Type 2J6 Transformer Set
The Type 2J6 Uniload Voltage Transformer Test Set is generally used
in combination with the Type KVTS Voltage Transformer Testing System
in accuracy testing of voltage transformers. Transformers with primary ranges from 14,400
through 36,000 volts can be tested. When combined with the Type 2J4-4
Transformer Set, this range can be expanded down to 120 volts.
The transformer test set shall consist of three major
parts, as follows:
A precision multirange voltage transformer standard
with four primary ranges (from 14,400 to 36,000 volts) and a 120 volt secondary. The
voltage ranges shall be specified by the customer when ordering.
A heavy-duty supply transformer with a primary of 120
volts and with secondary ranges the same as the primary ranges of the precision
A steel mounting base which aligns and supports the
above two transformers.
Hook-eyes shall be provided on the top of each
transformer to facilitate lifting.
B. Voltage Range Selection
For convenience and safety, a high-voltage connection
bar and lead set shall be provided. This bar shall be used for selecting the proper
voltage range on the supply transformer and precision transformer.
The design of the supply transformer, precision
transformer, high-voltage connection bar, and steel mounting base shall be such that
incorrect connections during tests are prevented.
C. Accuracy and Burden
The secondary burden which will be placed on the
precision transformer shall be stated at the time of order.
When used at the specified burden, the precision
transformer shall have a ratio error well within ±0.02% and phase angle error well within
The precision transformer shall be wound such that it
has practically the same ratio and phase angle accuracy on all ranges.
The precision transformer shall provide one voltage
range which is commonly present on lower voltage precision transformer sets to facilitate
calibration of said transformer.
Calibration of the precision transformer shall be
able to be accomplished using the common voltage range described above. This feature shall
allow for extension of the benefits of the One-to-One calibration method to the precision
Prior to delivery, the precision transformer shall be
calibrated by NRC. The National Institute of
Standards and Technology has ceased high voltage
E. Dimensions and Weight
The equipment shall measure approximately 38.75
in. (98.4 cm) Wide, 23.75 in. (60.3 cm) Deep, and 30 in. (76.2 cm) High. The net weight
shall be approximately 1220 lbs. (553.4 kg).