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GE BA300 Commissioning Instructions

Battery alarm for use with substation and telecontrol batteries


Grid Solutions
Battery Alarm
Commissioning Instructions
For use with Substation and Telecontrol Batteries
Publication reference: BA300/EN/CI/GE


Table of Contents

Summary of Contents for GE BA300

  • Page 1 Grid Solutions BA300 Battery Alarm Commissioning Instructions For use with Substation and Telecontrol Batteries Publication reference: BA300/EN/CI/GE...
  • Page 3: Handling Of Electronic Equipment

    Commissioning Instructions Battery Alarm 300 for use with Substation and Telecontrol Batteries HANDLING OF ELECTRONIC EQUIPMENT A person's normal movements can easily generate electrostatic potentials of several thousand volts. Discharge of these voltages into semiconductor devices when handling electronic circuits can cause serious damage, which often may not be immediately apparent but the reliability of the circuit will have been reduced.
  • Page 4: Safety Section

    SAFETY SECTION This Safety Section should be read before commencing any work on the equipment. Health and safety The information in the Safety Section of this manual is intended to ensure that products are properly installed and handled in order to maintain them in a safe condition.
  • Page 5: Technical Specifications

    Before energising the equipment, the following should be checked: Voltage rating and polarity; Protective fuse rating; Integrity of earth connection Equipment operating conditions The equipment should be operated within the specified electrical and environmental limits. Insulation and dielectric strength testing Insulation testing may leave capacitors charged up to a hazardous voltage.
  • Page 6 Applications For situations where batteries are located in unmanned substations it is important that the security of the supply is maintained. This means, not only that the battery voltage is within required limits, but that Earth Leakage is minimised and any latent faults in the battery and its connections will not result in failure to initiate tripping when a heavy current is demanded.
  • Page 7: Power Supply

    1. Power Supply Set the power supply voltage mid way between the two voltage trip settings. Check the current indicated on the milliammeter (3) is approximately 20mA. NB: Replace the milliammeter (3) with a link for the following tests. 2. Over Voltage Trip Slowly increase the voltage until the over voltage alarm LED lights.
  • Page 8: Application Note

    E(GND) Figure 2: Connection diagram for Battery Alarm test sequence 1. Variable dc power supply, 0–1A output. Output impedance less than 0.2Ω 2. Capacitor 220µF, 400V (required if power supply output impedance is greater than 0.2Ω) 3. Low impedance milliammeter, to indicate 20mA dc 4.
  • Page 9: Operation

    For battery charger systems with capacitor filtered outputs, the Battery Alarm requires a choke of ≥2mH to be fitted at the output of the battery charger to ensure correct operation of the high impedance alarm (see Figure 1). In normal operation, the non-urgent (earth fault or high volts cut-off) relay is de-energised and the urgent relay is energised, thus providing a ‘fail to safety’...
  • Page 10 Technical Specifications Battery Voltage Ranges Battery voltages (VB) 24V, 30V, 32V, 48V, 50V, 60V, 110V, 125V, 220V. Operating Range 80…140%VB Burden 20mA nominal Voltage alarm levels (adjustable) Under voltage range 80…110%VB Over voltage range 105…140%VB ±0.5% Accuracy of setting Hysteresis on setting 0.5% Earth leakage protection (preset) Trip level range...
  • Page 11 Electromagnetic Compatibility Directive 89/336/EEC Emissions standard EN 50081-2 1994 Industrial environment Immunity standard EN 50082-2 1995 Industrial environment (IEC 60801 parts 2, 3 and 4) Susceptibility to Electrostatic Discharge 8kV air discharge/4kV contact. Warning: This specification applies when the front cover is fitted. If the front cover is removed to gain access to the adjustment potentiometers then appropriate ESD protection must be taken.
  • Page 12 No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited. BA300/EN/CI/GE...

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