Product description
A cell-based industrial battery system using nickel-cadmium electrochemistry for long service life, wide temperature ranges and demanding duty profiles.
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Nickel-cadmium batteries are sized to the duty profile in stationary and mobile applications where high reliability, deep-discharge resilience and demanding environmental conditions take priority.
Ni-Cd PRODUCT SERIES
ALCAD and SAFT solutions for the application.
Explore ALCAD series for industrial standby power in fixed installations and SAFT series for railway duties.
PRODUCT AND TECHNOLOGY
Role in the system and operating principle
Operating principle
Positive and negative electrodes store and release energy through ion exchange in the electrolyte. Cell selection depends on discharge current, duration and end voltage as well as Ah capacity.
Maintenance and lifecycle
Electrolyte levels, connections, cell voltages, temperature and capacity trends are recorded. Maintenance intervals depend on product type and operating conditions.
APPLICATIONS
Engineering for the duty profile.
- Substations
- Railways and metro
- Oil and gas
- Emergency diesel starting
- Industrial control
TYPICAL OPTIONS
Technical framework confirmed in the quotation
Values and options are for initial selection. Final values are determined after the selected product, manufacturer data, specification and site conditions have been verified.
ParameterTypical optionSelection basis
Cell countAccording to system voltageAccording to minimum/maximum load voltage
CapacityAhAccording to the duty profile
Discharge durationSeconds to hoursAccording to load steps
TemperatureDesign rangeAccording to site conditions
Charging regimeFloat / boost chargingAccording to manufacturer data
SYSTEM ARCHITECTURE
Topology, protection and control
Topology and redundancy
- Single or parallel battery strings
- Separate or shared charging system
- Rack, cabinet or custom installation
- Central water-filling and monitoring options
Protection features
- String fuse or DC breaker
- Polarity and short-circuit safety
- Ventilation and access measures
- Temperature and cell-voltage monitoring option
Control and communication
- Coordination of float/boost charging with the charger
- String and cell-voltage monitoring
- Electrolyte-level maintenance tracking
- SCADA alarm reporting option
Options
- Central water-filling system
- Cell monitoring
- Seismic rack
- Battery breaker and distribution
- Maintenance accessories
COMPARISON
Compare battery technologies by application
TechnologyPrincipal application strengthCritical selection checks
Ni-CdDemanding temperatures, long service and high reliabilityDuty profile, end voltage and manufacturer discharge tables
Lead-acidEstablished UPS/DC infrastructure and a range of cost optionsTemperature, autonomy, discharge power and expected life
Li-ionHigh energy density, cycling and advanced BMSChemistry, BMS/UPS compatibility, thermal and fire-safety approach
Na-ionEmerging stationary storage and pilot applicationsActual product data, references, maturity and supply assurance
PROJECT INPUTS
Information for the right selection
Unknown values can be clarified through site inspection and engineering before quotation.
- 01
Time-stepped load profile
- 02
Minimum/maximum system voltage limits
- 03
Autonomy, end voltage and temperature
- 04
Expected service and maintenance conditions
- 05
Rack, room, ventilation and seismic requirements
TECHNICAL QUESTIONS
Frequently asked questions
Is capacity selected using Ah alone?
No. The duration of each load step, end voltage and temperature affect capacity.
Is maintenance required?
Inspection intervals depend on technology and product type. Visual checks, connection checks and electrical measurements should be planned.