Datasheet > ESTAsym CPR

ESTAsym CPR

更新时间： 2024-11-03 14:54:59

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
4页	117K
描述
Unbalance Protection Relay

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ESTAsym CPR 数据手册

ESTAsym CPR

www.vishay.com

Vishay ESTA

Unbalance Protection Relay

FEATURES

• Compensation of the natural unbalance (current or

voltage) of the capacitor bank

• Display of the actual unbalance current or unbalance

voltage

• Self monitoring function with own alarm contact

• Separately adjustable thresholds and delay times for

alarm and trip

• Adjustable drop-off-value for alarm / trip

• Separately programmable reset mode for alarm / trip

(automatic or manual reset)

• In manual mode, after power interruption, memory of

switching outputs, original state, and display indications

• Adjustable transformer ratio (voltage / current)

• Thresholds and readings as current or voltage value or as

percentage value related to the nominal input range of

current or voltage channel

• Separate password protection for setup and operator

• Storage of the last five trips and alarms with maximum

value during delay time

• One free programmable output relay (Rel. 3)

• Display flashing as visual indicator under the alarm / trip

condition

APPLICATIONS

• Monitoring unbalance currents of capacitor banks

- Double-star connection

- Bridge connection

• Monitoring unbalance voltages of capacitor banks

QUICK REFERENCE DATA

Type

Unbalance protection relay

Unbalance protection relay for capacitor banks connected in double star or bridge connection

Supply voltages: 40 V_ACto 250 V_AC, 50 Hz to 60 Hz / 40 V_DCto 300 V_DC

1 current input: 20 mA to 5 A

Description

Rated data

Current data

Protecting level

IP50, IP54 by using a gasket; rear: IP20

TECHNICAL DATA

Measuring voltage

0.2 V to 20 V, burden 284 k

AC: max. 1250 VA

DC: 30 V / 5 A, 60 V / 1 A, 110 V / 0.5 A, 220 V / 0.3 A

Relay outputs

Digital input

Interfaces

Blocking alarm / trip via digital input

TTL, rear (optional: RS485, Modbus RTU)

Operation: -20 °C to +70 °C

Storage: -40 °C to +85 °C

Temperature

Humidity

Overvoltage class standards

Standards

Conformity and listing

Terminals

Casing front

0 % to 95 %, without moisture condensation

II, pollution degree 3 (IEC 60664-1)

IEC 60664-1, IEC 61010-1, IEC 61326

Screw type, maximum 4 mm²

Instrument casing plastic (UL 94 V-0), rear: metal

0.65 kg

Weight

Note

Complete mounting instructions / manual available at www.vishay.com/doc?13172

•

Revision: 27-Mar-17

Document Number: 13176

For technical questions, contact: esta@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

12 3 4

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与ESTAsym CPR相关器件

型号	品牌	获取价格	描述	数据表
ESTAsym MD	VISHAY	获取价格	Capacitor Protection Relay
ESTAsym W	VISHAY	获取价格	Unbalance Monitoring
EST-B-1-A-MED	DIALIGHT	获取价格	Single Color LED Display Cluster, Amber
EST-B-1-A-SPOT	DIALIGHT	获取价格	Single Color LED Display Cluster, Amber
EST-B-1-B-OVAL	DIALIGHT	获取价格	Single Color LED Display Cluster, Blue
EST-B-1-B-SPOT	DIALIGHT	获取价格	Single Color LED Display Cluster, Blue
EST-B-1-G-OVAL	DIALIGHT	获取价格	Single Color LED Display Cluster, Green
EST-B-1-R-OVAL	DIALIGHT	获取价格	Single Color LED Display Cluster, Red
EST-B-1-R-SPOT	DIALIGHT	获取价格	Single Color LED Display Cluster, Red
EST-B-1-R-WIDE	DIALIGHT	获取价格	Single Color LED Display Cluster, Red

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