Gravitas X75
Hot-Swappable Power Modules
>> Configuration / Ordering Guide
>> Pictures and Diagrams
<< Back to Unipower Telecom Home
KEY FEATURES
- 1U Base System
- 1U Expander Shelf
- Remote Monitoring & Control
- Fully Integrated System
- -48, +24, or +12 VDC Rectifiers
- Hot-Swap Rectifier Modules
- N+1 Redundant Operation
- Up to 60.6A at -54.4VDC
- Up to 75A at +27.2VDC
- Up to 75A at +13.6VDC
- Wide Range AC Input
- Power Factor Corrected
- Class B EMI Input Filter
- Up to 10 DC Load Circuits
- Circuit Breakers or GMT Fuses
- Battery String Breaker
- LV Battery Disconnect
- Four Form C Alarms
- Quick and Easy Installation
- Universal 19/23-Inch Brackets
|
DESCRIPTION
Gravitas X75 is an ultra-compact, integrated DC power system. The base system is a 1U shelf holding up to three hot-swap rectifier modules. This sytem produces up to 1650 watts output at -54.4, +27.2 or +13.6 VDC. It can also be operated as a 2+1 redundant system with up to 1100 watts output. The expanded system consists of a base shelf plus an expander shelf with a 2U total height. This system holds up to six rectifier modules with up to 3300 watts output; it can be operated as a 5+1 redundant system with up to 2750 watts output. Each rectifier module is cooled by a fan that operates at a speed which is a function of load and temperature.
There are up to five circuit-breaker protected DC outputs or up to 10 GMT fuse protected outputs on the base system. A battery string breaker and a low-voltage battery disconnect are standard features. The expander shelf comes with a ribbon cable and connectors to link the signals between the two units at their rear panels. It also comes with bus bar links to parallel the rectifier output bus bars.
The base and expander shelves can also be operated as a battery backup, single feed power system (without load circuit breakers or fuses).
The remote access controller has LED visual indicators and Form C relay alarms. It is programmed by means of a remote PC web page display with communication by Ethernet LAN. Temperature compensated rectifier output is provided by means of an accessory TC probe. The X75 can be quickly installed by a qualified technician. |
GRAVITAS X75 SYSTEM CAPABILITY
| |
|
|
|
|
|
|
|
|
|
| System Model # |
X75-48S |
X75-48S
+
ES75 |
X75-24S |
X75-24S
+
ES75 |
X75-12S |
X75-12S
+
ES75 |
| Rectifier Model |
RSG7000-Z |
RSG7000-Z |
RSG5000-Z |
RSG5000-Z |
RSG3000-Z |
RSG3000-Z |
| System Voltage |
-54.4VDC |
-54.4VDC |
+27.2VDC |
+27.2VDC |
+13.6VDC |
+13.6VDC |
Rated Load, Non-Redundant
# of Modules |
30.3A
3 |
60.5A
6 |
55.2A
3 |
75.0A
5 |
75.0A
3 |
---
--- |
Rated Load, Redundant
# of Modules
Redundancy
|
20.2A
3
2+1 |
50.5A
6
5+1 |
36.8A
3
2+1 |
75.0A
6
5+1 |
66.0A
3
2+1 |
75.0A
4
3+1 |
| Input Range, VAC |
85-264 |
85-264 |
85-264 |
85-264 |
85-264 |
85-264 |
Battery String Breakers
Low Voltage Disconnect |
1
Standard |
1
Standard |
1
Standard |
1
Standard |
1
Standard |
1
Standard |
Load Protection
1A-30A Circuit Breakers or
0.5A-12A GMT Fuses |
5
10
|
5
10
|
5
10
|
5
10
|
5
10
|
5
10
|
Control Features
Alarm Outputs, Form C
Temp. Compensation Probe
Ethernet LAN Communication
Ethernet LAN + SNMP |
4
Accessory
Standard
Option
|
4
Accessory
Standard
Option
|
4
Accessory
Standard
Option
|
4
Accessory
Standard
Option
|
4
Accessory
Standard
Option
|
4
Accessory
Standard
Option
|
Rack Height
Rack Mounting, Inches |
1U
19/23 |
2U
19/23 |
1U
19/23 |
2U
19/23 |
1U
19/23 |
2U
19/23 |
REMOTE ACCESS CONTROLLER (BASE SHELF)
This controller controls the system rectifier, monitors the system parameters and has alarms for system failures. There are six red LED alarms which indicate a failure: Major Alarm, Minor Alarm, Rectifier Alarm, AC Input Alarm, Overtemperature Alarm and Overvoltage Alarm. A green LED indicates that the controller is operating. Four Form C relay outputs give alarms: Major Alarm, Minor Alarm, Rectifier Alarm, and AC Input Alarm. The controller is programmed by means of a remote PC webpage display. Communication is by Ethernet LAN with an SNMP (Simple Network Management Protocol) option. It also has provision for temperature compensated charging of an external battery using a TC probe which can be supplied as an accessory item.
EXPANDER SYSTEM
This expander shelf allows up to 3 additional rectifier modules to be connected to the rectifier bus for additional power capability. The expander rectifiers are paralleled to the system bus via bus bar and expansion interface connections.
RSG RECTIFIER MODULE SPECIFICATIONS
INPUT
- Voltage Range: 85-264 VAC
- Power Factor: 0.99
- Max. Total Harmonic Distortion: 5%
- Frequency: 47-63 Hz
- Inrush Current Limiting: 30A Peak
- EMI Filter, Conducted: FCC20780 Part 15J Curve B, EN55022 Curve B
- Max. Input Current
- 230VAC: 2.7A
- 120VAC: 5.2A
- Input Immunity, Conducted
- Fast Transients, Line-Line: ±2kV (EN61000-4-4 Level 3)
- Surges, Line-Line: ±2kV (EN61000-4-5 Level 3)
- Surges, Line-Ground: ±4kV (EN61000-4-5 Level 4)
OUTPUT
- Current & Voltage
- 48V Nominal: 10.1@54.4VDC
- 24V Nominal: 18.4@27.2VDC
- 12V Nominal: 33.0@13.6VDC
- Voltage Adjustment Range
- 48V Nominal: 45-58 VDC
- 24V Nominal: 22-29 VDC
- 12V Nominal: 11-14.5 VDC
- Output Power, Rated
- 54.4V: 550W
- 27.2V: 500W
- 13.6V: 450W
|
- Max. Total Regulation: 2%
- Holdup Time: 10ms
- Overvoltage Protection
- 48V Nominal: 58V
- 24V Nominal: 29V
- 12V Nominal: 14.5V
- Filtering: 1.0% (Wideband Noise, 20MHz BW, P-P)
- Voice Band Noise: < 32dBmC
- Current Limit: 105% Rated Current
- Efficiency: 85-90%
SAFETY STANDARDS
- UL 60950, CSA22.2-60950, EN60950
STATUS INDICATOR
ENVIRONMENTAL
- Operating Temp. Range: -20°C to +70°C
- Output Current Derating: 2.5%/°C, 50°C to 70°C
- Storage Temp. Range: -40°C to +85°C
- Humidity: 0% to 95%, Non-Condensing
- ESD: Bellcore GR-1089-Core and EN61000-4-2
- Cooling: Internal Fan
|
|
Unipower Telecom Home
Bomara Homepage