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Pacific Power EPTS-75A-3 - Front Side
Pacific Power EPTS-75A-3 - Front
Pacific Power EPTS-75A-3 - Back
Pacific Power EPTS-75A-3 - Front Top
Pacific Power EPTS-75A-3 Side Above

Pacific Power EPTS-75A-3

Rent 3-Phase 75 Amp Switch
  • Compliant for 3-Phase AC Voltage Dips & Interruptions
  • Max 480V L-L Test Voltage (WYE)
  • Designed for use with AFX & LMX Sources
  • Test Solution for IEC 61000-4-29 DC Testing
  • Current ISO 17025 Accredited Calibration
Included
VDT100R Low Inductance Test Load
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Description 

The Pacific Power Source Electronic Power Transfer Switch module (EPTS) uses solid state electronic switch technology to meet the IEC61000-4-11 (AC), IEC61000-4-27 (AC), IEC61000-4-34 (AC) or IEC61000-4-29 (DC1) Test requirements for voltage dips, short interruptions and voltage unbalance with voltage transition rates less than 5 usec. This supports full compliance testing of equipment for CE compliance.

Voltage Dips, Interrupts, Variations & Phase Unbalance

The EPTS Series units are designed to support full-compliance voltage dip testing for any dip level. It requires the use of AC mains, fixed AC generator or DC Power Supply for the nominal 100% test level and a programmable AC and DC capable power source for the dip levels needed.

Power Connections

All power connections are made at the rear panel of the EPTS chassis. There are no user controls on the front other than the power On/Off switch. Sta­tus and Error indicators are provided for each phase. The EPTS generates a phase sync signal from the AC Main input to synchronize the programma­ble AC source. All control of the programmable AC power source and the EPTS is done using the included Epts_Gui IEC Test software.

Principle of Operation

The EPTS hardware is designed specifically to provide full compliance testing of products for CE marking. This requires support of the fast voltage rise and fall time called out in IEC test standards like IEC61000-4-11, IEC61000-4-27, IEC61000-4- 34 (AC) and IEC 61000-4-29 (DC).

This is accomplished by using an electronic power transfer switch controlled by the same IEC Test software that controls the AC or DC dip level of the programmable power source. The nominal voltage to the unit under test is supplied by either a second AC or DC power supply or in case of AC, from the local mains.

For IEC 61000-4-29 DC voltage test applications, a DC power source is used in place of the AC Mains.

Compliance:
AC Voltage Range
400Vac max.
DC Voltage Range
425Vdc max.
Current
Maximum 75A/phase
Accuracy
< 0.25%
Rise / Fall Time
1 to 5 usec
Frequency
45.0 - 65.0 Hz
Phase error (3 phase)
.5% +/-
Current
IEC 61000-4-11, Max
75A / Ph
IEC 61000-4-34, Max
75A / Ph
Interfaces, Indicators, & Controls:
Power Input
AC Mains, 1 or 3 Phases + Neutral
AC Source, 1 or 3 Phases + Neutra
Power Output
To EUT, 1 or 3 Phases + Neutral
Control Interface
USB Device Type B, Rear panel
Line Sync
From AC Mains or Generator
Auxiliary I/O
DB9 Connector, Female, Rear panel
LED Indicators - Front Pane
Mode
DIPS or Bypass
Phase Status
Mains or Source
Phase Error
For each Phase
Controls - Front Panel
Power On/Off
Toggle Switch, Front panel
Mechanical & Environmental EPTS-75A:
Dimensions
222 x 432 x 585 mm
8.75 Inches x 17 Inches x 23 Inches
Weight
42.5 Kg / 93.7 lbs
All EPTS Models
Temperature
0 - 40 Degrees / 32 - 104 Degrees
Humidity
0-95 % non-condensing
Altitude
6500 ft / 2000 m (operating)
Documentation

The EPTS module is placed between the output of a programmable AC source and the equipment to be tested for compliance to IEC 61000-4-11or IEC 61000-4-34.

The programmable AC Power Source is programmed to supply the Voltage Dip level called out in the test standard, either 80%, 70%, 40% or 0% of Unom or any other value from 0 Vrms to 400 Vrms.

For Voltage dips and interruption testing, the EPTS switches between the nominal AC line voltage provided by the grid and the output of the programmable AC source for a period determined by the EPTS control software as programmed per the IEC 61000-4-11/34 standard.

The user can configure specific test voltage dip levels and durations as required by the IEC 61000-4-11/34 and IEC61000-4-27 product standards and save these settings for future use as needed. For the optional EIC 61000-4-11/-34Voltage Variations tests, the EPTS-3-XX switch is placed in BYPASS mode and the programmable AC power source is used only to generate the requisite voltage variation sweeps and timing.