Fuse/Var Technical Data 38-852CAPACITOR FUSES Selection Guide

Interrupting TypeABB Voltage Rated Capability Discharge (Combination) Application SeeType Rating Current Iind Icap Capability (Current Limiting) (Indoor) Page

(kV) (Amperes) (kA) (kA) (Kilojoules) (Expulsion) (Outdoor) Number

1.2 kV 25A - 175A 115 kA 1.25 kA 50K Current Limiting Indoor1.8 kV 25A - 175A 40 kA 1.25 kA 80K Current Limiting Indoor

CLC 2.5 kV 25A - 75A 35 kA 1.25 kA 80K Current Limiting Indoor 53.0 kV 25A - 130A 35 kA 1.25 kA 100K Current Limiting Indoor

4.3/2.5 kV 25A - 75A 60 kA 1.25 kA 80K Current Limiting Indoor

5.5 kV 15A - 65A 40 kA 2.9 kA 77K Combination IndoorCIL 8.3 kV 8A - 40A 60 kA 2.9 kA 75K Combination Indoor 9

15.5 6A - 25A 90 kA 800 Amps 88K Combination Indoor

9.7 kV 6A - 100A 10 kA 1.9 kA 30K Expulsion Outdoor16.6 kV 6A - 50A 5 kA 2.1 kA 30K Expulsion Outdoor

CXP 26.2 kV 6A - 50A 2.5 KA .8 kA 30K Expulsion Outdoor 13

2.8 kV 25A - 80A 40 kA 2.9 kA 85K Combination Outdoor5.5 kV 15A - 65A 40 kA 2.9 kA 77K Combination Outdoor

COL 8.3 kV 8A - 40A 60 kA 2.9 kA 75K Combination Outdoor 715.5 kV 6A - 25A 90 kA 2.3 kA 88K Combination Outdoor23.0 kV 6A - 15A 60 kA 800 Amps 50K Combination Outdoor

2.5 kV 15A - 33A 0 > 1.4 kA No Limit Combination Outdoor5.0 kV 8A - 33A 0 > 1.4 kA No Limit Combination Outdoor8.0 kV 6A - 33A 0 > 1.4 kA No Limit Combination Outdoor

CLXP 10.0 kV 15A - 33A 0 > 1.4 kA No Limit Combination Outdoor 1115.0 kV 10A - 33A 0 > 1.4 kA No Limit Combination Outdoor20.0 kV 8A - 33A 0 > 1.4 kA No Limit Combination Outdoor25.0 kV 8A - 33A 0 > 1.4 kA No Limit Combination Outdoor

ABB Power T&D Company Inc.

Type CIL Fuses - (Indoor) Current Limiting Capacitor Fuse For Use In Metal - Enclosed Equipment

9

General DescriptionThe Type CIL Fuse is a full range current limiting capacitor fuse. It isdesigned for indoor use only. CIL fuses exist in voltage classes of 5.5 kV,8.3 kV, 15.5 kV and 23kV. The primary application of these fuses is indi-vidual capacitor unit fusing for metal enclosed equipments. The CIL fuseis current limiting, indicating and disconnecting.

The Type CIL current limiting capacitor fuse is a two part design:

The high current section interrupts high 60 Hz fault currents and/or highfrequency discharge current from parrallel capacitors.

The low voltage section consists of a standard NEMA type K fuse linkmounted in a fiber tube. The low current section interrupts fault currentassociation with progressive failure of the capacitor unit DIELECTRIC, or60Hz fault current limited by the circuit impedance to low values.

This type of design reduces fuse replacement cost to the price of aNEMA type K fuse link when low current interruption occurs.

The CIL capacitor fuse must be used with an ejector spring. (see page10). This spring ejects the link’ s leader giving a position indication of ablown fuse.

ApplicationVoltage: The CIL fuse is used only for fusing individual single phasecapacitor cans. Therefore, the CIL fuse voltage rating can be determinedfrom the voltage rating of the capacitor unit - (see Table 1). Do not applyCIL fuses above their rated voltage.

Energy: The CIL fuse is generally used on those capacitor banks whereparallel energy is more than 20 kilo-joules or 6000 kVAR. The CIL fuse’smaximum parallel capacitor discharge energy rating is shown in theTechnical Data table.

CIL fuses are to be applied ONLY where there are 2 or more capacitorsin parallel per group and where low inductively limited faults can flow .See appendix.

CurrentTable 1 lists the individual fusing recommendations for applying CILfuses in indoor capacitor banks. The fusing tables are based on the fol-lowing:

Capacitor Current= kVar unitkV unit

Minimum Fuse Current= Capacitor Current X 1.35 Protective Margin.

The protective margin accounts for normal overvoltages, harmonics,capacitor tolerances and a 40° C. ambient.Note: Table 1 current ratings are based on 40° C. ambient style numbersshown in Table 2. Derated current ratings for 55° C. ambient applications,are also shown in Table 2.

CAPACITOR FUSES TD 38-852

SELECT: Fuse Voltage Rating and Current Rating (40°C)TABLE 1 (The Fuse Current Ratings Shown are Based on Available Fuse

Styles Shown in Table 2)Capacitor Voltage Fuse VoltageRating Rating(kV) 50 kVar 100 kVar 150 kVar 200 kVar 300 kVar2400 5.5 34 56 – – –2770 5.5 27 56 – – –4160 5.5 21 34 49 65 –4800 5.5 21 34 49 56 –6640 8.3 11 21 33 47 –7200 8.3 11 21 33 39 –7620 8.3 11 21 33 39 –7960 8.3 11 17 26 39 –8320 15.5 9 16 26 32 –9960 15.5 9 14 21 32 –

12470 15.5 9 12 16 26 3213280 15.5 – 12 16 21 3213800 15.5 – 12 16 21 3214400 15.5 – 9 14 21 3219920 23.0 – – – 21 2121600 23.0 – – – 21 21

Technical DataMaximum Design 2.8 5.5 8.3 15.5 23.0Voltage (kV)

Maximum Parallel 85 77 75 88 50Capacitor Discharge Energy Rating(Kilo-Joules) 5 kHz

Maximum 60 Hz 40 40 60 90 60Inductive CurrentInterrupting (kA RMS Sym.)

Maximum Peak 9 17 26 48 72Recovery Voltage(kV)

TABLE 2 (Select Fuse Style Number)STYLE NUMBER INCLUDES FUSE LINK

Maximum Continuous NEMA Type CILFuse Design Current Type K With

Voltage Rating Fuse Link Mounting(kV) (Amps) (Amp)* Hardware

(40°C) (55° C)

5.5 6.05 21 18 15 279C420A085.5 6.05 27 23 20 279C420A095.5 6.05 34 29 25 279C420A105.5 6.05 40 34 30 279C420A115.5 6.05 49 42 40 279C420A125.5 6.05 56 48 50 279C420A135.5 6.05 65 55 65 279C420A14

8.3 9.13 11 9 8 279C420A168.3 9.13 14 12 10 279C420A178.3 9.13 17 14 12 279C420A188.3 9.13 21 18 15 279C420A198.3 9.13 26 22 20 279C420A208.3 9.13 33 28 25 279C420A218.3 9.13 39 33 30 279C420A228.3 9.13 47 40 40 279C420A23

15.5 17.05 9 8 6 279C420A2615.5 17.05 12 10 8 279C420A2715.5 17.05 14 12 10 279C420A2815.5 17.05 16 14 12 279C420A2915.5 17.05 21 18 15 279C420A3015.5 17.05 26 22 20 279C420A3115.5 17.05 32 27 25 279C420A32

23.0 25.3 21 18 15 279C420A40

*Fuse links are rated based on their melting characteristics. They can carryapproximately 150% of their rating continuously.

** Ref: IEEE C37.40

**Rated MaximumVoltage

Type CIL - (Indoor) Current Limiting Capacitor Fuses

Mounting & Ejector Spring

10

A

B

(Lbs.)A B Weight

5.5kV 14.00 7.75 3.5

8.3kV 14.00 7.75 3.5

15.5kV 16.25 10.00 4.2

23.0kV 18.375 12.125 4.5

TD 38-852

The CIL fuse must be used with style number 898A431H02 ejector spring (fuse indicator). tioned such that the opening points to the capacitor unit.

CAPACITOR FUSES

Indoor InstallationType CIL Fuse /Capacitor Upright

Indoor InstallationType CIL Fuse /Capacitor Edgemount