Engineering clarity.
Building confidence.

An Indian electrical equipment manufacturer

Invitrona is an Indian electrical equipment manufacturer providing voltage regulation, transformers, rectifiers, power supplies and LED drivers for corporate, residential-project, industrial and OEM applications. The company is INVITRONA ELECTRICALS LIMITED, established in 1992 and based in New Delhi, with its office, works and registered office at one address: A-56, Naraina Industrial Area, Phase 1, New Delhi 110028.

What Invitrona makes

The portfolio is organised in four product families and seven product classes, all in regular production. Products are named by class and rating band rather than by model code.

Voltage Regulation & Power Quality

• Servo voltage stabilizers, up to 500 kVA, single or three phase
• Voltage stabilizers and voltage controllers: tap-changing stabilizers and adjustable voltage controllers, up to 500 kVA
• Servo controllers for integration into host stabilizers up to 500 kVA

Transformers & Power Distribution

• Electrical power and distribution transformers, typically 25–2,500 kVA, three phase and oil immersed, typically 11 kV / 433 V

Rectification & DC Power Systems

• Silicon, industrial and AC-to-DC rectifiers, typically 50–5,000 A and 6–220 V DC, for industrial process duty

Power Supplies & LED Drivers

• CC/CV and custom power supplies, typically 10–600 W
• LED drivers, constant current or constant voltage, typically 10–200 W

The ranges above are typical for each class. The rating and configuration for a particular requirement are confirmed through engineering review.

Who Invitrona works with

Invitrona serves four business markets. Each has its own buying process and its own questions, and the website offers a pathway for each:

• [Corporate multi-site power quality](/applications/corporate-multi-site-power-quality): organisations with many locations, such as large-format retail, that want one dependable power-quality standard across sites
• [Premium residential and architectural power quality](/applications/premium-residential-architectural-power-quality): large residences and architect-led projects where voltage stabilization must be planned with placement, noise, heat and access
• [Industrial power equipment](/applications/industrial-power-equipment): plants and facilities where voltage quality, conversion, transformation or distribution affects production and equipment
• [OEM power solutions](/applications/oem-power-solutions): manufacturers integrating power supplies, LED drivers and control equipment into their own products

All four markets belong equally to one Invitrona brand. The same product class may serve several markets without being renamed.

Purpose and mission

Invitrona's purpose is to make dependable, professionally accountable electrical equipment the standard for Indian business and industry.

Its mission is to engineer, manufacture, deliver and support technically sound electrical equipment through documented specifications, consistent processes, disciplined testing and accountable service.

What guides the work

Six values describe how Invitrona intends to work:

• Technical integrity: specify and recommend what the application genuinely requires, without hiding engineering limitations
• Consistency by design: create repeatable standards across products, documents, deliveries and service
• Accountability: state responsibilities clearly, establish facts, take ownership and close the loop
• Long-term responsibility: consider serviceability, maintainability, continuity and support beyond the initial supply
• Clarity: make requirements, assumptions, exclusions, scope and next actions unambiguous
• Responsible quality: protect safety, performance, reliability and service life without wasteful over-specification

Information before persuasion

This website aims to explain before it persuades. Product pages state typical ranges with their conditions; guides explain the decisions behind a selection; and the enquiry route leads to an engineering review rather than a price list. Where information depends on a particular requirement, it is confirmed in the proposal for that requirement.

To discuss a requirement, use the enquiry form.

One sequence for every product family

Invitrona follows the same sequence of work whether the requirement is a single stabilizer, a transformer for an industrial site, a rectifier for a process line or an OEM power supply. The equipment differs; the sequence does not. Each step produces something the customer can see and check.

1. Establish the actual requirement

Work begins with the requirement, not with a product. The load, the supply, the operating pattern, the installation and the responsibilities of each party are gathered and recorded. Measured facts are kept separate from estimates and assumptions, and missing information is listed rather than filled silently.

What the customer receives: a clear statement of what the proposal will be based on, and the questions still open.

Read more in capturing the requirement.

2. Define the technical scope and assumptions

The requirement is turned into a proposed configuration through an engineering review. The review checks the rating against the actual duty, the equipment against its environment and installation, and the interfaces with other systems. Where alternatives exist, they are described with their consequences. Departures from the customer's specification are listed.

What the customer receives: a technical proposal and quotation that state the configuration, assumptions, departures, inclusions, exclusions and responsibilities. Warranty terms are stated in the quotation.

Read more in design and configuration review.

3. Engineer and execute consistently

Once the scope is agreed, the equipment is engineered and manufactured to the approved configuration. Drawings that need approval are approved before manufacture. Materials and work are inspected at defined stages. Changes, from either side, are assessed and recorded before they take effect.

What the customer receives: equipment built to the configuration agreed, with any change made visible and agreed.

Read more in controlling changes.

4. Verify and document the agreed work

Finished equipment is checked against its configuration before dispatch, using the inspections and tests agreed for it. Results are recorded against the unit's identity. Delivery, installation and commissioning proceed according to the responsibilities stated in the order.

What the customer receives: the records and documents agreed for the scope, linked to the unit's serial identity. Inspection and test records for supplied units are available on request.

Read more in inspection and testing approach and planning delivery, installation and commissioning responsibilities.

5. Support the equipment through its lifecycle

After handover, the equipment remains Invitrona's responsibility within the agreed terms. Service requests are handled through a dedicated route. Facts from service are recorded and returned to engineering, so that recurring issues are corrected at their cause.

What the customer receives: a clear route for service, and a record of the unit's history that supports future decisions.

Read more in requesting service support.

Why the sequence matters

Electrical equipment is often bought as a rating and a price. Two offers with the same rating can differ in configuration, testing, documents, delivery, installation and support. Following the same sequence every time makes those differences visible, so the customer can compare complete commitments rather than headline figures, and can rely on what was agreed after the equipment is installed.

Where to start

Start with the enquiry form. If you already know the product family, the selection guides and checklists help prepare the information that step 1 needs.

Responsibility rather than slogans

Quality in electrical equipment is not a claim on a brochure. It is the result of decisions made at each stage: what was understood about the requirement, how the design was reviewed, what was checked during manufacture, and what was recorded. Invitrona describes its approach to each of those stages so that buyers can ask specific questions and expect specific answers.

This section summarises that approach. It describes processes, not results. Inspection and test records for supplied units are available on request; where a project requires evidence of conformity with a named standard, it is addressed in the technical submission for that project.

Nine areas of engineering and quality

Requirements

The requirement is recorded before a product is proposed, with stated needs, measured facts, assumptions and open questions kept separate. See capturing the requirement.

Design and configuration review

Each proposal is reviewed against the duty, supply, environment, installation and interfaces. Assumptions, alternatives and limitations are stated in the proposal. See design and configuration review.

Product data

Ratings and specifications are kept in a controlled source so that product pages, datasheets and proposals agree. Typical values are shown with their conditions. See controlled product data.

Inspection and testing

Inspection takes place on incoming material, during assembly and on the finished unit. Tests are planned around the agreed configuration, with methods and acceptance criteria stated. See inspection and testing approach.

Deviations

Departures from a specification are listed in the proposal. Nonconformities found in manufacture are held, recorded and decided, and the customer is asked before any that affect the agreed requirement are accepted. See handling deviations.

Traceability

Each unit or batch is linked to its configuration, records and service history through its serial or batch identity. See unit and batch traceability.

Change control

Changes to requirements, designs or components are assessed and approved before they take effect, and OEM customers are notified of changes that could affect their product. See controlling changes.

Documents

Each scope states which documents are supplied. Documents carry an identity, revision and status. See controlled technical documents.

Service feedback

Service records separate symptoms from confirmed causes, and recurring issues are returned to engineering. See service feedback and improvement.

How the approach is applied

The same approach applies across the four product families, but its detail differs with the product. A transformer project may have drawings for approval, a witnessed test and supply-authority requirements. A batch of LED drivers has a requirement baseline, sample validation and batch traceability. A servo voltage stabilizer for a residence has a placement review, a commissioning record and a maintenance plan. The proposal for each requirement states which parts of the approach apply and what records the customer will receive.

What a buyer can ask

Because the approach is described stage by stage, a buyer can ask concrete questions before ordering:

• What has the proposal assumed, and what information would change it?
• Which inspections and tests apply to this configuration, and what records will be supplied?
• Which clauses of the specification are not met, and what is offered instead?
• How will changes be notified after order?
• How is the unit identified, and how is it linked to its records?

Ask them through the enquiry form. The answers form part of the proposal for your requirement.

One address

Invitrona's office, works and registered office are at one address:

INVITRONA ELECTRICALS LIMITED, A-56, Naraina Industrial Area, Phase 1, New Delhi 110028, India.

The company identification number (CIN) is U47590DL1992PLC048891.

Use this address for any written correspondence.

Contacting Invitrona

The website offers two contact routes:

• The engineering enquiry form for new requirements, replacements, extensions and questions before purchase
• The service request form for installed equipment

Visits, including any witness inspection agreed in an order, are arranged in advance through the enquiry form so that the right people, equipment and documents are available.

Questions about personal information held by Invitrona can be raised through the enquiry form or in writing to the postal address above, as described in the privacy notice.

Service area

The service area is stated as: Based in New Delhi; supply and service across India by assessment.

The words "by assessment" are deliberate. Supplying and supporting equipment at a particular location depends on factors that differ from one requirement to the next:

• The type and size of the equipment, and how it is delivered and installed
• Whether installation and commissioning are in Invitrona's scope or the buyer's
• The location, access and site conditions
• For multi-site programmes, the number and spread of sites and the service model agreed
• For OEM products, where the host product is manufactured and how field issues are reported

These factors are considered when an enquiry is reviewed. The quotation then states what is included for the locations in scope, and what is not. A location is not assumed to be covered until that assessment has been made and the terms are agreed. If the location or scope changes later, for example when a programme adds new sites, the assessment is repeated for the new locations.

Supply across India

Equipment is dispatched from the works to the delivery point agreed in the order. The delivery point, transport, unloading and inspection on receipt are stated as responsibilities in the order, so that it is clear who does what when the equipment arrives. See planning delivery, installation and commissioning responsibilities.

Service from the same base

Service requests are reviewed against the unit's records, which are held with the order and the unit's identity. The reply establishes the facts, asks for missing information, names who is coordinating the request and gives the next action. Where a site visit is needed, it is confirmed before it takes place. See requesting service support.

Equipment identity and records

Every unit dispatched carries a rating plate or label with its identity. The records that relate to it, such as the agreed configuration, inspection records and commissioning information where available, are kept with the order. When a service request quotes the serial number, those records are the starting point for the review, wherever the unit is installed.

What the website does not state

The website does not publish response times, service coverage commitments or delivery periods, because they depend on the equipment, the location and the scope. Where they matter to a decision, ask for them to be stated in the quotation for your requirement.

Starting an enquiry

Every new requirement starts with the engineering enquiry form. The form asks only for what is needed to route the enquiry and begin the review:

• Your name, organisation and email, with an optional phone number, role and location
• The market or application, if one fits: corporate multi-site, premium residential and architectural, industrial or OEM
• The product or solution you are interested in, if known
• The project stage: planning, specification, procurement or already installed
• A summary of the requirement
• Your preferred next action: an engineering review, a quotation discussion, a site assessment or a call back

The requirement summary is the most important field. Describe the duty, the supply and the installation as well as you can, and say which documents, such as drawings, load schedules or specifications, are available. They are requested when the review begins.

Preparing the information

The selection guides explain which decisions matter for each product family, and the buyer checklists list the information to gather. An enquiry does not need every item. Measured values are more useful than estimates, and estimates should be marked as such.

What happens next

The enquiry is reviewed against the information given. The reply confirms what has been understood, lists what is missing, and proposes the next step. That step depends on the requirement:

• An engineering review, where the information is sufficient to propose a configuration
• A site assessment, where measurements or a survey are needed first
• A design-in discussion, for OEM requirements, beginning with the requirement baseline and the validation plan
• A quotation discussion, where the requirement and specification are already defined

What a proposal contains

An Invitrona proposal states:

• The requirement basis, with its source and any assumptions
• The proposed configuration, with performance values and their conditions
• Departures from the customer's specification, with reasons
• Inclusions and exclusions, including delivery, installation and commissioning
• The inspections, tests and documents included
• Responsibilities of each party
• Commercial terms; warranty terms are stated in the quotation

See specifying and comparing quotations and what a complete technical submission contains for how to read and compare a proposal.

When the fit is not right

Not every requirement suits Invitrona's products or the way Invitrona works. Where a requirement cannot be met responsibly, for example because it falls outside the product range, the information needed cannot be obtained, or the location cannot be supported, the reply says so and explains why. Declining clearly is more useful than accepting work that cannot be done well.

Confidentiality and personal information

Information in the enquiry form is used to review and reply to the enquiry, as described in the privacy notice. Do not include passwords or payment information. Where a requirement involves confidential drawings or OEM product information, the arrangement for sharing them is agreed before they are exchanged.

After the order

Once an order is placed, the agreed configuration, documents, inspections and responsibilities guide the work. Changes from either side are assessed and agreed before they take effect. After handover, installed equipment is supported through the service request form.