TOP
Power electronics and communications company, Measuring monitor, Control and Communication products
General
When installed on low-voltage wire of transformer, TOA can prevent possible damages from overload caused by seasonal or drastic change in electricity load with a visual and audio alarm system.
Features
• Changeable settings to match the capacity of transformer using 22.9kV electric distribution line
• Visual and audio alarm
• Automatic return method
• Self charging with electrical power induced by electric current load; no need to use extra power source
• Designed for convenient use
Specification
• Operational temperature range : -25~50℃
• Acceptable error range : less than ±5% of the load value calculated using each transformer capacity(10, 15, 20, 30, 50, 75, and 100kVA) and secondary circuit voltage(110V, 220V) value
• Provided with more than 1 dry contact (one contact point)
• Indicates load status based on the corrected electric current value
• At or above 80% of transformer load for over 5 minutes, green light turns on.
• At or above 80% of transformer load for over 5 minutes, red light turns on and the buzzer sounds.
• Sound-level of signal: approx. 85±5dB (simple sound or complex sound with multi-tone)