SF6Gas density relay（WINFOSS-D6)

SeikoManufacturing, parameters, and interface specifications can be customized;Suitable for interface installation and application in various switch factories both domestically and internationally!

Overview

SF6 gas density relay (WINFOSS-D6), mainly used for monitoring sealed containersSF6The density of gas. Multiple applications inSF6Gas is used as an insulating medium in high-voltage electrical equipment and is suitable for harsh outdoor working environments. This density relay has two or three sets of contacts (defined according to different requirements), which can emit overpressure, alarm, and lockout control signals, and have indicator displays. The density relay is filled with silicone oil to improve its seismic and impact resistance.

Additionally, remote transmission can be customizedSF6Density relay(WINFOSS-GDC-R)，Internally integrated with precision pressure sensors and digital temperature sensors, high-performance microprocessors are used to collect pressure and temperature signals, which are calculated using empirical formulas20The standard pressure value at ℃ is transmitted to the upper computer through the data bus. Alternatively, it can also be done through4-20mAThe standard signal is connected to the monitoring system in the control room, which is particularly suitable for multipleSF6The centralized monitoring of the gas chamber can transmit the density information of the entire monitoring area to the control room, and use a microcomputer to display and store data in real time. It can also depict and print daily, monthly, and annual density change curves.

Introduction to Principles

Among them, the remote transmission typeSF6The density relay consists of two parts, one is the pointer indication and control part of the traditional density relay, and the other is the intelligent monitoring and communication part added to meet the needs of online monitoring.

l Principle of indication and control:

SF6 gasThe pointer on the dial of the density relay indicatesSF6The gas density value is determined bySF6The pressure of gas after temperature compensation is expressed as20The standard pressure value at ℃.SF6The density relay operates at rated pressure, and when the ambient temperature changes,SF6The pressure of the gas also changes, and the temperature compensation unit inside the density relay corrects the changing pressure to keep its pressure reading unchanged. whenSF6When gas leaks, the pressure drops. When it reaches the alarm set value, a pair of contacts of the density relay outputs an alarm signal. At this time, the user is required to supply air to the equipment. If the pressure continues to drop and reaches the locking set value, the pair of contacts of the density relay outputs a locking signal to lock the control system of the equipment, thereby achieving safe operation protection of the electrical equipment.

l Principles of Intelligent Monitoring and Communication

The intelligent module inside the density relay mainly monitors the pressure sensor signal, which is filtered and operated by an operational amplifier, and then processed with high precisionA/DConvert to a digital signal, and then use a high-performance processor to combine the temperature signal to convert the densityD/AConvert the analog signal and then convert it into4-20mACurrent signal output, the other channel usesRS485Bus output.

Although these solutions can meet the needs of providing security protection for devices, they have not been able to meet the emergency or more complex security needs of some non professionals. Especially lacking more effective tools to solve problems in a timely and professional manner, for example, if you have at least one or more of the following problems that have not been resolved for a long time.

Technical Specifications

l Measurement range:-0.1～0.9Mpa。

l Accuracy level:1.5Grade.

l Intelligent module power supply:DC 12～30Vpower consumption<30mA。

l Intelligent module output mode:RS485and4-20mA。

l Intelligent module communication protocol:IEC60870-5-103Or customized according to customer requirements.

l 抗震性能：20m/s2。

l Impact resistance performance:300m/s2。

l Insulation resistance: Insulation resistance between leads and between leads and the casing>200MOh.

l Shell protection level:IP65。

l Sealing performance: ≤10-9 Pa·m3/s。

l Contact capacity:AC/DC 250V，30VA/W。

l Working environment: Relative humidity ≤95%RH。

l Rated pressure>0.5MpaWhen the ambient temperature is-25℃～+60℃。

l Rated pressure ≤0.4MpaWhen the ambient temperature is-40℃～+60℃。

l Withstand voltage:2KV,50Hz。

l Electrical lifespan:50000Next time.

l Reference leakage rate<5X10mbar xl/s。

feature

l On the basis of traditional density relays, intelligent modules are built in, which not only retains the reliable and stable advantages of mechanical density relays, but also meets the needs ofSF6The demand for online monitoring of density.

l All stainless steel shell, with good waterproof and anti-corrosion performance, and beautiful appearance.

l The temperature sensing element is made of imported materials, which have stable performance and good consistency.

l Control integrated.

l Filled with silicone oil, it has anti vibration and impact resistance.

l The contact device is a magnetic assisted, high-performance electrical contact.

l The specifications are complete, and customized processing can be carried out according to the user's contact requirements.

Service Guarantee

l Provide on-site training guidance and conduct on-site demonstration operations.

l Provide detailed Chinese manuals and user guidance.

l One year free warranty, lifetime spare parts support and maintenance.

l hotline365Answer user inquiries 24/7.