ZW17-40.5 Series Outdoor High-volt Vacuum Circuit Breaker Specifications
1 Overview
ZW17-40.5 series Outdoor High-volt Vacuum Circuit Breaker, a three-phase AC 50Hz outdoor high-volt switchgear, is applicable for the 40.5 KV power distribution and transmission system to close or open the load current, over-load current, short-circuit current and so on.
2 Service and Installation Conditions
Ambient Temperature
From -30 to 40 (from -40 to +40 for the particular order).
Height Above Sea Level
≤ 1000m (value over 1000m should be indicated in advance.)
Air Humidity
Relative humidity: ≤ 95% daily at average; ≤ 90% monthly at average.
Wind Pressure
≤ 700Mpa.
Sunshine Intensity
0.1 W/cm under the 0/5m/s wind velocity.
Max Daily Temperature Difference
25
Earthquake Intensity
≤ 8 degree.
Pollution Class
Class.
Installation Environment Requirement: Far away from the place with the danger of explosion, collision, chemical corrosion, violent vibration.
Frequently Asked Questions
Q1: What is the primary application of the ZW17-40.5 Series Vacuum Circuit Breaker?
A1: The ZW17-40.5 series outdoor high-volt vacuum circuit breaker is a three-phase AC 50Hz outdoor high-volt switchgear designed for 40.5 KV power distribution and transmission systems to close or open load current, over-load current, and short-circuit current.
Q2: What is the operating ambient temperature range for this circuit breaker?
A2: The standard ambient temperature range for operation is from -30 to 40. For particular orders, a special temperature range from -40 to +40 is available.
Q3: What are the installation requirements regarding altitude and earthquake intensity?
A3: The standard installation height above sea level is ≤ 1000m (values over 1000m must be indicated in advance). The equipment is built to withstand earthquake intensities up to ≤ 8 degrees.
Q4: What are the maximum air humidity and wind pressure limits?
A4: The daily relative humidity average should be ≤ 95% and the monthly average should be ≤ 90%. The allowed wind pressure is ≤ 700Mpa.
Q5: Are there any specific environment restrictions for installing this switchgear?
A5: Yes, the installation site must be situated far away from locations with potential dangers of explosion, collision, chemical corrosion, or violent vibration.
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