ANSI TR Series High Voltage Outdoor Station Post Ceramic Insulator

Short Description:

Hot sale High Voltage Outdoor Station Post Ceramic Insulator ANSI TR series
Types of tr series glazed station post ceramic insulator
TR-202/TR-205/TR-208/TR-210/TR-214/TR-216/TR-222/TR-225/TR-227/TR-231/TR-267/TR-278

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Product Detail

Product Tags

Performance

In power system, post insulator is widely used in bus and disconnector. During long-term operation, mechanical, thermal

Due to the comprehensive action of many factors such as electricity and environment, various physical and chemical changes will inevitably occur in insulator porcelain, resulting in electricity

The gas performance and mechanical strength decrease gradually with the increase of operation time.

The operation overvoltage is internal overvoltage, so the influence of tower height is not considered, while the lightning overvoltage is external overvoltage, and the tower height is considered. In addition, the overvoltage waveform of the operating overvoltage is closer to that of the power frequency voltage. Therefore, the zero value insulator will affect its discharge characteristics. Therefore, when calculating the tension insulator under the operating overvoltage, it is considered to add a certain number of zero value insulators more than the suspension string.

Product Design Drawings

TR-216

Product Technical Parameters

TR Series Ceramic Porcelain Station Post Insulator for Transmission
ANSI Class		TR205	TR208	TR210	TR214	TR216
Dimensions
Diameter	mm	178	178	191	203	232
Height	mm	254	356	457	559	762
Creepage distance	mm	394	610	940	1092	1892
Mechanical Values
Torsion Strength	kn	38	44.5	53	62	71
Compression Strength	kn	44.5	44.5	66.7	66.7	111
Cantilever Strength	kn	8.9	8.9	8.9	8.9	6.7
Electrical Values
power frequency dry withstand voltage	kv	85	110	145	170	235
power frequency wet withstand voltage	kv	55	75	100	125	180
Critical impulse flashover voltage,positive	kv	125	170	225	280	390
Critical impulse flashover voltage,negative	kv	200	250	290	340	475
Impulse Withstand voltage	kv	110	150	200	250	300
Power frequency dry flashover voltage	kv	55	75	100	125	180
Power frequency wet flashover voltage	kv	40	60	80	100	145
Radio influence Voltage Data
Impulse Withstand Voltage	kv	110	150	200	250	350
Packing and Shipping Data
Net weight,approximate	kg	7	11	16	21	30