Pioneer Specialty Transformers

Posted in Energy Efficient Transformers

Pioneer Specialty Transformers
Pioneer manufactures a number of specialized transformer products. Some of the types most commonly requested by our customers include:

  • Unitized Pad Mounts
  • Platform Mounts
  • Grounding Transformers
  • Rectifier Transformers
  • Vault Type Transformers

Unitized Pad Mounts
Pioneer manufactures low profile, tamper proof, totally integrated pad mount substations, called unitized pad mounts. These units are used at commercial sites such as apartment complexes, shopping centres, office complexes, industrial parks, factories, airports, hospitals, schools and military installations. The units have an aesthetic appearance and avoid the necessity of fences and overhead electrical structures.

Generally, any end user buying power at the primary voltage level, or owning and operating their own HV distribution system should consider unitized pad mounts. This design eliminates hot sticks so that non-utility personnel can switch off the unit. Inside the compartment an external load break switch on the HV side can be checked through a viewing window to see if the blades are in the open or closed position. a mechanical interlock system prevents access to the fuse compartment unless the load break switch is in the open position. Sizes are as follows:

5kV CLASS

60kV BIL

UP TO 3MVA

15kV CLASS

95kV BIL

UP TO 5MVA

25kV CLASS

125 & 150kV BIL

UP TO 5MVA

27.6kV CLASS

150kV BIL

UP TO 5MVA

34.5kV CLASS

150kV BIL

UP TO 5MVA

The units conform with CSA, ANSI or EEMAC applicable standards. we can provide:

  • fused or unfused load break switch on HV side
  • secondary metering compartments
  • LV distribution center (fusable switches, enclosed CB, metering)
  • shunt trip coil
  • lightning arresters
  • key interlocks
  • various gauges
  • fan cooling or provision
  • 55/65 degree C temperature rise

Platform Mounts
We offer a range of platform mounted units from 250 kVA to 1000 kVA with voltages up to 46kv, 250kv BIL. these units can also be supplied for substation installation up to 2.5 MVA. We offer the following options:

  • special LV terminations like throat or junction box
  • dual voltages up to a ratio of 3:1
  • tap switches
  • various gauges
  • skid base

Grounding, Rectifier and Vault-Type Transformers
Pioneer offers a number of other specialized transformer units, engineered and manufactured in a range of sizes and to customer specifications including grounding, rectifier and vault-types, among others.

Pioneer Network Transformers

Posted in Energy Efficient Transformers

Pioneer Network Transformers
750 kVA 12kV-480Y/277V
Network Transformer

Pioneer Transformers manufactures subway and vault-type network transformers up to 3.75 mVA as per ANSI standard C57.12.40 and CSA C199. Fifty years of core and coil design result in a strong, rigidly braced unit that will withstand the most severe short circuit conditions.

The high voltage terminal chamber, which is separate from the transformer tank, allows a variety of high-voltage cable terminations like: wipping sleeves, stuffing boxes, pot heads and apparatus bushings The high-voltage switch chamber, which is also separate from the transformer tank, contains a three pole, two-position or three position switch. the switch can be of the “mag-break” type for for fast interruption of the exciting current. A variety of accessories are available in order to match customer specifications.

Pioneer Small Power Transformers

Posted in Energy Efficient Transformers

Pioneer Small Power Transformers
2.0 MVA 13.8kVA – 600Y/347V
Small Power Transformer

We offer a full range of small power transformers for the utility and industrial/commercial market up to 30 MVA base rating and 69kV class. for some applications, larger units can come with mitred stacked cores for rectangular or circular coils. the units can be supplied with top or wall mounted bushings or with throats or junction boxes. these units comply with CSA C2, CSA C88 and ANSI C57. typical options and accessories are:

  • tap changer for de-energized operation
  • on load tap changers
  • multiple voltage arrangements
  • fan cooling or provision for fan cooling
  • current transformers
  • neutral grounding resistor
  • external core ground
  • special pressure relief devices
  • lightning arresters
  • 55/65 C temperature rise
  • silicone or R-temp filled

Pioneer Pad Mount Transformers

Posted in Energy Efficient Transformers

Pioneer Pad Mount Transformers
1500 kVA 24.94 kV Grd Y – 600Y/347V
Dead Front Radial Feed

We manufacture three phase fully tamper proof pad-mounted transformers in the range of 75 kVA to 10 mVA with top voltages of 46kv voltage class. The units can be designed for radial or loop-feed applications, in live-front or dead-front execution. when fuses are required we provide a hinged hatch above the fuses to reduce the tank height to a minimum. all units comply with CSA-C227 and ANSI C57. the following options are available:

  • draw-out expulsion fuses
  • full range of current limiting fuses
  • bay-o-net fuses
  • single or two fuse systems
  • load break HV bushing inserts
  • dual voltage switch
  • tap switch
  • load break switch/switches
  • various gauges
  • 55/65 degree C temperature rise

PQI TPM Integrated Transformer Performance Meters

Posted in Energy Efficient Transformers

PQI TPM Integrated Transformer Performance Meters
Type TPM Integrated Transformer Performance Meters™ are installed on all PQI e-Rated™ Distribution Class Transformers. In addition to their revenue class metering and data logging capabilities, these integrated meters, with CSA C802.5 compliant software, determine each transformer’s Total Losses and Efficiency under their measured nonlinear loading profiles.

In addition, IEEE Std. C57.110 compliant software also determines each transformer’s No-Load Losses and Load Losses, including its nonlinear ‘Penalty Loss’ component and EPA Environmental Benefits. In its ‘transformer comparison mode’, given the cost of each transformer and the cost of energy, the software will also compare the performance of any two transformers, including A/C costs, and calculate an annual saving, payback and return-on-investment, in a ‘substitution’ or ‘before end-of-life replacement’ scenario.

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PQI Air Core Reactor

Posted in Energy Efficient Transformers

PQI Air Core Reactor
Windings are manufactured with aluminum or copper, (strip or shaped conductors in parallel where necessary) arranged on layers or discs with special consideration given to minimize eddy current losses. The insulating materials used during production are always UL listed systems. To suit various applications and environmental conditions PQI Dry Type Air Core Reactors are manufactured using our multiple VPI and Epoxy Impregnation system. For harsh conditions PQI offers Reactors that are solidly cast in epoxy in special molds filled under vacuum.

Reactors can be supplied either as single-phase coils individually supported on insulators or as three phase coils stacked vertically.

A variety of custom enclosure designs are available to shield and protect the reactors magnetically and environmentally.

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PQI HQ

Posted in Energy Efficient Transformers

PQI HQ
A solution for electrical distribution systems that demand stable, reliable power characterized by unparalleled power quality and efficiency. Applications where PQI Type ‘HQ’ Active HarmVAr Filters are often applied include commercial, industrial, institutional, military, mining, municipal, solar, wind turbine and many others.

The PQI Type ‘HQ” Active HarmVar Filter optimizes power system performance by combining the use of proven IGBT technologies with leading edge DFT/FFT algorithms enabling the simultaneous and/or discrete execution of harmonic (VArH) and reactive (VArQ) compensation methods in real-time.

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PQI Z and Mini-Z

Posted in Energy Efficient Transformers

PQI Z
Type Z e-Rated® I0Filters are highly effective, three-phase, four-wire, passive electromagnetic filters with ultra-low zero-sequence impedances. These filters have been specifically designed to provide a parallel path for all zero-sequence harmonic currents that are generated by phase-to-neutral connected nonlinear electronic loads. Power quality benefits are optimized when filters are installed as close as possible to these electronic loads.

Type Z filters are normally installed at all sub-panels that supply single-phase nonlinear electronic loads via a three-phase circuit breaker. Whether specified at the design stage for new construction or applied in an existing sub-system, these filters are normally sized for potential zero-sequence harmonic current levels. This application philosophy eliminates the need to increase filter capacity as zero-sequence loading increases over time.

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PQI SY

Posted in Energy Efficient Transformers

PQI SY
Type SY e-Rated® low voltage dry-type isolation transformers exceed all existing and pending energy efficiency requirements. Energy efficiency requirements are determined at 35% of the transformer’s full load (FL) rating. As a result, manufacturers generally optimize their transformers’ efficiencies at approximately 35% FL.

Type SY transformers’ ultra-low Excitation (no-load) Losses provide high efficiency during periods of light-loading (<15% FL). This benefit is achieved by using higher quality, grain oriented silicon core steel in the Unicore™ cores of lower kVA ratings and in the full and step-lap miter-cut cores, with reduced laminations per group, in higher kVA ratings.

Unlike Excitation Losses, which are constant from no-load to full-load, Impedance (load) Losses increase rapidly above 15% FL; particularly when the transformer’s loads are nonlinear. To maintain energy efficiency, Type SY e-Rated® transformers’ peak efficiencies can be matched to anticipated or measured average loading above 35% FL.

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PQI PY

Posted in Energy Efficient Transformers

PQI PY
Type PY harmonic mitigating Power TransFilters™ exceed all existing and pending energy efficiency requirements under nonlinear loading. Type PY transformers’ ultra-low Excitation (no-load) Losses provide high efficiency during periods of light-loading (<15% FL). This benefit is achieved by using higher quality, grain oriented silicon core steel and full and step-lap miter-cut cores with reduced laminations per group.

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