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YUASA

VALVE REGULATED

LEAD ACID BATTERY

M A N U A L

YUASA

Содержание NP Series

Страница 1: ...YUASA NP VALVE REGULATED LEAD ACID BATTERY M A N U A L YUASA...

Страница 2: ...unacceptable level This low pressure venting system coupled with the significantly high recombination efficiency make Yuasa NP batteries one of the safest valve regulated lead acid batteries available...

Страница 3: ...overy Capability Yuasa NP batteries have excellent charge acceptance and recovery capability even after very deep discharge Quality Assurance Our U K manufacturing plant now has Quality Assurance Stan...

Страница 4: ...6 NP10 6 NP12 6 NPL130 6 NP0 8 12 NP1 2 12 NP2 12 NP2 1 12 NPH2 12FR NP2 3 12 NP2 8 12 NP3 2 12 NPH3 2 12 NP4 12 NPH5 12 NP7 12 NP12 12 NP17 12 NPH16 12 NP24 12 NP38 12 NP65 12 NPL78 12 NPL100 12 Nomi...

Страница 5: ...Table 2 LAYOUT 4 Table3 TERMINALS...

Страница 6: ...aracteristics The curves shown in Figure 3 and the discharge current rates shown in Table 4 illustrate the typical discharge characteristics of Yuasa NP batteries at an ambient temperature of 25 The s...

Страница 7: ...32A 0 40 0 48 0 84 0 80 0 92 1 12 1 20 1 60 2 40 2 80 3 20 4 00 4 80 6 80 9 60 15 20 26 00 31 20 52 00 0 2C 0 16A 0 20 0 24 0 42 0 40 0 46 0 56 0 60 0 80 1 20 1 40 1 60 2 00 2 40 3 40 4 80 7 60 13 00...

Страница 8: ...272V down to end of discharge 204V at 25 C 1 Recommended float voltage for NP batteries at 25 C is 2 26volts per cell To find the number of series cells required divide the maximum load voltage by 2...

Страница 9: ...rally recognised that all lead calcium alloy grid batteries are subject to over discharge damage For example if a lead acid battery were discharged to zero volts and left standing in either on or off...

Страница 10: ...tery decreases Figure 4 shows the effects of different temperatures in relation to battery capacity Self Discharge The self discharge rate of NP batteries is approximately 3 per month when stored at a...

Страница 11: ...ranges recommended will have no adverse effect on storage time or service life However should the higher ambient temperature persist for one month or more the storage time must be determined by referr...

Страница 12: ...Figure 6 shows extrapolated Service Life condition for NP batteries at different ambient temperatures As can 11 be seen from figure 6 higher ambient temperatures will reduce service life...

Страница 13: ...ring to Figure 7 The internal resistance impedance of a battery is lowest when the battery is in a fully charged state The internal resistance increases gradually during discharge Figure 8 shows the i...

Страница 14: ...rging is one of the most important factors to consider when using valve regulated lead acid batteries Battery performance and service life will be directly affected by the efficiency of the charger se...

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Страница 18: ...acity between batteries in a series group Extreme care is required when charging NP batteries with a constant current If after the battery has reached a fully charged state the charge is continued at...

Страница 19: ...batteries that are subject to cyclic use When using a taper charger it is recommended that the charging time is either limited or that a charging cut off circuit be incorporated to prevent overcharge...

Страница 20: ...where the value of this decreasing current is sensed causing the circuit to switch into the second stage B C reducing the charging voltage from 2 45 volts per cell to a constant voltage float standby...

Страница 21: ...ations and the other for cyclic applications When interfaced with the appropriate AC or DC power supply the Yuasa C V C C guarantees safe charging and maximum battery life Figure 23 is a block diagram...

Страница 22: ...the solar panels Under these circumstances the maximum output of the solar array should be dedicated to charging the battery with no load sharing or intervening control devices of any kind Naturally i...

Страница 23: ...urs the electrical energy stored and available for discharge will be 90 or more of the energy applied during charging Charging voltage should be regulated in relation to the ambient temperature When t...

Страница 24: ...rent Limit A discharged battery will accept a high charging current at the initial stage of charging High charging current can cause abnormal internal heating which may damage the battery Therefore wh...

Страница 25: ...urrent accepted by an over discharged NP battery during the initial stage of charging will be quite small but will increase rapidly over approximately the first 30 minutes until the internal resistanc...

Страница 26: ...ensation is 20 C Figure 29 shows the relationship between temperatures and charging voltages in both cyclic and float standby applications In practice where there are short term temperature fluctuatio...

Страница 27: ...Figure 31 Yuasa NP batteries exhibit very high charging efficiency even at low charging rates unlike some nickel cadmium batteries Cyclic Service Life There are a number of factors that will affect t...

Страница 28: ...tively not lost due to the drying up of the electrolyte the loss of capacity and eventual end of service life is brought about by the gradual corrosion of the electrodes It should be noted that this c...

Страница 29: ...2 or more battery groups are to be used connected in parallel they must be connected to the load through lengths of wires cables or busbars that have the same loop line resistance as each other This m...

Страница 30: ...e electrolyte the positive and negative plates separators etc 16 Life Expectancy Expected service life of a battery expressed in total cycles or time in float service in relation to a specified applic...

Страница 31: ...ntrolled 13 Age 24 Cool 10 Ages 28 Cooling 28 Air 1 28 Corrosion 27 Alarm 2 28 Corrosive 27 Allow 28 Cycles 1 27 29 Alloy 8 Cyclic 1 5 18 20 22 25 27 28 29 Ambient 2 5 9 10 11 22 25 27 28 Ampere 5 29...

Страница 32: ...28 29 Nickel 26 Floating 11 Non Spillable 1 Gas 1 29 Oils 28 Gases 27 28 Organic 28 Gels 1 Orientation 1 Generate 28 Overcharge 17 18 19 25 Generated 1 27 29 Overcharging 21 Gloves 28 Over Discharge 8...

Страница 33: ...et 19 23 25 Setting 28 Severe 8 17 Shelf 2 9 10 29 Shock 28 Short 19 20 23 25 Shorten 18 Silica 1 Skin 28 Soaked 28 Solar 2 21 Soldering 28 Solvents 28 Sparks 28 Stage 13 19 22 23 24 29 Stages 24 Stan...

Страница 34: ...ecovery of Sulphated Batteries Effects of Altitude on Valve Regulated Lead Acid V R L A Batteries Ventilation Environmental Requirements of NP and UXL Batteries on Float Standby Environmental Safety o...

Страница 35: ...bbw Vale Gwent NP23 5SD T Sales 08708 500 312 Tech 08708 500 314 F 08708 500 317 E enquiries yuasa sales co uk W www yuasa battery co uk Yuasa Battery Europe GMBH Wanheimer Str 47 D 40472 D sseldorf G...

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