I check my seetings only jpeg. It is not the duplicate problem whice have one jpeg and raw
You probably have auto exposure bracketing or auto white balance bracketing turned on. When any form of bracketing is enabled, the camera produces multiple images with different settings.
Most cameras take three images by default when bracketing is enabled. Some can take more than three, and allow the user to select just how many they wish to take, as well as how 'far apart' they want each version to be in terms of exposure or other settings, such as white balance or TTL flash power.
For exposure bracketing, the camera will activate the shutter three times to (normally) use three different shutter times.
For white balance bracketing, the camera will only operate the shutter once to expose the sensor. But then the camera produces three different JPEG versions of the image by applying different color temperature and/or white balance correction to the raw data collected by the sensor.