Hammond Power Solutions TE3A0020KKM NRC drive isolation transformer, 3-phase 20 kVA, 480V delta primary to 480Y/277V wye secondary, copper windings, 150°C rise, 220°C insulation system, Type 3R enclosure, single electrostatic shield, 60 Hz, CSA and UL listed, NRCAN 2019 compliant.

Approval

CSA, UL

Drive isolation transformer

3ph 20kVA 480V-480Y/277V 60Hz CU

Duty

General duty

Efficiency regulation

NRCAN 2019 (Canada)

Electrostatic shield

Single

Enclosure dimensions

21.88in/556mm(H), 21.5in/547mm(W), 20.12in/512mm(D)

Enclosure finish

ANSI 61 grey, UL50

Enclosure ground assembly

No

Enclosure IR window

No

Enclosure PN (std)

DH1-N3R

Enclosure type

Type 3R / IP24

Frequency

60Hz

Impedance (std)

2.5% - 6.5%

Insulation class

220°C

Material

Copper

Motor HP

Not Selected

Nameplate

HPS standard

Number of secondaries

1 (6-pulse)

Phase

Three phase

Primary BIL

10kV

Primary connection

Delta

Primary FCAN (std)

2x2.5%

Primary FCBN (std)

2x2.5%

Primary termination (std)

Mechanical lugs

Primary voltage

480D

Rating

20 kVA

Secondary BIL

10kV

Secondary connection

Wye-N

Secondary termination (std)

Mechanical lugs

Secondary voltage

480Y/277

Seismic compliance

IBC 2018 (Sds=2.0, z/h=0, lp=1.5)

Sound level

45 dBA (NEMA ST-20)

Standard kVA

20

Temperature rise

150°C

Thermal protective device

Normally closed (all coils) thermostats with 200°C setpoint, typically built to order

Vector configuration

Dyn1 (-30°)