Quadruped robot climbing steps beside a high-voltage transformer while a control-room operator watches.

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Accelerating quadruped inspection for earlier fault detection

A four-legged Physical AI robot walks your high-voltage substation with RGB vision, 3D LiDAR, thermal and partial-discharge sensing, and your control room checks each finding.

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High-voltage substations mix uneven terrain, energized equipment and dozens of points worth checking every week.

WHY THIS AUTONOMOUS QUADRUPED INSPECTION FOR ELECTRICAL SUBSTATIONS CHALLENGE?

Wheels stop at gravel, cable trenches and steps

Many inspection points sit where wheeled robots struggle and people face arc-flash risk. A quadruped follows set routes and checkpoints over rough ground, and an operator confirms each anomaly before anyone goes on site.

Key benefits

Multimodal Inspection on Every Route

One robot carries four sensing modes, so a single round catches visual, thermal and electrical signs of trouble.

Workers out of the hazard zone

The robot reaches energized bays and rough ground, and your technicians step in after a confirmed finding.

Inspection on a steady rhythm

Autonomous routes repeat the same checkpoints the same way, which makes readings comparable week after week.

Faults escalated sooner

Thermal hot spots and partial-discharge signals reach the control room during the round, with images attached.

A pattern you reuse across substations

Routes, checkpoints and anomaly rules carry over to the next site with little rework.

How NTT DATA helps

01

Equip the quadruped for the job

Quadruped robotics with RGB vision, 3D LiDAR, thermal imaging and partial-discharge sensing, configured for your equipment and risks.

Robotics engineer fitting a thermal camera onto a four-legged substation inspection robot.

02

Map routes and checkpoints

3D LiDAR maps the yard, and NTT DATA defines the autonomous inspection routes, stop points and the reading each checkpoint needs.

Aerial view of a substation yard with a quadruped robot following its autonomous inspection route.

03

Analyze anomalies with computer vision

Computer vision and thermal analysis compare each reading with its baseline and flag gauges, connectors or insulators out of range.

Ceramic insulators and connectors on substation equipment, the checkpoints a robot analyzes with computer vision.

04

Verify remotely before dispatch

Control-room teleoperation lets an operator steer the robot for a closer look and confirm a finding before a crew drives out.

Control-room operator using teleoperation to verify a substation anomaly through the robot’s camera.

05

Select hardware on neutral terms

NTT DATA evaluates robot and sensor platforms from different suppliers and fits the combination your substations need.

Engineers comparing legged inspection robots from different suppliers on a test track.

Quadruped robot sensor head with thermal camera, 3D LiDAR and RGB lens laid out for maintenance.

Proven impact

Earlier warnings from every round

The pattern pairs autonomous rounds with human checks, ready to validate on your own substations against your own baselines.

Results that matter

Targets for your quadruped pilot

Objectives come from your current inspection data and get validated route by route in a controlled pilot.

Fewer hazardous site entries

Routine high-voltage checks move to the robot, and crews enter energized areas for confirmed work.

Frequent and consistent inspection

The same checkpoints get read the same way on every round, by schedule or on demand.

Faster anomaly escalation

Thermal and partial-discharge findings reach the control room with evidence while the robot is still on site.

A reusable substation inspection pattern

Routes, rules and integrations scale from the first substation to the rest of your network.

Give every substation a closer look

Start the dialogue that brings autonomous quadruped inspection to your high-voltage substations.

Let's talk

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