- Product Details
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Quick Details
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color:
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As Product
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Power Supply:
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DC/AC 220v/110v
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Voltage Input:
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DC/AC 220v/110v
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Application:
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transformer
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Rated frequency:
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50-60Hz
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Record function:
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Event, fault, ime, operation , etc reocrds
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Measurement function:
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I, U, P, KWH, KVAR, PF, F, etc measuring
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Communication interface:
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Modbus, RS485, Other
Quick Details
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Contact Load:
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High Power
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Place of Origin:
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Switzerland (CH)
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Model Number:
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RET670
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color:
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As Product
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Power Supply:
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DC/AC 220v/110v
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Voltage Input:
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DC/AC 220v/110v
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Application:
-
transformer
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Rated frequency:
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50-60Hz
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Record function:
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Event, fault, ime, operation , etc reocrds
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Measurement function:
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I, U, P, KWH, KVAR, PF, F, etc measuring
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Communication interface:
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Modbus, RS485, Other
Overview
Product Description
Overview
RET670 Transformer Protection Relay
RET670 IEDs provide customized or pre-configured protection solutions for any type of transformer and shunt reactor application.The customized RET670 gives you the freedom to select functionality entirely according to your needs. The pre-configured RET670 variants simplify handling since the basic functionality is included and pre-configured. If needed, you can add optional functions to increase the functionality of the pre-configured RET670 IEDs to meet the specific requirements of your transformer or shunt reactor.
The extremely fast differential protection function with automatic CT ratio matching and vector group compensation, makes RET670 the ideal solution for the most demanding applications. Furthermore, one RET670 IED can be extended to contain two differential protection functions to protect the most advanced system configurations. This transformer protection IED is designed to operate correctly over a wide frequency range in order to accommodate power system frequency variations during disturbances and generator start-up and shut-down. It has very low requirements on the main CTs, and no interposing CTs are required. RET670 features also several functions for local and remote apparatus control on all sides of the transformer. Secure bay and station wide interlocking allows you to avoid dangerous or damaging switchgear operations and to ensure personnel safety.
Technical parameters
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Product Name
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RET670 Transformer Protection Relay
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AC input circuit range
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Phase voltage: 0.00-340V
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Phase current: 0.0-100.0In
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Analog measurement accuracy
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l: ±1%ln;U: ±1 %Un
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Complete operation time
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Current protection: ≤40ms+0.5% of set value
Voltage protection: ≤40ms+0.5% of set value |
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Differential protection: ≤30ms
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Input/output interface resource
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Analog input
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12.. .24 channels
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Binary input
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8..176 channels
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Binary output (Signal)
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12...168 channels
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Binary output (Tripping)
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12...168 channels
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Disturbance recording
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Recording, communication, time synchronization, interface and others 100 times
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Event recording
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1 50 times
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Recording format
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COMTRADE
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Communication interface
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2 Ethernets (EC61850, DNP3.0), serial communication port (IEC103), LON communication port
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Communication protocol Time synchronization
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IEC 60870-5-103, DNP3.0, SPA, LON and IEC 61850-8-1 Dead contact PPM, IRIG-B, SNTP, GPS
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HMI
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Small-size LCD display HMI, medium-size LCD display HMI (IED with control function needs ordering)
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Mounting
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6U height (1/2) 19”case, 223.7W x 265.9H x 201.1L;
6U height (3/4) 19”case, 336.0W x 265.9H x 201.1L; 6U height (1/1) 19”case, 448.1W x 265.9H x 201.1L. |
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Measurement & control
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Sampling circuit range
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Voltage: 10-300V
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Current: 0.10In- 4.0In
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Curent and voltage accuracy
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Error: ±0.5%
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Power ancuracy
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Error: ±1.0%
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Frequenoy accuracy SOE resolution
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Error: +0.002Hz
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≤1ms
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Tele-signalization delay time
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≤1s
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Tele-control response time
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≤1s
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Tele-measuring delay time
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≤3s
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Digital station interace
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Data standard
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IEC61850 (Double network interfaces support PRP communication) IEC103, DNP3.0, SPA, LON
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Signal
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Support GOOSE binary communication at bay level
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Sampling mode Time synchronization
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AC sampling
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IRIG-B, SNTP, PPM, GPS, communication protocol
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Company Introduction
Guodian Nanjing Automation Co., Ltd.(SAC stock code: 600268) is the first high-tech enterprise of the state power system listed in Shanghai Stock Exchange and enjoys the reputation of "No.1 power high-tech share in China". It is now affiliated to China Huadian Corporation. SAC is originally called Nanjing Electric Power Automation Equipment General Factory which was founded in 1940. After the foundation of new China, the company developed the first and second generation of static protective relay products, and has made many top creative achievements in China. The company has won the honors of One of Top 50 Industrial Enterprises in Nanjing, Key High Scientific & Technical Enterprise of State Torch Plan, One of the Top 10 (Chinese) Outstanding & Innovative Enterprises and Backbone Enterprise of State Power Automation Industrial Base. Our products are honored as Chinese Famous Brand.
As one of the five listed companies of China Huadian Corporation and the main part of the engineering technology business, SAC has been dedicating to its three pillar businesses: power automation,new energy, energy saving & emission reduction and intelligent primary equipment.
In China, every four efficient substations use products from Guodian Nanzi for relay protection.
Certificate
Packing & Delivery
FAQ
Q1. Relay does not trip?
A:Put the correspongding protection in the setting table to check whether the blocking conditions are met.
Q2. No communication with the RS485 port on the back of the device?
A: Change the polarity wiring, reset the communication parameters or protocol.
Q3. Voltage display is abnormal?
A: Set the fixed value according to the actual voltage connection mode
Q4. Power transmission circuit breaker tripping?
A: Put in the second harmonic blocking function
Q5. Can you offer Modbus protocol/register map?
A: Yes, we have and welcome contact us.
Q6. What about the lead time and shipment?
A: The lead time depends on the quantities ordered, normally within 7-20 days after receiving the payment.
For shipping, we often use DHL, FedEx, UPS, and TNT.
Q7. What's the warranty time?
A: 12 months from shipping date.
Q8: What is your payment terms?
A: We accept pay via Bank Transfer, Paypal, Western Union and Trade Assurance.
Q9: Can I customized LOGO?
A: Please inform us formally before our production and confirm the design firstly based on our sample. We have professional R&D
team to support best service, and give you best suggestions.
Q10: Why choose us?
A: We serve our customers with our expertise,enthusiasm and customer-oriented attitude.
We always put employees and customers at first and try to improve the lives of the people we employ and exceed customers'expectation. Mutual benefit and shared growth is what we want to achieve.
A:Put the correspongding protection in the setting table to check whether the blocking conditions are met.
Q2. No communication with the RS485 port on the back of the device?
A: Change the polarity wiring, reset the communication parameters or protocol.
Q3. Voltage display is abnormal?
A: Set the fixed value according to the actual voltage connection mode
Q4. Power transmission circuit breaker tripping?
A: Put in the second harmonic blocking function
Q5. Can you offer Modbus protocol/register map?
A: Yes, we have and welcome contact us.
Q6. What about the lead time and shipment?
A: The lead time depends on the quantities ordered, normally within 7-20 days after receiving the payment.
For shipping, we often use DHL, FedEx, UPS, and TNT.
Q7. What's the warranty time?
A: 12 months from shipping date.
Q8: What is your payment terms?
A: We accept pay via Bank Transfer, Paypal, Western Union and Trade Assurance.
Q9: Can I customized LOGO?
A: Please inform us formally before our production and confirm the design firstly based on our sample. We have professional R&D
team to support best service, and give you best suggestions.
Q10: Why choose us?
A: We serve our customers with our expertise,enthusiasm and customer-oriented attitude.
We always put employees and customers at first and try to improve the lives of the people we employ and exceed customers'expectation. Mutual benefit and shared growth is what we want to achieve.
Contact us
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