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Models PTG3-1-60 & PTG3-2-60

Models PTG3-1-60 & PTG3-2-60

Models PTG3-1-60 & PTG3-2-60

Product catalog summary
Specifications:
The document outlines the specifications for the GE Grid Solutions Models PTG3-1-60 & PTG3-2-60 indoor voltage transformers. These transformers are designed for medium voltage applications and comply with ANSI/IEEE C57.13 standards. They are classified by U.L. according to IEC 44-1. The accuracy class is specified as 0.3 WXMY, 1.2 Z at 100% rated voltage with a 120 V based ANSI burden, and 0.6 WX, 1.2 MY at 58% rated voltage with a 69.3 V based ANSI burden. The frequency is 60 Hz, and the maximum system voltage is 5.6 kV with a BIL of 60 kV.
Thermal Rating:
The thermal rating is 750 VA at 30°C ambient and 500 VA at 55°C ambient. The approximate weight of the unfused transformer is 34 lbs.
Design and Construction:
The primary and secondary terminals are brass screws with flatwashers and lockwashers. The core and coil assembly is vacuum encapsulated in polyurethane resin. A primary fuse is not supplied but recommended, with specific ratings based on primary voltage.
Regulatory Approvals:
The transformers are approved for revenue metering in Canada by Industry Canada, Approval No. T-215 Rev. 02.
Installation Recommendations:
Recommended minimum spacings are provided for unit-to-unit and HV to ground in air. Users should set appropriate values for various tests and conditions. It is advised that system line-to-line voltage should not exceed the transformer's maximum system voltage level.
Connection Guidelines:
Two fuse transformers should not be used for Y connections. Voltage transformers connected line-to-ground should not be considered grounding transformers and must not operate with secondaries in closed delta due to potential excessive currents.
Additional Notes:
The document includes a circle diagram for predicting transformer performance under various loads and power factors. It also provides guidelines for fuse selection and connection practices to ensure safe and efficient operation.
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Catalog excerpts

Models PTG3-1-60 & PTG3-2-60-1

Models PTG3-1-60 & PTG3-2-60 Indoor Voltage Transformer Medium Voltage Accuracy Class Thermal Rating 0.3 WXMY,1.2 Z at 100 % rated voltage with 120 V based ANSI burden. 0.6 WX, 1.2 MY at 58 % rated voltage with 69.3 V based ANSI burden. Approximate weight 34 lbs. unfused. Maximum System Voltage 5.6 kV, BIL 60 kV. REGULATORY AGENCY APPROVALS Manufactured to meet the requirements of ANSI/IEEE C57.13. Classified by U.L. in accordance with IEC 44-1 NOTE: All Primary voltages marked with an asterisk (*) are approved for revenue metering in Canada by Industry Canada, Approval No. T-215 Rev. 02

 Open the catalog to page 1
Models PTG3-1-60 & PTG3-2-60-2

Circle Diagram Models PTG3-1-60 & PTG3-2-60 Recommended Minimum Spacings A = Unit to Unit = 0.75” minimum. B = HV to Ground in air = 3.00” 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. The circle diagram can be used to predict the performance of a transformer for various loads and power factors. A convenient scale of volt-ampere is shown on the unity power factor line (u.p.f) and commences at the zero...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.