The DSE7520 is an Automatic Mains (Utility) Failure Control Module designed to provide advanced load share functionality for diesel and gas generating sets that include non electronic and electronic engines, for single set applications and parallel with mains. Themodule also provides excellentmonitoring and protection features.
The module monitors the mains (utility) supply and upon detection of a loss in power automatically starts the generating set. The module's synchronising functions include automatic synchronising with built in synchroscope and closing onto dead bus. Direct and flexible outputs from the module are provided to allow connection to the most commonly used speed governors and automatic voltage regulators (AVRs).
The module has the ability to monitor generator under/over volts, over current, generator under/over frequency, under speed, over speed, charge fail, emergency stop, low oil pressure, high engine temperature, fail to start, low/high DC battery volts, fail to stop, generator short circuit protection, reverse power, generator phase rotation error, earth fault protection, loss of speed signal, fail to open, fail to close, out of sync, open circuit failure, negative phase sequence and loss of excitation.

FEATURES
Electronic engine capability
RS232 or RS485 remote
communications
Modbus RTU
Pin number protected front panel
programming
Exercise timer
Back-lit LCD 4-line text display
Multiple language options
Voltage measurement
Configurable inputs (9)
Configurable outputs (5)
Automatic start
Manual start
Audible alarm
LED indicators
Built-in governor and AVR control
for easy operation and panel
engineering
Engine history event log
Engine protection
Fault condition notification to a
designated PC
Front panel mounting
PC configuration
Mains (utility) failure detection
Configurable alarm timers
Configurable start & stop timers
Automatic load transfer
SMS alert messaging
Multi set communications
Front panel mounting
Remote control and monitoring
Dedicated load test button
kW overload alarms
Engine temperature alarms
MV-LV synching
LOAD SHARE FEATURES
No-break transfer
Peak shaving/peak lopping
kW on mains (utility) level
Mains (utility) decoupling test mode
Manual speed/frequency adjust
ROCOF & vector shift
Dead bus sensing
Direct governor & AVR
communication
Volts & frequency matching
kW and kVar load sharing
Manual voltage adjust
BENEFITS
Sends SMS messages to
engineers to notify specific engine
problems (GSM Modem and SIM
card required)
On-site and remote module
configuration (Modem required)
In-built engine diagnostics
removes the requirement for
service equipment
Full engine protection &
instrumentation without the need
for additional senders (Electronic
engines only)
Remote monitoring of the module
using comprehensive DSE PC
software
License free PC software
No-break return capa