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GE Grid Solutions
Models PTW5-1-110&PTW5-2-110

Models PTW5-1-110&PTW5-2-110

Product catalog summary

Specifications:
The document outlines the specifications for medium voltage indoor voltage transformers, specifically models PTW5-1-110 & PTW5-2-110. These transformers are designed to meet ANSI/IEEE C57.13 standards and are approved for revenue metering in Canada. They operate at a frequency of 60 Hz with a maximum system voltage of 15.5 kV and a BIL of 110 kV. The thermal rating is 1,500 VA at 30°C ambient and 1,000 VA at 55°C ambient. The transformers weigh approximately 85 lbs unfused.

Procedures:
The document provides guidance on using a circle diagram to predict transformer performance under various loads and power factors. It also includes recommended minimum spacings for installation to ensure performance during high potential tests, impulse tests, and other conditions.

Norms and Standards:
The transformers are manufactured to meet ANSI/IEEE C57.13 requirements. Primary voltages marked with an asterisk are approved for revenue metering in Canada.

Recommendations:
It is recommended that system line-to-line voltage not exceed the transformer's maximum system voltage level. For continuous operation, the transformer primary voltage should not exceed 110% of the rated value. Voltage transformers connected line-to-ground should not be used as grounding transformers.

Design and Construction:
The transformers feature unfused and fused primary terminals with specific configurations. The core and coil assembly is vacuum encapsulated in polyurethane resin. A test card is provided with each unit.

Regulatory Approvals:
The transformers have regulatory agency approvals E145172 and LR89403.

Contact Information:
For further inquiries, contact details for GE Grid Solutions are provided, including phone numbers for different regions.

Catalog excerpts

Models PTW5-1-110 & PTW5-2-110 Indoor Voltage Transformers Medium Voltage Accuracy Class Maximum System Voltage 0.3. WXMYZ 1.2 ZZ at 100 % rated voltage with 120 V based ANSI burden. 0.3 WXMY, 1.2Z at 58 % rated voltage with 69.3 V based ANSI burden Thermal Rating 1,500 VA 30 °C. amb. 1,000 VA 55 °C. amb. Approximate weight 85 lbs. unfused. SWITCHGEAR STYLE Two Bushings UNFUSED Two Bushings REGULATORY AGENCY APPROVALS Manufactured to meet the requirements of ANSI/IEEE C57.13. NOTE: All Primary voltages marked with an asterisk (*) are approved for revenue metering in Canada by Industry Canada, Approval No. AE-0431 Rev. 01

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Models PT Models PTW5-1-110 & PTW5-2-110 Recommended Minimum Spacings A = Unit to Unit or to Ground = 1.25” minimum. B = HV to Ground in air = 6.50” minimum. Recommended spacing are for guidance only. User needs to set appropriate values to assure performance for high potential test, impulse test, high humidity, partial discharge, high altitude, and other considerations like configuration. (a) Two fuse transformers should not be used for Y connections. It is preferred practice to connect one lead from each voltage transformer directly to the neutral terminal, using a fuse in the line side of...

Open the catalog to page 2

Models PTW5-1-110&PTW5-2-110

Models PTW5-1-110&PTW5-2-110

Catalog excerpts

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