Motor powered cable reels
24Pages

MOTOR POWERED CABLE REELS

Slip ring bodies Cable reels with motor drives are used as a power supply for mobile VAHLE slip ring bodies are available in the following versions: consumers for automated winding of flexible power or control cables for • Low voltage: Voltages ranging between 230 V and 500 V the following areas: • All forms of portal and swivel cranes Amperages of 10 A to 1000 A • Medium voltage: Voltages ranging between 10 kV and 20 kV • Container bridges • Stacking cranes • Gantry cranes Higher voltages available upon request. The housing for the slip ring bod- • Construction cranes ies are encapsulated...

GENERAL Drives Surface protection We offer the following drives: The reel body comes standard in a galvanized version. The slip ring body • Three-phase motor with magnetic coupling housing and the drive unit have a primer and cover coating in RAL 7040. • Three-phase motor with frequency converter Other versions (e. g. hot-dip galvanized or stainless steel reel bodies) are – with constant torque – with adjustable torque • Three-phase motor with integrated frequency converter Operating manual – with constant torque Instructions for assembly and commissioning are included in every de- – with...

CALCULATIONS Calculating the necessary cable cross section 1. Determination of ampacity and cable cross section 2. Control of voltage drop 3. Selection of cables 1. Determination of ampacity and cable cross section The nominal current (IN) of the individual motors are summarized with a reduction factor (fED, fT, f1, f2) to an equivalent continuous current (ID). The 2. Check of voltage drop Rough calculation for determining the voltage drop ∆U: ∆U = √3 · L · IA following calculation shall also be performed repeatedly if necessary. ID = IA: Calculation of start-up current The order of the...

REEL INSTALLATION EXAMPLES Reel on moving equipment Cable tray on the ground or on a continuous tray Cable payout horizontally in one or two directions Reel on moving equipment Cable storage on supports (l1 = 1 m), or on rolls or round smooth supports (l1 = 1 to 3 m) Horizontal cable payout in one or two directions Reel stationary (Cable fixpoint at moving equipment), horizontal cable payout in one or two directions on rolls or smooth supports (l1 = 3 m) Reel on moving equipment (6) Or reel stationary (7) (cable fix point at moving equipment) Free horinzontal cable payout in one or two...

DETERMINING THE CABLE CROSS SECTION Table 1: Continuous ampacity of cables NSH ... and NTS ... for straight, open air installation. Max. possible operating temperature of the condurctor 90 °C. Nominal cross section [mm2] Ambient temperature 30 °C Continuous amp. [A] Factors for intermittent duty with ED 60 % Table 2: Multiplier for ambient temperature Ambient temperature [°C] Table 3: Multiplier for multilayer coiling Number of complete layers LZ on the reel Table 4: Multiplier for multilayer coiling up to 10 mm2 Number of conductors Also applies to spiral coil

Table 5: Minimum bending radius Cable type Flexible cables Cross section of cables or thickness of the flat cables over 8 to 12 Nominal voltage of over 0.6/1 kV If cable types can be used for several applications contact the manufacturer.(2) Fixed installation Free movement Guide roller The smallest permissible bending radius is 6 x d for PUR-HF cables or cable guide to another level must be at least 20 times the cable diameter. Subject to technical advancement. with reeling operation The suitability for this operating mode needs to be assured through special structural characteristics....

TYPE DESIGNATION Motor cable reels with magnetic coupling drive Cable reels with magnetic coupling drive Random winding (inner diameter of the reel in millimetres) Spiral winding (inner diameter/exterior diameter in decimetres) S = Low voltage with vertical payout N = Low voltage with horizontal payout H = Medium voltage Number of poles for slip ring body M = Brass slip ring K = Copper slip ring Slip ring rating in amps (100 % ED) Gear sizes: B evel – helical gear unit 1 = R1 Flat spur gear = 95 + 96 Bevel – helical gear unit = 48 − 168 Magnetic coupling sizes

TYPE DESIGNATION Motor cable reels with frequency converter drive LT Cable reels with frequency converter drive Random winding (inner diameter of the reel in millimetres) Spiral winding (inner diameter/exterior diameter in decimetres) S = Low voltage with vertical payout N = Low voltage with horizontal payout H = Medium voltage Number of poles for slip ring body M = Brass slip ring K = Copper slip ring Slip ring rating in ampere (100 % ED) Gear sizes FMK = Frequency converter with constant torque installed directly to the motor (always from Getriebebau Nord) FMP = Frequency converter with...

CABLE GUIDES Guide roller assemblies For voltages up to 1000 volt and payout in two directions For voltages exceeding 1000 volt: r min. = 15 x cable cross section B Guide roller without pendulum Type Guide roller with tension control Order No. with position switch Order No. without position switch

SHEAVE GUIDE Sheave guide SU The SU sheave guide is used for spiral winding reels. It serves to deflect the cable of the cable reel located above and to bypass the feed point. Sheave guide SU-R The SU-R sheave guide with additional top guide roller is used in cross rollers for cylindrical winding reels. It serves to deflect the cable of the cable reel located above and to bypass the feedpoint funnel. The installation height of the drum to the guide needs to provide for a maximum diagonal pull of 3° to allows a smooth winding of the cables.

DEFLECTION AND GUIDING ROLLERS d Deflection and guide rollers are used if the cable payout cannot be made directly from the reel. The roller cross section needs to be at least 15 times the cable cross section.

FEED POINT FUNNEL For voltages up to 1000 volt and cable payout in two directions for medi- um travel speed and frequent traveling of midpoint.