101, inspection of electrical equipment should comply with what provisions?
A: The inspection equipment should comply with following provisions:
(1) you shall not carry out other work, shall not remove or cross the barrier.
(2) In thunder and rainy days need to inspect outdoor equipment, you should wear insulated boots, shall not get close to lightning rod and arrester.
(3) If high-voltage equipment grounding fault occurs, the indoor personals shall not get close to the point of failure within 4m, the outdoor personals shall not get close within 8m near the point of failure, into the above-mentioned range of personnel must wear insulated boots, you should wear insulated gloves.
(4) after the inspection of the high pressure chamber check for it must be readily locked.
(5) In a special weather you should increase special patrol.
102, What are transformer gas relay inspection points?
A: Transformer gas relay inspection items are:
(1) gas relay connection pipe on the valve should be in the open position.
(2) Transformer respirator should be in normal working condition.
(3) gas protection connecting piece into the right place.
(4) Check the oil level of the oil pillow in the appropriate location, the relay should be filled with oil.
(5) gas relay waterproof cover should be firmly closed.
103, What are High voltage transformer normal patrol inspection points?
A: The voltage transformer normal tour deals with following inspection points:
(1) porcelain pieces with or without crack damage or abnormal discharge phenomenon.
(2) oil standard, oil level is normal, whether oil spills.
(3) Whether the terminal is loose.
(4) whether the overheating of the connector has discoloration.
(5) whether the moisture absorption agent has discoloration.
(6) No abnormal voltage indication.
104, What are Surge Arrester inspection points to consider?
A: The arrester inspection points are:
(1) check the porcelain part of whether there is damage, cracks and discharge phenomenon.
(2) Check whether the discharge logger is operating. [Power one two three]
(3) Check the wire connector is strong.
(4) Check whether the arrester internal has an abnormal sound.
105, What are bus inspection points?
A: The bus inspection items are:
(1) whether the contact part of a good contact, test wax is melting.
(2) check if the soft bus is broken, scattered shares phenomenon.
(3) after each ground fault, check whether the support insulators have discharge traces.
(4) In snow days you should check the bus line of snow and melting.
(5) after the thunderstorm you should check whether the insulator damage, cracks and discharge traces occurs at bus?
(6) You should arrange for clearing of debris before the wind starts.
106, What are power cable inspection points?
A: Power cable inspection inspection points are:
(1) check the cable and terminal box with or without leakage of oil, insulating plastic is softened overflow.
(2) Insulator is clean and complete, whether there are cracks and flashover traces, wire connectors are intact and not heated.
(3) check exposed cable sheath is complete with the solid support.
107, In the main control room of a substation, indoor relay protection and power distribution indoor equipment, what are the normal inspections?
A: The normal inspection of indoor equipment items are:
(1) no sound and Jiao smell.
(2) All instruments, signals, indicator windows should be consistent with the operating conditions, indicating correct measurements.
(4) system three-phase voltage balance (approximate), and in the specified range.
(5) power line, the main switch three-phase ammeter approximate balance.
