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Related Manuals for Toshiba RC820-HP-Y
Summary of Contents for Toshiba RC820-HP-Y
- Page 1 TOSHIBA RC820 (2E RELAY) INSTRUCTION MANUAL RELAY MODELS AUXILIARY MODULES RC-81A (GROUND FAULT) RC-81 B (PHASE REVERSAL) RC-81C (GROUND FAULT/PHASE REVERSAL) TOSHIBA CORPORATION Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com...
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Page 2: Table Of Contents
T O S H I B A C 0 M T E N T S Page INITIAL IMSPECTION APPLICATIONS ------------------------- RATINGS AND PERFORXAPJCZS PRECAUTIONS IN APPLICATIONS INSTALLATION I. 0 CIRCUIT CONSTRUCTIONS AND ADJUSTEIENTS ----------------------- INSPECTION AND MAINTEI4ANCE TROUBLE-SHOOTING ---------------------- INSTALLATION TEST PROCEDURE --------------------------- Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com... -
Page 3: Outj,Ini
OUTLINE The 2E Relay (static relay for three-phase induction motors) is widely used in various industrial fields to protect induction motors against overloads and other abnormal conditions (i.e., single phase, unbalanced phases). Optional plug-in type modules can be installed which include the RCRlA ground fault module, RCRlB phase reversal module, and RCRlC ground fault/phase reversal module. -
Page 4: Ratings And Perforxapjczs
T O S H I B A RATINGS PERFORMANCES Table :. ists the ratings and performance of the 21? Relay. Table 1 Ratings al Wee-phase circuits rated up to 600V AC, Applicable ckcuit (Also, applicable to high-voltage circuit: by cc&in&q with high-voltage CTS) Dual functions (2E relay) ---- Over load a Protective functions Single phase protection. - Page 5 T O S H I B A 8 2 0 H P 1Y Power circuit Detecting 0.3 VA/phase at rateJ current circuit contact Output contact specifications capacity 125V IX!-0.2A (iJR=7ms) 250V DC-O.lA (IdR=7ms) Fault in&cation Reset r,ode R e s e t Ambient - 1 0 ?I +GOOC Application...
- Page 6 T O S H I B A The a'dditional modules are connected to the 2E relay with gold plated pins and their principal ratings are the same as that of 2E Relay. In Table 2 is listed its ratings range and parformances. Table 2 Ratings and Performances of optional modules Operating...
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Page 7: Iiom To Set
Overload operating characteristics Ultimate operating current --- 105-125 of current setting Single phase protection operating characteristics min. operating current --- 85% of current setting L-./,-characteristics- MULTIPLES OF LOAD CURRENT RUNNING STARTING Operating characteristic curve Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com... -
Page 8: Precautions In Applications
E C A U T I O N S L I C A T I O N S When planning to use Toshiba Static 2E Relays, be sure to give full consideration to the following precautions: (Control power source supply The power circuit must be arranged so that control main circuit is switched ON. - Page 9 T O S H I B A (3) Application on DC systems See Fig. 2. In DC control systems main current does not flow sinusoidaly even though the power system (voltage) may be C, so the 2E Relay, and/or additional modules, are not applicable.
- Page 10 T O S H I B A (4) The 2E Relay has phase unbalance detecting charac- teristics. Figure 4 shows how the current's unbal- anced trip point depends upon the relay's current setting and the unbalanced current rate. Current setting value:iOo% Setting Current setting value:150% I max.:...
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Page 11: Installation
INSTALLATION Surface Mounting - The 2E relay will be shipped with mounting feet loose. attach the mounting feet to the Before installation, The below shown mounting feet relay as shown Fig. 4. and hardware will be shipped together with the relay as standard accessory. - Page 12 T O S H I B A Flush Mountins For flush mounting, flush mounting (order separately) required. Before installation, attach the flush mounting fee to the relay instead of surface mounting feet as shown Fig.5. Flush Mounting Parts Quantity Flush Mounting Feet Flush...
- Page 13 T O S H I B A Optional Module Installation Install module with knurl screws (accessory module) as shown Fig. 6 after relay installation and wiring to the relay are completed. For: module installation, peel off the side label on relay to open the holes for connection pins.
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Page 14: Circuit Constructions
T O S H I B A CIRCUIT CONSTRUCTIONS When wiring primary wires through windows, Fig. 9, take care of the following: Primary wires must go through the correct CT windows. Primary wires must go through in the same direction. number of Primary wires... - Page 15 T O S H I B A Low-voltage pows!r supply 200V 21 240V AC In case of low-voltage circuits (rated at 600V or less) Applied circuit wire is directly passed through the built-in CT window. CAUTION: AC 100-120V --- Terminals l-2 AC 200-240V --- Terminals l-3 Tow-voltage ** Connections of output contacts...
- Page 16 Kigh-voltage power s t o p ___- t - s t a r t High voltage High-voltage CT secondary circuit wires pass through the windows of High-voltage the built-in CT's. induction :ootor Fig. 9 Typical application to high-voltage induction motor circuit with ground fault protection Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com...
- Page 17 T O S H I B A relay is offered in three models, Model Ampere-Turn Rating 55AT with each having ?.n adjustable (Ampere-Turn) range of 75%150%. Each model has direct wiring capability through the three current transformer's windows. the use of extern;J current transformers is required. Selection of the suitable model require some prelimi- See "Current Setting Adjustments"...
- Page 18 T O S H I B A SELECTION SELECTION ADJUSTMENTS ADJUSTMENTS Amp-Turn Rating rounded off to nearest integer (CT wraps are additive). Current Setting % Motor FLA x N(T) ~100% 2E Amp-Turn RAz-xE<ternai CT Ratio* CT Ratio: Ex. 500A/5A CT's = 1OO:l If no external CT's are used, substitute with "1.0".
- Page 19 T O S H I B A the Current Setting 8 = 240 x N(T) x 100% 7 x (300) = N(T) x 57.14%. And if 2 turns through the 2E Relay's CT windows (from the external CT'S) are used, the 8 Dial Setting = 2 x 57.14 = 114% = 110% or 115% (2) Time setting Determine the protection curve from 2E Relay operating...
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Page 20: Inspection And Maintei4Ance
T O S H I B A INSPECTION MAINTENANCE Before inspection and maintenance, read the following items to determine the maintenance period. Intervals inspection (1) When the 2E Relay and/or additional module in an ordinary electric control room is operated under relatively good environmental conditions . -
Page 21: Trouble-Shooting
T O S H I B A TROUBLE-SHOOTING in accordance with the sequence shown in Fig. 10 or Fig. 11. take the actions shown in the After clarifying the cause, chart to correct the problem. Check the sequence of Incorrect Correct it primary wires... - Page 22 start-up and operation Check the phase sequence Check the motor and load to eliminate Abnormal Ch Operates normally current value (See Fig. 1) Fig. 11 Trouble-shooting table Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com...
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Page 23: Installation Test Procedure
T O S H I B A It is not necessary to schedule periodic maintenance and testing of the ground fault protection. However, if tests are desired to confirm the proper operation of the system, one of the following procedures can be used. 1. - Page 24 T O S H I B A Test , - - - -----------t---t r - - - - - - - - - - - - - - - - - - - - GROUND GROUND CURRENT- DELAY - CURRENT- DELAY - DETECT DETECT ‘PLY...
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Page 25: Groijnd Fault Test Form
T O S H I B A Setting Result Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com...