By Sunny | 18 March 2020 | 0 Comments
Automatic trip processing of transformer
Leilang-Electric is located in Shanghai,China.We are specialized in manufacturing all kind of low voltage transformer,three phase transformer,single phase transformer, control transformer,variac transformer,voltage stabilizer, ac stabilizer,power regulator, reactor, etc.
If there is a standby transformer, it shall be put into operation quickly.
If the auxiliary standby transformer with automatic input device is not put into operation automatically, it shall be put into operation manually immediately. If it trips after being put into operation, it shall not be put into operation again.
Find out the protection alarm, distinguish what kind of protection device acts, check outside the transformer, and report to the substation and shift supervisor.
If differential protection acts:
Carry out external inspection of all electrical equipment within the scope of differential protection to see if there is damage and flashover.
Check the oil level, oil color, pressure release device, panel and cabinet of the transformer in detail.
Cut off the power and measure the insulation resistance.
Inform maintenance to check protection and secondary circuit.
It is found that it is not the fault of the transformer itself, and it can be put into operation after the external fault is eliminated.
If the system transformer itself fails, it shall not be put into operation without passing the test by the maintenance personnel.
For transformers without differential protection, when the instantaneous overcurrent protection acts, it shall be checked and handled according to the contents specified in the differential protection act.
When overcurrent protection acts:
If there is no short-circuit impulse or voltage drop in the meter, it is due to protection maloperation, maloperation and secondary circuit failure, then the transformer can be put into operation again without external inspection.
If the meter has short-circuit impact, voltage drop and other phenomena, judge whether the external fault causes over tripping. When the external fault is eliminated and there is no problem after the external inspection of the transformer, it can be put into operation.
If any question about power supply for the equipments,
just feel free to tell us, we will provide the best solutions to you within 24 hours.
Take knowledge of us by more stories: http://www.leilang-electric.com
Where can you buy our products: https://shleilang.en.alibaba.com
How can you contact us for more details?
Tel.: +86 21 59585699
Mob /Skype/Wechat: +86 181 1725 4552
WhatsApp：+86 182 2450 3809
Mail: sales2@leilang-electric.com
If there is a standby transformer, it shall be put into operation quickly.
If the auxiliary standby transformer with automatic input device is not put into operation automatically, it shall be put into operation manually immediately. If it trips after being put into operation, it shall not be put into operation again.
Find out the protection alarm, distinguish what kind of protection device acts, check outside the transformer, and report to the substation and shift supervisor.
If differential protection acts:
Carry out external inspection of all electrical equipment within the scope of differential protection to see if there is damage and flashover.
Check the oil level, oil color, pressure release device, panel and cabinet of the transformer in detail.
Cut off the power and measure the insulation resistance.
Inform maintenance to check protection and secondary circuit.
It is found that it is not the fault of the transformer itself, and it can be put into operation after the external fault is eliminated.
If the system transformer itself fails, it shall not be put into operation without passing the test by the maintenance personnel.
For transformers without differential protection, when the instantaneous overcurrent protection acts, it shall be checked and handled according to the contents specified in the differential protection act.
When overcurrent protection acts:
If there is no short-circuit impulse or voltage drop in the meter, it is due to protection maloperation, maloperation and secondary circuit failure, then the transformer can be put into operation again without external inspection.
If the meter has short-circuit impact, voltage drop and other phenomena, judge whether the external fault causes over tripping. When the external fault is eliminated and there is no problem after the external inspection of the transformer, it can be put into operation.
If any question about power supply for the equipments,
just feel free to tell us, we will provide the best solutions to you within 24 hours.
Take knowledge of us by more stories: http://www.leilang-electric.com
Where can you buy our products: https://shleilang.en.alibaba.com
How can you contact us for more details?
Tel.: +86 21 59585699
Mob /Skype/Wechat: +86 181 1725 4552
WhatsApp：+86 182 2450 3809
Mail: sales2@leilang-electric.com
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