relay Historian Protocol: structured queries (select/from/where/order/limit/offset), multi log reads and exports.
• Security & integrity: TLS/SSL transport; per operation permissions; SHA 256 file hashing; explicit authorization states returned in replies.
• Resilience & performance: Heartbeats (ping/pong ~10s), configurable timeouts, service intervals, and fragmented data/file frames for large transfers (with strict error codes for frame count/total).

Availability

The WebSockets API for NOJA Power RC series will be available in Q1 2026. Existing RC series users will be able to adopt the feature via a supported firmware release and enable it on secure networks consistent with their cybersecurity policies.