High-voltage current limiting fuse for voltage transformer protection

Product description： This product applies to indoor AC 50~60Hz system with the rated voltage of 3.6 ~ 40.5kV for the overload and short-circuit protection of voltage transformer. 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.ModelXRNP3A-□/□-50-□I (type 1), II (type 2), III (type 3) and IV (type 4)Basic parameters ModelRated Voltage (kV)Rated Current of Fuse Link (A)Main DimensionsDrawing No.Rated Breaking Current (kA)φALXRNP3A-3.63.6 0.2, 0.5, 1, 2, 3.15, 5 φ25.4 195 Fig. 1 50XRNP3A-7.27.2XRNP3A-1212XRNP3A-12120.5, 1, 2, 3.15φ25.4205Fig.51, 2, 3.15, 6.3, 10, 16φ51192Fig.2 XRNP3A-24 240.5, 1, 2, 3.15φ25.4324Fig.10.5, 1, 2, 3.15, 5, 6.3φ30324Fig.31, 2, 3.15, 6.3, 10φ51292Fig.2 XRNP3A-40.5 40.50.2, 0.5, 1, 2, 3.15φ25.4465Fig.1 31.50.5, 1, 2, 3.15, 5φ30465Fig.31, 2, 3.15, 5, 6.3, 10φ51442Fig.20.5, 1, 2, 3.15, 5, 6.3φ41440Fig.4

Model: XRNP

Type: High Voltage Current-Limited Fuse

Applicable: High Voltage

Colour：

Origin:
XiangYuan ZhenLi

Parameter
Specification
Service

This product applies to indoor AC 50~60Hz system with the rated voltage of 3.6 ~ 40.5kV for the overload and short-circuit protection of voltage transformer. 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

XRNP3A-□/□-50-□

I (type 1), II (type 2), III (type 3) and IV (type 4)

Basic parameters

Model	Rated Voltage (kV)	Rated Current of Fuse Link (A)	Main Dimensions		Drawing No.	Rated Breaking Current (kA)
Model	Rated Voltage (kV)	Rated Current of Fuse Link (A)	φA	L	Drawing No.	Rated Breaking Current (kA)
XRNP3A-3.6	3.6	0.2, 0.5, 1, 2, 3.15, 5	φ25.4	195	Fig. 1	50
XRNP3A-7.2	7.2
XRNP3A-12	12
XRNP3A-12	12	0.5, 1, 2, 3.15	φ25.4	205	Fig.5
XRNP3A-12	12	1, 2, 3.15, 6.3, 10, 16	φ51	192	Fig.2
XRNP3A-24	24	0.5, 1, 2, 3.15	φ25.4	324	Fig.1
		0.5, 1, 2, 3.15, 5, 6.3	φ30	324	Fig.3
		1, 2, 3.15, 6.3, 10	φ51	292	Fig.2
XRNP3A-40.5	40.5	0.2, 0.5, 1, 2, 3.15	φ25.4	465	Fig.1	31.5
		0.5, 1, 2, 3.15, 5	φ30	465	Fig.3
		1, 2, 3.15, 5, 6.3, 10	φ51	442	Fig.2
		0.5, 1, 2, 3.15, 5, 6.3	φ41	440	Fig.4

Main technical data

The fuse under specified operating conditions is able to reliably break any fault current from the fusion current to the rated breaking current 50kA.

Time - current characteristic curve is as shown in Fig. 6, Fig. 7 and Fig. 8.

Current limiting characteristic curve is as shown in Fig. 9.

Outline drawing of fuse