Blog-Page 3-INNOFZ

Dissolved Gas Analysis in Transformers: Key Gases, Fault Types & DGA Interpretation

2026年9月29日 09:32:52

Dissolved gas analysis (DGA) measures the fault gases dissolved in transformer insulating oil and is one of the most sensitive early-warning tools for oil-immersed transformers. Key gases include h...

OLTC Transformer Monitoring: What to Monitor in an On-Load Tap Changer

2026年9月28日 09:42:44

The on-load tap changer (OLTC) is the only major moving part inside a power transformer, and international reliability surveys such as CIGRE Technical Brochure 642 rank it among the leading failure...

Fiber Optic Temperature Measurement in Transformers: Hot Spot Monitoring, Installation & Channel Selection

2026年9月27日 10:05:00

What it is: Fiber optic temperature measurement places all-dielectric fluorescent probes directly inside transformer windings to read the true hot spot temperature, instead of estimating it from to...

Transformer Bushing Monitoring: Failure Indicators, Capacitance, Tan Delta & Leakage Current

2026年9月25日 16:29:29

Bushings are small compared with the transformer they serve, yet they are responsible for a disproportionate share of major transformer failures. A bushing carries full line voltage through the gro...

Transformer Condition Monitoring: Methods, Parameters, Sensors & Online Monitoring Strategy

2026年9月24日 12:36:53

Transformer condition monitoring is the continuous or periodic assessment of a transformer's thermal, chemical, electrical and mechanical state. Its purpose is to judge the health of the asset, det...

Partial Discharge Monitoring in Transformers: Detection Methods, Sensors & Online Monitoring

2026年9月24日 12:36:05

Partial discharge (PD) is a localized electrical discharge within or around an insulation system that does not completely bridge the insulation between conductors. In a transformer, PD can point to...

Online DGA vs Periodic Oil Sampling: Which Is Better for Transformer Condition Monitoring?

2026年9月6日 16:13:20

Power transformers are among the most expensive and critical assets in any electrical grid, substation, or industrial power network. A single unplanned transformer failure can trigger extended outa...

When Does a Transformer Need Online DGA Monitoring?

2026年9月6日 15:55:13

Every transformer owner eventually asks the same question: is annual oil sampling enough, or does this unit need continuous, online dissolved gas analysis? The honest answer is that not every trans...

Transformer Oil Temperature Gauge vs Winding Temperature Gauge: Key Differences & Selection

2026年9月6日 15:45:30

Transformer oil temperature gauge (OTI) measures or indicates insulating oil temperature, typically top-oil temperature, while a winding temperature gauge (WTI) represents transformer winding therm...

Transformer Temperature Rise: Limits & Ratings

2026年9月6日 15:42:14

Transformer winding temperature alarm and trip settings should be based on the transformer's thermal design, insulation system, cooling method and manufacturer limits—not copied from another transf...

High Voltage Temperature Measurement: Methods & Sensor

2026年9月6日 12:07:16

High voltage temperature measurement requires a sensor and measurement method that can operate safely around strong electric fields, magnetic fields and large electrical potential differences. Fibe...

Transformer Winding Hot Spot Temperature: Measurement, Monitoring & Sensors

2026年9月6日 12:04:22

Transformer winding hot spot temperature is the highest local temperature within a current-carrying winding and its surrounding insulation, rather than the average temperature of the complete windi...

Transformer Failure Modes: Causes, Symptoms, Detection Methods & Prevention Guide

2026年7月24日 13:53:55

Transformer failure can cause unexpected outages, expensive repairs, and reduced power system reliability. Understanding common transformer failure modes helps engineers identify risks early and de...

Transformer Overheating: Causes, Symptoms, Effects, Prevention & Expert Guide

2026年7月24日 10:46:19

Transformer overheating is a common thermal problem that can affect transformer reliability, insulation life, and long-term operating performance. When transformer temperature exceeds the normal op...

Previous Page
1
2
3
Total Pages: 3

Get a Quote

[email protected]

Go to top

Transformer Monitoring Blog

Recommended Products

Transformer Bushing Monitoring System

Intelligent Online Health Monitoring System for Dry-Type Transformer

Transformer OLTC Online Monitoring System

Armored Fiber Optic Temperature Sensor for Oil-Immersed Transformer Windings

BWR-04-06AJ(TH) Transformer Winding Temperature Indicator

Fiber Optic Temperature Display Integrated Host

Popular Articles