11 — Electrical & Electronics
SwitchGear Testing Kit
A test kit used to verify the operating characteristics, contact resistance, and trip settings of low-voltage switchgear such as circuit breakers and contactors.
01 — Same Laboratory
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140
Earth Fault Relay Testing System
A test system used to calibrate and verify the operation of earth fault protection relays in power distribution systems.
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141
Electromagnetic Relay Testing Education Kit
An educational kit used to demonstrate the construction, operation, and testing of electromagnetic protection relays.
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142
Electromechanical Over-Current Relay Test Kit
A test kit used to verify the pickup current and time-current characteristics of electromechanical over-current protection relays.
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143
Numerical Over Current Relay
A microprocessor-based protective relay trainer used to set pickup current and time-delay curves and demonstrate numerical over-current protection of feeders and equipment.
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144
Relay Testing Kit
A portable test set that injects controlled current and voltage signals into protective relays to verify pickup, dropout, and operating-time settings.
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145
Differential Protection of Transformer Simulation Panel
A simulation panel that reproduces internal and external transformer faults to demonstrate the operation of differential protection relays and current transformer connections.
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147
Three Phase Induction Motor Protection Simulation Unit
A simulation unit that reproduces overload, single-phasing, and earth-fault conditions on a three-phase induction motor to demonstrate motor protection schemes.
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148
Transmission Line Protection Simulation Kit
A simulation kit that reproduces line faults on a modeled transmission network to demonstrate distance, differential, and over-current protection schemes.
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149
Distance Protection Trainer
Trainer with a scaled transmission line and distance relay for setting and testing Zone 1, 2 and 3 reach and observing impedance-plane operation. Demonstrates the principle of impedance-based line protection.
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150
IDMT Over-Current Relay
Inverse definite minimum time over-current relay with adjustable plug setting multiplier and time multiplier setting. Used for plotting the inverse time-current curve and for relay-coordination exercises.
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151
Buchholz Relay Demonstration Unit
Sectioned Buchholz relay mounted with a simulated conservator connection so the gas-accumulation alarm and oil-surge trip actions can be demonstrated. Covers transformer incipient-fault protection.
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152
Circuit Breaker Demonstration Unit
Cut-away or working circuit breaker showing contact assembly, arc-control device and operating mechanism, with manual and electrical trip. Used to teach arc quenching and breaker duty.
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