What is BS EN 60143-2 - Series capacitors used for power systems about?
BS EN 60143-2 is the second part of an international standard used for Series capacitors for power systems. BS EN 60143-2 specifies the quality equipment and test methods which results in manufacturing good quality capacitors.
BS EN 60143-2 covers protective equipment for series capacitor banks, with a size larger than 10 Mvar per phase. Protective equipment is defined as the main circuit apparatus and ancillary equipment, which are part of a series capacitor installation, but which are external to the capacitor part itself. The recommendations for the capacitor part are given in IEC 60143-1:2004. The protective equipment is mentioned in Clause 3 and 10.6 of IEC 60143-1:2004.
Note: BS EN 60143-2 covers:
- Principles involved in the application and operation of series capacitors are given in Clause 5
- Examples of fault scenarios are given in Clause 5
- Examples of protective schemes utilizing different overvoltage protectors are given in 4.1
Who is BS EN 60143-2 - Series capacitors used for power systems for?
BS EN 60143-2 on series capacitors for power systems is useful for:
- Manufacturer of electronic equipment
- Manufacturer of automotive parts
- Manufacturer of the circuit board
- Manufacturer of capacitors
- Electronic engineer
Why should you use BS EN 60143-2 - Series capacitors used for power systems?
The capacitors are an electromechanical device that helps in storing electrical energy in an electric field.
BS EN 60143-2 can be your best guide in conducting the test method for series capacitors. The test method and test equipment are as follows:
- Overvoltage protector is useful in controlling the instantaneous voltage across the series capacitor
- Protective spark gap helps in protecting the capacitors against over voltages
- Varistor is useful in limiting the transient overvoltage across the capacitor by conducting the excess transmission line current. This is useful in designing the varistor in such a way that the maximum energy is exposed during the defined fault situation in the network
- Bypass switch helps in withstanding the inrush current from frequent capacitor discharges from the rated voltage (crest value) and rare discharges
- Bypass disconnector is useful in providing bypassed series capacitor bank bypass switches
- The voltage transformers are connected to high and low voltage capacitors which are useful in measuring phase to earth voltage
- Current transformer helps in identifying the faults or defects that take place in capacitors
- Signal column is useful in transforming signals from one place to another place.
- Fibre optic platform provides a path for transmission of optical signals between the current sensors located at different locations on the platform
- Relay protection is useful in protecting the event of faults such as capacitor unbalance, sustained gap arcing, flashover to the platform
By applying BS EN 60143-2, you can ensure the sustainability and capacity of these capacitors which are used for power supply. This helps in manufacturing good quality series capacitors used in supplying power from one place to another.
What’s changed since the last update?
BS EN 60143-2:2013 supersedes BS EN 60143-2:1995. BS EN 60143-2:2013 includes some technical changes with respect to BS EN 60143-2:1995. These include:
- Updated with respect to new and revised component standards
- Updates with respect to technology changes. Outdated technologies have been removed, i.e., series capacitors with dual self-triggered gaps. New technologies have been added, i.e., current sensors instead of current transformers
- The testing of spark gaps has been updated to more clearly specify requirements and testing procedures. A new bypass making current test replaces the old discharge current test
- Clause 5, Guide, has been expanded with more information about different damping circuits and series capacitor protections
