KS30-H3W Multi-Parameter Insulation Medium Analyzer for Eco-Friendly Switchgear

SF₆ Trace Gas, Oxygen and Dew Point Measurement for N₂ and Dry-Air Insulated Switchgear

The KSTONE KS30-H3W is a multi-parameter insulation medium analyzer designed for gas-quality testing in eco-friendly switchgear using N₂ or dry air as an insulation medium.

The analyzer combines trace SF₆ measurement, oxygen (O₂) measurement and dew point measurement in one portable instrument. It can identify different insulation-gas environments by measuring oxygen concentration, making it suitable for both N₂-insulated and dry-air-insulated switchgear.

With imported high-performance sensors, a high-speed microprocessor, a color touchscreen and an integrated gas-flow control system, KS30-H3W provides fast and convenient field measurement for power equipment manufacturers, substations, maintenance teams and electrical testing service providers.

Key Measurement Functions

Trace SF₆ Measurement

KS30-H3W can detect trace amounts of SF₆ in eco-friendly switchgear.

• Measuring range: 0–3000 ppm
• Resolution: 0.1 ppm
• Response time: ≤30 s

Trace SF₆ measurement can be used to monitor possible SF₆ contamination or residual SF₆ in insulation-gas systems where N₂ or dry air is used as the primary insulation medium.

Oxygen Measurement

The analyzer supports two O₂ measurement ranges according to the insulation medium.

For N₂-insulated switchgear

• O₂ range: 0–1%

For dry-air-insulated switchgear

• O₂ range: 0–23%

The O₂ measurement range allows the instrument to be used for different eco-friendly switchgear gas environments without requiring separate analyzers.

Dew Point Measurement

KS30-H3W measures the dew point of the sample gas to help evaluate moisture conditions inside the insulation-gas system.

• Measuring range: −80 to +20°C
• Resolution: 0.1°C
• Reference accuracy: ±0.5°C

Moisture measurement is particularly important for monitoring the gas quality of sealed electrical equipment and identifying unfavorable moisture conditions that may affect insulation performance.

One Analyzer for Different Eco-Friendly Switchgear Media

Eco-friendly switchgear may use different insulation media depending on the equipment design.

KS30-H3W combines multiple measurements in one instrument, allowing users to test:

This multi-parameter configuration reduces the need to carry separate testing instruments for different gas-quality measurements.

How KS30-H3W Works

During measurement, the sample gas is introduced into the analyzer through the sampling connection.

The integrated gas-flow system helps maintain stable sampling conditions, while the internal sensors simultaneously measure the required gas parameters.

Measurement Process

Switchgear → Gas Sampling → Flow Stabilization → Multi-Parameter Measurement → Results Display → Data Storage

The instrument can simultaneously provide information on:

• Trace SF₆ concentration
• Oxygen concentration
• Dew point

Measurement results are displayed directly on the color touchscreen for convenient field operation.

Key Features

1. Multi-Parameter Measurement

SF₆, O₂ and dew point can be measured using one integrated analyzer, reducing the number of instruments required for field testing.

2. Designed for N₂ and Dry-Air Switchgear

Two O₂ measurement ranges support different insulation-media applications:

• 0–1% O₂ for N₂-insulated switchgear
• 0–23% O₂ for dry-air-insulated switchgear

3. Trace SF₆ Detection

The instrument measures trace SF₆ from 0 to 3000 ppm, with a resolution of 0.1 ppm.

4. Fast Measurement Response

The analyzer is designed for rapid field testing, with SF₆, O₂ and gas-composition measurements responding within approximately 30 seconds under specified conditions.

5. Integrated Flow Control

A built-in pressure stabilizing valve and electronic flowmeter help maintain stable sample-gas conditions during measurement.

6. High-Performance Sensors

The analyzer uses high-performance imported sensors for stable measurement and good repeatability.

7. Color Touchscreen Interface

The color touchscreen and graphical user interface simplify operation and allow measurement results and instrument settings to be viewed directly on the display.

8. Built for Field Testing

The compact instrument weighs approximately 3.5 kg and is powered by a lithium battery, while also supporting AC power for flexible field and workshop use.

Technical Specifications

SF₆ Measurement

Dew Point Measurement

* Response times may vary under different measurement conditions. The original specification indicates reference values of 30 s and 300 s respectively.

Nitrogen (N₂)

Oxygen (O₂) – Low Range

For N₂-insulated switchgear

Oxygen (O₂) – High Range

For dry-air-insulated switchgear

General Specifications

Typical Applications

KS30-H3W is designed for gas-quality testing and maintenance of eco-friendly electrical equipment.

Eco-Friendly Switchgear

Used to test insulation gas conditions in switchgear using N₂ or dry air instead of conventional SF₆-based insulation systems.

Electrical Equipment Manufacturers

Suitable for gas-quality inspection during equipment production, assembly and commissioning.

Substations

Used for field inspection and maintenance of gas-insulated electrical equipment.

Power Equipment Maintenance

Provides portable measurement of trace SF₆, oxygen and dew point during inspection and maintenance activities.

Suitable for testing companies and service providers that require a compact multi-parameter gas analyzer for field applications.

Why Choose KSTONE KS30-H3W?

Multiple Measurements in One Instrument

Instead of using separate instruments for trace SF₆, oxygen and dew point, KS30-H3W integrates these measurements into one portable platform.

Adaptable to Different Insulation Media

The two O₂ measurement ranges allow the same analyzer to be used for both N₂ and dry-air insulation applications.

Practical Field Operation

The integrated flow-control system, touchscreen interface, battery power and compact design make the instrument suitable for on-site testing.

Fast Gas Quality Assessment

The combination of multiple measurement parameters allows users to obtain a more comprehensive picture of insulation-gas conditions during a single testing operation.

Data Management and Instrument Functions

In addition to gas measurement, KS30-H3W integrates several operating functions designed for field testing.

These include:

• Real-time measurement
• Power management
• Time management
• File storage
• Parameter setting
• Color touchscreen operation
• Graphical user interface

Measurement information can be viewed directly on the instrument and stored for later reference.

KS30-H3W at a Glance

Frequently Asked Questions

What does the KS30-H3W measure?

KS30-H3W is designed to measure trace SF₆, oxygen and dew point, with N₂ measurement also provided according to the specified configuration.

Can KS30-H3W be used for both N₂ and dry-air switchgear?

Yes. The instrument provides a 0–1% O₂ low range for N₂ applications and a 0–23% O₂ high range for dry-air applications.

Why measure trace SF₆ in eco-friendly switchgear?

When N₂ or dry air is used as the primary insulation medium, trace SF₆ measurement can help identify the presence of residual or contaminating SF₆ in the gas system.

What is the dew point range?

The dew point measurement range is −80 to +20°C, with a resolution of 0.1°C.

Can the instrument be used for field testing?

Yes. KS30-H3W is designed as a portable analyzer and supports lithium-battery operation as well as AC 100–240 V power.

What industries can use KS30-H3W?

Typical users include power utilities, switchgear manufacturers, electrical testing companies, maintenance contractors and other organizations involved in eco-friendly switchgear inspection.

Related KSTONE Products

For different insulation-gas and SF₆ testing requirements, KSTONE provides a range of gas analyzers and leak detection instruments.

Related products may include:

• SF₆ Leak Detectors
• SF₆ Gas Analyzers
• SF₆ Purity and Dew Point Analyzers
• SF₆ / N₂ Gas Analyzers
• SF₆ / CF₄ Gas Analyzers
• Eco-Friendly Switchgear Gas Analyzers
• Portable SF₆ Gas Handling Equipment

Request a Quote

Looking for a gas analyzer for N₂ or dry-air insulated switchgear?

Contact KSTONE for product specifications, quotation, configuration details and technical support for your application.

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