High-Voltage Current Limiting Fuse for The Short-Circuit Protection of Oil-Immersed Transformer

Name: High-Voltage Current Limiting Fuse for The Short-Circuit Protection of Oil-Immersed Transformer
Brand: all-electronics-online.com
SKU: 831421655
Availability: InStock
Rating: 4.4 (97 reviews)

Price:	Negotiable/Piece
Min Order:	10/Piece
Pay Type:	T/T

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Showroom Product Company Profile

This product applies to indoor AC 50~60Hz system with the rated voltage of 8.3 ~ 40.5kV for the short-circuit protection of transformer and other power equipment, and is used in series with the oil-immersed transformer overload protection fuse, and can provide the full range protection for indoor power system. The product has passed the type test conducted by the national high-voltage electrical equipment quality supervision and inspection center, and conforms to GB15166.2 and IEC282-1.
Model
XRNT3A-15.5(40.5)/-50(31.5)

Basic parameters

Product Model	Rated Voltage (kV)	Rated Breaking Current (kA)	Rated Current of Fuse Element (A)	Standard Size
Product Model	Rated Voltage (kV)	Rated Breaking Current (kA)	Rated Current of Fuse Element (A)	A(mm)	B(mm)	φD(mm)
XRNT3A-15.5	15.5	50	31.5, 40, 50	248	216	φ54
			63, 80, 100, 125	356	324	φ54
			150, 175	405	373	φ54
XRNT3A-40.5	40.5	31.5	10, 16, 20, 25, 31.5, 40	570	537	φ54

Technical data
Fuse is normally used in transformer oil with the ambient temperature not exceeding 100ºC, and fuse link is of the bolted structure.
The fuse under specified operating conditions is able to reliably break any fault current from the minimum breaking current (3~5) ln to the rated breaking current 50kA.
Time - current characteristic curve of fuse is as shown in Fig. 2 and Fig. 3.
Current limiting characteristic curve of fuse is as shown in Fig. 4.

Outline and installing dimensions

Fig.1 a) Outline drawing of XRNT3A-15.5 (40.5) fuse link

Fig. 1 b) Clamping and arrangement of XRNT3A-15.5 (40.5) fuse at oil tank

Fig. 2 XRNT3A-15.5 time - current characteristic curve

Fig.3 XRNT3A-40.5 time - current characteristic curve

Fig.4 XRNT3A current limiting characteristic curve

Prod Model:	XRNT3A-15.5(40.5)/-50(31.5)
Breaking Capacity:	High
Type:	Current Fuse
Usaga:	High Voltage
Fusing Device:	Link Break

Founded on March 7, 1998, Shaanxi Zhenli Electric Power Technology Co., Ltd. (formerly known as Xi'an Zhenli Fuse Co., Ltd. ) was located in F4-402 Lutong Industrial Park, East Section of Kuangshan Road, East Er'huan, Xi'an with the industrial plants covering 1771.08 square meters. As the company business gradually expanded, it was moved to No 2055, Shanglinyuan No. 5 Road, High-tech District, Xi'an in 2017, with three self-built standard plants covering 20847.26 square meters and a total of 80 staff including 8 research staff, 6 professionals and 6 product designers. As required by High-tech District of Xi'an, the company was restructured into Xi'an Xiangyuan Zhenli Electric Co., Ltd., a high-tech enterprise specialized in research and development, production and sales of indoor and outdoor fuses whose production scale and technical level lead the industry in China. So far, the number of fuses running in the power grid in the world is more than 3 million and the company has rich experience of line operation. Its products cover the voltage within 3.6~40.5kV and the current within 0.2A~315A. Its main products belong to new-energy wind-photovoltaic power hybrid power generation system strongly supported and developed by the nation. Currently, its main clients are Schneider, ABB, TBEA, Shandong Taikai, Jiangsu Huapeng and other Top 500 enterprises in the world and listed companies in China. The products are sold as far away as Portugal, Thailand, Mexico, Pakistan and other countries.