Maintenance measures for epoxy resin insulated dry-type transformers
Regarding the maintenance of epoxy resin insulated dry-type transformers, today we will introduce to you the relay protection device of epoxy resin insulated dry-type transformers. So what is the relay protection device of epoxy resin insulated dry-type transformer? Let’s learn more about it with me, a manufacturer of epoxy resin insulated dry-type transformers:
It is necessary to check after the differential protection mode and the emergency response relay maintenance mode. If it is clear that it is a quick-break protection mode, the sound coming from the dry-type transformer with epoxy insulation layer can be temporarily eliminated. If it is a coal-bed methane maintenance of an epoxy-insulated dry-type transformer, you need to first check whether the methane maintenance is running. If it is not running, it means that the fault point is outside the epoxy-insulated dry-type transformer. It is important to check the epoxy resin. For the power supply route from the insulated dry-type transformer and high-voltage circuit breaker to the resin insulated dry-type transformer, check whether there are two-color short circuit faults in the cables and bus ducts. Frequently Asked Questions: Relay maintenance equipment should use high-quality automotive relays and maintenance components. The components should have as few contacts as possible; the quality of the equipment must meet standards, and the maintenance panel and control panel should be solid and reliable to avoid installation in places with vibration. For the site, the quality of the terminal blocks must be up to standard and the wiring must be excellent. After the relay protection action of the epoxy insulated dry-type transformer is tripped, it is not necessary to return the out-of-band signal. Instead, the maintenance action status should be checked, the cause should be found out, and the fault should be eliminated before closing, that is, All discarded card data signals can be returned.
1. Type inspection. Type inspection, also called design test, is an experiment to comprehensively evaluate the structure and characteristics of resin insulated dry-type transformers to ensure that the resin insulated dry-type transformers meet the requirements of Design requirements meet customer needs. Type inspection is a test that every manufacturer must do before producing epoxy resin insulated dry-type transformers. Only manufacturers that have passed the type inspection and obtained product type inspection reports can produce epoxy resin insulated epoxy resin. An insulated dry-type transformer is a qualified epoxy resin insulated epoxy resin insulated dry-type transformer.
2. Original factory experiment. Each insulated dry-type transformer must undergo corresponding inspection tests when it is shipped from the factory to check whether the insulated dry-type transformer meets the expected design specifications and determine the environmental protection Oxygen resin insulated epoxy resin insulated dry-type transformers have no inadvertent manufacturing defects.
3. Work handover experiment. The epoxy resin insulation layer epoxy resin insulation layer dry-type transformer work handover laboratory conducts relevant experiments after the epoxy resin insulation layer epoxy resin insulation layer dry-type transformer is installed and put into operation in accordance with technical standards and engineering acceptance standards. To ensure that the epoxy resin insulated dry-type transformer is not damaged or changed during transportation and installation, and whether it meets the requirements for use.
4. Protective experiment. This is an experiment based on measuring the electrical circuit and insulation conditions of the epoxy insulated dry-type transformer after the epoxy insulated dry-type transformer was put into operation for a period of time. To determine whether the epoxy resin insulated dry-type transformer can operate again.
5. Experiment after maintenance. After the power engineering epoxy resin insulation layer epoxy resin insulation layer dry-type transformer is repaired, according to the relevant specifications and the characteristics of the repair location, targeted experiments are carried out to determine the quality after repair and determine the epoxy resin insulation layer epoxy resin Whether the insulated dry-type transformer can be put into operation.
