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summary
1.1 Scope of application
PS 640UX series protection, measurement and control device is developed by Guodian Nanjing Automation Co., Ltd. for power, petrochemical, steel, metallurgy and other industries
The protection, measurement and control integrated device of the generator is applicable to the local power and
Industrial systems.
The PS 640UX series protection, measurement and control device is based on the ZYNQ platform independently developed by Guodian Nanzi, which adopts a number of innovative technologies, integrating protection
Control, measurement, communication and monitoring functions are integrated, resources are abundant and well configured, operation and maintenance are flexible and convenient, stable, reliable and safe
The technical performance indicators are at the domestic * * * level, providing a solid foundation for the safe, stable and economic operation of the industrial power system.
1.2 Main features
Rich resources and complete functions: high-precision real-time clock system, supporting RS485 IRIG-B or SNTP time synchronization; Flexible networking mode
And protocol configuration; It can provide complete protection, measurement and control functions.
Mature technology and high reliability: apply the high voltage protection technology and idea of Guodian Nanzi International * * * to the low voltage protection, and the protection principle
Advanced and reliable, more professional; The EMC level of product hardware meets the national standard.
Flexible configuration and strong pertinence: the device plug-in configuration is simple and easy to use, and the outlet can be flexibly configured, which facilitates various application requirements on the site; to the full
Consider the characteristics of iron and steel metallurgical enterprises.
Powerful communication and integrated recording: provide dual Ethernet communication ports and dual RS-485 communication ports, support IEC60870-5-103 communication protocol and
MODBUS communication protocol; It can query at least 100 trip records, 200 self inspection records, and the last 200 switching value and state displacement records,
Integrated recording device operation information; It can record 8~100 reports and displacement mark sets.
1.3 Main models and functions
This series of products includes the following devices:
1.3.1 Line protection measurement and control device
PSL 641UX line protection and measurement and control device, with overcurrent protection as the main protection, is applicable to the protection and measurement and control of transmission or distribution lines.
1.3.2 Transformer protection and monitoring device
a) PST 641UX transformer differential protection device is applicable to transformers of 6.3 MVA and above capacity or important transformers of industrial enterprises;
b) PST 642UX transformer protection, measurement and control device is applicable to transformers of 6.3 MVA and above capacity or important transformers of industrial enterprises
Backup protection;
c) PST 645UX transformer protection and monitoring device, with overcurrent protection as the main protection, is applicable to the substation/grounding transformer/station transformer.
1.3.3 Capacitor protection, measurement and control device
PSC 641UX capacitor protection and measurement and control device is applicable to the protection and measurement and control of parallel capacitor banks in the substation, with differential pressure (or differential current)
Unbalanced voltage (or current) input.
1.3.4 Reactor protection, measurement and control device
PST 648UX reactor protection and measurement and control device is applicable to the protection and measurement and control of series parallel reactors with voltage levels of 35kV and below.
1.3.5 Automatic switching device of standby power supply
PSP 641UX automatic switching device for standby power supply, which has 9 typical connection modes for standby switching, and is applicable to various wiring methods of different voltage levels
Automatic switching of standby power supply.
1.3.6 Motor protection, measurement and control device
a) PSM 641UX motor protection, measurement and control device, including differential function, is suitable for large asynchronous or synchronous power supply with capacity of 2MW and above
Motivation protection;
b) PSM 642UX motor protection, measurement and control device, without differential function, is applicable to 3~10kV asynchronous motor protection.
1.3.7 Bus voltage protection measurement and control device
PSV 641UX bus voltage protection measurement and control device, with voltage parallel, voltage protection and non electric quantity protection as the basic configuration, is suitable for two sections
Protection, measurement and monitoring of bus voltage.
1.5 Module description
1.5.1 AC module
AC module includes two parts: voltage input and current input. Different types of devices have different numbers of voltage and current input elements.
The voltage input element is composed of voltage converter, and the rated input is 100V.
Current input elements have the following specifications:
a) Protective current converter: the rated input current is high or 1A, and the default is high. If 1A is used, it should be explained when ordering;
b) Zero sequence current converter: rated input current is 30A;
c) Measuring current converter: the rated input current is high or 1A, and the default is high. If 1A is used, it should be stated when ordering.
1.5.2 CPU module
The module provides Ethernet RJ45 interface terminal for Ethernet access. The device and HUB shall be connected through STP5 shielded twisted pair cable
The two ends of the communication line are connected in the following color order:
If both ends of shielded twisted pair use RJ45 connector with metal shield (TIA/EIA-568A) as the connector, the connector must use special RJ45
The crimping pliers shall be made and the shielding layer of the twisted pair and RJ45 connector shall be reliably connected. At the same time, the AC power protection ground of HUB shall be the same as that of
The grounding connection makes the shielding layer of the twisted pair and RJ45 connector reliably grounded to ensure that the shielding layer works.
In addition, CPU module can select dual Ethernet, dual Ethernet dual RS485, dual Ethernet dual RS485 according to different communication modes
Optional module for single 232
1.5.3 DIO module
The functions of DIO modules vary according to different devices, including different functions and configurations. See specific device models for details.
The intelligent DIO module that can output two 4-20mA current loops can be optionally installed,
(1) Current loop output port 1: AO1, AG1-
(2) Current loop output port 2: AO2, AG2-
The models of devices that can be installed with this DIO module are as follows: PSL641UX PSC641UX、PSM641UX、PSM642UX、PSP641UX、
PST642UX、PST645UX、PST648UX、PSV641UX。 When this DIO module is selected, the internal control word KG1.12 bit (smart
Energy plate input) is set to 1.
The output ratio of the current loop is 0~1.2, the lower limit of the current loop output is 4 mA, and the upper limit of the current loop output is 24 mA. DA drive channel is measuring module
The analog channel can measure voltage, current, active or reactive power, and the corresponding measurement divided by the rated value of the channel is the driving current loop of the measurement channel
The standard range of the output ratio is 0~1, preferably 1.2, and the standard range of the corresponding current loop output current is 4~20mA
It can reach 24mA.
1.5.4 TRIP module
This module includes two functions: logic circuit and operation circuit. This module is a universal module for series protection. Yes is determined in this device
Refers to the contact of spare output, which can be used as an extension function as required.
Device alarm signals are divided into local alarm and central alarm signals. If the CPU self checks and finds that the device has serious abnormalities,
Then immediately drive the relay to cut off the 24V tripping power supply of the CPU module, and output while lighting the local alarm signal lamp on the device panel
A pair of contacts to the central signal is called local alarm. At this time, the protection function of the device has actually exited operation, so the operation manual of PS 640UX series protection, measurement and control device must be as soon as possible
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Arrange maintenance and check the device completely!
The central alarm signal mainly reflects the abnormal operating conditions of the primary equipment corresponding to the device (such as TV disconnection), and is used to remind the operator
Member, called calling. In this case, the device outputs a pair of contacts to the central signal while turning on the local alarm signal light on the device panel,
However, the 24V power supply is not cut off. Local and central signals are respectively given by the contact of the relay.
Setting mode of tripping and closing holding current: set to adaptive 1A~high holding current, and then R9
R10, KK1 connectivity VD1、VD2、VD3、VD4， Connected with relay HBJ are R5, R6, KK2, VD5, VD6
VD7、VD8； If the actual holding current is less than 1A, it is necessary to disconnect the tripping circuit from KK1 in series with R10, and connect the closing circuit with R6
The series KK2 can be disconnected.
If the operation circuit provided by this module is not used, but other external operation boxes are used, some terminals of the operation circuit of this module must be connected with
The external operation box is connected to ensure that the device can correctly judge the circuit breaker position and other signals. X4:7 Connected to the positive control power supply of the external operation box,
X4:16 is connected to the negative control power supply of the external operation box, and X4:14 is connected to the sub position auxiliary contact,
X4:8 is connected to the closing auxiliary contact of the circuit breaker,
If necessary, X4:9 is connected to the manual tripping input terminal of the external operation box.
When the anti tripping circuit of this module is required, X4:15 is connected to the negative control power supply of the external operation box. When the anti tripping circuit of this module is not required,
X4:15 Just keep floating.
In addition, the TRIP module can be optionally installed in the AC mode, that is, the control power supply of the operating circuit is AC 220V,
All inputs are defaulted to use DC 220V power supply. When it is necessary to cancel the anti tripping function of the AC TRIP module, disconnect the KKL1
Yes.
