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REMOTE OPERATION & MAINTENANCE

Let remote experts and on-site teams
share the same equipment evidence

Same asset · same evidence · same remote session · same outcome

Worksheet Status :: Ongoing CASE-2024-0518-0172
Associated assets Site-01 / Block-A / Cabinet-07 BESS-1250kW / 2612kWh
Security Status Safely isolated. Separation point DC-07/AC-03
Remote Session Created RO-ENG-0087 ↔ FLD-TECH-023
Live ETA 28 min Expected arrival 17:40
Authentication status To be validated 0 / 9 Completed

01 Service access and case integration

ALM
Alarming Event
AI
Predictive discoveries
PM
Plan an inspection.
KPI
Performance Discovery
REQ
Client / Project request
Unite as equipment-related cases CASE-2024-0518-0172

02 Remote evidence bag Same asset organization

Twist structure

EMS
PCS
BMS
HVAC
Rack-03
CAB-07
Cooling

Remote trends

Incidents and warnings Last 24 hours.

05-18 15:21:32 High temperature alert. The temperature in the DC cabinet is down.
05-18 15:20:10 Alarm Rack-03 Temperature deviation High
05-18 15:18:05 Alarm BMU communication anomaly
05-18 14:55:47 Hint Cool the fan down.
Asset positioning Site-01 / Block-A / Cabinet-07 / Rack-03
Device Information BESS-1250kW / 2612kWh
Recent service 2024-04-29 Parameter Inspection
Key photos 12 sheets

03 A case time between remote and site Line

One case spans request, authorization, remote diagnosis, on-site execution, recovery verification, and closure.
01 Case Creation 15:17
02 Remote Approval 15:21
03 Remote diagnosis 15:26
04 Programme of action 15:32
05 Authorization 15:34
06 Safety isolation 15:36
07 Fieldwork 15:40
08 Remote authentication 16:05
09 Case off 16:18
Remote expert Remote Engineering Center
Field team Site-01 Field Team

04 Secure remote session boundary Identity, authority, time and evidence are both controlled.

ID Role Identity RO-ENG-0087
MFA MFA & Approved Double + Approval
TIME Time Window 15:34 – 16:34
CMD Command Permissions Only specified devices
LOCK Interlock Verification Security conditions confirmed.
LIVE Real-time observation Status of ongoing feedback
AUD Evidence audit Unmissable
Session Number SESS-2024-0518-0088
Encryption TLS 1.3 / AES-256
Segregation Line / VPN
Permissions Least privilege / layered isolation
Role Identity: Remote access is bound to named engineers and explicit roles—no shared accounts or anonymous engineering sessions.

05 Worksheet and resource preparation Prepare fieldwork around real equipment

TEAM Personnel and skills 2 / Electrical + Battery
PART List of spare parts BMU module x 1
Temperature Sensor x 2
TOOL List of tools Insulation Tool
A watch.
Thermal imager
PPE PPE Insulation gloves.
Seat hat.
Goggles.
PATH Peripherals and corridors Entry Path
Operational space confirmation
LOTO Block Point DC-07
AC-03
PERMIT Work permit LOTO application
Approval completed
TIME Field Window 16:00 – 18:00
BACK Backup plan. Restore old pieces
Restore original parameters
Assets: Cabinet-07 / Rack-03
Operational level: Medium risk
Impact capacity: About 1.25 MW
Head of site: FLD-TECH-023
Remote expert: RO-ENG-0087

06 On-site execution and evidence collection Real action. Real measurement.

1 Sign in. 16:02
2 Isolation confirmed 16:06
3 Open the door. 16:08
4 Inspection and measurement 16:10
5 Replace Widgets 16:22
6 Tightening and Checking 16:30
7 Recharge test 16:36
8 Parameter confirmation 16:42

Measured data

Item Before work After the job Units Result
Ground resistance. 1.2 >100 MΩ Pass.
Rack-03 Temperature 52.6 34.1 °C Pass.
BMU Power 8.6 18 mV Pass.
Connect Twirl 6.1 6.1 N·m Pass.

Live photos

Replace Widgets

Widget Name BMU module
Old SN BMU-R03-20230211
New SN BMU-R03-20240511
Vendor TIANCHU

Drawing/ Screen

Type Control Drawing
Version REV-C
Status It's consistent.

07 Validation and transmission Remote expert and field team confirm

SAFE Security checks 16:46
FUNC Functional check 16:50
CMD Command Response 16:52
TEMP Temperature stability 16:55
ELEC Electrical authentication 17:00
LOTO Unblocked. 17:00 – 17:15
LINK Remote Connection 17:16
CLOSE Case closed 17:18
• Validation of conclusions: Through | Remote approval: RO-LEAD-003 | Site approval: FLD-SUP-001

08 Representation cases Verifiable comparison before and after maintenance

Before work Unusual

→

After the job &Normal

09 Service history and relapse governance Continuous improvement of the same asset

The asset service history

Time Sheet number Problem Process Result
2024-05-18 CASE-2024-0518-0172 Rack-03's high. Replace BMU Component Pass.
2024-04-28 CASE-2024-0428-0084 The fan turns abnormally. Parameters and windway checks Pass.
2024-03-12 CASE-2024-0312-0061 Communications vibrating Optimization of communication links Pass.

Trends in similar cases Last 90 days

Similar cases 7 cases
Main reasons Spread the heat aging / loose contact
High hair position Rack-03 / Rack-05
Recommended measures Increase frequency of inspections

Remote Knowledge Update

New knowledge entry: BMU temperature rise abnormality recognition
Update: Add dispersive component inspection and field measurement steps
Scope of application: Sit-01 All station
Other Organiser 2024-05-18

10 Boundaries and coordination with other platform capabilities

Upstream: surveillance / alarm

  • Real-time status and trends
  • Reports and incidents
  • Organisation
↔

Page: Remote O&M

  • Harmonization of Case and Asset Evidence
  • Safe remote diagnosis
  • On-site coordination
  • Restore Authentication
  • Service History and Knowledge Deposition
↔

Downstream: Assets / Security / Maintenance

  • Asset health and projected maintenance
  • Worksheets and spare parts
  • Security audit
  • Long-term improvements
Boundary principles: Remote O&M is responsible for stringing “diagnostic-field action-validation-closure” into a Case, but not for Real-time Monitoring finding anomalies or BMS/PCS equipment-level protection.

11 Outputs Auto-archive, creating an auditable chain of evidence

CASE Case Intake Service access records
EVD Evidence Package Harmonization of asset evidence kits
AUTH Authorization Remote Authorization Record
LOG Session Log Remote Session Log
WO Work Order On-site work orders
FIELD Field Evidence Photos of the field and reality.
VERIFY Verification Report Joint Restoration Certification
CLOSE Closure Record Case closed.