Benefits of the Pacific Crest Transformer design

• Secondary unit substation transformers are designed for reliability and heavy industrial use.
• Flexibility in design, combined with the highest quality manufacturing processes and equipment enable PCT toprovide a product optimized to your requirements.
• PCT's secondary unit substation transformers are also made with a wide range of core steels and winding conductors to meet total-ownership cost and material requirements.

Application

• Pacific Crest Transformer's secondary unit substation transformers are designed for use in industrial plants, electric power generating stations, commercial buildings and public access areas where security and public safety are of premier importance.
• All ratings are designed in accordance with applicable ANSI, NEMA and IEEE standards.

Product Scope

• kVA ratings - 75 kVA to 12000 kVA
• ANSI standard devices and accessories on all models
• Air terminal chambers or various  HV and LV transition options available
• Designed for indoor and outdoor installations

Ratings

• kVA ratings - 75 kVA to 15000 kVA
• Primary Voltage - all voltages through 46 kV - 250 kV BIL
• Secondary Voltage - all voltages through 15 kV
• Frequency - 60Hz
• Temperature rise 65° C
• Consult factory for ratings not shown

Standard Features

• De-energized tapchanger if required
• Secondary spade connectors
• Primary clamp type eyebolt connectors
• Combination drain and sampler (750 kVA and above)
• Pressure test and upper filter press connection - 1" pipe plug
• NEMA two hole ground pad
• Corrosion resistant nameplate
• Provisions for jacking and lifting
• Base suitable for rolling or skidding
• Pressure relief valve
• Rugged steel plate tank reinforced with steel channel selections for strength and rigidity
• Undercoated base
• Door has three-point locking mechanism
• Externally clamped high and low voltage bushings
• Primary compartment accessible only after low voltage door is opened
• 1/2" liquid level plug
• Welded cover with handhole

Optional Features Five-legged core for wye-wye connections 50 cycle 55/65° C temperature rise High fire point liquid Loop feed construction Dead front construction Lightning arrestors Dial type thermometer Liquid level gauge Pressure vacuum gauge Pressure vacuum gauge with bleeder Combination drain and sampler Pressure relief device Bay-o-net fuses Weak links Current limiting fuses Loadbreak oil switch(es) Loadbreak air switch(es) Secondary current transformers Secondary molded case breakers Potheads Gauges furnished with alarm contacts Bolted cover with handhole

Standard Tests Each unit is subjected to the following tests: Resistance Ratio Polarity Phase relation Core loss Exciting current Impedance Load loss Applied potential test Induced potential test Quality control impulse test Pressure leak test

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