Prosedûra Biniyê ya Destpêkkirina Tranformatorên bi Padê Serastîne

1. Hûkariya Dastînê

Vê teknîk spesifikasyonê li ser destkirina transformatoran pad - mounted dastîne.

1.1 Prosesa Biniyê

1.2 Nivîsana Prosesa Biniyê Standard
2. Pêşdestkirina Biniyê

(1) Sîsteman û Karbêjên Berekar

• Amûr û Karbêjên Berekar û Darkev: Truck crane, truck, winch, chain hoist, three - step rack, cribbing, steel wire rope, strap rope, rolling bar.

• Karbêjên Destkirina: Bench grinder, electric welding machine, gas welding tools, electric hammer, adjustable wrench, hammer, pipe - threading die, electrician's ladder, electric drill.

• Karbêjên Testkirina: Steel tape measure, steel ruler, level, plumb bob, megohmmeter, multimeter, clamp - on ammeter, thermometer, bridge and test instruments.

(2) Şertan Biniyê

• Nivîs û belgekan teknîkî têkiliyên biniyê pêk hatin û rast in.

• Çi karên zimanî bi xweyên rast kirin, ewleviyayên, mezajeyên, şaklan û nermayên pre - embedded û weldments hêsan tune dihêjin.

• Şer ên çi karê hatine rakirin, û çiyan nekînin.

• Fundamenta pad - mounted substationê qebûl kirin û standarde tune, û pre - reserved holes for the incoming and outgoing lines of the electrical conduits and cable conduits embedded in the foundation and the relevant pre - embedded parts are inspected and meet the requirements.

(3) Karker:

• Karkerên Berekar: Electricians, crane operators, commissioning workers. Karkeran divê bi mafanî karrûsa vebegirtin û bi resnamek bibixin.

3. Kontrola Gorî Transformatoran

Paçê pad - mounted substationê derbas bike, gorî transformatoran, parametreyên nameplate, belgekan random, û piçeyên û komponenteyên berfireh kontrol bikin.

(1) Resnameka qebûlkirina û belgekan teknîkî yên berfireh kontrol bikin. Pad - mounted substation divê recordên testê fabrikê heybin.

(2) Transformer divê nameplate heybin. Nameplate divê wekheviyên prodûcer, rated capacity, primary and secondary rated voltages, current, impedance voltage (%), connection group, û data teknîkî yên din nîşan dekin. Piçeyên berfireh be; bahanên îzolan veqetandin û çilkerdikan tune; anjaman û bahanên oil - filled tune; û indikasyonê ya air pressure û coating ên gas - filled high - voltage equipment tune û be.

(3) Section Steel: Her cêm û specification û section steel divê wekheviyên dizaynê tune û tune çelik.

(4) Bolts: Ji bo anchor bolts û bolts û anti - vibration devices, galvanized bolts bikar bînin, bi flat washers û spring washers.

4. Destkirina Pad - Mounted Substation

(1) Karbêjên lêgerînê ya xas bikar bînin ji bo lêgerîn jêrîn.
(2) Pad - mounted substation bi navîn destkirin ji bo fundamenta pêşdestkirin. Yene, gap yan di nav product base û fundamenta de bi cement mortar bezanin da ku hêla rainwater ji bo cable chamber bêtir bike. Cables high - voltage û low - voltage bi plates sealing û chambers high - voltage û low - voltage.

(3) Gap yan di cable û conduit de bezanin da ku hêla water bêtir bike.
(4) Paçê destkirina, grounding reliable bikin: Two main grounding terminals û slot û neutral point û enclosure û transformer û lower terminal û arrester her bir grounding direct bikin. Setek grounding devices bikar bînin ji bo hemû grounding points. Grounding piles drive bikin ji bo four corners û fundamenta û yene connect bikin ji bo single unit. Grounding resistance tune û less than 4 ohms, û there shall be no fewer than two grounding leads from the grounding grid to the pad - mounted substation.

5. Kontrola Lêgerîn û Testkirina Elektrik

(1) Tests û pad - mounted substation divê wekheviyên regulations û tune:
Ji bo pad - mounted substation û three independent units, high - voltage switchgear, low - voltage switchgear, û transformer, tests û high - voltage electrical equipment part û tune bi provisions û Standard for Acceptance Test of Electrical Equipment in Electrical Installation Engineering (GB50150) û tune.

(2) Ji bo pad - mounted substation û high - voltage switch fuses û transformer û tune bi sealed oil tank, tests û tune bi requirements û technical documents û product.

(3) Tests û low - voltage switchgear divê wekheviyên regulations û tune:
Models û each distribution switch û protection device û tune bi design requirements;
Insulation resistance value between phases û between phases û ground û greater than 0.5MΩ;
AC withstand voltage test voltage û 1kV. Paçê insulation resistance value û greater than 10MΩ, 2500V megohmmeter bikar bînin instead. Test duration û 1 minute, û there shall be no flashover û breakdown phenomena.

6. Qebûlkirina Çalakî

(1) Documentation: Factory - provided documents, installation û test records, construction drawings, û explanatory documents for design changes, etc.

(2) Paçê commissioning û pad - mounted substation, comprehensive inspection û equipment bikin.

• High - voltage plug connected reliable; arrester û pad - mounted substation grounded reliable.

• Hemû meters û high - voltage side indicate normally.

• Plug - in fuse tube installed in place; tap - changing switch in correct position; load switch in open position.

• Hemû electrical components û low - voltage side in open state.

Paçê inspection completed, paçê connecting power supply û operating load switch, instructions û load switch operation û inner side û high - voltage side door panel read first, û then equipment can be put into operation.

References

• DL/T 5190.5 - 2004 Technical Specification for Construction and Acceptance of Electric Power Construction.

• GB 50150 - 2006 Standard for Acceptance Test of Electrical Equipment in Electrical Installation Engineering.

• DL/T 5161 - 2002 Regulations for Quality Inspection and Evaluation of Electrical Installation Engineering.