Reference Standard: DL / T624-1997 Introduction DBJB-102 type relay calibrator is the successful development of a new generation based on the original calibration device. The instrument internal AC and DC voltage, current power source using the latest technology for on-site staff will supply instrumentation used in other experiments provide a convenient, simplified operation of this instrument to achieve the premise of increasing the function of the instrument, capable of Common relay panel layout of the check and compact, allowing the operator to simple, clear, and therefore the majority of users Ying won praise operations. Types of product characteristics of the test relay: Current relays, voltage relays, reclosing relays, relays, differential relays; instrument with a fixed value for the output voltage source individually; the use of digital display for easy reading; compact instrument structure, lightweight, easy to carry, transport. Specifications 1. AC current output characteristics 0 ~ 100A / 10V adjustable 0 ~ 20A / 35V adjustable 0 ~ 5A / 8V adjustable AC voltage 0 ~ 250V / 4A adjustable DC current 0 ~ 20A / 25V adjustable DC voltage 0 ~ 300V / 4A adjustable setpoint output DC voltage 24V 48V 110V 220V millisecond time table: 0 ~ 99.9999s (999.999s can be changed according to user requirements) Resolution: 0.1ms 2. instrument Power: AC220V ± 5%, 50Hz ± 5% 3. Features: This instrument can be a variety of the following groups of protection relays or verified. ① measuring relays include: current, voltage relay, measure its start value, the return value of its coefficient. ② relay: measure its start value, the return value and the operating time, time measurement error of less than 0.2ms. ③ relay: check with the start winding and maintain all types of relay coils can be measured start value, return values, and action to keep the value of time. ④ reclosing relays: can test capacitor charging, charging time, reclosing the test of time, in the middle element. ⑤ differential relay: DC excitation experiments can be carried out, the braking characteristics of the experiment, the voltage characteristic experiment. ⑥ (other kinds of uncommon relay.