Hammond Power Solutions HPS Sentinel Features and Benefits

• HPS Sentinel G, K, and H product lines meet the latest
energy efficiency standards outlined by DOE and NRCan
offering significant energy savings to our customers and
positive societal/environmental benefits.

• Standard Type 3R enclosure suitable for indoor or
outdoor applications.

• For our customers, higher efficiency translates into:

- Increased profitability due to lower operating costs

- Decreased cost of ownership over the lifetime of

the transformer

- Less air conditioning cost due to lower heat

emissions

• Expanded catalog product offer - up to 1000kVA

• Standard 10kV BIL rating provides increased reliability
and protection against critical equipment failure
(including voltage spikes and other line transients).

• Standard integral floor and wall mounting brackets up to
45kVA allow for faster installation.

• All units utilize a uniform 220°C insulation system with a
80°C, 115°C, or 150°C temperature rise.

• Industry leading design solutions, technology and
materials continue the legacy of quality and reliability in
all HPS products.

Core & Coil Construction:

• Manufactured from quality non-aging, cold rolled,
silicon steel laminations using state-of-the-art
equipment

• Cores are precision cut to close tolerances which
eliminates burrs and improves performance

• Core is coated to prevent the ingress of moisture

• Precision wound with copper or aluminum conductors
that are electrically balanced to minimize axial forces
during short-circuit conditions

• Robust interface between core & coils for better short
circuit performance

Conductor material: Copper or Aluminum
Temperature rise: 150ºC typical (low rise options avail.)
Insulation system: 220ºC

Standard type 3R enclosure

on all low voltage HPS transformers

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Integrated wall mounting brackets for

added convenience at no extra cost

Expanded neutral bar for multiple

customer connections

Tired of spending extra money on labor and material to
install optional transformer features? Purchasing an HPS
Sentinel Transformer will save you all these additional costs.
HPS Sentinel has these optional features pre-installed as
part of our standard product line.

All HPS transformers are tested at HPS prior to shipment.
They must meet very stringent quality criteria prior to
release.

Standard Type
3R Enclosure

Wall Mounting
Brackets

Standard
Knock-Outs
For Fast
Conduit
Connections

Primary Terminal
Lugs Included

Vibration Isolation
Pads

Standard IBC 2012/
OSHPD Seismic
Ratings

Factory Installed
Grounding Lugs

Drip Shield

Installer Friendly Outward
Facing Offset Enclosure
Mounting Holes

Separate High Voltage &
Low Voltage Terminal Boards
For Safe & Easy Cabling

Factory
Pre-Installed
Lugs

Expanded Neutral Bar For
Easier Multiple Neutral
Connections

Factory installed main grounding lugs Bottom cable entry area where

applicable

Offset outward facing floor installation

holes for easy power tool access

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