Transformer Protection and Monitoring with a Precision Transformer Marshalling Box
Transformer Marshalling Box
Type | Wall Mounted Enclosure |
Weather Proof | IP-55 Protection Relays Provided for WTI, OTI, Transparent Window on Door |
At Digital Electric, we design and manufacture high-quality transformer marshalling boxes that serve as the central interface point between protection relays, control wiring, and field devices associated with power transformers. Built for durability and efficiency, these boxes streamline transformer control and monitoring while enhancing safety and operational reliability.
As a leading transformer marshalling box manufacturer, we deliver custom-engineered solutions tailored to your site’s specific protection schemes and electrical standards, whether for power generation, transmission, or industrial applications.
Key Features
Rugged CRCA steel or stainless steel enclosures (IP52–IP65 rated)
- Terminal blocks for signal, protection, and control cable terminations
- Pre-wired interfaces for CTs, VTs, temperature sensors, and pressure switches
- Separate compartments for high- and low-voltage terminations
- Transparent internal layout for easy wiring access and maintenance
- Gland plates for efficient cable entry and routing
- Custom painting and powder coating for corrosion resistance
- Lockable, weatherproof design for indoor and outdoor installations
Ideal for Power Transformer Control and Protection Systems
Our transformer marshalling boxes are widely used in:
- Power generation stations
- Substations and grid distribution points
- Transmission and switching yards
- Industrial electrical networks
- Renewable energy transformer systems
These units act as a secure, organized interface hub, connecting various control, indication, and protection circuits to the transformer system with high reliability.
Custom-Built for Transformer Monitoring Requirements
Each transformer marshalling box we supply is built as per project-specific technical parameters:
- Designed to accommodate multiple input/output signals
- Support for RTD, oil temperature indicators, and pressure relief devices
- SCADA-compatible wiring for remote status reporting
- Segregated wiring layouts minimize interference and confusion.
- Engraved terminal identification and wiring diagrams included
- Available in wall-mount, pedestal-mount, or skid-mount designs
- Supplied fully assembled and factory-tested
Why Choose Digital Electric as Your Transformer Marshalling Box Manufacturer?
- Over two decades of electrical engineering expertise
- In-house panel design, fabrication, and quality control
- IEC/IS-compliant wiring and material standards
- Pre-wiring and testing for faster site commissioning
- Weatherproof enclosures with long service life
- Professional documentation with SLDs, GA drawings, and terminal charts
- Fast delivery timelines and responsive customer support
Our marshalling boxes are engineered to bring clarity, safety, and structure to transformer wiring, ensuring smooth control and reliable field performance.
Ready to Simplify Your Transformer Wiring Setup?
Let Digital Electric provide you with a high-performance, field-tested transformer marshalling box that simplifies your control system and enhances transformer reliability. Our team is ready to customize your solution for optimal performance and protection.
Contact us now to request a quote or consultation.
FAQs
What is the purpose of a transformer marshalling box?
It acts as an interface box that connects various protection, control, and instrumentation signals for a transformer system.
What’s included inside the marshalling box?
It typically contains terminal blocks, cable glands, protection devices, auxiliary relays, and wiring for transformer accessories like RTDs and pressure switches.
Are your marshalling boxes weatherproof?
Yes. Our boxes are built with IP-rated enclosures (up to IP65) suitable for outdoor and dusty environments.
Can you customize the box layout for our protection scheme?
Absolutely. We tailor the layout, terminations, and wiring based on your project’s SLDs and functional requirements.
Do you provide wiring diagrams and terminal layouts?
Yes. All boxes are supplied with clear wiring schematics, SLDs, and terminal schedules.
Is SCADA integration possible?
Yes. Our boxes can be pre-wired for SCADA systems, allowing for seamless integration and remote monitoring.
How do you ensure quality?
Before being shipped, every box is put through rigorous quality checks, insulation testing, and continuity testing.
Can these be used in HV or EHV substations?
Yes. Our transformer marshalling boxes are designed to meet the needs of HV and EHV applications.
How long does it take to manufacture?
Usually three to four weeks, depending on the level of customisation and complexity needed.
What types of mounting are available?
We offer wall-mounted, free-standing pedestal, and integrated designs based on space and operational needs.