---
title: "Step-up Transformer"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:STEP_UP_TRANSFORMER"
  data_integrity_hash: "e61d90efdb737751ab5b16dd546c1bc6"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:STEP_UP_TRANSFORMER"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/step-up-transformer.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/step-up-transformer"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.4-33 kV primary to 11-400 kV secondary, 50-60 Hz frequency, 100-1000 MVA power rating"
    unit: "V/kVA"
engineering_limits:
  max_safe_operating_point:
    value: 25
    unit: "kV"
    consequence: "Dielectric breakdown of transformer oil at 30-40 kV/mm, thermal aging of cellulose insulation following Arrhenius law with activation energy 1.15 eV, magnetostriction causing core vibration at 120 Hz"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Partial discharge exceeding 100 pC discharge magnitude"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "SFRA testing at 10 Hz-10 MHz frequency range with 0.1% impedance deviation threshold"
  - node_2:
      trigger: "DC bias current exceeding 0.5% of rated current"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Neutral grounding resistor limiting fault current to 400 A with 10-second rating"
bom_nodes:
  magnetic-core:
    type: "component"
    urn: "URN:CNFX:ME:MAGNETIC_CORE"
    interface_type: "physical-logic-coupled"
  primary-winding:
    type: "component"
    urn: "URN:CNFX:ME:PRIMARY_WINDING"
    interface_type: "physical-logic-coupled"
  secondary-winding:
    type: "component"
    urn: "URN:CNFX:ME:SECONDARY_WINDING"
    interface_type: "physical-logic-coupled"
  insulation-system:
    type: "component"
    urn: "URN:CNFX:ME:INSULATION_SYSTEM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/step-up-transformer.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "20bce98e6d4b53375fb7dc82cec3e12afceba7ae5a3e0901f9b28537a0955cd0"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Step-up Transformer

## 1. Technical Definition
Electrical transformer that increases voltage from a lower primary voltage to a higher secondary voltage.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.4-33 kV primary to 11-400 kV secondary, 50-60 Hz frequency, 100-1000 MVA power rating**. Failure boundary: **Insulation breakdown at 25 kV/mm electric field strength, core saturation at 1.8 T magnetic flux density, winding temperature exceeding 105°C for Class A insulation**, Mechanism: **Dielectric breakdown of transformer oil at 30-40 kV/mm, thermal aging of cellulose insulation following Arrhenius law with activation energy 1.15 eV, magnetostriction causing core vibration at 120 Hz**.

### 2.1 Analytical Physics Model
Governed by the **Joule Heating & Thermal Resistance**:

> **Primary Equation**: $P = I^2 R = \frac{V^2}{R}$  
> **Engineering Impact**: Governs heating element sizing for shrink tunnels/sealers.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| I | Current | Engineering Constant |
| R | Resistance | Engineering Constant |
| V | Voltage | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Partial discharge exceeding 100 pC discharge magnitude | 8 | Progressive insulation degradation leading to dielectric failure | SFRA testing at 10 Hz-10 MHz frequency range with 0.1% impedance deviation threshold |
| DC bias current exceeding 0.5% of rated current | 8 | Half-cycle saturation causing harmonic distortion &gt;8% THD | Neutral grounding resistor limiting fault current to 400 A with 10-second rating |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | V/kVA | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Transformer Oil Purification System**, **Winding Machine**, **Vacuum Impregnation System**  
**Downstream Applications**: Power Distribution Systems, Industrial Motor Drives, Renewable Energy Inverters  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the main components in a step-up transformer's BOM?
**A**: The bill of materials includes the insulation system, magnetic core (typically silicon steel), primary winding, and secondary winding, with transformer oil for oil-cooled models.

### Q: How does a step-up transformer increase voltage?
**A**: It uses electromagnetic induction between primary and secondary windings wound around a silicon steel core, with more turns in the secondary winding to step up voltage.

### Q: What insulation materials are used in step-up transformers?
**A**: Common insulation includes paper, pressboard, and synthetic materials to separate windings and prevent electrical shorts, often combined with transformer oil in oil-cooled units.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Step-up Transformer](https://cnfx.com/industry/electrical-equipment-manufacturing/product/step-up-transformer)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: STEP_UP_TRANSFORMER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 500f00f7
