Atec Lambda-EMI-EMPH Series - Manual

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Features
CC/CV auto crossover
Forced air cooling
Lifting eye-bolts
Meters and mode
indicator lights
Remote programming
by resistance, voltage or
current
Circuit breaker
protection
Contactor on/off
interlock control
High current ratings at
low output voltages
Built-in RFI protection
Mode lamps
Wide variety of outputs
2 Year Warranty
Other Solutions
Lower Power ESS
Downloadable Manual in
PDF Format (less
schematics)
Download RSTL
Programming Manual in
PDF Format
EMHP - 20kW to 90kW, up to 3000A
The EMHP series of power supplies is the
highest power line of DC regulated high
power units available in the range of 20-90
kW. Based on a regulated SCR phase control
topology the EMHP series is ideally suited to
applications where raw bulk power is
required in a robust reliable package.
All models are fully programmable sources of
constant voltage and or constant current with
automatic crossover and fully metered.
In an SCR phase-controlled DC Power
Supply, output is controlled by modulating
the conduction angle of the controlling SCRs.
The EMHP Series, input ac is applied to pairs of bi-directionally connected SCRs placed
within the primary circuit of this transformer is rectified and L/C filtered to provide a low
ripple DC output. Both output voltage and current are sensed and compared against
internal references or externally applied control levels so the supply provides either
constant voltage or constant current regulation with automatic crossover depending on
control level. Additional circuitry provides bias levels, circuit protection and metering
functions.
Specification
AC Input
440/480 VAC, three phase 60 Hz - optional
inputs available
Softstart AC inrush
Output Characteristics
Regulation: 0.1%
Stability: 0.05%
Operating temperature: 0-50 deg C, derate
above 50 deg C
Protection Features
Overvoltage
Overtemperature
OverCurrent
Programming
Front panel controls and remote analog
resistance, voltage and current programming
(standard);
0-5V and 0-10V optional)
RS232 and IEEE-488 (optional)
Options
Overvoltage protection
Casters or I beam base
Analog or digital meters
Digital programming interface
Mechanical
Size 1: 30" H x 22 1/4" W x 27 3/4" D, 500-
750 lbs. (227-341 kg)
Size 2: 34 5/8" H x 27 1/2" W x 29 1/4" D,
750-900 lbs. (341-409 kg)
Size 3: 44 1/2" H x 27 1/2" W x 33 1/4" D,
1000-1500 lbs. (454-682 kg)
Size 3.5: 44 1/2" H x 27 1/2" W x 39" D,
1500 lbs. (682 kg)
Standard Model Listing