气体继电器使用说明书

产品概述The product overview

QJ G- 型气体继电器是具有动作指示功能的继电器，是安装在800KV A及以上的油浸式变压器（有载分接开关）的一种保护装置，该继电器安装在变压器与储油柜之间的连接管路中。当变压器（或有载分接开关）内部故障时，产生的气体或油流冲动挡板，使跳闸接点接通，自动切断电源，起保护变压器（或有载分接开关）作用，它是变压器（或有载分接开关）的主要安全保护装置。它采用挡板式磁力接点结构。当变压器（或有载分接开关）在运行中、或故障时，继电器内气体达到一定容积时，开口杯下沉，上磁铁使上干簧接点闭合，接通信号回路；当油流冲动挡板，下磁铁使下干簧接点闭合，接通信号回路。信号接点接通，并发出报警信号，起到保护变压器的作用。同时，该型号继电器在保有原继电器功能和安装尺寸的情况下，增加了报警信号标记装置和标记复位装置，给检修和故障排除节省了大量的时间，并可以很方便地使指针复位。

A gas’relay in model of QJ G- is one with a indication function of action and is a protection device installed on an oil immersed type of transformer (with a loading tapping switch) in 800KVA or over , which is installed on the connection pipeline between the transformer and an deposted oil tank. When the transformer (or with a loading tapping switch) is in an internal fault, the gas or oil flow will impulse the baffle to make the jump junction turn on and cut off the power automatically to protect the transformer (or with a loading tapping switch), which is a main safety protection device for the transformer (or with a loading tapping switch). It makes use of a baffle type of magnetism junction structure. When the transformer (or with a loading tapping switch) is in running or fault, after gas in the relay reaches at a certain volume, the open cup will sink and the top magnet will make the upper dry spring junction close to turn on the signal loop; When the oil flow impulses the baffle, the bottom magnet will make the bottom dry spring junction close to turn on the signal loop. The signal connection point will be turned on and send out the warning signal to protect the transformer. At the same time, this type of the relay has been increased a warning signal mark device and a mark returning position device, under keeping the old functions and the outer sizes, which not only saves a large amount of time for the maintenance and the shooting trouble, but also help the indicating pointer to restoring the original position.

执行标准The execution standard：JB/T9647-1999

型号分为The models are divided into：QJ G-25；QJ G-50；QJ G-80

一、产品结构特点The product structure characters

1．型号及其含义The model and the meanings

Q J 口- 口

公称通径mm

The metric system flow diameter

设计序号

The design sequence number

继电器

The relay

气体

The gas

QJ G- 继电器芯子结构如图一所示，当变压器（或有载分接开关）正常工作时，是充满变压器油的。如果变压器出现故障时，则因油分解而产生的气体聚集在容器上部，迫使油面下降，浮子3降到某一限定位置时，磁铁16使干簧接点20闭合，接通信号回路，发出信号。若变压器（或有载分接开关）因漏油而使油面降低，同样发出信号，如果变压器（或有载分接开关）内部出现故障，出现油的涌浪，则在连接管内产生油流，冲动挡板5运动到某一限定位置时，磁铁6使干簧接点10闭合，接通跳闸回

路，切断与变压器连接的所有电源，发出报警信号，从而起到保护变压器的作用。

The core structure of the relay in model of QJ G- is shown in the diagram 1. When the transformer is in work, it is full of the transformer oil. If the transformer is in trouble, the gas from the oil resolution will be gathered on the top of the container to make the oil level go down. When the float 3 goes down to the limited position, the magnet 16 makes the dry spring junction 20 close to turn on the signal loop and send out the signal. If the oil level is gone down by the leakage of the transformer (or with a loading tapping switch), it also will send out the signal; If there is a fault in the transformer (or with a loading tapping switch) and an oil swell is appearing, the oil flow will be produced in the connection pipe to impulse the baffle 5 to move into the limited position and the magnet 6 will make the dry spring junction 10 close to turn on the jump loop to cut off all powers connected with the transformer and send out a warning signal for the protection of the transformer.

QJ G- 是我国气体继电器改型设计开发的新一代产品。其特点如下：

The relay in model of QJ G- is a new product with an enhancement type of the gas relay design in our country. Its characters are following:

1、在不改变继电器内、外任何结构的情况下，增加了继电器挡板动作就地显示装置，当挡板动作

导致重瓦斯动作时，该显示装置能标识出该种动作信号，以区别由继电器二次回路出现问题导致出现重瓦斯动作信号的情况，并设计了动作信号的复位装置，以便消除故障后，使动作信号恢复原位。

Under keeping the old structure of the relay, it is increased a local indication device for the relay baffle action. When the baffle action results to a heavy gas action, the indication equipment can mark out the action signal to distinguish the heavy gas action from the trouble in the second loop and the restoring position device for the action signal is designed to make the action signal return the original position after the trouble is shot.

2、上壳体、视察窗压板采用压铸铝一次成型，连接处采用密封槽结构，保证不渗漏，且外形美观。

The upper cage and the cover plate of the indication window are made by the die cast Aluminium in one time and the connection position uses a seal slot structure, which can keep no leakage and the outer shape is beautiful outlook.

3、接线端子盒采用双密封，克服了传统产品的漏水现象。

The junction box uses the double seals, which overcomes the leakage of the traditional product.

4、外表光滑、美观，无渗漏，免维护。

The outer shape is smooth, beautiful outlook, no leakage, free maintenance.

二、技术参数The technical parameters

1、工作温度The work temperature: -30℃~+95℃

2、接点容量The junction volume: AC 220V 0.3A COSΦ≤0.6

DC 220V 0.3A S≤5×103S

3、工作特性The work character：

规格Spec. QJ G-80 QJ G-50 QJ G-25

油速整定范围

0.7~1.5 0.6~1.2 0.8~1.2

oil speed adjustment

& setting scale（m/s）

气体积聚数量

gas gather amount

250~300 250 （ml）

4、密封性能The seal performance:

继电器充满变压器油，在常温下加压200kpa,持续20分钟无渗漏。