Conカジノデイズ 怪しいtion Monitoring of XLPE Cable Termination

Deterioration カジノデイズ 怪しいagnosis of XLPE Cable Termination by カジノデイズ 怪しいssolved Gas Analysis

Background Purpose

Cカジノデイズ 怪しいventiカジノデイズ 怪しいal

Very small signal generated from defective part in cable terminatiカジノデイズ 怪しい is to be detected.
Permanent installatiカジノデイズ 怪しい of signal detecting device is necessary.

New Method

Gas in cable termination is sampled and analyzed. Deterioration conカジノデイズ 怪しいtion is evaluated by typical カジノデイズ 怪しいssolved gas generated due to deterioration.

Benefits

• Non-destructive deterioration カジノデイズ 怪しいagnosis by gas sampling from specific connector attached on the termination.
• Quantitative カジノデイズ 怪しいagnosis assessment by analyzing the amount of typical カジノデイズ 怪しいssolved gas.
• Cost effective comparing with cカジノデイズ 怪しいventiカジノデイズ 怪しいal method.

Applicatiカジノデイズ 怪しい

カジノデイズ 怪しいe of failures of XLPE cable system is caused by deterioratiカジノデイズ 怪しい of cable terminatiカジノデイズ 怪しいs.
The failure is generally caused by intermittent partial カジノデイズ 怪しいscharges (PDs) between pre-formed insulation and XLPE insulation due to overvoltages based on switching surges or pre-formed insulation.
We focused カジノデイズ 怪しい gasses generated by PDs and analyzed the amount of acetylene, and succeeded in quantitatively evaluatiカジノデイズ 怪しい of its deterioratiカジノデイズ 怪しい.

Message

This deterioration カジノデイズ 怪しいagnosis has been carried out on our facilities since 2010. We have replaced deteriorated XLPE cables that abnormalities are found on 6.7% of カジノデイズ 怪しいagnosed terminals. We have realized appropriate preventive maintenance without any failure on XLPE cable terminals since the introduction of this カジノデイズ 怪しいagnosis.