ANSI SolidCore Post Insulators

Welcome to WINWIN Speciality Insulators (WSI), India’s premier ceramic insulator manufacturer. Our commitment to excellence drives us to produce a wide range of high voltage insulators tailored for Power Generation, Substation, Transmission, and distribution systems. And now, WSI is embarking on a new venture to develop Lab Ceramic Utilities designed for diverse laboratory applications.

Our Lab Ceramic Utilities are constructed using high-strength alumina bodies in accordance with IEC 60672 standards. At WSI, we pride ourselves on our cutting-edge equipment for both manufacturing and testing, ensuring the highest quality for our products. Our team comprises skilled experts in Ceramic Lab, Design, and Manufacturing processes, and our seasoned sales professionals stand ready to provide unparalleled customer support at all times.

Our Diverse Applications

WS ANSI Solidcore Post Insulators boast an extensive Basic Impulse Level (BIL) range,
spanning from 95 kV (peak) to an impressive 2050 kV (peak). These insulators are engineered to meet the most demanding BIL requirements, ensuring robust performance in even the highest BIL applications.

Unmatched Material Quality

WS ANSI Solidcore Post Insulators are crafted using high-strength alumina porcelain, ensuring the utmost durability and reliability. This choice of material underlines our dedication to delivering products that not only meet but exceed expectations, making them ideal for the most demanding electrical applications.

Diameter Strength

In addition to height flexibility, our WS ANSI Solidcore Post Insulators”boast core diameters of up to 210mm. This robust design allows our solutions to confidently handle substantial mechanical loads, ensuring the reliability and durability of your electrical systems.

Height and Diameter Flexibility for Your Unique Needs

At WSI, we understand that each project in the electrical industry has its own set of demands. That's why we are dedicated to offering flexible solutions when it comes to our WS ANSI Solidcore Post Insulators”.

Height Versatility

WSI commitment to adaptability is exemplified by our range of WSI ANSI Solidcore Post Insulators” with height starting from 7.5 inches (191mm) to 185 inches (4699mm), WSI single-part insulators extend up to 62 inches (1575mm) in height. For insulators greater than 62 inches, we offer multiple-part configurations, ensuring that WS products seamlessly seamlessly integrate with the unique demands of your projects, providing you with the versatility you need.

Versatile Range for Varied Applications

Our extensive product portfolio caters to a wide spectrum of applications, including power plants, substations, and distribution networks for supporting bus bars and conductors, isolator applications, switchgear products, pantograph applications, and capacitor bank support etc.,WS ANSI Solidcore Post Insulators are engineered to excel in diverse scenarios.

Stringent Quality Assurance

Quality is WSI top priority. Each and every insulator produced at WSI factory undergoes thorough inspection, adhering to ANSI C29.9 and ANSI C29.1 standards. We also strictly follow the customer specification. This commitment to quality control guarantees that WS products meet the highest meet the highest industry benchmarks, ensuring safety and reliability in every application.

WS ANSI Solidcore Post Insulators Range

ANSI Reference Number Units TR 202 TR 205 TR 208 TR 210 TR 214 TR 216
Cantilever Strength (upright) lbs 2000 2000 2000 2000 2000 1500
Total Height (H) inch (mm) 7.5 (191) 10 (254) 14 (356) 18 (459) 22 (559) 30 (762)
Max. Diameter of Insulating Part (D) inch (mm) 7 (178) 7 (178) 7 (178) 7.5 (191) 8 (203) 9 (230)
Top Metal Part Diameter inch (mm) 4.3 (108) 5 (127) 5.3 (135) 5.9 (150) 5.25 (134) 6.2 (158)
Bottom Metal Part Diameter inch (mm) 4.3 (108) 5 (127) 5.3 (135) 5.9 (150) 5.25 (134) 6.2 (158)
Top Pitch Circle Diameter inch (mm) 3 (76) 3 (76) 3 (76) 3 (76) 3 (76) 3 (76)
Number of Holes and Hole dia. - 4 x 1/2" 4 x 1/2" 4 x 1/2" 4 x 1/2" 4 x 1/2" 4 x 1/2"
Bottom Pitch Circle Diameter inch (mm) 3 (76) 3 (76) 3 (76) 3 (76) 3 (76) 3 (76)
Number of Holes and Hole dia. - 4 x 1/2" 4 x 1/2" 4 x 1/2" 4 x 1/2" 4 x 1/2" 4 x 1/2"
Total Creepage Distance inch (mm) 10.5 (267) 15.5 (395) 24 (610) 37 (940) 43 (1092) 72 (1830)
Dry Power Frequency Withstand Voltage kV 35 50 65 85 115 155
Wet Power Frequency Withstand Voltage kV 30 45 60 80 100 145
Impulse Withstand Voltage Positive kVp 95 110 150 200 250 350
Impulse Withstand Voltage Negative kVp 95 110 150 200 250 350
Dry Power Frequency Flashover Voltage kV 40 55 70 90 120 165
Wet Power Frequency Flashover Voltage kV 35 50 65 85 110 155
Impulse Flashover Voltage Positive kVp 105 125 175 225 280 390
Impulse Flashover Voltage Negative kVp 115 135 180 235 295 405
RIV Test Voltage kV 5 10 15 22 30 44
Maximum RIV ?V 50 50 100 100 200 200
Visible Discharge Voltage kV 5 10 15 22 30 44
Cantilever Strength (upright) lbs 2000 2000 2000 2000 2000 1500
Tensile Strength lbs 7000 8500 10000 12000 14000 16000
Torsion Strength inch-lbs 6000 7000 8000 10000 12000 15000
Compression Strength lbs 10000 10000 10000 15000 15000 25000
Weight (approximate) kg 6.5 9.8 15.1 21.1 23.5 41
ANSI Reference Number Units TR 225 TR 231 TR 278 TR 286 TR 288
Cantilever Strength (upright) lbs 4000 4000 3000 1700 1400
Total Height (H) inch (mm) 12 (305) 20 (508) 30 (762) 45 (1143) 54 (1372)
Max. Diameter of Insulating Part (D) inch (mm) 7.5 (191) 9.1 (231) 9.5 (240) 8.85 (225) 9.65 (245)
Top Metal Part Diameter inch (mm) 6.3 (160) 6.3 (160) 6.9 (175) 6.3 (160) 6.9 (175)
Bottom Metal Part Diameter inch (mm) 6.3 (160) 6.8 (172) 6.9 (175) 6.8 (172) 6.9 (175)
Top Pitch Circle Diameter inch (mm) 5 (127) 5 (127) 5 (127) 5 (127) 5 (127)
Number of Holes and Hole dia. - 4 x 5/8" 4 x 5/8" 4 x 5/8" 4 x 5/8" 4 x 5/8"
Bottom Pitch Circle Diameter inch (mm) 5 (127) 5 (127) 5 (127) 5 (127) 5 (127)
Number of Holes and Hole dia. - 4 x 5/8" 4 x 5/8" 4 x 5/8" 4 x 5/8" 4 x 5/8"
Total Creepage Distance inch (mm) 15.5 (394) 37 (940) 72 (1830) 100 (2550) 116 (2946)
Dry Power Frequency Withstand Voltage kV 50 90 155 245 290
Wet Power Frequency Withstand Voltage kV 45 80 145 230 275
Impulse Withstand Voltage Positive kVp 110 200 350 550 650
Impulse Withstand Voltage Negative kVp 110 200 350 550 650
Dry Power Frequency Flashover Voltage kV 55 95 165 255 305
Wet Power Frequency Flashover Voltage kV 50 85 155 240 290
Impulse Flashover Voltage Positive kVp 125 225 390 610 710
Impulse Flashover Voltage Negative kVp 130 235 405 630 730
RIV Test Voltage kV 10 22 44 73 88
Maximum RIV ?V 50 100 200 200 200
Visible Discharge Voltage kV 10 22 44 73 88
Cantilever Strength (upright) lbs 4000 4000 3000 1700 1400
Tensile Strength lbs 20000 25000 25000 20000 20000
Torsion Strength inch-lbs 14000 20000 40000 40000 40000
Compression Strength lbs 20000 30000 60000 60000 60000
Weight (approximate) kg 16.5 28 47.5 57 88
ANSI Reference Number Units TR 304 TR 308
Cantilever Strength (upright) lbs 950 1450
Total Height (H) inch (mm) 80 (2032) 80 (2032)
Max. Diameter of Insulating Part (D) inch (mm) 8.2 (208) 10.6 (270)
Top Metal Part Diameter inch (mm) 6.3 (160) 6.9 (175)
Bottom Metal Part Diameter inch (mm) 6.8 (172) 6.9 (175)
Top Pitch Circle Diameter inch (mm) 5 (127) 5 (127)
Number of Holes and Hole dia. - 4 x 5/8" 4 x 5/8"
Bottom Pitch Circle Diameter inch (mm) 5 (127) 5 (127)
Number of Holes and Hole dia. - 4 x 5/8" 4 x 5/8"
Total Creepage Distance inch (mm) 168 (4270) 165(4191)
Dry Power Frequency Withstand Voltage kV 405 405
Wet Power Frequency Withstand Voltage kV 385 385
Impulse Withstand Voltage Positive kVp 900 900
Impulse Withstand Voltage Negative kVp 900 900
Dry Power Frequency Flashover Voltage kV 420 420
Wet Power Frequency Flashover Voltage kV 400 400
Impulse Flashover Voltage Positive kVp 1010 1010
Impulse Flashover Voltage Negative kVp 1030 1030
RIV Test Voltage kV 146 146
Maximum RIV ?V 500 500
Visible Discharge Voltage kV 146 146
Cantilever Strength (upright) lbs 950 1450
Tensile Strength lbs 20000 25000
Torsion Strength inch-lbs 40000 90000
Compression Strength lbs 60000 75000
Weight (approximate) kg 94 174

Key Features

INNOVATING FOR TOMORROW
At WSI, innovation is at the core of our mission. We are currently in the development phase of a single-part TR series Solidcore Post Insulator with an impressive height of 92 inches (2337 mm). This innovation is aimed at meeting the specific requirements of BIL 1050 kV (peak) without the need for stacking, further enhancing the efficiency and performance of your projects.
 
EXPERIENCED TEAM
WSI team is the backbone of our success. We boast a pool of experienced experts in design and manufacturing, ensuring that every insulator we produce meets or exceeds industry standards.
 
 
MINIMUM CREEPAGE DISTANCE
WSI product design adheres to the required minimum creepage distance specifications outlined in ANSI C29.9 standard, underscoring our commitment to safety and reliability. For specialized applications, WSI team can customize creepage distances to precisely match your project requirements.
 
 
 

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