Customized power solutions for industries such as electric utilities, new energy, and industrial manufacturing.

Modular Industrial Earthing Transformer Rapid Deployment Solution

Vziman 01/16/2026

1. Scenario Task-Driven: Profile of Power Supply Challenges in Temporary/Emergency Scenarios

Temporary or emergency industrial scenarios typically feature three core characteristics:

High Timeliness Requirements: Initial power supply for infrastructure construction and emergency power restoration in disaster-stricken areas must be completed within hours.
High Uncertainty Factors: Variable site conditions (muddy terrain, narrow spaces, no permanent foundations) and temporarily determined power connection points.
High Safety Baseline: Temporary power systems must also meet earthing reliability and personal protection requirements (compliant with IEC 61936-1, IEEE C57).

Typical Task Examples:

Scenario	Task Objective	Pain Points of Traditional Methods
Infrastructure Construction Site	Power supply for initial pile drivers and lighting	Long time consumption for transportation of fixed transformers and foundation construction, delaying project schedules
Emergency Production Line Expansion	Connecting new equipment without affecting existing production	Long installation cycle requiring production shutdown for wiring
Post-Disaster Reconstruction	Rapid restoration of basic power supply for residents and industry	Harsh on-site conditions, with bulky equipment difficult to transport

Conclusion: Earthing transformers must be transformed from "fixed-installation equipment" into "mobile modular systems" to match the fast pace and variability of temporary tasks.

2. Modular Capability Decoupling: Splitting "Integrated Equipment" into "Combinable Functional Packages"

Adopting a functional modularization + structural unitization design concept, the traditional integrated earthing transformer is disassembled into independently transportable and rapidly assembled modules:

Module Type	Functional Positioning	Key Features
Magnetic Circuit Module	Provides core components of iron core and windings	Pre-packaged in shockproof transport cases, ready for on-site hoisting and immediate use
Oil Tank & Cooling Module	Insulating oil storage and heat dissipation	Quick-connect oil ports + leak-proof sealing, supporting rapid on-site docking
Earthing Impedance Regulation Module	Implements fixed/adjustable resistance or reactance earthing	Plug-in terminals, supporting switching between different earthing strategies
Intelligent Monitoring & Control Module	Monitors zero-sequence current, temperature, and oil status	Intrinsically safe enclosure, plug-and-play communication (compliant with IEC 61850-8-1)
Mobile Platform Module	Enables overall mobile deployment	Trailer/container-type chassis, transportable by forklift or crane

Advantages: All modules are factory-tested and qualified. On-site assembly only requires splicing according to interface standards, eliminating massive on-site assembly and insulation treatment, and greatly reducing installation time.

3. Rapid Deployment Process Chain: 8-Hour Closed Loop from Arrival to Power-On

The deployment process is standardized into a six-step process chain, ensuring "step-by-step execution and rapid delivery" in any temporary scenario:

Pre-Commissioning & Transportation (Completed Off-Site)

Factory-integrated module commissioning and tightness testing are conducted; impedance modules and monitoring modules are configured according to scenarios, with the whole system packed for transportation.

On-Site Positioning (≤ 1 h)：

The complete system is transported to the designated location via trailer or container chassis, with hydraulic leveling outriggers for rapid stabilization.

Module Docking & Wiring (≤ 3 h)

Mechanical and electrical docking of magnetic circuit, oil tank, cooling and earthing modules is completed using color-coded and foolproof interfaces;

Quick-lock high-voltage cable connectors (compliant with IEC 62271-211) are adopted, eliminating the need for on-site wire stripping and crimping.

Earthing & Safety Verification (≤ 1 h)

Connect to the temporary earthing grid; use a portable earthing tester to verify that earthing resistance ≤ set value (e.g., 10 Ω);

Inspect explosion-proof/protection sealing (IP65 or above) and rain cover installation.

Power-On Commissioning & Monitoring Calibration (≤ 2 h)

Close the low-voltage side switch, gradually boost voltage, and monitor zero-sequence current, temperature rise and oil level;

Calibrate intelligent monitoring module thresholds to ensure normal alarm functions.

Handover & Training (≤ 1 h)

Deliver quick operation cards and emergency power-off procedures to on-site O&M personnel to ensure safe temporary duty.

Total Cycle

≤ 8 hours (a reduction of nearly 89% compared with the traditional 72-hour process).

4. Multi-Dimensional Safety Assurance: No Compromise on Safety Standards in Temporary Scenarios

Even under temporary/emergency conditions, compliance with international earthing and electrical safety standards is mandatory:

Structural Safety: Shockproof transportation design + on-site wind resistance fixation (withstanding level 8 winds).
Electrical Safety: High-voltage connector anti-misplug design, electric shock protection (compliant with IEC 60903).
Earthing Safety: Real-time earthing resistance monitoring, with automatic alarm and load disconnection linkage when exceeding limits.
Environmental Safety: IP65 protection rating (IEC 60529), rainproof and dustproof, adaptable to variable outdoor climates.
Functional Safety: Intelligent monitoring modules feature self-test and fault indication functions to avoid "blind operation".

5. Value Closed Loop: From Rapid Deployment to Sustainable Emergency Capability

Timeliness: Power-on within 8 hours, meeting the urgent time window for initial infrastructure power supply, disaster area power restoration and production line emergency expansion.
Flexibility: Modular combination supports voltage classes of 10kV~35kV and multiple earthing methods (resistance/reactance/composite).
Safety: No compromise on earthing and electrical safety standards, ensuring personnel and equipment safety.
Economy: Eliminates civil engineering and long-cycle installation, reducing comprehensive deployment costs by approximately 40%.
Reusability: Modules can be disassembled and reused multiple times, suitable for enterprises to establish their own emergency power supply fleets.

6. Typical Case

Temporary Power Supply Project for an Overseas Infrastructure Construction Site

Task: The new port construction site required power supply for pile drivers and night lighting within 12 hours.
Solution: Deployed a modular earthing transformer (including 2 MVA capacity, adjustable resistance earthing module, and trailer platform), completing on-site deployment and power-on in 7.5 hours.
Results: Construction started 4 hours ahead of schedule, avoiding project delay penalties, with zero earthing safety incidents throughout the period.

7. Conclusion

Driven by scenario tasks, this solution breaks the constraints of traditional fixed equipment through modular capability decoupling, achieves the hard target of "plug-and-play, power-on within 8 hours" via a standardized rapid deployment process chain, and ensures the reliability and compliance of temporary systems with multi-dimensional safety assurance. It transforms industrial earthing transformers from "permanent facilities" into "rapidly deployable power quality and earthing safety tools", widely applicable to temporary/industrial emergency scenarios such as infrastructure construction, emergency expansion and post-disaster reconstruction worldwide, providing a replicable solution for enterprises to build efficient emergency power supply capabilities.

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