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NR8500 Series Transformer Oil Chromatography Online Monitoring System

The NR8500 series transformer oil chromatography online monitoring system (multi-component) is used to measure and analyze trace characteristic gases contained in the insulating oil of oil-immersed electrical equipment. By analyzing the gas content, it can capture potential latent fault information in the equipment in real time and ensure reliable operation of the equipment.

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Integrated test system part

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Product patent

Product description

Product Introduction

　　The NR8500 series transformer oil chromatography online monitoring system (multi-component) is used to measure and analyze trace characteristic gases contained in the insulating oil of oil-immersed power equipment. By analyzing the gas content, it can capture potential latent fault information in the equipment in real time and ensure reliable operation of the equipment.

　　It can be installed while the main transformer is running, reducing the fluctuation caused by installing the online monitoring system on the power grid and reducing the installation workload. The installation of this system with the transformer body is very simple, only the oil inlet and outlet pipes are needed, and both the oil inlet and outlet are connected through flanges and the reserved holes of the transformer.

　　The transformer oil chromatography online monitoring system can automatically perform quantitative circulating cleaning, oil feeding, oil-gas separation, sample analysis, data processing, and real-time alarm; quickly monitor online the content and growth rate of dissolved fault gases in the oil of oil-immersed high-voltage power equipment such as transformers, and predict equipment fault hidden dangers early through the fault diagnosis expert system, avoid equipment accidents, reduce major losses, and improve the reliability of equipment operation. As a new generation of products in the field of online monitoring of oil chromatography, this system will provide a stable and reliable solution for online remote DGA analysis of power transformers and is a strong guarantee for the implementation of the power system state maintenance system.

　　The transformer oil chromatography online monitoring system consists of an oil-gas separation unit, a gas detection unit, a data acquisition and control data processing unit, and an auxiliary unit. The system can online detect the content of dissolved H2, CO, CH4, C2H6, C2H2, C2H4, CO2 and other full-component gases and trace water in transformer oil at a predetermined cycle.

Main Features

　　◆ Oil-gas separation technology: Dynamic negative pressure headspace degassing, rapid oil-gas separation, sufficient degassing, and inherent safety characteristics;

　　◆ Detector: World-leading sensing technology, nano-crystal semiconductor gas sensor, high sensitivity, fast response speed, ensuring stable and accurate data;

　　◆ Heating method: Unique heating method to ensure that the baseline is fast, stable, and drift-free;

　　◆ Carrier gas: Self-made carrier gas to create a maintenance-free product;

　　◆ Signal processing: Intelligent peak identification technology to ensure reliable identification of trace gas components such as acetylene;

　　◆ Baseline processing: Wavelet baseline automatic tracking technology to ensure accurate quantification;

　　◆ Environmental adaptability: Dual constant temperature control technology to meet the use in outdoor environments and ensure data stability;

　　◆ Communication protocol: RS-485, IEC61850 standard protocol, multiple options;

　　◆ Appearance: The unique anti-corrosion and all-round waterproof process on the surface of the shell improves the anti-corrosion and sealing performance of the shell;

　　◆ Air tightness: Strict airtight connection to ensure that the product does not leak gas or oil during long-term operation;

　　◆ The oil inlet pipe and return oil pipe are equipped with a heating belt to ensure normal operation at -45°C, and an oil filter is installed at the oil inlet to ensure long-term trouble-free operation of the equipment;

　　◆ The equipment is equipped with an industrial air conditioner and can operate normally at -45°C to 70°C;

　　◆ Transformer oil chromatography online monitoring system client software V2.0.3, considering the application characteristics of multiple users and remote online monitoring, adopts an object-oriented design method. Through this software, you can monitor system data in real time, browse historical data and spectral data, and modify system parameters when authorized.

Technical Parameters

　　◆ Basic Equipment Parameters

Category	Parameter	Device
Power Characteristics	AC: V	220
	Frequency: Hz	50±1
Environmental Parameters	Device
Operating Temperature	-45～70oC
Operating Environment Humidity	5-95% No Condensation
Seismic Resistance	Grade 8
Analysis Cycle	50 minutes to complete one monitoring process, continuous monitoring is possible
Carrier Gas	High-purity air
Electrical Safety	Dielectric Strength: V	100, 500, 1000, 1500 (1min)
	Insulation Resistance: MΩ	AC circuit external terminal to ground ≥10; ungrounded DC circuit (excluding sensor) to ground ≥1

　　◆ System Monitoring Parameters

Serial Number	Gas	Minimum detectable gas concentration	Monitoring Range	Monitoring Accuracy	Repeatability of the same oil sample
1	H2	1uL/L	1-5000uL/L	±10% 2uL/L, whichever is larger	Less than ±5%
2	CO	1uL/L	1-5000uL/L	±10%	Less than ±5%
3	CH4	0.5uL/L	0.5-4000uL/L	±10% or 2uL/L, whichever is larger	Less than ±5%
4	C2H6	0.5uL/L	0.5-3000uL/L	±10% or 2uL/L, whichever is larger	Less than ±5%
5	C2H4	0.5uL/L	0.5-4000uL/L	±10% or 2uL/L, whichever is larger	Less than ±5%
6	C2H2	0.1uL/L	0.1-2000uL/L	±10% or 2uL/L, whichever is larger	Less than ±5%
7	CO2	10uL/L	10-5000uL/L	±10% or 2uL/L, whichever is larger	Less than ±5%
8	Trace Water (Optional)	1uL/L	1-100uL/L	±10% or 2uL/L, whichever is larger	Less than ±5%
9	Water Activity (Optional)	0.01	0-1aw	±0.02	Less than ±5%
10	Oil Temperature (Optional)		-40～180℃	±0.01℃	Less than ±5%
11	Total Hydrocarbons (Optional)	0.1uL/L	0.1-8000uL/L	The greater of ±5％ or 2uL/L	Less than ±5%

NR8400 Series Power Simulation System

NR8600 Series High-Voltage Partial Discharge-Free Combined Testing System

NR8400 Series Power Simulation System

NR8600 Series High-Voltage Partial Discharge-Free Combined Testing System

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ADD：Building c3-09b, optical valley core center, 303 Optical Valley Avenue, Donghu New Technology Development Zone, Wuhan, China

Hotline: 400-027-1230
Tel: +86-027-8769-0177
+86-188-2742-2008
+86-177-6240-6910
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+86-177 0277 9566
+86-133 6724 1932

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jd@jindian-tech.com

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