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745 Transformatorni himoya qilish tizimi kichik, oʻrta va katta quvvat transformatorlarini birlamchi himoya qilish va boshqarish uchun moʻljallangan, yuqori tezlikdagi, koʻp protsessorli, uch fazali, ikki yoki uch oʻrashli transformator boshqaruv relesidir. 

Texnik spetsifikatsiyalar:

  • Transformatorlar: Ikki yoki uch o'ramli
  • Chastotasi: 50 yoki 60 Gts nominal
  • Chastotani kuzatish:
    • 0,05 × CT
    • 5 dan 65 Hz gacha oqim > 1 × CT uchun
    • 2 dan 65 Gts gacha kuchlanish uchun > 50% VT (faqat kuchlanishni sezish yoqilgan bo'lsa)

KUCHNI BOSHQARISH

  • Variantlar: LO/HI (buyurtma berishda ko'rsatiladi)
  • LO diapazoni: 20 dan 60 V gacha shahar; 20 dan 48 V gacha o'zgaruvchan tok 48 dan 62 Gts gacha
  • HI diapazoni: 90 dan 300 V gacha shahar; 48 dan 62 Gts gacha bo'lgan 70 dan 265 V gacha o'zgaruvchan tok
  • Quvvat: 30 VA nominal, maksimal 40 VA
  • Kuchlanishdan o'tish vaqtining umumiy yo'qolishi (nazorat quvvati 0%): 16,7 ms
  • Sug'urta oqimining reytingi: 3,15A (sug'urtaga kirish imkoni yo'q)
  • Sug'urta turi: 5 × 20 mm sekin zarba Littelfuse, yuqori uzilish qobiliyati; 2153.15 modeli

FAZALIK KIRISH

  • Manba KT: 1 dan 50000 A gacha; 1 yoki 5 A ikkinchi darajali
  • O'rni kiritish: 1 A yoki 5 A (buyurtmada ko'rsatilgan)
  • Yuk: Har bir fazada nominal yukda 0,2 VA dan kam
  • Konversiya diapazoni: 50/60 Gts nominal chastotada 0,02 dan 46 × CT gacha
  • Aniqlik:
    • <4 × CT da: 50/60 Gts nominal chastotada 4 × CT (± 0,01 × CT) ning ±0,25%
    • ≥ 4 × CT da: 50/60 Gts nominal chastotada 46 × CT (± 0,2 × CT) ning ±0,5%
  • Haddan tashqari yuklarga bardosh berish: 80 marta nominal oqimda 1 soniya; 40 marta nominal oqimda 2 soniya; 3 marta nominal oqimda uzluksiz

YERGA TOKINI KIRISH

  • Manba KT: 1 dan 50000 A gacha birlamchi, 1 yoki 5 A ikkilamchi
  • O'rni kiritish: 1 A yoki 5 A (buyurtmada ko'rsatilgan)
  • Yuk: Nominal yukda 0,2 VA dan kam
  • Konversiya diapazoni: 0,02 dan 46 × CT gacha
  • Aniqlik:
    • <4 × KTda: 4 × KTning ±0,25% (±0,01 × KT)
    • ≥ 4 × KTda: 46 × KTning ±0,5% (±0,2 × KT)
  • Haddan tashqari yuklarga bardosh berish: 80 marta nominal oqimda 1 soniya; 40 marta nominal oqimda 2 soniya; 3 marta nominal oqimda uzluksiz

VOLTAJ KIRISHLARI

  • Manba VT: 2 - 600 kV / 60 - 120 V
  • Manba VT nisbati: 1 dan 5000 gacha
  • Rele kirishi: 60 dan 120 V gacha fazali neytral
  • Yuk: 120 V da 0,025 VA dan kam
  • Maksimal doimiy kirish: 273 V
  • Maksimal aniqlik kiritish: 260 V (to'liq o'lchamli)
Is our price competitive?
Topbrands collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
What is the warranty period?
We offer a standard one-year warranty for all new and original items.
What payment methods do we accept?
We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.
What is the warranty period?
We offer a standard one-year warranty for all new and original items.
What shipping methods do we use?
We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.
What is our delivery time?
Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.
How do we package the goods?
Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.
How can customers contact us and request a quote?
Customers can inquire via email, WhatsApp, WeChat, Skype, or any preferred communication platform. Simply reach out to us, and we'll promptly provide a quote tailored to your needs.

Topbrands PLC Limited is a top supplier of genuine new PLC and DCS parts, serving over 50 countries globally. We offer high-quality products from renowned brands like Bently Nevada, Honeywell, ABB, and more. With our warehouse in China stocking up to 30,000 pieces, we ensure rapid delivery to meet urgent order needs while maintaining competitive pricing to save our customers' budgets. Learn more...

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