Power System of High Performance and High Reliability
GPH48300A Integrated Power System
Input:90~280Vac; Output: -42~-58Vdc；
The GPH48300A integrated power system consists of power distribution, integrated cabinet, monitoring module and rectifier module. The whole system is of high reliability and performance, and can be operated through PC software.
Application
■ Small scale program controlled exchangers
■ Access network
■ Transmission equipment
■ Mobile communication
■ Satellite communication ground station
■ Microwave communication
Main features
Adoption of active power factor compensation technology with
factor ＞0.99
Wide operating range of AC input voltage: 90～280Vac
Operating temperature range: -25°C～+55°C
Zero current/voltage switching tech with high efficiency ≥92%
Lifecycle of battery prolonged by perfect battery management,
including electrical charge/discharge management, battery
temperature compensation, battery capacity test, low voltage
protection etc.
Hot-swappable
Input over/under voltage protection
Output over voltage protection
Output over current protection
Output short circuit protection
Auto current sharing, parallel output
Integrated mounting
Perfect SPD 80KA (8/20 US)
1. General Introduction
1.1 GPH48300A System Configuration
GPH48300A consists of integrated cabinet, power distribution,
rectifier module (from 1 set, up to 7 sets) and 1 monitoring
module. The configuration is optional, as following table:
Configuration | Rectifier Module | Monitoring Module | Power Distribution | Remark |
Standard | GPR4850D | GPM48P | AC power distribution: single phase input, 1-pole AC breaker @ general line (63A/3P); DC power distribution: battery MCB 200A×2; LVLD: 63A×4;32A×4(MCB capacity optional) LVBD: 32A×2; 16A×2 (MCB capacity optional) | For details, please refer to the specifications of modules. |
1.2 GPH48300A Operating Principle
AC power is first input AC-INPUT MCB and then feed into the
rectifier module after lightning proof and filtering. AC-INPUT acts
as protection to over load and short circuit to AC power. LVLD and
LVBD are connected with 2 load power down contactors KM1, KM2. The
user’s battery is connected to the DC output side through MCB BAT
and KM2, and the circuit breaker provides disconnection control,
over-load and short-circuit protection to the battery.
Under normal conditions, every parameter of rectifier modules and
power distribution unit are all under control of the monitoring
module, operating according to the pre-set parameter or user’s
commands. If AC mains faults, the battery will power to the system.
With the battery discharge, the terminal voltage of the battery
starts to descend. When battery voltage is under -47V±0.5V, the
monitoring module sends DC under voltage alarm signal and when
battery voltage is under -46.0V±0.5V (adjustable), the KM1cuts off
non-priority loads and retaining power to priority loads. If
battery voltage drops to -43.0V±0.5V (adjustable), the KM2 will cut
off output of priority loads and then the power system will stop
working. If the external AC mains recovers, the system will
normally work again. (All above monitoring data are system default
values and can be reset by user).
Except for battery over-discharge protection, battery or load
over-temperature protection is prohibitive under default, users can
send command to activate or inactivate according to the
demanding.
1.3 GPH48300A Properties
Input |
Parameter | Min. | Typical | Max. | Unit | Remark |
Input voltage range | 90 | 220 | 280 | Vac | |
Input frequency | 45 | 50 | 65 | Hz | |
Input current | | 81 | | A |
|
Output |
Parameter | Min. | Typical | Max. | Unit | Remark |
Output voltage range | -42 | -53.5 | -58 | Vdc | |
Output current range | 0 | | 300 | A | 176~280VAC |
0 | | 150 | A | 90~176VAC |
Ripple (Vp-p) | | | 200 | mv | At rated input/output, apply 0.1uF film capacitor and 10uF HF
electrolyte capacitor, oscilloscope band width of 20MHz. |
Output efficiency | 90 | 92 | | % | 220Vac input |
83 | 85 | | % | 110Vac input |
Regulation | | | ±1 | % | |
Load regulation | | | ±1 | % | |
Line regulation | | | ±1 | % | |
Insulation rating |
Parameter | Min. | Typical | Max. | Unit | Remark |
Input-chassis | | 2121 | | Vdc | |
Input - output | | 2121 | | Vdc | |
Output - chassis | | 750 | | Vdc | |
Insulation resistance | At normal atmospheric pressure, relative humidity: 90%, testing
voltage: 500vdc, insulation of input-output, input-ground,
output-ground shall not be less than 10MΩ |
Ambient requirements |
Parameters | Min. | Typical | Max. | Unit | Remark |
Operating temp | -25 | | 55 | °C | When ≥55°C, power derating output; +55~+65°C, with temperature
going up, linear derating 2.0%/°C. |
Extension operating temp | -40 | | 65 | °C | -40°C, power can start, index allowing degradation. |
Storage tempStorage temperature | -40 | | 80 | °C | |
Humidity | 10 | | 90 | % | Relative humidity, no condensing |
Atmospheric pressure | 70 | | 106 | KPa | |
Altitude | 0 | | 3000 | m | |
Cooling method | Forced cooling with fan |
Ingress protection | The unit can operate normally when the diameter of dust particle is
more than 5µm, with density ≤3*104 /m3. The dust shall not be
conducting, electromagnetic or corrosive. |
Notes: (1) 55~65°C, module power derates, derating method is auto
derating; 65°C, 176~280Vac, long term regulate output at least 80%
rated power. (2) 55°C, can output max. output power of module, without over
temperature protection, and components can operate normally. (3) Bacause of liquid crystal’s feature, when exceeding liquid
crystal operating temperature range, the screen may be over bright
or turn dark with no display. (4) When lots of dust enter module, short circuit may happen to
circuit inside the module. Under damp weather, after dust absorb
water, insulation inside power decreases, which may lead to
creepage or short circuit inside module. Therefore, in places with
lots of dust, please take dust proof measure and clear dust-proof
mesh and dust inside module. If dust is too much, the fan may be
blocked. The module is cooled by fans, not enough air volume may
cause hot inside module can’t be dissipated, then the module will
enter over temperature protection in advance. |
Mechanical specifications |
Dimensions (mm) | 670mm×670mm×1850mm |
Weight (kg) | ≤150.5Kg (Inclusive of module) ≤120Kg (Frame + Distribution, exclusive of module) |
2. Installation Instruction
2.1 Installation Dimension
2.2 System Power Installation
GPH48300A is outdoor power. For installation, please fix it
strictly according to the dimension: 545mm×460mm. Use M10 or M12
screws, complete the installation after tightening the screw.
Note: The cabinet fixing screws should be provided by the user.
3. Electrical Connection
3.1 Electrical Connection Instruction
Chassis connects with external electric through system interface
board. As shown in figure below:
Connector Instruction:
(1)System, Battery Anode Copper Bar
(2)LVLD
(3)AC Input: N: Neutral Wire; L1, L2, L3: Live Wire
(4)DC SPD
(5)B1-, B2-: battery cathode
(6)LVBD
(7)AC SPD
3.2 Process of Electric Connections
Electric connection between main cabinet and external equipment
includes: connection of AC input line, connection of DC output and
battery, connection of communication cables, connection of GND
cables. The main requirements of electrical connection are safety
and reliability. The following are detailed description.
(1) Connection of GND cables
Step 1: connect the ground wire to the grounding screw of the
embedded telecom power system. As shown below:
(2) AC input cable connections
Step 2: connect AC input power cable to AC input MCB (as shown
below). When connecting the cables, please note positions of phase
line and neutral line ( see the labels).
(3)Connection of DC priority load cables
Step 3: load negative cable connection. The loads are divided into
priority loads and non-priority loads. Connect priority loads
cables to LVBD MCBs (as shown below). Select MCB capacity according
to load current.( The load current must be lower than MCB
capacity).
(4)Connection of DC non-priority load cables
Step 4: load negative cable connection. The loads are divided into
priority loads and non-priority loads. Connect non-priority loads
cables to LVLD MCBs (as shown below). Select MCB capacity according
to load current.( The load current must be lower than MCB
capacity).
(5)Connection of load cables and battery cables
Step 5: connect load cables and battery cables anode (+) to the
anode copper bar (as shown below).
(6)Connection of battery cathode cables
Step 6: connect battery cathode cable to battery MCB (as shown
below).
(7) Connection of DC load cables
a. The specifications and model of the load cables shall be
according to the engineering design requirements.
b. Connect one end of positive connection cable to the positive
copper bar;
c. Connect one end of negative connection cable to the “LVLD, LVBD”
at the front of system;
(8) Connection of DC battery cables
Connection terminal of system and battery is MCB, indicated as
BAT1-, BAT2-, used for connecting with battery. The detailed
process of battery connection is as following:
a. Prepare positive connection cables and negative connection
cables (including terminals and polarity identifications ready).
b. Fasten up the battery connection cable
c. Connect one end of positive connection cable to “BAT1+” or
“LOAD+” at the front of system;
d. Connect one end of negative connection cable to the MCB “BAT1-”
or “BAT2-” at the front of system;
(9) Recommended cable specifications
Item | Sign | AWG/ Min. section(#/mm2) | AWG / Max. section(#/mm2) | Temp rating(°C) | Withstand voltage (V) |
Output load wire | LOAD5 to LOAD12 | 10#/6 | 10#/6 | 105 | 600 |
Output load wire | LOAD1 to LOAD4 | 6#/16 | 5#/18 | 105 | 600 |
Input GND wire | PEin | 7#/10 | 6#/16 | 105 | 600 |
Mains neutral wire | Nin | 7#/10 | 6#/16 | 105 | 600 |
Mains live wire | Lin | 7#/10 | 6#/16 | 105 | 600 |
Battery + | (BAT +) | 1#/40 | 1/0#/50 | 105 | 600 |
Battery - | (BAT -) | 1#/40 | 1/0#/50 | 105 | 600 |
(10)Connection of communication cables
Ethernet communication mode:
a. Connect one end of communication cable to LAN at front panel of
GPH48300A.
b. Connect the other end of communication cable to Ethernet port of
host (directly connect to the PC with cross wires).
c. Or connect the system to switch through common direct network
cable. The host communicate with the system through direct network
cable and router.
d. Communication cable making
Direction Definition: Put the side with plastic shell of registered
jack down,and the side with PIN up; put the end with PIN away from
you, and the end with square hole near you (the end for pushing the
network cable in when making network cable). Then define the far
left one as PIN1, and the far right one as PIN8.
For RS232 communication, PIN1 is 232TX(send), PIN4 is
232RX(receive), PIN5 is communication grounding.
For RS485 communication, PIN2 is RS485+, PIN3 is RS485-, other PINs
are suspended.
Ethernet communication cable adopts T568A standard and T568B
stadard.
T568A standard cable connection method is from left to right: green
and white--green--orange and white- -blue--blue and
white--orange--brown and white--brown.
T568B standard cable connection method is from left to right:
orange and white--orange--green and white- -blue--blue and
white--green--brown and white--brown.
When two ends of the Ethernet cable both adopt T568A standard or
T568B standard, it is Ethernet direct cable; When one end adopts
T568A standard while the other end adopts T568B, it is Ethernet
cross cable.
4. Instruction of GPM48P Monitoring Module
4.1 Monitor Module Function
Function | Remark |
Remote monitoring of monitoring module by the host | The host can conduct enquiries, settings and control upon the
monitoring and realize the remote message, remote sense and remote
control. |
Rectifier management by monitoring module | To send controlling orders to or get data from the rectifier module via RS485 communication. |
Battery management | To manage the low voltage, power down, equalizing/float charge,
temperature compensation of the battery. |
Output management by monitoring module | To inspect and control the system |
LED indicator | Signal indication |
6 dry contacts output | Dry contact setting |
COM port signal | |
LCD display | to conduct setting and modification on the menu |
Module hibernate function | W hen system load is light, monitoring module turn off redundant rectifier module to save energy. |
For details, please refer to specifications of “GPM48P”. |
4.2 Monitoring Module Communication Interface Definition
4.3 Monitoring Module Installation
Handles on panel of monitoring module are equipped. When inserting
module into the main cabinet, the operator shall clutch the handle
with one hand while holding it with the other hand. Slowly push the
module into its slot until the connection terminal on back of the
module inserted into corresponding socket of system bar in the main
cabinet.
Finally, finish the installation by firmly fixing the screw on the
panel to the main cabinet. When removing module from the main
cabinet, first screw off the bolt on panel then slowly remove the
module from its slot while clutching the handle.
5. Instruction of GPR4850D Rectifier Module
5.1 Instruction of Rectifier Module Parameters
Item | Unit | Min. | Typical | Max. | Testing conditions |
AC input voltage | Vac | 90 | 220 | 290 | |
AC input voltage frequency | Hz | 45 | 50 | 65 | Rated load |
Input power factor | | 0.99 | | | Rated voltage/rated load |
Output voltage range | Vdc | 44 | 53.5 | 58 | |
Output current | A | 0 | 50 | | 176~290V AC input |
A | 0 | 22 | | 90~175V AC input |
Output voltage regulation | | | | ±1% | |
Peak-peak value Vp-p | mV | | | 200 | Tested with each of 0.1uF ceramic capacitor and 10uF electrolytic capacitor with 20MHz band width. |
Output power | W | 0 | 2900 | | When 176Vac～290Vac input, 2900W output is met with |
W | 0 | 1200 | | 90Vac～175Vac input |
Output efficiency | % | 92 | 93 | | 220V AC input (1. when input voltage is 220Vac, rated output
voltage, 25% above rated load current. 2. up to 94%) |
% | 86 | | | 110V AC input |
Input over voltage protection | Vac | 300 | | | Automatically recoverable |
Input over voltage protection recovery point | Vac | 290 | | | |
Input under voltage protection | Vac | | | 85 | Automatically recoverable |
Input under voltage protection recovery point | Vac | | | 90 | |
Output over voltage protection point | V | 58.5 | 59 | 60.5 | 1. module internal failure will result in over voltage and module
itself locked up 2. when external voltage above over voltage protection point is
added, module works normally. |
Output current limiting protection | A | 54 | | | Automatically recoverable |
Short circuit protection | A | long-term short circuit is available, automatically recoverable |
Over temperature protection | | Automatically recoverable under 65℃ ambient temperature |
The detailed information is listed in GPR4850D rectifier specification |
5.2 Installation of Rectifier Module
Handles on panel of rectifier module are equipped. When inserting
module into the main cabinet, the operator shall clutch the handle
with one hand while holding it with the other hand. Slowly push the
module into its slot until the connection terminal on back of the
module inserted into corresponding socket of system bar in the main
cabinet.
Finally, finish the installation by firmly fixing the screw on the
panel to the main cabinet. When removing module from the main
cabinet, first screw off the bolt on panel then slowly remove the
module from its slot while clutching the handle.
6. System Maintenance
(1) Failure: yellow LED on rectifier module flickers continuously,
communication fails;
Maintenance solution: check the communication network to see
whether the internet connection is loose or internet interface is
damaged or not.
(2) Failure: yellow LED on rectifier lights on;
Maintenance solution: check whether the fan is blocked, load
current exceeds the max. value; AC voltage is too lower, then the
auto rate decrease starts; over temperature pre-alarm starts;
remote shut-down is started on PC software.
(3) Failure: Red LED on rectifier lights on;
Maintenance solution: check whether the voltage is too high/too low
and over/under voltage protection is on; fan is blocked; ambient
temperature is too high; load is short circuit or not.
If above mentioned parts are ok but the red LED is still on, then
there is problem on the module, please return it to factory for
repairing.
(4) Failure: Yellow, red, green LEDs on rectifier are all off;
Maintenance solution: Firstly check whether AC input is available
or not, if not, then check the electrical circuit; if yes, the
module is in malfunction, please return the module to factory for
repairing.
