Established 1984

Specialising in lighting solutions for over 25 years

DC Emergency Systems Limited has uniquely grown its business by referrals by offering support services to existing service providers operating primarily in the lighting market within the UK.

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HIGH POWER AC SYSTEMS - HPAC

HIGH POWER AC SYSTEMS - HPAC

DC's high power systems are manufactured to the highest standards from the UK's leading systems supplier. They offer long trouble free operation with a wide choice of batteries and options for specific applications.
DC's High Power Static inverter range of Central AC systems are active, off-line sine-wave inverters and provide the ultimate solution in emergency lighting for medium to large premises. Producing a sinusoidal waveform with <5% harmonic distortion into a linear load, the HPAC range is ideal for use with the latest high frequency ballasts and offers a no-break option, for high-pressure discharge lighting schemes.

HPAC systems are active and offline and use a static switch to supply a by-passed supply during normal conditions with a contactor for the non-maintained output. When there is a power failure the contactor connects the non-maintained load to the inverter that continues to supply the load.

The HPAC charger is a sophisticated, temperature compensated charger that optimises battery life and performance. Whilst off-line the HPAC senses the battery constantly to check that all connections are present and correct.

Features
  • Microprocessor controlled display
  • Contactors employed to reduce arcing
  • Voltage-free contacts for remote alarm
  • Two button shutdown system -to prevent inadvertent shut down
  • Dual redundant power supplies - systems can be paralleled for greater security

HPAC Range
Model Description
Input
Phases
Watts VA
Battery Voltage
Inverter Cabinet
Battery Capacity Size
1 hour
Battery Capacity Size
3 hour
HPAC3/1*
Single
2400
192
A
A
C
HPAC4/1*
Single
3200
192
A
A
C+D
HPAC6/1*
Single
4800
264
B
A
H
HPAC8/1*
Single
6400
264
B
A
J
HPAC10/1*
Single
8000
264
B
C+D
2xG
HPAC12/1*
Single
9600
264
B
C+E
2xF
HPAC15/3*
Three
12000
480
C
F
2xF
HPAC20/2*
Three
16000
480
C
F
2xG
HPAC25/3*
Three
20000
480
C
2xF
4xF
HPAC30/3*
Three
24000
480
C
2xF
4xF
HPAC40/3*
Three
32000
480
K
2xF
4xG
HPAC60/3*
Three
48000
480
K
2xG
8xG
As standard the HPAC range covers single and three-phase outputs, from 3kVA to 200kVA. Single or 3-phase inputs with a single-phase output are available up to 25kVA, three-phase inputs with three-phase outputs are available from 10kVA to 200kVA. This is a small selection from our range, please contact our sales for further information.

Cabinet sizes (millimetres)
A : Width 350 x Height 830 x Depth 600
B : Width 450 x Height 830 x Depth 750
C : Width 530 x Height 980 x Depth 750
D : Width 450 x Height 400 x Depth 750
E : Width 550 x Height 400 x Depth 750
F : Width 800 x Height 1820 x Depth 600
G : Width 800 x Height 1820 x Depth 800
H : Width 800 x Height 1320 x Depth 600
J : Width 800 x Height 1820 x Depth 600
K : Width 800 x Height 1650 x Depth 750

Battery Types
The above tables show the cubicle sizes and discharge currents using 10-year design life valve regulated lead acid batteries. Lead acid Plante and Nickel Cadmium battery alternatives are available upon request, vented batteries will be supplied with shelved battery cubicles to facilitate maintenance.

Specifications
Input:
Voltage: Single Phase 230V AC± 10%
Frequency: 50.0Hz ± 5%

Output:
Voltage: 230V AC ± 0.5%
Frequency: 50 HZ± 0.5%
Alternative input and output voltages are available, single and three-phase.

Charger/Rectifier:
Overload capacity
Single phase: 150% continuous
Three phase: 120% continuous
Output ripple content (voltage): 1% maximum
Current walk in: 2 second to maximum
Equalizing / Boost charge: automatic or manual

Inverter:
Static Voltage & frequency
Regulation 0-100% load: ± 0.5%
Transient Recovery: 5%, recovering to 1% within 40 milliseconds
Total harmonic distortion: Better than 3% (Linear load)
Overload capacity: 120% continuous
Frequency stability 50.0 Hz: ± .01% crystal controlled
Load power factor: 0.8 to 1
Efficiency: 90% to 93%
Short circuit proof by electric current limiting and shutdown

Static switch:
Fully automatic transfer and retransfer capability
Total detection and transfer time: 500 µs