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Current limiting backup fuse

High-voltage limit-current fuse for instruments transformer protection


Mode:XRNP1-口/口-口-1

Voltage:24kv

Current:0.2、0.3、0.5、1、2、3.15A

Email: [email protected]

Reference:GBI5166.2 and IEC282-1

Keyword:limit-current

High-voltage limit-current fuse for instruments transformer protection

□This product can be used in indoor system of AC50HZ and rated voltage of 3.6-40.5KV to protect the voltage mutual-inductor from over loading and circuit break.(tested by-inductor from overloading and circ-uit break) ( Tested by National high-voltage quality Supervising and Testing Center , in accordance with GBI5166.2 andIEC282-1 )

Type instruction

limit-current fuse

Basic parameters

The basic parameters of the fuse are shown in Table 1

Type        Rated Voltage(KV)     Rated current(A)   Rated brake current(KA) Overall dimensions
XRNP1-口/口-口-1 7.2 ( 3.6 ) 12 0.2、0.3、0.5、1、2、3.15 50 See Figure 1
XRNP1-口/口-口-1 24 0.2、0.3、0.5、1、2、3.15 50 See Figure 2
XRNP1-口/口-口-2 12 2、3.15 50 See Figure 3
XRNP6-口/口-口-1 40.5 0.2、0.3、0.5、1、2、3.15 31.5 See Figure 4(Φ25)
XRNP6-口/口-口-3 0.2、0.3、0.5、1、2、3.154、5 See Figure 5(Φ30)
XRNP6-口/口-口-4 0.2、0.5、1、2、3.15、5、63 See Figure 6(Φ41)

See Figure

Note: Among them, 7.2KV, 12KV (Φ25 pipe diameter) have three kinds of non-standard wiring form see Figure 7

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Designing sequence

protection purpose

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