Handbook for Selection of Common Power Supply and Distribution Equipment Third Volume: High Voltage Apparatus

Author: Editor-in-Chief: Wang Zipu
Publisher:
Publish Date: 2000-04-01
Features: Segment: 16, 10kV Outdoor High-Voltage Disconnector 1.1GW1－6、10，6、10W/200、400、600 Type Outdoor High-Voltage Disconnector 1.1.1 Purpose GW1－6、10，6、10W/200、400、600 Type Indoor High-Voltage Disconnector is suitable for AC 50Hz, rated working voltage of 6、10kV, rated working current of 200、400、600A power systems, used as outdoor switch equipment for disconnecting and connecting power under no-load voltage conditions. 1.1.2 Model Meaning 1.1.3 Structural Features Overview The disconnector consists of three identical single-pole disconnectors. During installation, they are connected as a whole by tube linkages and are equipped with CS8－1 type manual operating mechanism. Each single-pole disconnector has a separate iron frame with two pillar insulators installed at both ends, each equipped with a contact. A rotating shaft is located in the middle of the iron frame, and the knife switch is actuated for opening and closing by means of rod insulators. The structure of the GW1－10W type outdoor single-pole anti-pollution high-voltage disconnector is the same as that of the GW1－10 disconnector, with the only difference being the replacement of porcelain insulators with large and small umbrella-shaped structures, which not only prevents pollution but also increases the wet arc-over voltage. 1.1.4 Applicable Working Conditions (1) Ambient temperature: -40℃ to 40℃. (2) Altitude not exceeding 1000m. (3) Wind speed not exceeding 35m/s, seismic intensity not exceeding 8 degrees. (4) No risk of combustion or explosion, no severe vibration or impact, no presence of chemicals that severely corrode metal and insulating materials. (5) Pollution-proof switches can be used in humid, foggy, polluted, and thunder-prone environments. 1.1.5 Main Technical Features Main technical features are shown in Table 1.1.11.1.6 Ordering Instructions When ordering, the product model, rated working voltage, rated working current, rated short-time withstand current, and model of the operating mechanism to be used should be provided.