Download Paralleling and Protection Unit (PPU)

Type PPU
Generator Paralleling and Protection Unit
multi-line 2
4921240193F
•
Compact system in one unit
•
Generator synchronisation, protection
and control
•
True 3-phase RMS measurements
•
Easy-readable display
•
Separate display
PPU
Application
The PPU generator controller is a microprocessorbased control unit containing all necessary functions for
control of a synchronous generator. The PPU can
synchronise the generator and after synchronisation
carry out all necessary generator control and protective
functions.
The PPU contains all necessary 3-phase measuring
circuits and presents all values and alarms on the LC
display. Programming is easily done via a menu
structure in the display (password protected) or via the
RS232 PC connection and the multi-line 2 Windows®
based service software. The service software offers
additional features such as monitoring of all relevant
information during commissioning, saving/download of
settings and download of software updates.
The PPU is a compact all-in-one unit designed for
generators running:
- stand-alone
- parallel with other generators
- parallel with the mains
The PPU is well-suited for PLC-controlled systems,
interfacing can be done via binary and analogue I/O’s or
via (optional) serial communication.
The PPU carries out a cyclical self-test, displaying error
messages in clear text and indicating errors with relay
outputs, should any errors occur.
Display
DEIF A/S
The display is separate, for mounting directly on the
PPU or in the panel front, connected via cable (option
J).
Standard functions
Synchronisation
- frequency control with programmable slip freq.
- voltage matching possible
- breaker ON pulse at exact sync. point with
programmable generator breaker delay time
- “black busbar” operation of generator breaker
possible
Power or frequency control
The PPU can control the power or frequency in 4
different modes with selection of internal
(programmable) or external +/- 10 VDC set point.
By combining these all operation schemes of a
generator can be implemented. The modes are selected
via binary inputs or (optional) serial interface.
- fixed frequency (standalone running)
- fixed power (parallel with mains)
- droop (controlled frequency drop with increasing
load)
- load sharing (generators in parallel, island operation)
The PPU performs programmable ramp-up and rampdown of the power in connection with breaker
operations.
Generator protection
All protection functions have definite time characteristic. Inverse time characteristic can be chosen for:
- overcurrent (2 levels)
- reverse power
4 programmable relay outputs for alarm/trip.
Measured and calculated values
Generator:
- voltage (3-phase U + N)
- current (3-phase I)
- active power (kW)
- reactive power (kvar)
- power factor (cos ϕ)
- frequency (f)
- energy production (kWh)
Busbar:
- voltage (3-phase U)
- frequency (f)
Options
-
Loss of mains protection package
Busbar protection package
Generator add-on protection package
Voltage/var/cos ϕ control
Analogue controller outputs
Analogue transducer output
Start/stop relay outputs
Serial communication
Display cable with plugs, 3 m.
User’s manual (hard copy)
Display gasket for IP54
Principle diagram
Type PPU
Protection:
Unit: IP20
Display: IP52 (IP54 with gasket: option L)
To IEC 529 and EN 60529
Approvals:
The PPU is approved by the major
classification societies. Contact Deif
for details.
Governors:
Multi-line 2 interfaces to all governors,
including GAC, Barber-Colman,
Woodward and Cummins. See
application notes at www.deif.com or
request doc. no. 4189340149 from DEIF.
Options
For available options – please see doc. no. 4921240240.
Technical specifications
Accuracy:
Class 1.0, to IEC 688
Operating temp.:
-20…70οC
Climate:
Class HSE, to DIN 40040
Meas. voltage:
100/110V AC (1) to 690V AC (4)
+/- 20%.
Consumption max. 0.15VA / phase.
Meas. current:
-/1 or -/5A AC.
Consumption max. 0.3VA / phase.
Current overload:
4 x In continuously
20 x In , 10 sec. (max. 75A)
80 x In , 1 sec. (max. 300A)
Meas. frequency:
30…70Hz
Aux. supply:
24V DC –25/+30 %
max. 8W consumption
Binary inputs:
Optocoupler, bi-directional
Input voltage 12…32V DC,
impedance max. 2.4kΩ
Relay outputs:
250V AC / 24V DC, 8A
(Unit status output: 1A)
Unit: H x W x D = 120 x 230 x 165 mm
Display: H x W x D: 115 x 220 x 20 mm
Open collector
outputs:
Supply 12…32V DC, max. 10 mA
Analogue inputs:
-10…0…+10V DC
not galvanically separated
Impedance max 100kΩ
Mounting:
DIN-rail mount or base mount.
Load sharing
lines:
-10…0…+10V DC
Analogue outputs:
0(4)...20mA
Galvanically separated
Active output (internal supply)
Load max. 500Ω
Safety:
To EN 61010-1, installation category
(overvoltage category) III, 600V,
pollution degree 2
Galvanic separation: Between AC voltage, AC current and
other I/O’s: 3250V AC, 50Hz, 1 min.
Between analogue outputs: 500V DC,
1 min.
EMC/CE:
To EN 50081-1/2, EN 50082-1/2
SS4631503 (PL4) and IEC 255-3
Material:
All plastic materials are selfextinguishing acc. to UL94 (V1)
Plug connections:
AC current: 4 mm multi stranded
Other: 2.5 mm2 multi stranded
Display: 9-pole Sub-D female
PC: 9-pole Sub-D male
2
Order specifications
Errors and changes excepted.
DEIF A/S, Frisenborgvej 33
DK-7800 Skive, Denmark
Tel.: +45 9614 9614, Fax: +45 9614 9615
E-mail: [email protected], URL: www.deif.com