ZXDU68 M501 Product Description

ZXDU68 M501 Product Description


ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. I


Version Date Author Approved By Remarks

V1.0 2010-04-08 Not open to the Third Party

© 2009 ZTE Corporation. All rights reserved.

ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE.

Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.


II © 2008 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary

TABLE OF CONTENTS

1 Overview ..................................................................................................................... 1

2 Highlight Features ...................................................................................................... 1

3 System Analysis ......................................................................................................... 1 3.1 Product Physical Structure .......................................................................................... 1 3.2 System Principle .......................................................................................................... 2 3.3 AC Distribution Unit ..................................................................................................... 2 3.4 Rectifier Description ..................................................................................................... 3 3.4.1 Rectifier Appearance ................................................................................................... 3 3.4.2 Performance Indices .................................................................................................... 3 3.5 DC Distribution Unit ..................................................................................................... 4 3.6 Monitoring Unit ............................................................................................................. 5 3.6.1 Functions of Monitoring Unit ........................................................................................ 5

4 Technical Specifications ........................................................................................... 7

5 Network Monitoring .................................................................................................... 8 5.1 RS-232 Serial Port Mode ............................................................................................. 8 5.2 TCP/IP Mode ............................................................................................................... 8


ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. III

FIGURES

Figure 1 Structure of the Whole Equipment. ................................................................................ 2 Figure 2 System Principle ............................................................................................................ 2 Figure 3 AC Distribution Unit........................................................................................................ 3 Figure 4 Appearance of ZXD2400(V4.1) Rectifier ....................................................................... 3 Figure 5 DC Distribution Unit ....................................................................................................... 4 Figure 6 Structure of Monitoring Unit ........................................................................................... 5 Figure 7 Principle of Monitoring Unit ............................................................................................ 5 Figure 8 Connections of Serial Port Monitoring ........................................................................... 8

TABLES

Table 1 Performance Parameters of the ZXD2400 (V4.1) ......................................................... 3 Table 2 Data Collection and Measurement Accuracy ................................................................ 6 Table 3 Technical Parameter List ............................................................................................... 7


ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. 1

1 Overview The ZXDU68 M501 is a 600A DC power supply system for telecom equipment. As an intelligent power supply system, the ZXDU68 M501 is integrated with industry-leading rectifier frequency conversion technology. It can be widely used in the base station or core station of telecom network.

2 Highlight Features The highlight features of the ZXDU68 M501 are as follows: 1 Advanced modularized design and automatic current equalizing technology

enabling N+1 backup mode of the system capacity and convenient expansion; 2 Fully intelligent design to support remote monitor and control functions for real-time

network monitoring; 3 Providing intelligent battery management to lengthen battery life; 4 Two-stage low voltage disconnecting function to lengthen the battery backup time

for important load. 5 Multi-level lightning protection ensuring high reliability of the overall equipment; 6 Integrated AC&DC power distribution in the same cabinet to save extra distribution

panels; DC distribution panel can be customized according the application. 7 Front access design for the convenience of maintenance; 8 High reliability, with MTBF ≥ 220,000 h.

3 System Analysis

3.1 Product Physical Structure Open the front door to reveal the structure of the whole equipment, as shown in the following figure 1.


2 © 2008 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary

1. DC power distribution 2. Monitoring unit 3. Rectifier

4. AC power distribution 5. Front door 6. File holder

7. Fuse extractor base

Figure 1 Structure of the Whole Equipment.

3.2 System Principle The system principle of the combined power supply is shown in the following figure 2.

Figure 2 System Principle

The composition and functions of the combined power supply are described as below: 1 AC distribution unit: Accessing, protecting and distributing AC power 2 Rectifier group: Implementing AC-DC conversion 3 DC distribution unit: Implementing output of DC power supply, battery connection

and load protection.

3.3 AC Distribution Unit Its principle is shown in the following figure 3.



The system supports two mains input (or one mains input and one diesel generator input), with reliable mutual-locking relation. Lightning-protection measures also available.

Figure 3 AC Distribution Unit

3.4 Rectifier Description The structure, performance and interface definitions of the ZXD2400 (V4.1) 50A switch-mode rectifier used by this system will be introduced in this section.

The nominal output capacity of a single rectifier is 50 A. For the standard system configuration, maximum 12 rectifiers can be configured.

3.4.1 Rectifier Appearance

The ZXD2400 (V4.1) features compact size and small weight. Its appearance is shown in the following.

Figure 4 Appearance of ZXD2400(V4.1) Rectifier

3.4.2 Performance Indices

The performance parameters of the rectifier are listed in the following. Table 1 Performance Parameters of the ZXD2400 (V4.1)

Technical Feature Parameter




AC input

Input mode 1-phase 3-wire mode (L/N/PE) Input voltage Nominal voltage: 220 VAC;

Range: 80 VAC ~ 300 VAC. Input frequency Nominal frequency: 50 Hz;

Range: 45 Hz ~ 65 Hz Input current 16 Amax Efficiency ≥ 94%(rated input; full load) Power factor ≥ 0.99

DC output

Output power Nominal output: 2400 W; maximum output: 3195 W

Output voltage Nominal output: 48 VDC Adjustable range: 42 VDC ~ 58 VDC continuous adjustable

Current limiting threshold

(53 ± 1) A for input voltage 176 VAC ~ 300 VAC (30 ± 2) A for input voltage 110 VAC ~ 176 VAC (15± 2) A for input voltage 80 VAC ~ 110 VAC.

Voltage stabilizing accuracy

≤ ±0.5%

Current equalizing capability

A difference below 2.5 A between the maximum and the minimum values.

Mechanical parameters

Dimensions H×W×D: 134mm× 87 mm × 290 mm (excluding integrated socket)

Weight 3.8 kg

3.5 DC Distribution Unit Its principle is shown in the following.

Figure 5 DC Distribution Unit

It provides short-circuit protection for the battery connection and load output, to provide action organization for the battery discharging protection upon mains failure.



For the DC distribution unit, the battery group is both input and output.

When the rectifier group charges the battery, the battery is the output unit, equivalent to the DC load.

When the battery powers the load due to AC power failure, the battery is the input unit, equivalent to the DC power.

3.6 Monitoring Unit The monitoring unit of the ZXDU68 M501 is introduced in this section. 1 Structure: composition of the monitoring unit and board distribution. 2 Function: the monitoring mode, measurement quantity and measurement accuracy

of the monitoring unit. 3 Menu: the menu structure and contents of the monitoring unit.

Figure 6 Structure of Monitoring Unit

3.6.1 Functions of Monitoring Unit

The principle of the monitoring unit is shown in Figure 7.

Figure 7 Principle of Monitoring Unit

Function Description of Monitoring Unit

The functions of the monitoring unit are described as follows:



1 Man-machine interaction

The system provides graphic MMI to facilitate operation. You can set the running parameters and query the running data. When anything abnormal happens, alarm will be reported automatically and the existing faults will be recorded for saving. 2 Communication

The monitoring unit provides RS232 interface and can implement remote monitoring through Modem or in other modes. It reports data to the remote control console, receives control instructions and executes them. 3 Data collecting and processing

The monitoring unit collects power distribution and environment data to judge power running status and identifies abnormal data. 4 Control

Based on your control commands, it can control ON/OFF of the rectifier and equalized recharging/float recharging status of the system, as well as to control the rectifier output voltage according to your demand.

Data Collection and Measurement Accuracy

The data collected by the monitoring unit and the measurement accuracy are listed in Table 2 . Table 2 Data Collection and Measurement Accuracy

Data Source Item Accuracy AC distribution unit

AC phase-U/V/W voltage ±1% AC phase-U current ±2% Status of AC input air switch 100% Status of AC standby output air switch 100% Working status of AC lightning arrester 100%

DC distribution unit

DC output voltage ±0.5% Battery voltage ±0.5% Batter current ±1% Total load current ±1% Status of battery fuse 100% Status of load fuse or switch 100% Battery temperature ±5℃ Status of first-stage power shut-down and second-stage power shutdown DC circuit breakers

100%

Status of DC lightning arrester 100% Rectifier Output current ±1%

In-position signal 100% Alarm information 100% AC input alarm signal 100%



Data Source Item Accuracy Environment Parameters

Environment temperature ±5℃ Environment humidity ±10% Flood/infrared/entrance control/smoke/glass broken signal

100%

Input mains contact

Input main contact signal 100%

4 Technical Specifications The technical parameters of the system are listed in Table 3 . Table 3 Technical Parameter List


AC input

Input mode 3-phase or Single-phase Input voltage Nominal voltage: 110 Vac(L-N)

Range: 80Vac ~ 176 Vac(L-N) Input frequency Nominal frequency: 50 Hz;

Range: 45 Hz ~ 65 Hz Input current 100 A max Efficiency ≥ 94%(rated input; full load) Power factor ≥ 0.99(with 100% load)

Surge Protection

Class C surge protection ≤ 40 kA (8/20μs)

Class D surge protection ≤ 20 kA (8/20μs)

Let through voltage ≤600V

Response time ≤25 ns

DC output

Output current 600 Amax Output voltage Nominal Voltage: 48V

Range: 42 VDC ~ 58 VDC continuous adjustable Noise Peak-peak value: ≤ 200 mV (0 MHz ~ 20 MHz)

Weighted noise: < 2 mV System audible noise: <55 dB (A)

DC lightning discharge current

≤5KA

Environmental Conditions

Temperature -5°C ~ +45°C Relative humidity 10% ~ 95%

MTBF ≥2.2*105

Safety Approval UL certificate Dimensions H × W × D: 2000 mm × 600 mm × 600 mm



5 Network Monitoring The combined power supply supports network monitoring in several modes, for background monitoring. The common networking modes are introduced below.

5.1 RS-232 Serial Port Mode The monitoring unit and the background are connected directly through the serial port. This is the most direct and convenient way of monitoring, but it is largely restricted by practical conditions. Usually, it is required that the distance between the background monitoring host and the power supply monitored should be within 15 m. The RS232 serial port mode is shown in the following.

Figure 8 Connections of Serial Port Monitoring

5.2 TCP/IP Mode IP mode is a monitoring mode based on Ethernet. The network card converts the signal from power system into IP packages, and these packages are transferred to central supervisor through Ethernet.

This is a recommended monitoring mode when the Ethernet is available.

Central Supervisor

RS232

Power

Ethernet

Network

Card

……

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ZXDU68 M501 Product Description