250 KVA Pad Mount Three-Phase Oil-Immersed Distribution Transformer

 

E hahetsoe bakeng sa marangrang a literopo a kopaneng le a bobebe, 250 kVA pad-transformer e palamisitsoeng e sebelisa{2}maqhubu a holimo a koporo kapa aluminium le moaho o qoelitsoeng ka oli{3}. Moetso oa eona-oa mekhahlelo e meraro o netefatsa hore ho tsamaisoa ha motlakase ho tsitsitse, 'me sebopeho se lumella tlhahlobo le tlhokomelo e hlakileng.

 

 

 

 

The ZBW series prefabricated box-substation substation (eo hangata e bitsoang American-style box-type transformer) e na le "sehlahisoa"{3}}sebopeho sa sebopeho. Sesebediswa sa yona sa transfoma le se phahameng/tlase{5}}li kopantswe haufi le yuniti e le nngwe. Har'a lintlha-khōlō tsa moralo oa eona, mahlakore a mararo a transformer a pepesehetse moea{7}}e leng ho netefatsa hore mocheso o fela{8}}'me transformer e ka arohanngoa le likabelo tsa lisebelisoa tsa motlakase tse phahameng le tse tlase{9}, tse etsang hore ho be bonolo ho lokisoa.

Oli ea 813 series-transformer e qoelitsoeng e na le chip-tanka ea oli ea mofuta oa chip, ha e hloke mosamo oa oli, 'me e sebelisa moetso o koaletsoeng ka botlalo. Likaroloana tse kang-li-voltage tse phahameng le tse tlase{5}}li-voltage bushings, li-tap changer, li-indicators tsa boemo ba oli, li-valve tsa ho fokotsa khatello, le li-valve tsa ho ntša oli kaofela li kentsoe karolong e qetellang ea-kamore ea khatello e phahameng. Sebopeho sena se tiisa boemo ba likarolo tse utloahalang, se etsa hore se be bonolo bakeng sa ho shebella le ho sebetsa.

Kamore ea khatello e phahameng{{0}le phaposi ea khatello e tlase-e arotsoe ka tšepe. Leha sebaka sa khatello e phahameng{{3},{4}}kamore ea khatello e tlase, le transformer li batla li ikemetse, kaofela ha tsona li etsa lebokose le felletseng, le kopaneng. Moralo ona o hlahisa sebopeho se kopaneng, molumo o monyane, le moaho o bobebe. Ho feta moo, li-switchgear tsa motlakase li kentsoe mahlakoreng a -motlakase le a tlase{8}a mathoko a seteishene.

 

 

 

 

Pad-transformer e kentsoeng e tlameha ho sebetsa tlas'a maemo a itseng a tikoloho ho netefatsa hore ts'ebetso e tsitsitse le ts'ebetso e bolokehileng, 'me litlhokahalo li kopantsoe ho tsoa mehloling ka bobeli ea data ka tsela e latelang:

1. Cooling Boemo
E amohela-mokhoa oa ho ipholisa, o itšetlehile ka ho potoloha ha moea oa tlhaho ho ntša mocheso o hlahisoang nakong ea ts'ebetso ea transformer, e loketseng moralo oa eona le maemo a tloaelehileng a ts'ebeliso.

 

2. Lebelo la moea:
E lekanang le 34m/s (e seng ho feta 700 Pa);

 

3. Tlhokahalo ea Mocheso
Mocheso o ka ntle oa tikoloho ha oa lokela ho ba holimo ho likhato tse 40 le ho se theohe ho -45 degrees .
Mocheso o tloaelehileng oa khoeli le khoeli ha oa lokela ho feta likhato tse 30, 'me mocheso oa selemo le selemo ha oa lokela ho feta likhato tse 20. Sena se fokotsa mocheso oa nako e telele-ho thibela ho theoha ha mocheso ho bakoang ke ho bokellana ho feteletseng ha mocheso.

 

4. Tlhokahalo ea Bophahamo
Bophahamo ba ho kenya ha boa lokela ho feta 1000m.

 

5. Tlhokahalo ea Mongobo
Ka mocheso oa likhato tse 25, mongobo o phahameng oa moea ha oa lokela ho feta 95%, 'me mongobo o lekanyelitsoeng oa letsatsi le letsatsi ha oa lokela ho feta 90%.

 

6. Tlhokahalo ea ho sisinyeha le ho potlakisa
Ho potlakisa ho otlolohileng ha sebaka sa ho kenya ha hoa lokela ho feta 0.3g, 'me ho potlakisa ho otlolohileng ha hoa lokela ho feta 0.15g).

 

7. Tlhokahalo ea sethala sa ho kenya
Sebaka sa ho kenya se lokela ho hloeka, se hloke likhase tse phatlohang kapa tse senyang, lerōle le tsamaisang, ho thothomela ho matla, le tšusumetso. Moepa o ke ke oa feta 3℃, 'me transformer e tlameha ho behoa sethaleng se bataletseng, se tiileng sa samente ho netefatsa botsitso.

 

8. Bakeng sa litaelo tsa sehlahisoa ho feta maemo a boletsoeng ka holimo, ka kopo buisana le k'hamphani ea rona.

 

 

 

 

• Boholo bo nyane, sebopeho se kopaneng, le ho kenya habonolo: E ka sebelisoa bakeng sa marang-rang a mehele le lits'ebetso tsa terminal, ka ts'ireletso e tšepahalang ea polokeho ea motho.
• Tahlehelo e tlase, lerata le tlase, le ts'ebetso e phahameng
• Moralo oa khabinete e khahlanong le-ea bosholu: Khabinete e sebelisa mokhoa o khahlano le-ea bosholu.
• Ho phahama ha mocheso o tlase le bokhoni bo matla ba ho jara

 

 

 

 

Sebopeho se kopaneng le boholo bo bonyenyane: E lekana feela le 1/3 ho isa ho 1/5 boholo ba mabokose a Europe{4}} a boholo bo lekanang, a fokotsa haholo sebaka sa fatše.
Mohaho o tiisitsoeng ka ho feletseng le o sirelelitsoeng ka ho feletseng: Sena se felisa tlhoko ea bohole ba ho itšireletsa 'me se fana ka tšireletso e tšepahalang ea tšireletso.
Khokahano e feto-fetohang e phahameng-ea motlakase: E ka sebelisoa bakeng sa likhokahano tsa marang-rang le litheminale, e fana ka mekhoa e feto-fetohang ea phepelo ea motlakase le ts'epahalo e phahameng.

Ts'ebetso e ntle ka ho fetesisa ea li-transformer: Transformer e na le tahlehelo e tlase, lerata le tlase, ho phahama ha mocheso o tlase, matla a mangata, 'me e sebetsa ka nako e khuts'oane haholo-ea potoloho.
E ka ikamahanya le litlhoko tsa -tlase ea motlakase: E khahlametsa litlhoko tsa maemo a fapaneng a -ea matla a motlakase a tlase, 'me e ka khethoa ho latela meralo e teng kapa e behiloe ho latela litlhoko tse itseng.

Likhokahano tsa li-cable le lisebelisoa tse tšehetsang: Ho na le mefuta e 'meli ea likhokahano tsa cable{0}}li-cable head plugs le 600A/200A elbow{3}}type fixed joint joints. E ka boela ea hlomelloa ka lisebelisoa tse kentsoeng ka botlalo tsa zinc oxide arrester. Ho feta moo, 200A cable head e ts'ehetsa ho chesa ka ho feletseng-'me e sebetsa e le sesebelisoa se ikhethileng.
 

 

 

 

Sehlahisoa sena se lumellana le maemo a latelang:

• GB/T 17467-1998 High-Voltage/Low-Voltage Pre-Instated Substations
• DL/T 537-1993 Maemo a Tekheniki a ho Odara 6-35kV Box-Type Substations
   

Mekhahlelo ea mantlha ea tekheniki

Nomoro ea letoto	Ntho	Diyuniti	Tekheniki parameter
1	Matla a lekantsoeng	KV	10/0.4 (voltage e phahameng/tlase)
2	Boholo ba matla a ho sebetsa	KV	12 (Lehlakore le phahameng la motlakase)
3	E lekantsoe khafetsa	Hz	50
4	E lekantsoeng ka matla	KVA	150-1600
5	1min maqhubu a matla a mamella voltage	KV	35
6	Lehalima impulse voltage	KV	75
7	Mokhoa oa ho pholisa	-	Oli-e qoelisa{1}}e pholile
8	Fuse e phahameng ea motlakase e senyang hona joale	KA	50
9	Phahamiso e ntseng e eketseha ea plug{0}}in fuse	KA	2.5
10	Mocheso oa tikoloho	tekanyo	-35 ~ +40
11	Ho phahama ha mocheso ho lumellehang	K	65
12	Ha ho-taolo ea motlakase oa motlakase	-	±5% kapa ±2×2.5%
13	Boemo ba lerata	dB	50
14	Sehlopha sa tšireletso	-	IP43

 

 

 

Ho khethiloe 'mele o mocha oa li-transformer tsa S9, o nang le tahlehelo e tlase, matla a mangata a mangata, le khanyetso e matla-ea potoloho e khuts'oane; li-fasteners tsohle li sirelelitsoe. Ntle le moo, ho ka khethoa letoto la S11 ringless core transformer (e nang le ts'ebetso e ntle) le eona e ka khethoa.
'Mele o mocha oa transformer Selected S9 series, tahlehelo e tlase, matla a mangata a mangata, ho thibela ho sekala ha nako e telele{1}, lifasteners kaofela li sirelelitsoe. Letoto la S11 ring jointless core transformer le ts'ebetso e ntle le eona e ka khethoa.

 

Bokhoni (KVA)	Voltage KV - Mathata a phahameng	Voltage KV - Khatello e tlase	Kenya sehlopha sa label	Ha ho-load current % - S9	Che-moroalo oa hajoale % - S10	Che-moroalo oa hajoale % - S11	Ha ho tahlehelo ea thepa W - S9	Ha ho tahlehelo ea thepa W - S10	Ha ho tahlehelo ea thepa W - S11	Impedans voltage %	Ho lahleheloa ke mojaro
160	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	1.4	1.4	0.2	400	320	255	4	2200
200	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	1.3	1.3	0.2	480	380	305	4	2600
250	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	1.2	1.2	0.2	560	450	360	4	3050
315	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	1.1	1.1	0.2	670	530	425	4	3650
400	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	1	1	0.15	800	650	505	4	4300
500	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	1	1	0.15	960	750	605	4	5100
630	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	0.9	0.9	0.15	1200	910	755	4	6200
800	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	0.8	0.8	0.15	1400	1080	980	4.5	7500
1000	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	0.7	0.7	-	1700	1260	-	4.5	10300
1250	10±5% kapa 2×2.5%	0.4	Dyn11/Y, joalo	0.6	0.6	-	1950	-	-	4.5	12000

 

 

 

 

Ka lehlakoreng le phahameng{{0}lehlakoreng la "voltage" la American-style box-type substation, full-rengeal protection e fanoa ke backup fuse le plug{4}}in fuse e hokahaneng ka lihlopha. Molao ona oa ts'ireletso o bonolo, o theko-o sebetsa hantle, ebile oa tšepahala.
Fuse e sireletsang bekapo ke oli-e qoeletseng holimo{1}}voltage current-e fokotsang fuse e nang le matla a ho robeha haholo; e sebetsa feela ha ho na le phoso ea ka hare ho transformer. Plug-in fuse e na le ntho e habeli-e utloang bohloko, e fanang ka tšireletso khahlano le ho feta tekano le mocheso o feteletseng. Hang ha karolo e habeli-ea fuse e utloang bohloko e foka, e ka nkeloa sebaka habonolo-saeteng.

 

 

 

 

1. Litlhoko tsa motheo tsa ho jara-: Motheo o tlameha ho mamella khatello e fetang 100 kPa.
2. Motheo oa libaka tse phahameng: Etsa bonnete ba hore ho na le drainage e nepahetseng ho potoloha motheo. Motheo o lokela ho hahoa ka litene tse khubelu le seretse sa samente; marako a ka ntle a tla liloa ka seretse sa samente sa 1: 2 (20 mm botenya), 'me ho eketsoe moemeli oa 3% oa ho thibela metsi.
3. Mocheso oa phaposi ea likhoele: Karolo e ka tlase ea phaposi ea lithapo e lokela ho sekamela hanyane ho pompo ea pokello ea metsi ho tsamaisa metsi.
4. Ho kenya letlooeng la tšepe le likhopo: Sebelisa letlooeng la tšepe la 150×300 le nang le (10×20) le masoba a sebōpeho sa taemane{5}; weld likhopo leboteng le ka hare la foreimi e kantle.
5. Ho lumellana le litekanyetso: Kaho ea Motheo e tla lumellana le litokisetso tse amehang tsa JGJ16-83 Code for Motlakase oa Moralo oa Mehaho.
6. Litlhoko tsa tsamaiso ea fatše: Etsa litlhahlobo tse tloaelehileng holim'a tšepe e kholo ea fatše le lipheletsong tsa eona tsa ho kopanya. Mohala oa motheo o tsamaisoang ho tloha ka har'a moqomo oa cable o ka tsamaisoa ho potoloha moeli oa khabinete ea marang-rang kapa ea atolosoa ho tloha lehlakoreng le leng bakeng sa ho theola fatše. Khanyetsano ea motheo e tla ba ka tlase ho kapa e lekanang le 4 ohms.
7. Referense ea boholo: Latela litekanyo tse boletsoeng setšoantšong sa kaho (joalokaha ho khothalelitsoe).
8. Cable well flexibility: Bakeng sa boiketlo ba basebelisi, liliba tsa cable li ka kengoa ka litsela tse 3 ho isa ho tse 4 sebakeng sa-ho ipapisitsoe le maemo a sebele.
 

 

 

 

S/N	Lebitso	Yuniti	Tekheniki Parameter
1	Rated Voltage	KV	10/0.4
2	High{{0}voltage Side Rated Voltage	KV	10
3	Tlase{{0}voltage Side Rated Voltage	KV	0.4
4	Matla a phahameng a ho sebetsa (Lehlakore la motlakase o phahameng)	KV	12
5	Rated Frequency	Hz	50
6	E lekantsoe Bokhoni	KVA	150-1600
7	High{{0}voltage Switch Heat Stable Stable Stable	KA	20/26
8	Low{{0}voltage Main Circuit Breaker Rated Short{1}circuit Breaking Capacity	KA	35
9	Low{{0}voltage Distribution Circuit Breaker Rated Short{{1}circuit Breaking Capacity	KA	35
10	High{{0}voltage Load Switch Transfer Current	A	>1500
11	1 mets Frequency ea Matla a Matla a Mamelang Voltage	KV	35
12	Lehalima Impulse Voltage	KV	75
13	Mokhoa oa ho Pholisa	-	Ho ipholisa ka oli-
14	High{{0}voltage Backup Fuse Breaking Current	KA	50
15	Ho Qetella Hona Joale ha Plug-in Fuse	KA	2.5
16	Ambient Mocheso	tekanyo	-35 ~ +40
17	Coil Lumella Mocheso Ho phahama	K	65
18	Ha ho-load Voltage Regulation	%	±5% kapa ±2 × 2.5%
19	Boemo ba Lerata	dB	<50
20	Tšireletso ea Sehlopha sa Box Shell	-	E seng ka tlase ho IP3X

 

Boemo ba Insulation

Matla a lekantsoeng (KV)	10			0.4
	Transformer	Fetolela fatše le mohato ho ea ho mohato	Pakeng tsa disconnectors
Maqhubu a matla a mamellang motlakase (KV)	35	42	48	2.5
Tlhōrō ea boleng ba impulse withstand voltage(KV)	75	75	85	–

 

 

 

 

Ho khethiloe 'mele o mocha oa li-transformer tsa S9, tahlehelo e tlase, bokhoni bo bongata ba lintho tse ngata, ho hanyetsana le potoloho e nyane-, lifasteners kaofela li sirelelitsoe. Letoto la S11 ring jointless core transformer le ts'ebetso e ntle le eona e ka khethoa.

 

Bokhoni ba KVA	Motlakase oa KV		Kenya sehlopha sa label	Ha ho-moroalo oa hajoale %			Ha ho tahlehelo ea mojaro W			Impedans voltage %	Ho lahleheloa ke mojaro
	Khatello e phahameng	Khatello e tlase		S9	S10	S11	S9	S10	S11
160	10±5% kapa 2×2.5%	0.4	Dyn11 Yno	1.4	1.4	0.2	400	320	255	4.0	2200
200				1.3	1.3	0.2	480	380	305		2600
250				1.2	1.2	0.2	560	450	360		3050
315				1.1	1.1	0.2	670	530	425		3650
400				1.0	1.0	0.15	800	650	505		4300
500				1.0	1.0	0.15	960	750	605		5100
630				0.9	0.9	0.15	1200	910	755		6200
800				0.8	0.8	0.15	1400	1080	980		7500
1000				0.7	0.7	-	1700	1260	-	4.5	10300
1250				0.6	0.6	-	1950	-	-		12000

 

Ntho Lebitso		Diyuniti	315A	630A
Matla a lekantsoeng		KV	12	12
Boholo ba hona joale		A	315	630
E lekantsoe khafetsa		Hz	50	50
Nako e khutšoanyane ea ho koala{0}nako ea potoloho		kA	31.5	50
E fuoe nako e khutšoane-e emelang hajoale		kA	12.5	50
E lekantsoe nako e khuts'oane ea mamello		S	2	2
Bophelo ba mechine		Reite-ea bobeli	2000	2000
Teko ea matla a matla	Phase to phase	KV	75	75
	Ho robeha ho itšehla thajana		85	85
1min maqhubu a matla a mamella voltage	Phase to phase	KA	42	42
	Ho robeha ho itšehla thajana		48	48
E lekantsoe tlhoro e mamellang hajoale		KV	31.5	50

 

 

Bokhoni	A	B	C	H	Boima ba KG
200kVA le ka tlase	1830	1420	820	1850	＜ 2800
250-400kVA	1830	1450	850	1980	3000-3300
500-630kVA	1830	1480	880	2070	3600-3950
800kVA	2200	1700	950	2170	4500

Tlhokomeliso: Tse ka holimo ke boholo bo tloaelehileng bakeng sa litšupiso.

 

Bokhoni	A	B	C	H	Boima ba KG
315kVA	2560	1600	600	1000	3050
400kVA	2560	1600	600	1000	3270
500kVA	2560	1600	600	1000	3400
630kVA	2560	1600	600	1000	3900
800kVA	2760	1600	800	1000	4200
1000kVA	2760	1950	800	1000	4800
1250kVA	2910	1950	800	1000	5400
1600kVA	2200	1700	950	2170	4500

Tlhokomeliso: Tse ka holimo ke boholo bo tloaelehileng bakeng sa litšupiso.