Trip circuit supervision relay Model
TCSR-
□□□□
A patented article; 10-2009-18744
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Features _ Continuous supervision of complete
trip circuit, independent of the circuit breaker position _ Detects faults in the supervised circuits, such as loss of voltage, circuit breakage, contact degeneration in connections and increased resistance in wires, contacts and coils _ Low-level measuring current enables application in sensitive or high resistance circuits _ Operation delay to avoid spurious signals. (For instance, on circuit breaker operations) _ Operation indication by a single dual-colour LED _ Complete range of rated voltages (either AC or DC) _ Galvanic isolation is possible between the auxiliary source and supervised circuit _ Very low burden on the auxiliary source
Description The supervision relay TCSR is designed for the supervision of trip circuits and other important control and monitoring circuits. The supervision function is based on a low-level (~ 6 mA) current injection principle. The injected current is sensed by two opto-couplers. In normal condition the indicator LED glows red and output relays are in ‘picked-up’ condition. In the event of a fault, the measuring current goes below the operating value of the relay or completely stops flowing. The supervision relay operates (drops-off) after a delay of 1.0 sec and the indicator LED turns red. The supervision relay, for its functioning requires an auxiliary voltage (AC or DC) of a rated value to be connected to the terminals of section 5. This voltage can be the same as that of the supervised circuit or it could be a separate source with same magnitude (AC or DC). Should a fault occur in the auxiliary voltage supply, the LED does not glow and the output relay drops off. Relays with differing rated voltage for supervision circuit and auxiliary supply can be supplied as a special execution
Application The supervision function is particularly important when there is only one tripping coil and CB tripping is vital. (For instance, in the case of generator circuit breakers or any other important circuit breaker in distribution networks.) The supervision relay type TCSR is intended for continuous supervision of a circuit breaker trip circuit and to sound an alarm for loss of auxiliary supply or faults on the tripcoil or its wires. This is independent of the breaker position, faults on the breaker auxiliary contacts and faults in the supervision relay itself.
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Technical data 1.Energizing quantities, rated values and limits Rated voltage of super voided and auxiliary circuit UAUX Operative voltage range
48, 110-125, 220V DC 80-110% of rated U AUX
Operate (Drop-off) time at rated voltage UAUX & 25 Burden at rated voltage
0.8 – 1.0sec. 48
110
125
220
Auxiliary circuit(W)
0.54
0.54
0.85
2.7
Supervision circuit(W)
0.11
0.60
0.63
1.2
–
–
Mechanical durability
1Million switching operation and 200 Draw-out/plug-in operation
2.Contact data Contact configuration (self reset)
1 C/O(1ab)
Max voltage with
240V / AC
inconstant system
30V /DC
Rated current
5A
Max. switching current
8A
Max. switching power
1250VA/240W
Operating time
Max.20msec
Electrical endurance
100,000 operations, at 30 operation/minute,
3.Test and Standard Test voltages
Dielectric test voltage (IEC60255-5)
2 kV, 60 Hz, 1 min
Impulse test voltage (IEC 60255-5)
5 kV, 1.2/50 μs
Disturbance
HF disturbance test (IEC 60255-5)
2.5 kV, 1 MHz
tests
Fast transients (IEC 61000-4-4)
2 kV, 5/50 ns, 1 min.
Spark interference
4…8 kV
Environmental
Service temperature range
-10…+55°C
conditions
Damp heat test (IEC 60068-2-30)
93…95%, +55°C, 6 x 24 h
Transport and storage temperature range
-40…+70°C
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4.When ordering, please specify: Ordering information
Ordering example
1. Type designation and quantity 2. Operate delay time.
TCSR 1B11 5 pieces 1 sec
TCSR 2B11 5 pieces 1 sec
3. Auxiliary voltage
Uaux=110 V dc
Uaux=110 V dc
4. Accessories
8Pin terminal socket 5 pieces YSSK08 – Applied socket by Yong sung
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5.Connection diagram and Contact configuration
TCSR 1B11
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TCSR 2B11
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6.Dimensions
TCSR 1B11
TCSR 2B11
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