BS 2G 196:1971

Foreword
1 General
1.1 Scope
1.2 Definitions
1.3 General construction
1.4 Preferred ratings
1.5 Supply characteristics
1.6 Output voltage and frequency
1.7 Efficiency
1.8 Regulation response and stability
1.9 Voltage balance
1.10 Waveform of output voltage
1.11 Modulation of output voltage
1.12 Control of voltage and frequency
1.12.1 Voltage
1.12.2 Frequency
1.13 Adjustment of voltage
1.14 Phase sequence
1.15 Protection
1.15.1 Voltage and frequency
1.15.2 Overload conditions
1.15.3 Short-circuit capacity
1.15.4 Automatic shut down
1.15.5 Reversed input polarity
1.15.6 Input voltage
1.16 Vibration, acceleration and climatic proofness
2 Particular requirements
2.1 Arrangement and construction
2.2 Terminal identification
2.3 Components
2.4 Radio interference
2.5 Compass interference
2.6 Starting
2.7 Cooling
2.8 Declarations
2.9 Marking
2.10 Warning notices
3 Tests
3.1 General
3.2 Test conditions
3.3 Type tests
3.3.1 Starting
3.3.1.1 Normal
3.3.1.2 Reversed input polarity
3.3.2 Voltage and frequency regulation
3.3.3 Transient response
3.3.4 Wave form
3.3.5 Protection
3.3.5.1 Transient voltage and input voltage
3.3.5.2 Output overvoltage
3.3.5.3 Output frequency
3.3.6 Voltage modulation
3.3.7 Efficiency
3.3.8 Input current
3.3.8.1 Maximum current demand
3.3.8.2 Ripple current
3.3.9 Overload voltage
3.3.10 Short-circuit capacity
3.3.11 Insulation resistance
3.3.12 Environmental tests
3.3.13 Cooling test
3.3.14 Temperature and pressure
3.3.15 Fungus growth
3.3.16 Leakage (hermetically sealed equipment)
3.3.17 Waterproofness
3.3.18 Vibration
3.3.19 Acceleration
3.3.20 Explosion proofness
3.3.21 Radio interference
3.3.22 Compass safe distance
3.3.23 Salt corrosion
3.3.24 Dust and sand
3.3.25 Contamination
3.4 Production acceptance tests
3.4.1 Voltage (and frequency) regulation
3.4.2 Reversed input polarity
3.4.3 Transient response
3.4.4 Waveform
3.4.5 Transient voltage and input voltage protection
3.4.6 Output frequency protection
3.4.7 Maximum current demand
3.4.8 Insulation resistance
3.4.9 Phase sequence (three phase invertors only)
3.4.10 Voltage balance (three phase invertors only)
3.4.11 Endurance
3.5 Production quality tests
3.5.1 Sampling
3.5.2 Production quality tests
3.5.2.1 Short-circuit capacity
3.5.2.2 Waveform analysis
3.5.2.3 Temperature and pressure
3.5.2.4 Vibration
3.5.2.5 Further tests
Appendices
A Salt corrosion test
B Dust and sand test
Tables
1 Voltage balance loads
2 Load configurations
3 Non-sinusoidal loads
Figure
1 Measuring device for dust and sand test

Gives the general design and test requirements for 400 Hz static invertors for aircraft. Includes salt corrosion test, dust and sand test, and illustrates measuring device for dust and sand test.

This British Standard states the general design and test requirements for 400 Hz static invertors for aircraft.